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Cheap flights from St. Louis to Pittsburgh from $84

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Pittsburgh departing on 1/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from St. Louis to Pittsburgh

Cheap round-trip flights

These are some of the best round-trip flight deals from St. Louis to Pittsburgh that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from St. Louis to Pittsburgh.

Cheap last minute flights

Planning a quick getaway from St. Louis to Pittsburgh? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Pittsburgh, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from St. Louis to Pittsburgh

Find recent round-trip train or bus tickets from St. Louis to Pittsburgh.

All round-trip flight deals to Pittsburgh

The cheapest plane tickets to Pittsburgh found on KAYAK recently.
1:02 pm - 8:34 pmSTL-PIT
6h 32m1 stop
6:00 am - 10:47 amPIT-STL
5h 47m1 stop
$254United Airlines
Find Deal
Wed, Jan 15 - Thu, Jan 16
6:49 pm - 9:06 pmSTL-PIT
25h 17m1 stop
8:38 pm - 2:43 pmPIT-STL
19h 05m1 stop
Wed, Jan 1 - Wed, Jan 8
6:43 am - 11:20 amSTL-PIT
3h 37m1 stop
5:59 pm - 11:36 pmPIT-STL
6h 37m1 stop
$258Delta
Find Deal
Sat, Feb 1 - Tue, Feb 11
6:00 am - 2:46 pmSTL-PIT
7h 46m2 stops
8:28 am - 12:45 pmPIT-STL
5h 17m1 stop
$265American Airlines
Find Deal
Sat, Feb 1 - Sat, Feb 8
6:49 pm - 9:06 pmSTL-PIT
25h 17m1 stop
10:07 pm - 8:13 amPIT-STL
11h 06m1 stop
$283Frontier
Find Deal
Wed, Jan 1 - Sun, Jan 5
6:05 pm - 8:40 pmSTL-PIT
1h 35mnonstop
9:15 am - 10:15 amPIT-STL
2h 00mnonstop
$310Southwest
Find Deal
Wed, Jan 22 - Thu, Jan 23
7:59 am - 12:18 pmSTL-PIT
3h 19m1 stop
1:38 pm - 4:14 pmPIT-STL
3h 36m1 stop
$318American Airlines
Find Deal
Fri, Apr 25 - Sun, Apr 27
6:05 pm - 8:40 pmSTL-PIT
1h 35mnonstop
7:25 am - 2:35 pmPIT-STL
8h 10m1 stop
$319Southwest
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Wed, Jan 22 - Thu, Jan 23
6:05 pm - 8:40 pmSTL-PIT
1h 35mnonstop
9:15 am - 10:15 amPIT-STL
2h 00mnonstop
$325Southwest
Find Deal
Tue, Jan 7 - Wed, Jan 8
5:31 pm - 11:31 pmSTL-PIT
5h 00m1 stop
8:50 am - 2:48 pmPIT-STL
6h 58m1 stop
$328United Airlines
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Fri, May 16 - Sun, May 18
6:46 pm - 3:41 pmSTL-PIT
19h 55m1 stop
$84Frontier
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Wed, Jan 8
7:15 am - 3:24 pmSTL-PIT
7h 09m1 stop
$129Delta
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Wed, Feb 19
8:20 am - 10:55 amSTL-PIT
1h 35mnonstop
$141Southwest
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Tue, Feb 18
6:05 pm - 8:40 pmSTL-PIT
1h 35mnonstop
$155Southwest
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Wed, Feb 19
5:40 am - 4:50 pmSTL-PIT
10h 10m2 stops
$169American Airlines
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Tue, Jan 14
6:00 am - 4:50 pmSTL-PIT
9h 50m2 stops
$179American Airlines
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Sun, Jan 19
6:30 am - 7:04 pmSTL-PIT
11h 34m2 stops
$202United Airlines
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Wed, Jan 15
6:30 am - 6:51 pmSTL-PIT
11h 21m2 stops
$232United Airlines
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Sat, Feb 15
2:49 pm - 6:32 pmSTL-PIT
26h 43m2 stops
$307Alaska Airlines
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Thu, Jan 16
2:27 pm - 6:32 pmSTL-PIT
27h 05m3 stops
$362Alaska Airlines
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Wed, Jan 8
6:00 am - 12:03 pmSTL-PIT
5h 03m1 stop
5:59 pm - 9:42 pmPIT-STL
4h 43m1 stop
$738Delta
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Sun, Dec 22 - Sun, Dec 29
12:10 pm - 2:45 pmSTL-PIT
1h 35mnonstop
6:40 pm - 11:50 pmPIT-STL
6h 10m1 stop
$739Southwest
Find Deal
Sun, Dec 22 - Sun, Dec 29
5:27 pm - 11:44 pmSTL-PIT
5h 17m1 stop
11:00 am - 2:24 pmPIT-STL
4h 24m1 stop
$839United Airlines
Find Deal
Fri, Dec 20 - Sat, Dec 21
5:45 am - 12:10 pmSTL-PIT
5h 25m1 stop
1:53 pm - 7:14 pmPIT-STL
6h 21m1 stop
$923American Airlines
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Sat, Dec 21 - Sat, Dec 21
10:35 am - 4:48 pmSTL-PIT
5h 13m1 stop
6:10 am - 9:45 pmPIT-STL
16h 35m2 stops
$1,082United Airlines
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Sun, Dec 22 - Sun, Dec 29
5:27 pm - 11:44 pmSTL-PIT
5h 17m1 stop
2:34 pm - 9:45 pmPIT-STL
8h 11m2 stops
$1,337United Airlines
Find Deal
Fri, Dec 20 - Sat, Dec 21
10:35 am - 11:14 pmSTL-PIT
11h 39m2 stops
6:10 am - 2:24 pmPIT-STL
9h 14m2 stops
$1,616United Airlines
Find Deal
Sun, Dec 22 - Sun, Dec 29
8:00 am - 1:15 pmSTL-PIT
4h 15m1 stop
2:34 pm - 9:45 pmPIT-STL
8h 11m2 stops
$1,916United Airlines
Find Deal
Sat, Dec 21 - Sat, Dec 21
5:21 am - 9:46 pmSTL-PIT
15h 25m2 stops
9:16 am - 8:52 amPIT-STL
24h 36m2 stops
$2,097Alaska Airlines
Find Deal
Fri, Dec 20 - Sat, Dec 21
6:05 pm - 8:40 pmSTL-PIT
1h 35mnonstop
9:15 am - 10:15 amPIT-STL
2h 00mnonstop
$310Southwest
Find Deal
Wed, Jan 22 - Thu, Jan 23
6:05 pm - 8:40 pmSTL-PIT
1h 35mnonstop
9:15 am - 10:15 amPIT-STL
2h 00mnonstop
$325Southwest
Find Deal
Tue, Jan 7 - Wed, Jan 8
6:05 pm - 8:40 pmSTL-PIT
1h 35mnonstop
1:35 pm - 2:30 pmPIT-STL
1h 55mnonstop
$338Southwest
Find Deal
Wed, Jan 15 - Thu, Jan 16

