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

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 2/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PIT
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
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The best prices from Lambert-St Louis to Pittsburgh are usually found in August or July, booked 27 days in advance, depart on a Monday or Tuesday and return on a Sunday

Cheap flight deals from St. Louis to Pittsburgh

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Pittsburgh (PIT). 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 January 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$205
(FlightHub)

One-way from

$80
(FlightHub)

Popular in

January

Cheapest in

August

Average price

$464

Good round-trip deal

$375 or less
Provider with most accurate pricing for Lambert-St Louis-Pittsburgh flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Pittsburgh flights.
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From Lambert-St Louis to Pittsburgh
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One-way flight from Lambert-St Louis to Pittsburgh
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($27 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Price to beat on a round-trip flight from Lambert-St Louis to Pittsburgh.
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Find flight deals from St. Louis to Pittsburgh

Cheapest flights from St. Louis to Pittsburgh
Explore the most affordable flight options available from St. Louis to Pittsburgh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 30, 2025.

This Mytrip deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/24:00 pmSTL - PIT
1 stop16h 26mMultiple Airlines
Mon 3/39:17 pmPIT - STL
2 stops18h 25mMultiple Airlines
Deal found 1/29$160
This FlightHub deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/276:47 pmSTL - PIT
1 stop21h 22mSpirit Airlines
Mon 3/317:17 pmPIT - STL
1 stop23h 35mSpirit Airlines
Deal found 1/30$205
This Southwest deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/38:20 amSTL - PIT
Nonstop1h 35mSouthwest
Tue 3/49:15 amPIT - STL
Nonstop2h 00mSouthwest
Deal found 1/29$253
This United Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/33:32 pmSTL - PIT
1 stop4h 27mUnited Airlines
Tue 3/46:00 amPIT - STL
1 stop6h 17mUnited Airlines
Deal found 1/29$254
This Delta deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/206:43 amSTL - PIT
1 stop5h 42mDelta
Sat 2/226:30 amPIT - STL
1 stop4h 06mDelta
Deal found 1/30$259
This American Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/215:00 amSTL - PIT
1 stop9h 03mAmerican Airlines
Sun 5/255:50 amPIT - STL
1 stop4h 27mAmerican Airlines
Deal found 1/30$261
This Alaska Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/273:11 pmSTL - PIT
2 stops17h 44mAlaska Airlines
Mon 3/317:36 pmPIT - STL
2 stops14h 12mAlaska Airlines
Deal found 1/29$833

Find flights from St. Louis to Pittsburgh within your budget

Customize your flight search to find flights from St. Louis to Pittsburgh 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 2,558,603 searches. Data last updated January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisPittsburgh

