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Cheap flights from Dulles Intl (IAD) to Portugal from $336

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
IAD — LIS
Jun 7 — Jun 141
From?
To?
Fri 6/7
Fri 6/14
1 adult, Economy
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How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Portugal?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 42 days in advance, which can save you up to 30% on flights from Washington, D.C. Dulles Intl Airport to Portugal compared to booking the week you need them. Waiting 42 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $714. For sooner than that we have options available in the next 3 days from $1,003.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Portugal?

The best pricing can be found in the month of January. Prices to Portugal from Washington, D.C. Dulles Intl Airport average $870. You can even find prices in January for less than $870, as users have found deals to Portugal from as low as $476. The month of June appears to be one of the more expensive times to travel to Portugal from Washington, D.C. Dulles Intl Airport. Flying in the targeted month can save you up to 39%.

What is the cheapest time of day to fly from IAD to PT?

When flying from Washington, D.C. Dulles Intl Airport to Portugal, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap TAP AIR PORTUGAL flights from Dulles Intl to Portugal

Explore cheap flight options specifically provided by TAP AIR PORTUGAL for the route between Dulles Intl and Portugal. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,807,690 searches. Data last updated June 2, 2024.
Take a look at some of the lowest-priced TAP AIR PORTUGAL flights heading from Washington, D.C. to Portugal. Come back soon if you're not finding the exact deal you're looking for.
Wed 10/210:20 pmIAD - OPO
1 stop13h 45mTAP AIR PORTUGAL
Wed 10/911:00 amOPO - IAD
1 stop14h 20mTAP AIR PORTUGAL
Deal found 6/1$428
Mon 9/305:35 pmIAD - OPO
1 stop12h 20mTAP AIR PORTUGAL
Wed 10/169:00 amOPO - IAD
1 stop11h 15mTAP AIR PORTUGAL
Deal found 6/2$430
Mon 9/235:35 pmIAD - OPO
1 stop12h 20mTAP AIR PORTUGAL
Wed 10/211:00 amOPO - IAD
1 stop33h 20mTAP AIR PORTUGAL
Deal found 6/1$433
Mon 10/75:35 pmIAD - OPO
1 stop10h 25mTAP AIR PORTUGAL
Tue 10/158:55 amOPO - IAD
1 stop11h 25mTAP AIR PORTUGAL
Deal found 5/31$454
Wed 11/2710:30 pmIAD - OPO
1 stop15h 30mTAP AIR PORTUGAL
Mon 12/25:00 amOPO - IAD
1 stop13h 00mTAP AIR PORTUGAL
Deal found 6/2$467
Thu 10/310:20 pmIAD - OPO
1 stop19h 05mTAP AIR PORTUGAL
Mon 10/146:00 pmOPO - IAD
1 stop26h 20mTAP AIR PORTUGAL
Deal found 6/1$468
Wed 11/2710:30 pmIAD - OPO
1 stop15h 30mTAP AIR PORTUGAL
Mon 12/25:00 amOPO - IAD
1 stop13h 00mTAP AIR PORTUGAL
Deal found 6/1$470
Thu 10/105:20 pmIAD - OPO
1 stop10h 50mTAP AIR PORTUGAL
Tue 10/158:55 amOPO - IAD
1 stop11h 25mTAP AIR PORTUGAL
Deal found 5/31$471
Thu 10/105:20 pmIAD - OPO
1 stop10h 50mTAP AIR PORTUGAL
Wed 10/169:00 amOPO - IAD
1 stop11h 15mTAP AIR PORTUGAL
Deal found 5/31$494

