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Cheap flights from Ontario to Louisville (ONT - SDF) from $219

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 8/8. 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.
ONT — SDF
May 25 — Jun 11
From?
To?
Sat 5/25
Sat 6/1
1 adult, Economy
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The best prices from Ontario to Louisville Intl are usually found in September or December, booked 81 days in advance, depart on a Saturday or Wednesday and return on a Saturday

Cheap flight deals from Ontario to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Louisville (SDF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 20, 2024.

Popular in

August

Cheapest in

September

Average price

$518

Round-trip from

$287
High demand for flights, 33% potential price rise
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Best time to find cheap flights, 68% potential price drop
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Average for round-trip flights in May 2024
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From Ontario to Louisville Intl
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What is the cheapest day to fly round-trip from Ontario to Louisville?

Leaving on a Friday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 31% on the overall cost on flights from Ontario to Louisville.

How far in advance should I book a flight from Ontario to Louisville?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 19 days in advance, which can save you up to 104% on flights from Ontario to Louisville compared to booking the week you need them. Waiting 19 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 $121. For sooner than that we have options available in the next 3 days from $268.

What is the cheapest month to fly from Ontario to Louisville?

August can be a great time to fly to Louisville from Ontario with a flight ticket averaging about $257. Cheapflights users have found deals in the month of August for as cheap as $87. The most expensive prices can be found in the month of March.

When is the cheapest time to fly from Ontario to Louisville (ONT - SDF)?

Unlike at noon, when flights are generally more expensive, you can save up to 84% on flights from Ontario to Louisville by exploring options for tickets in the afternoon.

Cheap American Airlines flights from Ontario to Louisville

Explore cheap flight options specifically provided by American Airlines for the route between Ontario and Louisville. 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 2,663,308 searches. Data last updated May 20, 2024.
Check out some of the cheapest American Airlines flights we've come across from Ontario to Louisville. Make sure to check back often as deals are often changing.
Fri 9/2711:00 pmONT - SDF
1 stop8h 44mAmerican Airlines
Mon 9/306:39 pmSDF - ONT
1 stop6h 03mAmerican Airlines
Deal found 5/19$437
Tue 7/1612:43 pmONT - SDF
1 stop6h 52mAmerican Airlines
Sat 7/203:42 pmSDF - ONT
1 stop8h 33mAmerican Airlines
Deal found 5/19$456
Tue 7/166:15 amONT - SDF
2 stops10h 29mAmerican Airlines
Sat 7/203:42 pmSDF - ONT
1 stop8h 33mAmerican Airlines
Deal found 5/19$461
Mon 7/812:43 pmONT - SDF
1 stop6h 52mAmerican Airlines
Mon 7/158:35 pmSDF - ONT
1 stop6h 14mAmerican Airlines
Deal found 5/19$516
Tue 7/211:59 pmONT - SDF
1 stop16h 53mAmerican Airlines
Mon 7/88:35 pmSDF - ONT
1 stop6h 14mAmerican Airlines
Deal found 5/20$531
Sun 7/712:59 amONT - SDF
1 stop15h 45mAmerican Airlines
Mon 7/158:35 pmSDF - ONT
1 stop6h 14mAmerican Airlines
Deal found 5/19$618
Sat 6/110:34 amONT - SDF
1 stop8h 48mAmerican Airlines
Fri 6/78:32 pmSDF - ONT
1 stop6h 27mAmerican Airlines
Deal found 5/19$653
Wed 6/510:45 pmONT - SDF
1 stop9h 03mAmerican Airlines
Sun 6/95:31 pmSDF - ONT
1 stop8h 28mAmerican Airlines
Deal found 5/19$763
Sun 7/712:59 amONT - SDF
1 stop6h 17mAmerican Airlines
Mon 7/153:31 pmSDF - ONT
2 stops9h 09mAmerican Airlines
Deal found 5/19$830

