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Uncover the best deals on Pittsburgh to St Louis flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest PIT - STL Flights
Useful information for finding best airline tickets from Pittsburgh International to Lambert St Louis International on your next trip.
Cheapest Round Trip Flight
$168
United Airlines
• 1 stop
• 3h 33m
Apr 09 – Apr 24
The cheapest round trip flight from Pittsburgh to St Louis (PIT-STL-PIT) is currently $168
Cheapest Direct Flight
$314
Southwest Airlines
• nonstop
• 2h 20m
Sep 23
The cheapest nonstop flight from Pittsburgh to St Louis (PIT-STL) is currently $314
Fastest Flight
2h 20m
The fastest nonstop flight from Pittsburgh to St Louis (PIT-STL) takes 2h 20m
Top Airlines Flying from Pittsburgh to St Louis
Latest Flight Deals from Pittsburgh (PIT) to St Louis (STL)
Compare and book low fare round-trip air tickets from Pittsburgh to St Louis. Ideal for travelers with confirmed return itineraries.
Apr 09 - Apr 24, Economy
Pittsburgh → St Louis
3h 33m
8:50 AM - 2:18 PM • 1 stop
Pittsburgh → St Louis
6h 46m
8:00 AM - 1:09 PM • 1 stop
United Airlines
Apr 09 - Apr 24, Economy
Pittsburgh → St Louis
6h 45m
3:30 PM - 8:40 PM • 1 stop
Pittsburgh → St Louis
5h 25m
5:50 AM - 10:05 AM • 1 stop
Southwest Airlines
Apr 09 - Apr 24, Economy
Pittsburgh → St Louis
20h
12:10 PM - 11:10 PM • 1 stop
Pittsburgh → St Louis
9h 5m
10:30 AM - 5:15 PM • 1 stop
Southwest Airlines
Apr 09 - Apr 24, Economy
Pittsburgh → St Louis
5h 45m
2:05 PM - 4:50 PM • 1 stop
Pittsburgh → St Louis
5h 53m
10:45 AM - 10:38 PM • 1 stop
Delta Airlines
Apr 09 - Apr 24, Economy
Pittsburgh → St Louis
12h 5m
8:59 AM - 8:06 PM • 1 stop
Pittsburgh → St Louis
6h 53m
5:51 AM - 11:04 AM • 1 stop
American Airlines
Flying to St Louis soon? We've surfaced some of the most affordable last-minute flights from Pittsburgh to St Louis, ideal for urgent plans or spontaneous trips.
Sep 23 - Sep 30, Economy
Pittsburgh → St Louis
10h 40m
6:00 AM - 11:40 AM • 1 stop
Pittsburgh → St Louis
5h 25m
10:45 AM - 3:10 PM • 1 stop
Southwest Airlines
Sep 23 - Sep 30, Economy
Pittsburgh → St Louis
8h 35m
12:10 PM - 4:25 PM • 1 stop
Pittsburgh → St Louis
5h 50m
4:45 PM - 9:35 PM • 1 stop
Southwest Airlines
Sep 23 - Sep 30, Economy
Pittsburgh → St Louis
7h 9m
6:00 AM - 9:29 AM • 1 stop
Pittsburgh → St Louis
6h 51m
7:21 AM - 12:32 PM • 1 stop
American Airlines
Sep 23 - Sep 30, Economy
Pittsburgh → St Louis
10h 3m
8:00 AM - 1:03 PM • 1 stop
Pittsburgh → St Louis
6h 41m
8:43 AM - 1:44 PM • 1 stop
American Airlines
Sep 23 - Sep 30, Economy
Pittsburgh → St Louis
8h 30m
6:19 AM - 10:29 AM • 1 stop
Pittsburgh → St Louis
7h 18m
1:25 PM - 7:03 PM • 1 stop
American Airlines
Looking for the fastest way to St Louis? These direct flight options from PIT to STL offer both convenience and value—no layovers, just straight to your destination.
Sep 23 - Sep 30, Economy
Pittsburgh → St Louis
2h 20m
7:20 PM - 8:00 PM • nonstop
Pittsburgh → St Louis
2h 20m
6:50 PM - 9:30 PM • nonstop
Southwest Airlines
Sep 23 - Sep 30, Economy
Pittsburgh → St Louis
2h 20m
6:40 AM - 7:20 AM • nonstop
Pittsburgh → St Louis
2h 20m
10:25 AM - 1:05 PM • nonstop
Southwest Airlines
Apr 09 - Apr 24, Economy
Pittsburgh → St Louis
2h 25m
8:20 PM - 9:05 PM • nonstop
Pittsburgh → St Louis
2h 15m
10:30 AM - 1:05 PM • nonstop
Southwest Airlines
FAQs on Pittsburgh to St Louis Flights
What are the airports in Pittsburgh?
PIT
What’s the most popular airline flying from PIT to STL?
The most popular airline flying from Pittsburgh to St Louis are
Can I fly from PIT to STL non-stop?
Yes, you can fly PIT to STL non-stop on
Which airlines fly nonstop between Pittsburgh and St Louis?
The non-stop flights between Pittsburgh and St Louis are .
What’s the earliest departure time from PIT to STL Airport?
The earliest flight leaves PIT at 6:00 am and lands in STL - Lambert St Louis International
What are the airports in St Louis?
STL
Can I make changes to my Pittsburgh to St Louis flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from PIT to STL?
Read the fare rules of the Pittsburgh to St Louis air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Pittsburgh and St Louis?
operate flights between Pittsburgh and St Louis
How long does a flight from Pittsburgh to St Louis take?
It takes approximately 2 hour to fly non-stop from PIT to STL, which is 553.72 miles by air.
Which airlines provide the cheapest flights from Pittsburgh (PIT) to St Louis (STL) ?
In the past couple of days, the cheapest tickets to STL from PIT were found on DL : USD 598
Do I need a passport to fly between PIT and STL?
No
What’s the latest departure time from PIT to STL ?
The last flight leaves PIT at 8:20 pm
Pittsburgh (PIT) to St Louis (STL): Airport Information
| Origin Airport | Pittsburgh International , Pittsburgh, US |
| Destination Airport | Lambert St Louis International , St Louis, US |
| Distance | 554 miles |
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