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Cheap flights from Pittsburgh to St. Louis (PIT - STL) from $80

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 7/27. 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.
PIT — STL
Jun 8 — Jun 151
From?
To?
Sat 6/8
Sat 6/15
1 adult, Economy
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The best prices from Pittsburgh to Lambert-St Louis are usually found in December or September, booked 83 days in advance, depart on a Tuesday or Thursday and return on a Monday

Cheap flight deals from Pittsburgh to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Pittsburgh (PIT) to St. Louis (STL). 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 June 3, 2024.

Popular in

May

Cheapest in

December

Round-trip from

$319

One-way from

$80
High demand for flights, 22% potential price rise
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Best time to find cheap flights, 17% potential price drop
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From Pittsburgh to Lambert-St Louis
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One-way flight from Pittsburgh to Lambert-St Louis
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What is the cheapest day to fly round-trip from Pittsburgh to St. Louis?

Saturday flights are generally found to be more expensive for flights from Pittsburgh to St. Louis. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to St. Louis.

How far in advance should I book a flight from Pittsburgh to St. Louis?

To save on the cost of your flight from Pittsburgh to St. Louis, book at least 53 days before your planned departure. Booking around this time can save you about 114% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $404 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $465.

What is the cheapest month to fly from Pittsburgh to St. Louis?

Flights from Pittsburgh to St. Louis lean towards being more expensive in May. Prices are generally better when you fly from Pittsburgh to St. Louis in December, with the cheapest ticket starting at $232.

What is the cheapest time of day to fly from PIT to STL?

A simple way to save on the total cost of your ticket is to fly from Pittsburgh to St. Louis in the evening. If you’re flexible enough to do this you can expect to save up to 28% on your trip compared to booking a flight at noon.

Cheap Frontier flights from Pittsburgh to St. Louis

Explore cheap flight options specifically provided by Frontier for the route between Pittsburgh and St. Louis. 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 3, 2024.
Take a look at some of the lowest-priced Frontier flights heading from Pittsburgh to St. Louis. It's recommended that users confirm their flight details before booking.
Thu 7/117:15 pmPIT - STL
1 stop15h 10mFrontier
Mon 7/159:32 pmSTL - PIT
1 stop8h 43mFrontier
Deal found 6/2$186
Thu 7/410:23 pmPIT - STL
1 stop12h 02mFrontier
Mon 7/87:51 pmSTL - PIT
1 stop14h 16mFrontier
Deal found 6/2$204
Sat 8/107:55 amPIT - STL
1 stop7h 24mFrontier
Mon 8/129:32 pmSTL - PIT
1 stop8h 51mFrontier
Deal found 6/2$205

Cheap United Airlines flights from Pittsburgh to St. Louis

Explore cheap flight options specifically provided by United Airlines for the route between Pittsburgh and St. Louis. 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 3, 2024.
Take a gander at the lowest prices we've found on United Airlines flights from Pittsburgh to St. Louis. Check back soon if you're not seeing flights that suit your needs.
Tue 10/88:05 pmPIT - STL
2 stops15h 02mUnited Airlines
Sun 10/136:02 amSTL - PIT
1 stop5h 06mUnited Airlines
Deal found 6/2$441
Fri 6/216:10 amPIT - STL
2 stops7h 03mUnited Airlines
Fri 6/285:30 pmSTL - PIT
1 stop5h 14mUnited Airlines
Deal found 6/2$661
Mon 6/175:56 pmPIT - STL
1 stop4h 51mUnited Airlines
Tue 6/183:10 pmSTL - PIT
2 stops7h 05mUnited Airlines
Deal found 6/2$680