American Airlines flights from St. Louis to Pittsburgh

Our best American Airlines deals on St. Louis to Pittsburgh flight tickets
American Airlines
Feb 1
STL6:00 amLambert-St Louis
7h 46m
2 stops
PIT2:46 pmPittsburgh
Feb 8
PIT8:28 amPittsburgh
5h 17m
1 stop
STL12:45 pmLambert-St Louis
American Airlines
Apr 25
STL7:59 amLambert-St Louis
3h 19m
1 stop
PIT12:18 pmPittsburgh
Apr 27
PIT1:38 pmPittsburgh
3h 36m
1 stop
STL4:14 pmLambert-St Louis
American Airlines
Dec 24
STL9:30 amLambert-St Louis
6h 01m
1 stop
PIT4:31 pmPittsburgh
Dec 25
PIT6:20 amPittsburgh
10h 20m
1 stop
STL3:40 pmLambert-St Louis

United Airlines flights from St. Louis to Pittsburgh

Our best United Airlines deals on St. Louis to Pittsburgh flight tickets
United Airlines
Jan 15
STL1:02 pmLambert-St Louis
6h 32m
1 stop
PIT8:34 pmPittsburgh
Jan 16
PIT6:00 amPittsburgh
5h 47m
1 stop
STL10:47 amLambert-St Louis
United Airlines
May 16
STL5:31 pmLambert-St Louis
5h 00m
1 stop
PIT11:31 pmPittsburgh
May 18
PIT8:50 amPittsburgh
6h 58m
1 stop
STL2:48 pmLambert-St Louis
United Airlines
Jan 7
STL11:30 amLambert-St Louis
4h 25m
1 stop
PIT4:55 pmPittsburgh
Jan 8
PIT6:15 amPittsburgh
10h 23m
2 stops
STL3:38 pmLambert-St Louis

See travel insights to Pittsburgh from

How to get the cheapest flight ticket from St. Louis to Pittsburgh

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Pittsburgh?

