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Cheap flights from Pittsburgh to St. Louis from $75

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pittsburgh to St. Louis departing on 1/12. 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 Pittsburgh to St. Louis

Cheap round-trip flights

These are some of the best round-trip flight deals from Pittsburgh to St. Louis 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 Pittsburgh to St. Louis.

Cheap last minute flights

Planning a quick getaway from Pittsburgh to St. Louis? 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 St. Louis, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Pittsburgh to St. Louis

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

All round-trip flight deals to St. Louis

The cheapest plane tickets to St. Louis found on KAYAK recently.
6:59 am - 4:21 pmPIT-STL
10h 22m1 stop
5:45 am - 4:33 pmSTL-PIT
9h 48m1 stop
$263American Airlines
Find Deal
Tue, Dec 17 - Tue, Dec 24
7:08 am - 2:07 pmPIT-STL
7h 59m1 stop
7:20 am - 2:46 pmSTL-PIT
6h 26m1 stop
$268American Airlines
Find Deal
Tue, Jan 14 - Fri, Jan 17
7:35 am - 11:47 amPIT-STL
5h 12m1 stop
6:30 am - 1:25 pmSTL-PIT
5h 55m1 stop
$274Delta
Find Deal
Thu, Jan 9 - Mon, Jan 13
9:15 am - 10:15 amPIT-STL
2h 00mnonstop
6:05 pm - 8:40 pmSTL-PIT
1h 35mnonstop
$284Southwest
Find Deal
Fri, Jan 10 - Mon, Jan 13
9:15 am - 10:15 amPIT-STL
2h 00mnonstop
6:50 am - 12:15 pmSTL-PIT
4h 25m1 stop
$293Southwest
Find Deal
Fri, Jan 10 - Mon, Jan 13
6:00 am - 11:26 amPIT-STL
6h 26m1 stop
5:36 pm - 11:37 pmSTL-PIT
5h 01m1 stop
$295United Airlines
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Sun, Feb 16 - Mon, Feb 17
7:08 pm - 3:21 pmPIT-STL
21h 13m1 stop
4:26 pm - 1:12 amSTL-PIT
7h 46m1 stop
$304Spirit Airlines
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Fri, Dec 6 - Sun, Dec 8
6:00 am - 3:21 pmPIT-STL
10h 21m1 stop
4:26 pm - 1:12 amSTL-PIT
7h 46m1 stop
$315Spirit Airlines
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Thu, Dec 5 - Sun, Dec 8
6:00 am - 12:03 pmPIT-STL
7h 03m1 stop
6:30 am - 1:25 pmSTL-PIT
5h 55m1 stop
$321Delta
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Sun, Dec 8 - Sat, Dec 14
7:10 am - 10:27 amPIT-STL
4h 17m1 stop
5:40 pm - 11:36 pmSTL-PIT
4h 56m1 stop
$370United Airlines
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Thu, Dec 5 - Thu, Dec 5
4:41 pm - 9:06 amPIT-STL
17h 25m1 stop
$75Frontier
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Sun, Jan 12
6:00 am - 3:21 pmPIT-STL
10h 21m1 stop
$124Spirit Airlines
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Tue, Dec 17
6:00 am - 9:22 amPIT-STL
4h 22m1 stop
$136Delta
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Wed, Dec 18
9:15 am - 10:15 amPIT-STL
2h 00mnonstop
$137Southwest
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Tue, Jan 21
6:30 am - 9:36 amPIT-STL
4h 06m1 stop
$146Delta
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Sun, Jan 19
1:35 pm - 2:30 pmPIT-STL
1h 55mnonstop
$147Southwest