Cheap Pittsburgh to St. Louis flights in June & July 2024

Find cheap flight options from Pittsburgh to St. Louis 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 3, 2024.
The lowest fares we've come across on flights traveling from Pittsburgh to St. Louis in June and July 2024. More deals are always being added, so be sure to check back regularly.
Thu 6/610:38 pmPIT - STL
1 stop12h 02mMultiple Airlines
Sun 6/96:55 pmSTL - PIT
1 stop26h 16mMultiple Airlines
Deal found 6/2$235
Mon 6/171:52 pmPIT - STL
1 stop22h 05mSpirit Airlines
Tue 6/183:23 pmSTL - PIT
1 stop9h 11mSpirit Airlines
Deal found 6/2$246
Fri 6/285:07 amPIT - STL
1 stop4h 26mAmerican Airlines
Mon 7/16:00 amSTL - PIT
1 stop8h 16mAmerican Airlines
Deal found 6/2$266
Fri 6/218:00 amPIT - STL
1 stop27h 34mSpirit Airlines
Fri 6/283:07 pmSTL - PIT
1 stop13h 38mSpirit Airlines
Deal found 6/2$280
Fri 6/148:00 amPIT - STL
1 stop27h 34mSpirit Airlines
Mon 6/172:41 pmSTL - PIT
1 stop14h 09mSpirit Airlines
Deal found 6/1$297
Fri 6/2811:37 amPIT - STL
2 stops23h 57mMultiple Airlines
Mon 7/112:15 pmSTL - PIT
3 stops32h 10mMultiple Airlines
Deal found 6/2$308
Fri 6/2811:37 amPIT - STL
2 stops23h 57mSpirit Airlines
Mon 7/12:41 pmSTL - PIT
2 stops19h 04mSpirit Airlines
Deal found 6/2$348
Fri 6/2810:25 pmPIT - STL
3 stops17h 25mMultiple Airlines
Mon 7/112:15 pmSTL - PIT
3 stops32h 10mMultiple Airlines
Deal found 6/2$356
Fri 6/2811:37 amPIT - STL
2 stops23h 57mSpirit Airlines
Mon 7/12:41 pmSTL - PIT
1 stop14h 09mSpirit Airlines
Deal found 6/2$362

Pittsburgh to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Pittsburgh and St. Louis 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 3, 2024.
The lowest fares we've come across on flights traveling from Pittsburgh to St. Louis in June and July 2024. More deals are always being added, so be sure to check back regularly.
Thu 7/185:48 amPIT - STL
1 stop15h 11mSpirit Airlines
Tue 7/2310:11 amSTL - PIT
1 stop10h 05mSpirit Airlines
Deal found 6/2$163
Thu 7/117:15 pmPIT - STL
1 stop15h 10mFrontier
Mon 7/159:32 pmSTL - PIT
1 stop8h 43mFrontier
Deal found 6/2$186
Thu 7/410:23 pmPIT - STL
1 stop12h 02mFrontier
Mon 7/87:51 pmSTL - PIT
1 stop14h 16mFrontier
Deal found 6/2$204
Sat 8/107:55 amPIT - STL
1 stop7h 24mFrontier
Mon 8/129:32 pmSTL - PIT
1 stop8h 51mFrontier
Deal found 6/2$205
Thu 7/185:48 amPIT - STL
1 stop15h 11mSpirit Airlines
Tue 7/2310:11 amSTL - PIT
2 stops19h 32mSpirit Airlines
Deal found 6/2$212
Thu 7/185:48 amPIT - STL
1 stop15h 11mSpirit Airlines
Tue 7/2310:11 amSTL - PIT
3 stops23h 04mSpirit Airlines
Deal found 6/2$214
Thu 6/610:38 pmPIT - STL
1 stop12h 02mMultiple Airlines
Sun 6/96:55 pmSTL - PIT
1 stop26h 16mMultiple Airlines
Deal found 6/2$235
Mon 6/171:52 pmPIT - STL
1 stop22h 05mSpirit Airlines
Tue 6/183:23 pmSTL - PIT
1 stop9h 11mSpirit Airlines
Deal found 6/2$246
Fri 6/285:07 amPIT - STL
1 stop4h 26mAmerican Airlines
Mon 7/16:00 amSTL - PIT
1 stop8h 16mAmerican Airlines
Deal found 6/2$266

One-way flights to St. Louis from Pittsburgh

Search for one-way flight options from Pittsburgh to St. Louis. 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 3, 2024.
Some of the best available deals we've found on one-way flights from Pittsburgh to St. Louis. Users in need of a round-trip flight from Pittsburgh to St. Louis instead should update the search form at the top of page.
Sat 7/277:55 amPIT - STL
1 stop7h 24mFrontier
Deal found 6/2$80
Tue 7/96:40 amPIT - STL
1 stop8h 43mSpirit Airlines
Deal found 6/3$92
Wed 6/197:29 pmPIT - STL
1 stop24h 53mSpirit Airlines
Deal found 6/2$102
Wed 6/1910:25 pmPIT - STL
2 stops21h 57mSpirit Airlines
Deal found 6/2$129
Sat 10/511:40 amPIT - STL
1 stop6h 44mAmerican Airlines
Deal found 6/2$143
Tue 7/95:23 pmPIT - STL
3 stops43h 22mMultiple Airlines
Deal found 6/3$160
Wed 6/197:29 pmPIT - STL
3 stops42h 21mMultiple Airlines
Deal found 6/2$168
Sat 10/58:29 amPIT - STL
2 stops10h 01mSpirit Airlines
Deal found 6/2$210
Sat 10/56:37 amPIT - STL
3 stops31h 13mMultiple Airlines
Deal found 6/2$255