Cheap Air France flights from Dulles Intl to Portugal

Explore cheap flight options specifically provided by Air France for the route between Dulles Intl and Portugal. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,807,690 searches. Data last updated June 2, 2024.
Some of the best deals we've found on Air France flights traveling from Washington, D.C. to Portugal. Check back soon if you're not seeing flights that suit your needs.
Fri 9/274:59 pmIAD - OPO
2 stops34h 26mAir France
Wed 10/169:15 amOPO - IAD
1 stop11h 55mAir France
Deal found 6/1$605
Fri 10/44:59 pmIAD - OPO
2 stops34h 26mAir France
Tue 10/84:20 pmOPO - IAD
1 stop31h 50mAir France
Deal found 6/1$617
Thu 10/36:25 pmIAD - OPO
1 stop16h 05mAir France
Mon 10/144:20 pmOPO - IAD
2 stops29h 10mAir France
Deal found 6/1$621
Mon 6/106:25 pmIAD - OPO
1 stop16h 05mAir France
Sun 6/169:15 amOPO - IAD
1 stop11h 55mAir France
Deal found 6/1$823
Sun 6/95:03 pmIAD - LIS
1 stop9h 57mAir France
Sat 6/2212:10 pmLIS - IAD
1 stop12h 00mAir France
Deal found 6/1$1,329
Sat 6/85:03 pmIAD - LIS
2 stops24h 22mAir France
Tue 6/256:50 pmLIS - IAD
2 stops27h 37mAir France
Deal found 6/1$1,351
Sun 6/95:23 pmIAD - LIS
2 stops16h 27mAir France
Tue 6/255:40 amLIS - IAD
2 stops16h 47mAir France
Deal found 6/1$1,352
Sun 6/95:03 pmIAD - LIS
1 stop9h 57mAir France
Sat 6/153:55 pmLIS - IAD
2 stops31h 24mAir France
Deal found 6/2$1,397

Cheap Dulles Intl to Portugal flights in June & July 2024

Find cheap flight options from Dulles Intl to Portugal specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,807,690 searches. Prices were last updated on June 2, 2024.
Scroll through some of the best deals on flights from Washington, D.C. to Portugal in 2024. For more flight deals, be sure to check back very soon.
Thu 6/610:20 pmIAD - OPO
1 stop19h 05mTAP AIR PORTUGAL
Wed 6/129:00 amOPO - IAD
1 stop11h 15mTAP AIR PORTUGAL
Deal found 6/2$822
Mon 6/109:20 pmIAD - OPO
1 stop13h 10mAir France
Sun 6/169:15 amOPO - IAD
1 stop11h 55mAir France
Deal found 6/2$823
Thu 6/66:25 pmIAD - OPO
1 stop16h 05mDelta
Sun 6/95:00 amOPO - IAD
1 stop15h 35mDelta
Deal found 6/2$825
Thu 6/612:35 pmIAD - OPO
2 stops14h 50mDelta
Wed 6/129:15 amOPO - IAD
1 stop14h 55mDelta
Deal found 6/2$828
Thu 6/612:35 pmIAD - OPO
2 stops14h 50mDelta
Sun 6/95:00 amOPO - IAD
1 stop15h 35mDelta
Deal found 6/2$830
Sun 6/235:25 pmIAD - OPO
1 stop12h 15mKLM
Wed 7/39:15 amOPO - IAD
1 stop11h 55mKLM
Deal found 6/2$836
Wed 6/55:50 pmIAD - OPO
1 stop23h 25mKLM
Mon 6/108:55 pmOPO - IAD
1 stop24h 05mKLM
Deal found 6/1$838
Thu 6/612:35 pmIAD - OPO
2 stops14h 50mDelta
Wed 6/125:00 amOPO - IAD
2 stops18h 19mDelta
Deal found 6/2$840
Thu 6/278:45 pmIAD - FAO
1 stop16h 35mSWISS
Sun 8/259:10 amFAO - IAD
2 stops36h 05mSWISS
Deal found 6/2$841