STL - PIT

STLPIT

Lambert-St Louis

Thu 3/27

6:47 pm-5:09 pm

1 stop21h 22m

Pittsburgh

Mon 3/31

7:17 pm-5:52 pm

1 stop23h 35m

$205

St. LouisPittsburgh

STL - PIT

STLPIT

Lambert-St Louis

Tue 4/29

7:17 pm-8:51 am

1 stop12h 34m

Pittsburgh

Fri 5/2

6:14 pm-12:06 am

1 stop6h 52m

$208

St. LouisPittsburgh

STL - PIT

STLPIT

Lambert-St Louis

Mon 3/3

8:20 am-10:55 am

Nonstop1h 35m

Pittsburgh

Thu 3/6

10:20 am-11:10 am

Nonstop1h 50m

$253

St. LouisPittsburgh

STL - PIT

STLPIT

Lambert-St Louis

Mon 3/3

3:32 pm-8:59 pm

1 stop4h 27m

Pittsburgh

Tue 3/4

6:00 am-11:17 am

1 stop6h 17m

$254

St. LouisPittsburgh

STL - PIT

STLPIT

Lambert-St Louis

Thu 2/20

6:43 am-1:25 pm

1 stop5h 42m

Pittsburgh

Sat 2/22

6:30 am-9:36 am

1 stop4h 06m

$259

St. LouisPittsburgh

STL - PIT

STLPIT

Lambert-St Louis

Wed 5/21

5:00 am-3:03 pm

1 stop9h 03m

Pittsburgh

Sun 5/25

5:50 am-9:17 am

1 stop4h 27m

$261

St. LouisPittsburgh

STL - PIT

STLPIT

Lambert-St Louis

Mon 4/28

3:08 pm-10:52 am

2 stops18h 44m

Pittsburgh

Fri 5/2

3:52 pm-2:08 pm

2 stops23h 16m

$919

St. LouisPittsburgh

STL - PIT

STLPIT

Lambert-St Louis

Thu 2/27

4:00 pm-9:26 am

1 stop16h 26m

$80

St. LouisPittsburgh

STL - PIT

STLPIT

Lambert-St Louis

Tue 4/29

12:45 pm-3:20 pm

Nonstop1h 35m

$127

St. LouisPittsburgh

STL - PIT

STLPIT

Lambert-St Louis

Fri 2/28

12:59 pm-9:15 pm

1 stop7h 16m

$130

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Showing 1-10 of 12 results
1
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Compare providers for flights from St. Louis to Pittsburgh

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Pittsburgh in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Pittsburgh flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Pittsburgh flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Pittsburgh flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Pittsburgh flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Pittsburgh flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

Travel insights for flights from St. Louis to Pittsburgh

Get recent, data-driven insights about flights from St. Louis to Pittsburgh including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Pittsburgh. Price data was last updated on January 24, 2025.

The best time to book flights from St. Louis to Pittsburgh is 27 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from St. Louis to Pittsburgh (average of $262). Flying from St. Louis to Pittsburgh in November is currently the most expensive (average of $333). 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.

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

Find hourly flight availability from St. Louis to Pittsburgh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 30, 2025.

It’s typically best to fly out from St. Louis to Pittsburgh in the afternoon. Doing so could potentially save you 19% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in Pittsburgh by month

Plan your trip to Pittsburgh by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Pittsburgh ranges from 2.3 - 4.3 inches per month. June is typically the wettest month, when rainfall can reach 4.3 in. October is typically the driest time to visit Pittsburgh when rainfall is around 2.3 in.

Temperature in Pittsburgh by month

Plan your trip to Pittsburgh by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Pittsburgh, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

Reviews of airlines servicing Pittsburgh

Get insights into the airlines that provide service to Pittsburgh. 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 Pittsburgh. Reviews last updated January 30, 2025.
Read through reviews of airlines operating flights from St. Louis to Pittsburgh, such as Southwest, Alaska Airlines and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Entertainment

7.7

Overall

8.1

Comfort

8.1

Crew

8.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,585 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Entertainment

7.7

Overall

8.1

Comfort

8.1

Crew

8.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,688 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Entertainment

7.7

Overall

8.1

Comfort

8.1

Crew

8.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,454 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Entertainment

7.7

Overall

8.1

Comfort

8.1

Crew

8.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,913 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Entertainment

7.7

Overall

8.1

Comfort

8.1

Crew

8.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Entertainment

7.7

Overall

8.1

Comfort

8.1

Crew

8.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

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

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

    Currently priced at $205, Spirit Airlines will fly you from St. Louis to Pittsburgh and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Southwest and United Airlines - these airlines can fly you to your destination from $253 and $254, respectively. These flights start at 43% lower than the current average price 3 months from now.

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

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

  • What are the cheapest flights from St. Louis to Pittsburgh?

    The cheapest flight price from St. Louis to Pittsburgh is $289. On average you can expect to pay $436. The most popular route, (Lambert-St Louis - Pittsburgh), can usually be booked for $146.

  • Can I find deals for flights from St. Louis to Pittsburgh that include hotel bookings?

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from St. Louis to Pittsburgh (average of $262). Flying from St. Louis to Pittsburgh in November is currently the most expensive (average of $333). 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

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Monroeville
Washington
Steubenville
Belle Vernon

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Alternative routes for St. Louis to Pittsburgh

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from St. Louis to Pittsburgh

Discover the top 4 airlines that operate flights from St. Louis to Pittsburgh. 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 2,558,603 searches. Data last updated January 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$247Average$349FlexibilityNo cancel feeOn-time71%
DeltaCheapest$277Average$348FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$279Average$385FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$288Average$485FlexibilityNo cancel feeOn-time69%
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