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Sun, Jan 12
5:59 pm - 11:37 pmPIT-STL
6h 38m1 stop
$150Delta
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Tue, Feb 18
6:19 am - 9:36 amPIT-STL
4h 17m1 stop
$164American Airlines
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Fri, Dec 20
7:00 am - 12:20 pmPIT-STL
6h 20m1 stop
$199United Airlines
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Sun, May 18
10:44 am - 9:45 pmPIT-STL
12h 01m2 stops
$202United Airlines
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Wed, Jan 22
12:37 pm - 12:06 amPIT-STL
12h 29m1 stop
5:21 pm - 1:27 amSTL-PIT
7h 06m1 stop
Sun, Nov 24 - Tue, Nov 26
6:17 am - 4:26 pmPIT-STL
11h 09m1 stop
5:21 pm - 1:27 amSTL-PIT
7h 06m1 stop
$495Spirit Airlines
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Sat, Nov 23 - Sun, Nov 24
6:17 am - 4:26 pmPIT-STL
11h 09m1 stop
4:33 pm - 5:30 pmSTL-PIT
23h 57m2 stops
Sun, Nov 24 - Tue, Nov 26
6:17 am - 4:26 pmPIT-STL
11h 09m1 stop
5:21 pm - 6:01 pmSTL-PIT
23h 40m2 stops
$560Spirit Airlines
Find Deal
Sat, Nov 23 - Sun, Nov 24
8:06 pm - 4:26 pmPIT-STL
21h 20m1 stop
5:21 pm - 1:27 amSTL-PIT
7h 06m1 stop
$579Spirit Airlines
Find Deal
Fri, Nov 22 - Sun, Nov 24
7:00 am - 12:09 pmPIT-STL
6h 09m1 stop
6:30 am - 12:09 pmSTL-PIT
4h 39m1 stop
$778American Airlines
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Fri, Nov 22 - Wed, Nov 27
12:45 pm - 1:30 pmPIT-STL
1h 45mnonstop
5:35 am - 1:25 pmSTL-PIT
6h 50m1 stop
$779Southwest
Find Deal
Fri, Nov 22 - Sun, Nov 24
10:55 am - 3:39 pmPIT-STL
5h 44m1 stop
12:00 pm - 11:09 pmSTL-PIT
10h 09m2 stops
$874United Airlines
Find Deal
Fri, Nov 22 - Wed, Nov 27
3:00 pm - 11:28 pmPIT-STL
9h 28m2 stops
10:10 am - 8:38 pmSTL-PIT
9h 28m2 stops
$1,314United Airlines
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Sat, Nov 23 - Sun, Nov 24
9:00 am - 11:57 pmPIT-STL
15h 57m2 stops
2:24 pm - 5:49 pmSTL-PIT
26h 25m2 stops
$1,387Alaska Airlines
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Fri, Nov 22 - Wed, Nov 27
9:15 am - 10:15 amPIT-STL
2h 00mnonstop
6:05 pm - 8:40 pmSTL-PIT
1h 35mnonstop
$284Southwest
Find Deal
Fri, Jan 10 - Mon, Jan 13
10:20 am - 11:10 amPIT-STL
1h 50mnonstop
1:40 pm - 4:15 pmSTL-PIT
1h 35mnonstop
$330Southwest
Find Deal
Fri, Apr 4 - Sun, Apr 6
10:55 am - 11:45 amPIT-STL
1h 50mnonstop
12:10 pm - 2:45 pmSTL-PIT
1h 35mnonstop
$405Southwest
Find Deal
Mon, Dec 30 - Sun, Jan 5
10:10 am - 11:00 amPIT-STL
1h 50mnonstop
2:35 pm - 5:10 pmSTL-PIT
1h 35mnonstop
$449Southwest
Find Deal
Thu, Dec 5 - Sun, Dec 8
1:10 pm - 2:00 pmPIT-STL
1h 50mnonstop
12:10 pm - 2:45 pmSTL-PIT
1h 35mnonstop
$545Southwest
Find Deal
Sat, Dec 28 - Sun, Dec 29
10:55 am - 11:45 amPIT-STL
1h 50mnonstop
2:35 pm - 5:10 pmSTL-PIT
1h 35mnonstop
$566Southwest
Find Deal
Sun, Dec 22 - Sat, Dec 28
10:10 am - 11:00 amPIT-STL
1h 50mnonstop
2:35 pm - 5:10 pmSTL-PIT
1h 35mnonstop
$569Southwest
Find Deal
Wed, Dec 4 - Sun, Dec 8
10:55 am - 11:45 amPIT-STL
1h 50mnonstop
12:10 pm - 2:45 pmSTL-PIT
1h 35mnonstop
$728Southwest
Find Deal
Fri, Dec 20 - Fri, Dec 27