Cheap United Airlines flights from Ontario to Louisville

Explore cheap flight options specifically provided by United Airlines for the route between Ontario and Louisville. 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 2,663,308 searches. Data last updated May 20, 2024.
Take a gander at the lowest prices we've found on United Airlines flights from Ontario to Louisville. Check back soon if you're not seeing flights that suit your needs.
Tue 9/245:15 amONT - SDF
1 stop6h 17mUnited Airlines
Tue 10/13:45 pmSDF - ONT
1 stop9h 01mUnited Airlines
Deal found 5/18$488
Wed 7/31:30 pmONT - SDF
1 stop5h 58mUnited Airlines
Tue 7/303:47 pmSDF - ONT
1 stop8h 24mUnited Airlines
Deal found 5/19$493
Fri 11/151:00 pmONT - SDF
1 stop5h 57mUnited Airlines
Tue 11/199:05 amSDF - ONT
1 stop6h 33mUnited Airlines
Deal found 5/19$508
Fri 9/277:18 amONT - SDF
2 stops23h 34mUnited Airlines
Mon 9/303:45 pmSDF - ONT
1 stop9h 01mUnited Airlines
Deal found 5/19$512
Thu 11/71:00 pmONT - SDF
1 stop5h 57mUnited Airlines
Sat 11/99:05 amSDF - ONT
2 stops16h 16mUnited Airlines
Deal found 5/19$517
Tue 7/231:35 pmONT - SDF
1 stop5h 53mUnited Airlines
Sat 7/279:15 amSDF - ONT
1 stop11h 13mUnited Airlines
Deal found 5/19$526
Thu 11/75:15 amONT - SDF
1 stop6h 12mUnited Airlines
Sat 11/93:30 pmSDF - ONT
1 stop7h 55mUnited Airlines
Deal found 5/19$528
Thu 6/135:15 amONT - SDF
1 stop6h 17mUnited Airlines
Sun 6/163:28 pmSDF - ONT
1 stop8h 20mUnited Airlines
Deal found 5/19$538
Tue 6/185:15 amONT - SDF
1 stop14h 03mUnited Airlines
Tue 6/253:28 pmSDF - ONT
1 stop8h 20mUnited Airlines
Deal found 5/19$556

Cheap Ontario to Louisville flights in May & June 2024

Find cheap flight options from Ontario to Louisville specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,663,308 searches. Prices were last updated on May 20, 2024.
Listed are some of the best fares we've found on flights departing from Ontario to Louisville in 2024. Check back in a little while for more flight options.
Thu 6/135:15 amONT - SDF
1 stop6h 17mUnited Airlines
Sun 6/163:28 pmSDF - ONT
1 stop8h 20mUnited Airlines
Deal found 5/19$538
Tue 6/185:15 amONT - SDF
1 stop14h 03mUnited Airlines
Tue 6/253:28 pmSDF - ONT
1 stop8h 20mUnited Airlines
Deal found 5/19$556
Fri 6/1410:00 pmONT - SDF
1 stop9h 03mDelta
Sun 6/165:55 pmSDF - ONT
1 stop8h 05mDelta
Deal found 5/19$558
Thu 6/612:49 pmONT - SDF
1 stop6h 39mAmerican Airlines
Sun 6/96:41 pmSDF - ONT
1 stop8h 18mAmerican Airlines
Deal found 5/20$580
Fri 6/145:00 pmONT - SDF
2 stops13h 46mDelta
Sun 6/166:00 amSDF - ONT
1 stop7h 20mDelta
Deal found 5/19$583
Fri 6/281:30 pmONT - SDF
1 stop5h 58mUnited Airlines
Mon 7/19:15 amSDF - ONT
1 stop6h 18mUnited Airlines
Deal found 5/19$584
Thu 6/1310:00 pmONT - SDF
2 stops12h 40mDelta
Sun 6/165:55 pmSDF - ONT
1 stop8h 05mDelta
Deal found 5/19$604
Sat 6/81:29 pmONT - SDF
1 stop5h 49mUnited Airlines
Tue 6/113:28 pmSDF - ONT
1 stop8h 20mUnited Airlines
Deal found 5/20$608
Sat 6/85:15 amONT - SDF
1 stop6h 11mUnited Airlines
Mon 6/103:28 pmSDF - ONT
1 stop8h 20mUnited Airlines
Deal found 5/19$649