Find flights from Pittsburgh to St. Louis within your budget

Customize your flight search to find flights from Pittsburgh to St. Louis 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 3, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$163 - $441

Route

Depart

Return

Price

PittsburghLambert-St Louis

PIT - STL

PITSTL

Pittsburgh

Thu 7/18

1 stop15h 11m

Lambert-St Louis

Tue 7/23

1 stop10h 05m

$163

PittsburghLambert-St Louis

PIT - STL

PITSTL

Pittsburgh

Thu 7/11

1 stop15h 10m

Lambert-St Louis

Mon 7/15

1 stop8h 43m

$186

PittsburghLambert-St Louis

PIT - STL

PITSTL

Pittsburgh

Thu 7/4

1 stop12h 02m

Lambert-St Louis

Mon 7/8

1 stop14h 16m

$204

PittsburghLambert-St Louis

PIT - STL

PITSTL

Pittsburgh

Sat 8/10

1 stop7h 24m

Lambert-St Louis

Mon 8/12

1 stop8h 51m

$205

PittsburghLambert-St Louis

PIT - STL

PITSTL

Pittsburgh

Thu 7/18

1 stop15h 11m

Lambert-St Louis

Tue 7/23

2 stops19h 32m

$212

PittsburghLambert-St Louis

PIT - STL

PITSTL

Pittsburgh

Fri 6/28

1 stop4h 26m

Lambert-St Louis

Mon 7/1

1 stop8h 16m

$266

PittsburghLambert-St Louis

PIT - STL

PITSTL

Pittsburgh

Sat 8/10

1 stop3h 52m

Lambert-St Louis

Tue 8/13

1 stop3h 59m

$271

PittsburghLambert-St Louis

PIT - STL

PITSTL

Pittsburgh

Sun 6/30

1 stop10h 52m

Lambert-St Louis

Sun 7/7

3 stops23h 10m

$298

PittsburghLambert-St Louis

PIT - STL

PITSTL

Pittsburgh

Tue 10/8

2 stops15h 02m

Lambert-St Louis

Sun 10/13

1 stop5h 06m

$441

Flights are sorted by cheapest first

Deals found on 6/2

How far ahead should I book a flight from Pittsburgh to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Pittsburgh to St. Louis. Price data was last updated on May 31, 2024.
Booking 83 days in advance of your planned departure date is, on average, the best time to get cheap flights from Pittsburgh to St. Louis. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Search Deals

What is the cheapest day to fly from Pittsburgh to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Pittsburgh to St. Louis. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Pittsburgh to St. Louis flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Pittsburgh to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Pittsburgh 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.

Temperature and rainfall in St. Louis by month

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

STL

Temperature

32 - 80.6 °F

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated June 3, 2024.
Read through reviews of airlines operating flights from Pittsburgh to St. Louis, such as Frontier, United Airlines and Spirit Airlines. 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

Overall

8.0

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

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

Crew

8.6

Overall

8.0

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

United Airlines
7.4
Good
10,740 reviews
Delta
8.0
Very good
10,402 reviews
Check prices

Crew

8.6

Overall

8.0

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

American Airlines
7.3
Good
14,241 reviews
Delta
8.0
Very good
10,402 reviews
Check prices

Crew

8.6

Overall

8.0

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Spirit Airlines
6.4
Okay
8,597 reviews
Delta
8.0
Very good
10,402 reviews
Check prices

Crew

8.6

Overall

8.0

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Frontier
6.2
Okay
3,998 reviews
Delta
8.0
Very good
10,402 reviews
Check prices

Crew

8.6

Overall

8.0

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

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

  • What airports do I use to fly from Pittsburgh to St. Louis?

