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Cheap flights from Pittsburgh to St. Louis from $66

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 5/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Mon 4/29
Mon 5/6

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Easily compare round-trip flights from Pittsburgh to St. Louis

Below you can see the best fares for your round-trip flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Pittsburgh to St. Louis by changing tabs
Frontier
May 7
PIT1:41 pmPittsburgh
21h 06m
1 stop
STL9:47 amLambert-St Louis
May 8
STL8:04 pmLambert-St Louis
15h 37m
1 stop
PIT12:41 pmPittsburgh
Multiple Airlines
May 10
PIT9:17 pmPittsburgh
14h 11m
1 stop
STL10:28 amLambert-St Louis
May 15
STL8:04 pmLambert-St Louis
22h 56m
1 stop
PIT8:00 pmPittsburgh
Spirit Airlines
May 17
PIT9:17 pmPittsburgh
14h 11m
1 stop
STL10:28 amLambert-St Louis
May 19
STL7:30 pmLambert-St Louis
28h 29m
1 stop
PIT12:59 amPittsburgh
American Airlines
May 26
PIT1:30 pmPittsburgh
9h 17m
1 stop
STL9:47 pmLambert-St Louis
May 27
STL5:55 amLambert-St Louis
5h 45m
1 stop
PIT12:40 pmPittsburgh
Frontier
May 16
PIT9:00 pmPittsburgh
13h 36m
1 stop
STL9:36 amLambert-St Louis
May 18
STL8:04 pmLambert-St Louis
22h 54m
1 stop
PIT7:58 pmPittsburgh
Frontier
May 19
PIT8:58 pmPittsburgh
13h 38m
1 stop
STL9:36 amLambert-St Louis
May 22
STL8:47 amLambert-St Louis
8h 39m
1 stop
PIT6:26 pmPittsburgh

Find the cheapest one-way flights from Pittsburgh to St. Louis

If you're looking for one-way flights from Pittsburgh to St. Louis, view some of our deals below provided by American Airlines, Frontier and Spirit Airlines
Frontier
May 28
PIT9:43 pmPittsburgh
12h 53m
1 stop
STL9:36 amLambert-St Louis
Spirit Airlines
May 17
PIT9:17 pmPittsburgh
14h 11m
1 stop
STL10:28 amLambert-St Louis
Multiple Airlines
May 28
PIT7:41 pmPittsburgh
20h 09m
3 stops
STL2:50 pmLambert-St Louis

Search last-minute flights to St. Louis from Pittsburgh

Find and compare round-trip flight prices for your last-minute flight from Pittsburgh to St. Louis
Frontier
May 7
PIT1:41 pmPittsburgh
21h 06m
1 stop
STL9:47 amLambert-St Louis
May 8
STL8:04 pmLambert-St Louis
15h 37m
1 stop
PIT12:41 pmPittsburgh
Spirit Airlines
May 3
PIT9:04 pmPittsburgh
14h 36m
1 stop
STL10:40 amLambert-St Louis
May 5
STL7:30 pmLambert-St Louis
28h 15m
1 stop
PIT12:45 amPittsburgh
Multiple Airlines
Apr 26
PIT9:04 pmPittsburgh
14h 36m
1 stop
STL10:40 amLambert-St Louis
May 25
STL8:57 amLambert-St Louis
8h 09m
1 stop
PIT6:06 pmPittsburgh
Frontier
Apr 28
PIT12:36 pmPittsburgh
22h 11m
1 stop
STL9:47 amLambert-St Louis
May 4
STL8:04 pmLambert-St Louis
14h 32m
1 stop
PIT11:36 amPittsburgh
Multiple Airlines
Apr 28
PIT12:36 pmPittsburgh
22h 11m
1 stop
STL9:47 amLambert-St Louis
May 5
STL7:30 pmLambert-St Louis
28h 15m
1 stop
PIT12:45 amPittsburgh
Spirit Airlines
May 3
PIT9:04 pmPittsburgh
14h 36m
1 stop
STL10:40 amLambert-St Louis
May 5
STL7:30 pmLambert-St Louis
23h 50m
2 stops
PIT8:20 pmPittsburgh