Ontario to Louisville 2024 flight deals

Discover exclusive flight deals for travel between Ontario and Louisville in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,663,308 searches. Data last updated May 20, 2024.
Listed are some of the best fares we've found on flights departing from Ontario to Louisville in 2024. Check back in a little while for more flight options.
Sat 8/1712:45 pmONT - SDF
1 stop8h 14mDelta
Tue 8/202:59 pmSDF - ONT
1 stop7h 06mDelta
Deal found 5/20$436
Fri 9/2711:00 pmONT - SDF
1 stop8h 44mAmerican Airlines
Mon 9/306:39 pmSDF - ONT
1 stop6h 03mAmerican Airlines
Deal found 5/19$437
Tue 7/1612:43 pmONT - SDF
1 stop6h 52mAmerican Airlines
Sat 7/203:42 pmSDF - ONT
1 stop8h 33mAmerican Airlines
Deal found 5/19$456
Tue 7/166:15 amONT - SDF
2 stops10h 29mAmerican Airlines
Sat 7/203:42 pmSDF - ONT
1 stop8h 33mAmerican Airlines
Deal found 5/19$461
Tue 9/245:15 amONT - SDF
1 stop6h 17mUnited Airlines
Tue 10/13:45 pmSDF - ONT
1 stop9h 01mUnited Airlines
Deal found 5/18$488
Wed 7/31:30 pmONT - SDF
1 stop5h 58mUnited Airlines
Tue 7/303:47 pmSDF - ONT
1 stop8h 24mUnited Airlines
Deal found 5/19$493
Fri 11/151:00 pmONT - SDF
1 stop5h 57mUnited Airlines
Tue 11/199:05 amSDF - ONT
1 stop6h 33mUnited Airlines
Deal found 5/19$508
Fri 9/277:18 amONT - SDF
2 stops23h 34mUnited Airlines
Mon 9/303:45 pmSDF - ONT
1 stop9h 01mUnited Airlines
Deal found 5/19$512
Mon 7/810:00 pmONT - SDF
1 stop8h 53mDelta
Mon 7/153:27 pmSDF - ONT
1 stop7h 00mDelta
Deal found 5/20$516

Ontario to Louisville flights leaving soon

Find last-minute flight options from Ontario to Louisville 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 2,663,308 searches. Data last updated May 20, 2024.
Book one of these great deals on flights from Ontario to Louisville. Users should be sure to double check the price, date, and time of their last-minute flight.
Thu 5/306:00 amONT - SDF
2 stops11h 50mAlaska Airlines
Sun 6/26:46 amSDF - ONT
2 stops11h 40mAlaska Airlines
Deal found 5/19$954
Thu 5/306:00 amONT - SDF
2 stops13h 58mAlaska Airlines
Mon 6/36:46 amSDF - ONT
2 stops11h 40mAlaska Airlines
Deal found 5/18$1,049
Thu 5/305:15 amONT - SDF
1 stop6h 17mUnited Airlines
Mon 6/33:28 pmSDF - ONT
1 stop8h 20mUnited Airlines
Deal found 5/18$1,243
Thu 5/305:15 amONT - SDF
1 stop6h 17mUnited Airlines
Sun 6/29:21 amSDF - ONT
1 stop11h 07mUnited Airlines
Deal found 5/19$1,288

One-way flights to Louisville from Ontario

Search for one-way flight options from Ontario to Louisville. 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 2,663,308 searches. Data last updated May 20, 2024.
Take a look at some of the one-way flights we've detected from Ontario to Louisville. Users in need of a round-trip flight from Ontario to Louisville instead should update the search form at the top of page.
Thu 8/810:59 pmONT - SDF
1 stop7h 32mDelta
Deal found 5/19$219
Tue 6/2510:00 pmONT - SDF
1 stop9h 03mDelta
Deal found 5/20$228
Mon 7/11:30 pmONT - SDF
1 stop5h 58mUnited Airlines
Deal found 5/19$249
Sat 6/2210:00 pmONT - SDF
1 stop9h 03mDelta
Deal found 5/20$258
Sat 6/2210:00 pmONT - SDF
2 stops8h 46mDelta
Deal found 5/20$263
Fri 6/217:05 amONT - SDF
1 stop9h 15mDelta
Deal found 5/20$278
Mon 7/11:30 pmONT - SDF
2 stops17h 27mUnited Airlines
Deal found 5/19$280
Tue 6/2510:00 pmONT - SDF
2 stops12h 40mDelta
Deal found 5/20$283
Tue 6/186:25 pmONT - SDF
1 stop24h 53mUnited Airlines
Deal found 5/19$286