In general, July is the cheapest month to fly from St. Louis to Pittsburgh. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $300. The month of August is another great option to travel to Pittsburgh, with average flight prices from St. Louis averaging around $309.

What is the cheapest day to depart on your flight to Pittsburgh?

The cheapest day to depart on your flight to Pittsburgh is on a Thursday when prices can be found for as low as $337. This is often the case because there is less demand to fly during this day of the week. Flights from St. Louis to Pittsburgh on a Saturday will generally be more expensive and average around $390. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Pittsburgh?

Our data shows that the cheapest St. Louis to Pittsburgh flights are usually those with departure times in the evening. Our users have found flights to Pittsburgh in the evening for as low as $337. Flights to Pittsburgh are more costly at noon, with an average ticket price of $418. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Lambert-St Louis to Pittsburgh flight route?

Fly from Lambert-St Louis to Pittsburgh for the best Lambert-St Louis - Pittsburgh flight prices

How far in advance should I book a flight to Pittsburgh?

The ideal time to book your flight to Pittsburgh is 27 days in advance when prices tend to average $365. However, in the past 72 hours, people saw flights from St. Louis for as low as $177.

What cabin class options are available on Lambert-St Louis to Pittsburgh flights?

There are 1 cabin classes available to choose from on Lambert-St Louis to Pittsburgh flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on St. Louis to Pittsburgh flights?

You could potentially save up to 40% on your flight if you consider stops on a St. Louis to Pittsburgh flight.

How have St. Louis to Pittsburgh flight prices changed over time?

As of December 2024, prices for St. Louis to Pittsburgh flights are approximately 27% cheaper when compared to flights at the same time last year.

When to book flights from St. Louis to Pittsburgh

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Pittsburgh according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Pittsburgh (STL to PIT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Pittsburgh

Best Price Found

$84

Fastest flight time

1h 35m

Direct flights

Tue, Wed, Thu, Fri and Sat

Airports in Pittsburgh

1 airport
The best one-way flight to Pittsburgh from St. Louis in the past 72 hours is $84. The best round-trip flight deal from St. Louis to Pittsburgh found on momondo in the last 72 hours is $254.
The fastest flight from St. Louis to Pittsburgh takes 1h 35m
Direct flights go from St. Louis to Pittsburgh on Tuesday, Wednesday, Thursday, Friday and Saturday. The only airline offering direct flights is Southwest.
There is 1 airport near Pittsburgh: Pittsburgh (PIT)

  • How far is Lambert-St Louis to Pittsburgh by plane?

    The distance between Lambert-St Louis and Pittsburgh is about 557.2 mi. Typically, this will take 1h 35m by plane in normal conditions.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Pittsburgh Airport?

    Prices for flights from Lambert-St Louis Airport to Pittsburgh Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Pittsburgh Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Pittsburgh Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Pittsburgh Airport.

  • What documentation or ID do you need to fly to Pittsburgh Airport?

    The travel and health documents you'll need for your trip to Pittsburgh Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Pittsburgh Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from St. Louis to Pittsburgh?

  • What is the most popular airline from St. Louis to Pittsburgh?


Best airlines flying from St. Louis to Pittsburgh

Compare and see reviews for airlines that fly from St. Louis to Pittsburgh with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $233Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $277Free CancellationRating
8.0
8,604 reviews
Search Delta flights
United AirlinesPriceFrom $277Free CancellationRating
7.4
9,059 reviews
Search United Airlines flights
SouthwestPriceFrom $279Free CancellationRating
8.1
4,848 reviews
Search Southwest flights
  • Southwest Flights From St. Louis to Pittsburgh

    Southwest flight deals from St. Louis to Pittsburgh start from $279 round-trip. Over the 3 Southwest flights for this route in a normal week, average airfare is usually $404 round-trip - but some users have found much cheaper deals with momondo.


Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Pittsburgh?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Pittsburgh. momondo saves you time and could save you money on your trip.

Can I find flights from St. Louis to Pittsburgh with flexible booking policies on momondo?

Flights from St. Louis to Pittsburgh with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from St. Louis to Pittsburgh?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Pittsburgh from St. Louis.

I’m not ready to book a flight from St. Louis to Pittsburgh right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Pittsburgh, momondo offers a useful price alert feature which will track prices for flights to Pittsburgh from St. Louis and alert you when they change.


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