Dulles Intl to Portugal 2024 flight deals

Discover exclusive flight deals for travel between Dulles Intl and Portugal in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,807,690 searches. Data last updated June 2, 2024.
Scroll through some of the best deals on flights from Washington, D.C. to Portugal in 2024. For more flight deals, be sure to check back very soon.
Sun 11/36:05 pmIAD - LIS
1 stop21h 10mPLAY
Mon 11/119:15 pmLIS - IAD
1 stop24h 40mPLAY
Deal found 6/2$391
Sun 11/36:05 pmIAD - LIS
1 stop21h 10mPLAY
Mon 11/119:15 pmLIS - IAD
1 stop24h 40mPLAY
Deal found 6/2$396
Mon 9/235:35 pmIAD - OPO
1 stop12h 20mTAP AIR PORTUGAL
Wed 10/210:55 pmOPO - IAD
1 stop26h 25mTAP AIR PORTUGAL
Deal found 6/2$423
Mon 10/75:35 pmIAD - OPO
1 stop21h 55mTAP AIR PORTUGAL
Mon 10/1410:55 pmOPO - IAD
1 stop21h 25mTAP AIR PORTUGAL
Deal found 6/2$428
Mon 9/305:35 pmIAD - OPO
1 stop12h 20mTAP AIR PORTUGAL
Wed 10/169:00 amOPO - IAD
1 stop11h 15mTAP AIR PORTUGAL
Deal found 6/2$430
Sun 10/136:50 pmIAD - LIS
1 stop20h 30mPLAY
Mon 10/219:30 pmLIS - IAD
1 stop25h 10mPLAY
Deal found 6/2$440
Thu 11/76:05 pmIAD - LIS
1 stop21h 10mPLAY
Mon 11/119:15 pmLIS - IAD
1 stop24h 40mPLAY
Deal found 6/2$452
Sun 10/206:50 pmIAD - LIS
1 stop20h 30mPLAY
Fri 11/89:15 pmLIS - IAD
1 stop24h 40mPLAY
Deal found 6/2$462
Wed 11/2710:30 pmIAD - OPO
1 stop15h 30mTAP AIR PORTUGAL
Mon 12/25:00 amOPO - IAD
1 stop13h 00mTAP AIR PORTUGAL
Deal found 6/2$467

Non-stop flights to Portugal from Dulles Intl

Discover non-stop flight options from Dulles Intl to Portugal. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,807,690 searches. Data last updated June 2, 2024.
For a quicker trip, book one of these direct flights from Washington, D.C. to Portugal. Users seeking other options on flights from Washington, D.C. to Portugal should update the search form at the top of the page.
Sun 7/1410:20 pmIAD - LIS
Nonstop7h 15mTAP AIR PORTUGAL
Thu 7/2512:00 pmLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 6/1$877
Mon 7/1510:25 pmIAD - LIS
Nonstop7h 15mTAP AIR PORTUGAL
Tue 7/235:40 pmLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 6/1$878
Sun 7/1410:20 pmIAD - LIS
Nonstop7h 15mTAP AIR PORTUGAL
Wed 7/2411:55 amLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 6/1$879
Thu 7/410:20 pmIAD - LIS
Nonstop7h 15mTAP AIR PORTUGAL
Tue 8/2712:00 pmLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 6/2$882
Tue 7/95:00 pmIAD - LIS
Nonstop7h 30mTAP AIR PORTUGAL
Wed 7/174:20 pmLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 6/1$885
Wed 7/1710:20 pmIAD - LIS
Nonstop7h 15mTAP AIR PORTUGAL
Mon 7/225:30 pmLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 6/2$887
Fri 8/910:15 pmIAD - LIS
Nonstop7h 10mTAP AIR PORTUGAL
Wed 8/2111:55 amLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 6/1$888
Fri 8/1610:15 pmIAD - LIS
Nonstop7h 10mTAP AIR PORTUGAL
Wed 8/2111:55 amLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 6/1$889
Tue 7/165:00 pmIAD - LIS
Nonstop7h 30mTAP AIR PORTUGAL
Fri 7/265:25 pmLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 6/1$890