    You will need to book a flight from Pittsburgh to Lambert-St Louis if you want to fly from Pittsburgh to St. Louis. At least 4 different airlines have flights from Pittsburgh (PIT) to Lambert-St Louis (STL) on a regular basis. There is 1 flight to St. Louis from the Pittsburgh airport per day. If you manage to book one that is nonstop, then you can expect the flight time from PIT to STL to be around 4h 11m.

  • Can I find flights from Pittsburgh to St. Louis for under $200 on Cheapflights?

    Yes, there are multiple flights from Pittsburgh to St. Louis for under $200. The cheapest flight booked recently is on Spirit Airlines for just $163, but on average you can expect to pay $262.

  • What are the cheapest airlines flying from Pittsburgh to St. Louis round-trip?

    Spirit Airlines, at $163, was found to be the cheapest airline from Pittsburgh to St. Louis.Alternate airlines to your destination round-trip include Frontier and American Airlines. Users have found that Spirit Airlines is 50% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Pittsburgh to St. Louis one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $80. However, be on the lookout for offers from Spirit Airlines and American Airlines, as they are both options that can get you from Pittsburgh to St. Louis for a low price.

  • What does PIT to STL mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Pittsburgh Airport to Lambert-St Louis Airport flight would often be abbreviated as a PIT to STL flight.

  • Can I find deals for flights from Pittsburgh to St. Louis that include extra baggage allowance?

    The amount of baggage you can bring on your Pittsburgh to St. Louis 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 Pittsburgh to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Pittsburgh to St. Louis 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 Pittsburgh to St. Louis that include hotel bookings?

    Yes. In addition to deals on Pittsburgh to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pittsburgh to St. Louis?

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

  • Can I find deals for business class flights from Pittsburgh to St. Louis?

    Yes. Cheapflights offers flight deals from Pittsburgh to St. Louis 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 Pittsburgh to St. Louis that allow pets onboard?

    Many airlines flying from Pittsburgh to St. Louis 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 Pittsburgh to St. Louis?

    Yes, you can often find last-minute deals on Pittsburgh to St. Louis 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 Pittsburgh to St. Louis flight deals updated?

    The Pittsburgh to St. Louis flight deals you see on this page were last updated on 6/2.

  • What are the most popular airlines that fly from Pittsburgh to St. Louis?

    American Airlines, Delta and Spirit Airlines are the most popular airlines when flying from Pittsburgh to St. Louis.

  • What is the cheapest month to book a flight from Pittsburgh to St. Louis?

    Currently, September is the cheapest month in which you can book a flight from Pittsburgh to St. Louis (average of $319). Flying from Pittsburgh to St. Louis in July is currently the most expensive (average of $366). 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.

See more FAQs

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Alternative routes for Pittsburgh to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.

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Top 4 airlines flying from Pittsburgh to St. Louis

Discover the top 4 airlines that operate flights from Pittsburgh to St. Louis. 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 3, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$147Average$266FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
American AirlinesCheapest$222Average$296FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$246Average$347FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$286Average$414FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Atlanta to San Diego flights
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Rochester, New York to New York flights
New York to Lisbon flights
Houston to Boston flights
Newark Airport to London flights
New Orleans to Los Angeles flights
Boston to Philadelphia flights
Atlanta to Chicago flights
Las Vegas to Denver flights
Miami to Tampa flights
Pittsburgh to London Stansted Airport flights

Search flights from Pittsburgh to St. Louis by cabin class

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

Hourly flight availability from Pittsburgh to St. Louis

Find hourly flight availability from Pittsburgh to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 3, 2024.
1%of flight departuresEarly morningMidnight to 6 am
83%of flight departuresMorning6 am to noon
16%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Pittsburgh to St. Louis

Explore weekly flight availability from Pittsburgh to St. Louis. 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 June 3, 2024.
Sunday2daily flights
Monday1daily flight
Tuesday1daily flight
Wednesday1daily flight
Thursday1daily flight
Friday1daily flight
Saturday1daily flight

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Fly with Cheapflights

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 Pittsburgh to St. Louis?

Deals for Pittsburgh to St. Louis flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Pittsburgh to St. Louis?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to St. Louis from Pittsburgh.

Can Cheapflights find flights from Pittsburgh to St. Louis with no change fees?

Need flexible booking options for your flight to St. Louis from Pittsburgh? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Pittsburgh to St. Louis become cheaper?

Not ready to book yet? You can track prices for flights from Pittsburgh to St. Louis on Cheapflights with our Price Alert feature and get notified when better prices are available.

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