Find flights from Ontario to Louisville within your budget

Customize your flight search to find flights from Ontario to Louisville 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 2,663,308 searches. Data last updated May 20, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$437 - $737

Route

Depart

Return

Price

OntarioLouisville Intl

ONT - SDF

ONTSDF

Ontario

Fri 9/27

1 stop8h 44m

Louisville Intl

Mon 9/30

1 stop6h 03m

$437

OntarioLouisville Intl

ONT - SDF

ONTSDF

Ontario

Tue 7/16

1 stop6h 52m

Louisville Intl

Sat 7/20

1 stop8h 33m

$456

OntarioLouisville Intl

ONT - SDF

ONTSDF

Ontario

Tue 7/16

2 stops10h 29m

Louisville Intl

Sat 7/20

1 stop8h 33m

$461

OntarioLouisville Intl

ONT - SDF

ONTSDF

Ontario

Tue 9/24

1 stop6h 17m

Louisville Intl

Tue 10/1

1 stop9h 01m

$488

OntarioLouisville Intl

ONT - SDF

ONTSDF

Ontario

Wed 7/3

1 stop5h 58m

Louisville Intl

Tue 7/30

1 stop8h 24m

$493

OntarioLouisville Intl

ONT - SDF

ONTSDF

Ontario

Thu 7/11

1 stop10h 35m

Louisville Intl

Sun 7/14

1 stop11h 50m

$536

OntarioLouisville Intl

ONT - SDF

ONTSDF

Ontario

Mon 7/8

2 stops12h 40m

Louisville Intl

Mon 7/15

1 stop7h 00m

$541

OntarioLouisville Intl

ONT - SDF

ONTSDF

Ontario

Fri 6/14

1 stop9h 03m

Louisville Intl

Sun 6/16

1 stop8h 05m

$558

OntarioLouisville Intl

ONT - SDF

ONTSDF

Ontario

Thu 8/15

2 stops14h 57m

Louisville Intl

Tue 8/20

2 stops14h 29m

$737

Flights are sorted by cheapest first

Deals found on 5/19

When is the best time to book a flight from Ontario to Louisville?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Louisville. Price data was last updated on May 10, 2024.
Booking 81 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ontario to Louisville. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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When is the cheapest time to fly from Ontario to Louisville?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Louisville. Price data was last updated on May 12, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Ontario to Louisville flight should consider departing on Friday afternoons when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
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Average price of flights to Louisville by month

Plan your trip from Ontario to Louisville by taking into account the cheapest months to travel. The average price of a one-way flight from Ontario to Louisville is currently $260 while a round-trip flight costs $523. Price data was last updated on May 12, 2024.

Currently, January is the cheapest month in which you can book a flight from Ontario to Louisville (average of $287). Flying from Ontario to Louisville in April is currently the most expensive (average of $373). 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.

January

$287

February

$332

March

$359

April

$373

May

$361

June

$358

July

$346

August

$304

September

$302

October

$328

November

$338

December

$316

Temperature and rainfall in Louisville by month

Plan your trip to Louisville by taking into account the average temperature and rainfall totals by month.