Dulles Intl to Portugal flights leaving soon

Find last-minute flight options from Dulles Intl to Portugal for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,807,690 searches. Data last updated June 2, 2024.
Consider one of these great deals we found on last-minute flights from Washington, D.C. to Portugal. Users should examine the flight details to ensure there are no surprises.
Mon 6/106:25 pmIAD - OPO
1 stop16h 05mAir France
Sun 6/169:15 amOPO - IAD
1 stop11h 55mAir France
Deal found 6/1$823
Sat 6/89:20 pmIAD - OPO
1 stop13h 10mDelta
Sat 6/155:00 amOPO - IAD
1 stop15h 35mDelta
Deal found 6/1$825
Mon 6/105:03 pmIAD - OPO
2 stops17h 27mDelta
Sun 6/169:15 amOPO - IAD
1 stop11h 55mDelta
Deal found 6/1$828
Sat 6/85:03 pmIAD - OPO
2 stops17h 27mDelta
Sat 6/155:00 amOPO - IAD
1 stop15h 35mDelta
Deal found 6/1$830
Wed 6/125:23 pmIAD - OPO
2 stops17h 07mDelta
Wed 6/199:15 amOPO - IAD
2 stops17h 31mDelta
Deal found 6/1$838
Mon 6/105:03 pmIAD - OPO
2 stops17h 27mDelta
Sun 6/165:00 amOPO - IAD
2 stops17h 27mDelta
Deal found 6/2$840
Sun 6/95:33 pmIAD - OPO
1 stop11h 12mUnited Airlines
Wed 6/269:25 amOPO - IAD
1 stop11h 59mUnited Airlines
Deal found 6/1$872
Mon 6/105:35 pmIAD - LIS
Nonstop7h 30mMultiple Airlines
Mon 6/176:55 amLIS - IAD
3 stops39h 45mMultiple Airlines
Deal found 6/1$934
Mon 6/105:07 pmIAD - LIS
3 stops32h 23mMultiple Airlines
Mon 6/178:15 amLIS - IAD
2 stops32h 18mMultiple Airlines
Deal found 6/1$939

One-way flights to Portugal from Dulles Intl

Search for one-way flight options from Dulles Intl to Portugal. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,807,690 searches. Data last updated June 2, 2024.
Take a look at some of the best available options we've come across on one-way flights from Washington, D.C. to Portugal. Those needing a return flight from Washington, D.C. to Portugal can use the search form above.
Mon 7/158:30 pmIAD - FAO
2 stops17h 10mMultiple Airlines
Deal found 6/1$336
Mon 7/158:30 pmIAD - OPO
3 stops33h 15mMultiple Airlines
Deal found 6/1$348
Mon 7/158:45 pmIAD - FAO
1 stop30h 50mSWISS
Deal found 6/1$357
Mon 7/1510:25 pmIAD - OPO
2 stops27h 00mMultiple Airlines
Deal found 6/1$359
Mon 7/155:35 pmIAD - OPO
1 stop11h 20mTAP AIR PORTUGAL
Deal found 6/1$400
Fri 7/126:50 pmIAD - OPO
1 stop20h 10mPLAY
Deal found 6/2$401
Mon 7/155:35 pmIAD - FNC
3 stops33h 15mMultiple Airlines
Deal found 6/1$403
Mon 7/156:50 pmIAD - OPO
1 stop20h 10mPLAY
Deal found 6/1$414
Mon 7/159:20 pmIAD - OPO
1 stop15h 40mRoyal Air Maroc
Deal found 6/2$415

Find flights from Dulles Intl to Portugal within your budget

Customize your flight search to find flights from Dulles Intl to Portugal that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,807,690 searches. Data last updated June 2, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$428 - $601

Route

Depart

Return

Price

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 10/2

1 stop13h 45m

Porto

Wed 10/9

1 stop14h 20m

$428

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 11/13

1 stop16h 35m

Porto

Tue 11/26

2 stops39h 24m

$493

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 11/13

2 stops16h 05m

Porto

Tue 11/26

1 stop14h 50m

$497

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sun 10/13

1 stop13h 10m

Porto

Wed 10/16

1 stop11h 55m

$553

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Mon 9/30

1 stop15h 50m

Porto

Wed 10/16

2 stops28h 10m

$554

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Mon 8/5

1 stop12h 15m

Porto

Mon 8/19

2 stops17h 25m

$576

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Tue 10/8

2 stops20h 35m

Porto

Thu 10/17

2 stops28h 10m

$579

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Fri 9/27

2 stops27h 50m

Porto

Tue 10/15

1 stop11h 50m

$586

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Mon 9/30

1 stop30h 10m

Porto

Sat 10/19

2 stops30h 40m

$601

Flights are sorted by cheapest first

Deals found on 6/1

No data available for this route at this time. Please check back soon.