American Airlines flights from Pittsburgh to St. Louis

Our best American Airlines deals on Pittsburgh to St. Louis flight tickets
American Airlines
Dec 17
PIT6:59 amPittsburgh
10h 22m
1 stop
STL4:21 pmLambert-St Louis
Dec 24
STL5:45 amLambert-St Louis
9h 48m
1 stop
PIT4:33 pmPittsburgh
American Airlines
Jan 14
PIT7:08 amPittsburgh
7h 59m
1 stop
STL2:07 pmLambert-St Louis
Jan 17
STL7:20 amLambert-St Louis
6h 26m
1 stop
PIT2:46 pmPittsburgh
American Airlines
Dec 13
PIT6:59 amPittsburgh
5h 12m
1 stop
STL11:11 amLambert-St Louis
Dec 14
STL7:17 amLambert-St Louis
4h 59m
1 stop
PIT1:16 pmPittsburgh

Delta flights from Pittsburgh to St. Louis

Our best Delta deals on Pittsburgh to St. Louis flight tickets
Delta
Jan 9
PIT7:35 amPittsburgh
5h 12m
1 stop
STL11:47 amLambert-St Louis
Jan 13
STL6:30 amLambert-St Louis
5h 55m
1 stop
PIT1:25 pmPittsburgh
Delta
Dec 8
PIT6:00 amPittsburgh
7h 03m
1 stop
STL12:03 pmLambert-St Louis
Dec 14
STL6:30 amLambert-St Louis
5h 55m
1 stop
PIT1:25 pmPittsburgh
Delta
Feb 16
PIT6:05 pmPittsburgh
4h 44m
1 stop
STL9:49 pmLambert-St Louis
Feb 17
STL5:50 pmLambert-St Louis
3h 53m
1 stop
PIT10:43 pmPittsburgh

See travel insights to St. Louis from

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

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 St. Louis?

In general, May is the cheapest month to fly from Pittsburgh to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $320. The month of April is another great option to travel to St. Louis, with average flight prices from Pittsburgh averaging around $330.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Monday when prices can be found for as low as $336. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $382. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Pittsburgh in the evening is the least expensive time of day to depart. momondo users have found prices as low as $327 when looking at flights departing in the evening. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $383 per ticket.

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

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

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

The best time to book a flight to St. Louis from Pittsburgh is 32 days out, which is when prices tend to be around $354. In the past 72 hours, momondo users found flights from Pittsburgh to St. Louis for as low as $176.

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

There are 1 cabin classes available to choose from on Pittsburgh to Lambert-St Louis 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 Pittsburgh to St. Louis flights?

You could potentially save up to 45% on your flight if you consider stops on a Pittsburgh to St. Louis flight.

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

As of November 2024, prices for Pittsburgh to St. Louis flights are approximately 26% more expensive when compared to flights at the same time last year.

When to book flights from Pittsburgh to St. Louis

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

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

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

Best Price Found

$75

Fastest flight time

1h 45m

Direct flights

Every day

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Pittsburgh in the past 72 hours is $75. The best round-trip flight deal from Pittsburgh to St. Louis found on momondo in the last 72 hours is $263.
The fastest flight from Pittsburgh to St. Louis takes 1h 45m
Direct flights go from Pittsburgh to St. Louis every day.
There is 1 airport near St. Louis: Lambert-St Louis (STL)

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

    The straight-line distance from Pittsburgh to Lambert-St Louis is 557.2 mi. Flights usually cover this in 1h 45m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Pittsburgh Airport to Lambert-St Louis Airport refresh daily.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Pittsburgh Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents you'll need for your trip to Lambert-St Louis 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 Lambert-St Louis 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 Pittsburgh to St. Louis?

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


Best airlines flying from Pittsburgh to St. Louis

Compare and see reviews for airlines that fly from Pittsburgh to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $149Free CancellationRating
6.3
8,169 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $201Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $246Free CancellationRating
8.0
8,755 reviews
Search Delta flights
SouthwestPriceFrom $254Free CancellationRating
8.1
5,005 reviews
Search Southwest flights
United AirlinesPriceFrom $287Free CancellationRating
7.4
9,172 reviews
Search United Airlines flights
  • Southwest Flights From Pittsburgh to St. Louis

    The lowest priced Southwest flight from Pittsburgh to St. Louis from the last 72 hours was $254. Generally, Southwest has 4 flights on this route every week with an average price of $356. Southwest is rated 8.1/10 by our users.


Why use momondo?

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

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

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

Flights from Pittsburgh to St. Louis 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 Pittsburgh to St. Louis?

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 St. Louis from Pittsburgh.

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

If you are not ready to book a flight from Pittsburgh to St. Louis now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. Louis and let you know when they change.


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