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 $147Free CancellationRating
6.4
8,754 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $226Free CancellationRating
7.3
14,898 reviews
Search American Airlines flights
DeltaPriceFrom $248Free CancellationRating
8.0
11,004 reviews
Search Delta flights
United AirlinesPriceFrom $286Free CancellationRating
7.4
11,272 reviews
Search United Airlines flights

American Airlines flights from Pittsburgh to St. Louis

Our best American Airlines deals on Pittsburgh to St. Louis flight tickets
American Airlines
May 26
PIT1:30 pmPittsburgh
9h 17m
1 stop
STL9:47 pmLambert-St Louis
May 27
STL5:55 amLambert-St Louis
5h 45m
1 stop
PIT12:40 pmPittsburgh
American Airlines
Jun 21
PIT8:19 amPittsburgh
4h 57m
1 stop
STL12:16 pmLambert-St Louis
Jun 25
STL6:00 amLambert-St Louis
8h 16m
1 stop
PIT3:16 pmPittsburgh
American Airlines
May 25
PIT8:37 amPittsburgh
8h 40m
1 stop
STL4:17 pmLambert-St Louis
May 27
STL4:02 pmLambert-St Louis
6h 23m
1 stop
PIT11:25 pmPittsburgh

Spirit Airlines flights from Pittsburgh to St. Louis

Our best Spirit Airlines deals on Pittsburgh to St. Louis flight tickets
Spirit Airlines
May 17
PIT9:17 pmPittsburgh
14h 11m
1 stop
STL10:28 amLambert-St Louis
May 19
STL7:30 pmLambert-St Louis
28h 29m
1 stop
PIT12:59 amPittsburgh
Spirit Airlines
May 17
PIT9:17 pmPittsburgh
14h 11m
1 stop
STL10:28 amLambert-St Louis
May 19
STL7:30 pmLambert-St Louis
28h 29m
1 stop
PIT12:59 amPittsburgh
Spirit Airlines
May 10
PIT9:17 pmPittsburgh
14h 11m
1 stop
STL10:28 amLambert-St Louis
May 12
STL7:30 pmLambert-St Louis
28h 29m
1 stop
PIT12:59 amPittsburgh

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 from Pittsburgh to St. Louis?

April. The cheapest time of year to fly to St. Louis from Pittsburgh is April. Most expensive is February

What is the cheapest day to depart Pittsburgh for St. Louis?

Tuesday. The cheapest day of the week is typically Tuesday. The most expensive is typically Friday

When is the cheapest time to fly from Pittsburgh to St. Louis?

In the evening. Pittsburgh to St. Louis flights are approximately 30% more expensive in the afternoon than in the evening

What is the cheapest airline that flies to St. Louis from Pittsburgh?

Spirit Airlines. American Airlines, Delta, and Spirit Airlines are the most popular carriers operating from Pittsburgh to St. Louis

What is the cheapest Pittsburgh to St. Louis flight route?

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

How far in advance should you book Pittsburgh to St. Louis flights?

44 days before. The cheapest time to buy a flight from Pittsburgh to St. Louis is approximately 44 days to departure

How many flights depart from Pittsburgh to St. Louis on average per day?

The number of flights available between Pittsburgh and St. Louis is 1 per day as of April 2024. The most frequent departure time is 9:00AM, with 100% of daily flights leaving at noon.

How many flights depart from Pittsburgh to St. Louis on average per week?

As of April 2024, there are 8 flights per week flying from Pittsburgh to St. Louis. The most common day of the week flights depart is Sunday, with 25% of flights taking off on this day.

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

$66

Fastest flight time

4h 36m

Direct flights

None

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Pittsburgh in the past 72 hours is $66. The best round-trip flight deal from Pittsburgh to St. Louis found on momondo in the last 72 hours is $108.
The fastest flight from Pittsburgh to St. Louis takes 4h 36m
There are no direct flights from Pittsburgh to St. Louis. Popular non-direct route for this connection is Pittsburgh Airport - Lambert-St Louis Airport.
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 4h 36m, 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.


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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