Best time to book a flight from Dulles Intl to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portugal. Reviews last updated June 2, 2024.
Read reviews from past customers who have flown TAP AIR PORTUGAL, Air France and SWISS from Washington, D.C. to Portugal. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,402 reviews
Check prices

Crew

8.6

Food

7.4

Entertainment

8.0

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.0
Very good
10,402 reviews
Delta
8.0
Very good
10,402 reviews
Check prices

Crew

8.6

Food

7.4

Entertainment

8.0

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

KLM
7.9
Good
1,507 reviews
Delta
8.0
Very good
10,402 reviews
Check prices

Crew

8.6

Food

7.4

Entertainment

8.0

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

SWISS
7.8
Good
1,940 reviews
Delta
8.0
Very good
10,402 reviews
Check prices

Crew

8.6

Food

7.4

Entertainment

8.0

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Austrian Airlines
7.7
Good
1,016 reviews
Delta
8.0
Very good
10,402 reviews
Check prices

Crew

8.6

Food

7.4

Entertainment

8.0

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

JetBlue
7.6
Good
4,336 reviews
Delta
8.0
Very good
10,402 reviews
Check prices

Crew

8.6

Food

7.4

Entertainment

8.0

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Washington, D.C. Dulles Intl Airport to Portugal for under $500 on Cheapflights?

    Yes, there are multiple flights from Washington, D.C. Dulles Intl Airport to Portugal for under $500. The cheapest flight booked recently is on TAP AIR PORTUGAL for just $428, but on average you can expect to pay $485.

  • Are there nonstop flights from Washington, D.C. Dulles Intl Airport to Portugal for under $900 on Cheapflights?

    Cheapflights has at least 20 direct flights from Washington, D.C. Dulles Intl Airport to Portugal under $900. A good price for a nonstop flight from Washington, D.C. Dulles Intl Airport to Portugal is less than $893.

  • Are there last-minute flights available from Washington, D.C. Dulles Intl Airport to Portugal for under $900?

    There are currently 20+ open flights from Washington, D.C. Dulles Intl Airport to Portugal within the next 7 days for less than $900.

  • What days are nonstop flights available from Washington, D.C. Dulles Intl Airport to Portugal?

    Nonstop flights can be found on the following days: Monday.

  • How many flights depart from Washington, D.C. Dulles Intl Airport to Portugal on average per day?

    Per day, 2 flights depart from Washington, D.C. Dulles Intl Airport to Portugal on average.
    Afternoon (Noon - 6pm) - 100% of flight departures

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Portugal?

    TAP AIR PORTUGAL and United Airlines can get you from Washington, D.C. Dulles Intl Airport to Portugal in just under 13h 45m. Your travel time can differ by up to 2h 50m. The distance between Washington, D.C. Dulles Intl Airport and Portugal is about 3602 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Portugal one-way?

    The cheapest airlines for a one-way flight from Washington, D.C. Dulles Intl Airport to Portugal are SWISS ($357), TAP AIR PORTUGAL ($400), and PLAY ($401).

  • What are the most popular routes from Washington, D.C. Dulles Intl Airport to Portugal?

    While some choose either Washington, D.C. Dulles Intl - Porto or Washington, D.C. Dulles Intl - Faro, Washington, D.C. Dulles Intl - Lisbon Humberto Delgado is the most popular route from Washington, D.C. Dulles Intl Airport to Portugal.

  • What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Portugal?

    The top 3 most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to Portugal are TAP AIR PORTUGAL (80%), JetBlue (79%) and Air Canada (67%).

  • What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Portugal?

    Looking for the cheapest flight from Washington, D.C. Dulles Intl Airport to Portugal? While on average our users pay $1,866, our data indicates the cheapest price to be $349. The most popular route (Washington, D.C. Dulles Intl - Lisbon Humberto Delgado), is priced around $400.

  • What does IAD to LIS mean?

    IAD and LIS are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. IAD to LIS refers to a flight route from Washington, D.C. Dulles Intl Airport to Lisbon Humberto Delgado Airport. While you’re still figuring out your travel plans, it’s not a bad idea to learn the names and codes of other airports around these areas: Porto Airport (OPO), Faro Airport (FAO), Funchal Madeira Airport (FNC), Ponta Delgada Nordela Airport (PDL), Lajes Airport (TER).