SDF

Temperature

35.6 - 78.8 °F

Reviews of airlines servicing Louisville

Get insights into the airlines that provide service to Louisville. 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 Louisville. Reviews last updated May 20, 2024.
Read reviews from past customers who have flown American Airlines, United Airlines and Southwest from Ontario to Louisville. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
6,017 reviews
Check prices

Food

7.3

Crew

8.7

Entertainment

7.8

Comfort

8.1

Overall

8.2

Boarding

8.3

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Southwest
8.2
Very good
6,017 reviews
Southwest
8.2
Very good
6,017 reviews
Check prices

Food

7.3

Crew

8.7

Entertainment

7.8

Comfort

8.1

Overall

8.2

Boarding

8.3

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Alaska Airlines
8.1
Very good
9,163 reviews
Southwest
8.2
Very good
6,017 reviews
Check prices

Food

7.3

Crew

8.7

Entertainment

7.8

Comfort

8.1

Overall

8.2

Boarding

8.3

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Delta
8.0
Very good
10,615 reviews
Southwest
8.2
Very good
6,017 reviews
Check prices

Food

7.3

Crew

8.7

Entertainment

7.8

Comfort

8.1

Overall

8.2

Boarding

8.3

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

United Airlines
7.4
Good
10,894 reviews
Southwest
8.2
Very good
6,017 reviews
Check prices

Food

7.3

Crew

8.7

Entertainment

7.8

Comfort

8.1

Overall

8.2

Boarding

8.3

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

American Airlines
7.3
Good
14,472 reviews
Southwest
8.2
Very good
6,017 reviews
Check prices

Food

7.3

Crew

8.7

Entertainment

7.8

Comfort

8.1

Overall

8.2

Boarding

8.3

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Related info for your journey

Find useful and relevant information for your journey from Ontario to Louisville. 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 Ontario to Louisville for under $500 on Cheapflights?

    Yes, there are multiple flights from Ontario to Louisville for under $500. The cheapest flight booked recently is on American Airlines for just $437, but on average you can expect to pay $520.

  • Are there last-minute flights available from Ontario to Louisville for under $1,000?

    There are currently 4+ open flights from Ontario to Louisville within the next 7 days for less than $1,000.

  • What are the cheapest airlines flying from Ontario to Louisville round-trip?

    Flying on American Airlines is currently your cheapest option to Louisville, with prices starting at $437. Additional round-trip tickets that might be worth considering are offered by United Airlines and Southwest, with the lowest prices starting at $488 and $536, respectively. American Airlines is currently priced 9% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Ontario to Louisville one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $219. United Airlines flights start at $249 while deals on Alaska Airlines start at $319 one-way.

  • What are the most popular airlines that fly from Ontario to Louisville?

    American Airlines, Delta and Spirit Airlines are the most popular airlines when flying from Ontario to Louisville.

  • What does ONT to SDF mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Ontario Airport to Louisville Intl Airport flight would often be abbreviated as a ONT to SDF flight.

  • Can I find deals for flights from Ontario to Louisville that include extra baggage allowance?

    The amount of baggage you can bring on your Ontario to Louisville 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 Ontario to Louisville with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to Louisville 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 Ontario to Louisville that include hotel bookings?

    Yes. In addition to deals on Ontario to Louisville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Louisville?

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

  • Can I find deals for business class flights from Ontario to Louisville?

    Yes. Cheapflights offers flight deals from Ontario to Louisville 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 Ontario to Louisville that allow pets onboard?

    Many airlines flying from Ontario to Louisville 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 Ontario to Louisville?

    Yes, you can often find last-minute deals on Ontario to Louisville 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 Ontario to Louisville flight deals updated?

    The Ontario to Louisville flight deals you see on this page were last updated on 5/20.

See more FAQs

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Top 4 airlines flying from Ontario to Louisville

Discover the top 4 airlines that operate flights from Ontario to Louisville. 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 2,663,308 searches. Data last updated May 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$97Average$148FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
DeltaCheapest$319Average$486FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$364Average$492FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$367Average$505FlexibilityNo cancel feeOn-time71%
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Search flights from Ontario to Louisville by cabin class

Find flights from Ontario to Louisville, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Weekly flight availability from Ontario to Louisville

Explore weekly flight availability from Ontario to Louisville. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 20, 2024.
Sunday0daily flights
Monday1daily flight
Tuesday1daily flight
Wednesday1daily flight
Thursday1daily flight
Friday1daily flight
Saturday0daily flights

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Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to Louisville?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Louisville from Ontario today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Ontario to Louisville?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Ontario to Louisville for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Ontario to Louisville with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ontario to Louisville, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Ontario to Louisville become cheaper?

Yes! Start tracking prices for Ontario to Louisville flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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