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STL - PIT

Find cheap flights from St. Louis to Pittsburgh from $63

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Pittsburgh departing on 5/22. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Mon 6/3
Mon 6/10

Search hundreds of travel sites at once for deals on flights to Pittsburgh

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Pittsburgh, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Pittsburgh, as well as popular online travel agencies
In the last 7 days travelers have searched 43,369,418 times on KAYAK, and here is why:

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Cheap flight deals from St. Louis to Pittsburgh (STL-PIT)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Pittsburgh that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
10:34 am - 6:41 pmSTL-PIT
7h 07m1 stop
10:25 pm - 5:28 pmPIT-STL
20h 03m1 stop
$139Spirit Airlines
Find Deal
Tue, Jun 4 - Wed, Jun 5
11:39 am - 11:08 pmSTL-PIT
10h 29m1 stop
10:25 pm - 9:39 amPIT-STL
12h 14m1 stop
$149Spirit Airlines
Find Deal
Sat, May 18 - Mon, May 20
8:04 pm - 8:43 pmSTL-PIT
23h 39m1 stop
10:25 pm - 2:23 pmPIT-STL
16h 58m1 stop
Mon, Jun 3 - Mon, Jun 10
6:00 am - 3:56 pmSTL-PIT
8h 56m1 stop
8:00 am - 3:32 pmPIT-STL
8h 32m1 stop
$202American Airlines
Find Deal
Tue, Aug 20 - Thu, Aug 22
11:21 am - 5:16 pmSTL-PIT
4h 55m1 stop
5:25 am - 10:34 amPIT-STL
6h 09m1 stop
Mon, Jul 8 - Sat, Jul 13
7:05 am - 5:16 pmSTL-PIT
9h 11m1 stop
6:20 am - 12:17 pmPIT-STL
6h 57m1 stop
$255American Airlines
Find Deal
Thu, Aug 15 - Sun, Aug 18
3:43 pm - 10:36 pmSTL-PIT
5h 53m1 stop
7:45 pm - 11:44 pmPIT-STL
4h 59m1 stop
$288Delta
Find Deal
Fri, Jul 26 - Mon, Jul 29
6:30 am - 1:21 pmSTL-PIT
5h 51m1 stop
6:00 am - 11:48 amPIT-STL
6h 48m1 stop
$468Delta
Find Deal
Tue, May 14 - Wed, May 15
5:30 pm - 10:23 amSTL-PIT
15h 53m1 stop
8:05 pm - 10:07 amPIT-STL
15h 02m2 stops
$522United Airlines
Find Deal
Thu, Aug 15 - Sun, Aug 18
6:30 am - 1:56 pmSTL-PIT
6h 26m2 stops
8:50 am - 2:16 pmPIT-STL
6h 26m1 stop
$722United Airlines
Find Deal
Fri, Jun 14 - Sat, Jun 15

Flights from St. Louis to Pittsburgh - Travel Insights & Trends

Get data-powered insights and trends into flights from St. Louis to Pittsburgh to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from St. Louis to Pittsburgh?

The average price of all flights from St. Louis to Pittsburgh clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from St. Louis to Pittsburgh, look for departures on Mondays and avoid leaving on a Tuesday, as it's usually the priciest day. When flying back from Pittsburgh, Tuesday is the cheapest day to fly and Friday is the most expensive.

What is the cheapest month to fly from St. Louis to Pittsburgh?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from St. Louis to Pittsburgh, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from St. Louis to Pittsburgh is September, where tickets cost $275 on average. On the other hand, the most expensive months are January and May, where the average cost of tickets is $438 and $436 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from St. Louis to Pittsburgh, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from St. Louis to Pittsburgh, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 77 days before departure.

Which airlines provide the cheapest flights from St. Louis to Pittsburgh?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, Frontier offered the best one-way deal for that route, at $63. KAYAK users also found St. Louis to Pittsburgh round-trip flights on Spirit Airlines from $139 and on American Airlines from $202.

How many flights are there between St. Louis and Pittsburgh per day?

Each day, there are between 1 and 2 nonstop flights that take off from St. Louis and land in Pittsburgh, with an average flight time of 1h 35m. The most common departure time is 4:00 pm and most flights take off in the afternoon. Each week, there are 10 flights. The most frequent day of departure is Sunday, when 20% of all weekly flights depart. The fewest flights depart on a Friday.

What’s the earliest departure time from St. Louis to Pittsburgh?

Early birds can take the earliest flight from St. Louis at 9:10 am and will be landing in Pittsburgh at 11:45 am.

What’s the latest departure time from St. Louis to Pittsburgh?

If you prefer to fly at night, the latest flight from St. Louis to Pittsburgh jets off at 9:10 pm and lands at 11:45 pm.

Good to know

Low season

March

High season

July

Cheapest flight

$63
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from St. Louis to Pittsburgh

When to book flights from St. Louis to Pittsburgh

Are your dates flexible? Find out the best times to travel from St. Louis to Pittsburgh based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Pittsburgh

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

    In the last 3 days, the lowest price for a flight from St. Louis to Pittsburgh was $63 for a one-way ticket and $139 for a round-trip.