  • Can I find deals for flights from Dulles Intl to Portugal that include extra baggage allowance?

    The amount of baggage you can bring on your Dulles Intl to Portugal flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Dulles Intl to Portugal with specific airlines?

    Yes, Cheapflights allows you to browse and filter Dulles Intl to Portugal flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Dulles Intl to Portugal that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Portugal flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Portugal?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Portugal.

  • Can I find deals for business class flights from Dulles Intl to Portugal?

    Yes. Cheapflights offers flight deals from Dulles Intl to Portugal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Dulles Intl to Portugal that allow pets onboard?

    Many airlines flying from Dulles Intl to Portugal offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Dulles Intl to Portugal?

    Yes, you can often find last-minute deals on Dulles Intl to Portugal flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Washington, D.C. Dulles Intl Airport to Portugal flight deals updated?

    The Washington, D.C. Dulles Intl Airport to Portugal flight deals you see on this page were last updated on 6/2.

  • What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Portugal?

    Before booking your flight from Washington, D.C. Dulles Intl Airport to Portugal check out the most popular airlines for this route: American Airlines, Air Canada or Air France.

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Portugal?

    Currently, December is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Portugal (average of $595). Flying from Washington, D.C. Dulles Intl Airport to Portugal in June is currently the most expensive (average of $1,194). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Dulles Intl to Portugal
See prices for flight routes from nearby airports that may be better suited for you.

Dulles Intl to Heathrow flights
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Dulles Intl to Leonardo da Vinci/Fiumicino flights
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Reagan-National to Heathrow flights
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Reagan-National to Gatwick flights
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Dulles Intl to Orly flights
Reagan-National to Charles de Gaulle flights
Dulles Intl to Barcelona-El Prat flights
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Reagan-National to Athens flights
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Baltimore to Leonardo da Vinci/Fiumicino flights
Reagan-National to Leonardo da Vinci/Fiumicino flights
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Dulles Intl to Keflavik Intl flights
Baltimore to Istanbul flights
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Baltimore to Madrid flights
Baltimore to Keflavik Intl flights
Dulles Intl to Munich flights
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Reagan-National to Orly flights
Reagan-National to Keflavik Intl flights
Dulles Intl to Vienna flights
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Reagan-National to Frankfurt flights
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Baltimore to Dublin flights
Dulles Intl to Luton flights
Reagan-National to Lisbon flights
Dulles Intl to Malpensa flights
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Dulles Intl to Sabiha Gokcen flights
Dulles Intl to Bruxelles-National flights
Dulles Intl to Linate flights
Baltimore to Lisbon flights
Baltimore to London City flights

Top 10 airlines flying from Dulles Intl to Portugal

Discover the top 10 airlines that operate flights from Dulles Intl to Portugal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,807,690 searches. Data last updated June 2, 2024.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$296Average$378FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
SWISSCheapest$413Average$669FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Air FranceCheapest$418Average$757FlexibilityNo cancel feeOn-time77%
Search Air France flights
DeltaCheapest$421Average$796FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
LufthansaCheapest$423Average$715FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
KLMCheapest$428Average$755FlexibilityNo cancel feeOn-time75%
Search KLM flights
Brussels AirlinesCheapest$435Average$563FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
IberiaCheapest$457Average$704FlexibilityNo cancel feeOn-time77%
Search Iberia flights
TAP AIR PORTUGALCheapest$478Average$1,003FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
United AirlinesCheapest$485Average$1,117FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
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Washington, D.C. Dulles Intl Airport to Azores flights

Search flights from Dulles Intl to Portugal by cabin class

Find flights from Dulles Intl to Portugal, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from Dulles Intl to Portugal

Find hourly flight availability from Dulles Intl to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 2, 2024.
0%of flight departuresEarly morningMidnight to 6 am
0%of flight departuresMorning6 am to noon
8%of flight departuresAfternoonNoon to 6 pm
92%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

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Fly with Cheapflights

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How does Cheapflights help users find flights from Dulles Intl to Portugal?

Cheapflights makes it easy to find Dulles Intl to Portugal flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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Cheapflights helps you find that perfect flight to Portugal from Dulles Intl by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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