  • Do I need a passport to fly between St. Louis and Pittsburgh?

    No

  • Which airports will I be using when flying from St. Louis to Pittsburgh?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Pittsburgh, also known as Pittsburgh.

  • Which aircraft models fly most regularly from St. Louis to Pittsburgh?

    We unfortunately don’t have that data for this specific route.

  • On which days can I fly direct from St. Louis to Pittsburgh?

    There are nonstop flights from St. Louis to Pittsburgh on a daily basis.

  • Which is the best airline for flights from St. Louis to Pittsburgh, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Pittsburgh are Delta and American Airlines. With an average price for the route of $307 and an overall rating of 8.0, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $342 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from St. Louis to Pittsburgh?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Pittsburgh.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Pittsburgh?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Pittsburgh from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Pittsburgh?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Pittsburgh with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and PIT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Pittsburgh?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Pittsburgh from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Prefer to fly non-stop from St. Louis to Pittsburgh?

Find which airlines fly direct from Lambert-St Louis to Pittsburgh, which days they fly and book direct flights.

Nonstop departures

Lambert-St Louis to Pittsburgh

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Nonstop returns

Pittsburgh to Lambert-St Louis

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights
See more direct flights

Top 4 airlines serving from St. Louis to Pittsburgh

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Pittsburgh. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Pittsburgh? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10838 reviews
7.9Comfort
8.6Crew
8.2Boarding
8.0Entertainment
7.4Food
Airline reviews

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

10.0 ExcellentAllan, May 2024SUN - SLC
Read more about Delta reviews

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The pilots were good. Disappointing when planes don't have electrical ports

I liked the piloting of the aircraft. Very disappointed about lack of electrical ports. Also, although a short flight. there was enough time to hand out snacks to comfort + seats as was done for first class.

I had a wonderful experience flying with delta. The gentleman taking care of us on our flight was so nice, accommodating, and attentive. He always was smiling and giving pins to the kids which made me smile. The flight was quick too and without turbulence. Thank you for the great flying experience.

Delta is one of the best airlines I have flown

Made the Atlanta to Pittsburgh trip many times, with Delta no issues

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

All flights were on time and boarding was issue free

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

Great! The plane was decently sized and comfortable. The staff was nice and there was great in flight entertainment

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

Our original business class flight was cancelled so we not only downgraded but we were also spread out across the plane not sitting together in separate middle seats. My poor kids were scared and couldn’t see me on the flight and the crew wasn’t sensitive to the situation and what the airlines did to us. Very dissatisfied with United airlines.

Crew were fine, drinks and snacks were as well but we were delayed for around 2 hrs which made our entry into Mexico delayed as well with the influx of arrivals at the same time. Sort of wasted our first day of vacation. We left Pittsburgh at 630am and did not arrive in Mexico until late dinner time.

Too bad that first class seats do not recline significantly causing discomfort

The flight was great but board was a nightmare. The gate was changed 4 times during the layover period

The experience was great and much better than the flight going out. of course I was in first class but the service was excellent

American Airlines continues to price it can provide the least comfortable passenger experience in the air. This legacy carrier rivals the budgets for both terrible seats and inadequate amenities. I am a 5’7” woman who is not wider than a coach seat (even on these narrow bodied aircraft). My 3.5 hour flight was terribly uncomfortable because the leg room is inadequate (my knees hit the seat on front of me even when it was not reclined); the seat barely reclines; and the foam padding is worn thin to the extent one can feel the metal supports of the seat. Add to this the fact that the aisle is super narrow, so that the drink cart literally scrapes the arm rest of the aisle seat. It’s basically torture.

Food options were limited which is absolutely embarrassing for a Flight of this size The staff did not come around as much and I am not accustomed to such poor service from American Airlines Drinks I believe were limited to soda and water

Was as expected. Good leg room on planes - much appreciated.

I don’t think the flight attendants are happy. They do not seem to be friendly or welcoming.

Smaller, regional aircraft limits amount of overhead luggage space. At least there were jetways at both BNA and PHL. First class food service was minimal with the usual assortment of packaged snacks (nothing creative) and no handiwipes. American tries to turn around aircraft too quickly without enough time to clean the planes. WIFI service did not include TV programming.

6 plus hour delay with no explanation. No wheelchairs to transport us on arrival. Very disappointed.

Food choice is limited, entertainment better than average, seat leg room terrible

The crew was not great or professional. It seemed like they didn't really want to be there. A true lack of effort for accommodating customers.

Everything was really good but the seats are not very comfortable.

I paid for WiFi, but it (WiFi) was very very slow, will never take again! Impossible open Utube 😤😤😤

I had no legroom, although I paid for extra legroom. I could barely put my bag in front of my feet and under the seat. The Wi-Fi was horrible. In fact the flight attendant said that they had to reboot it and see if it was going to work and never did.

The guy with severe body odor sat next to me. For the whole duration of the flight it was a torture. The airline should have better policy on limiting people with bad body odor to board the flight. Passengers should not be the ones to endure bad odor for the whole duration of the flight. The airline should be e the one to ensure decent air quality for ever passenger.

Overall it was a miserable experience... I will never fly spirit for more than a 3 hour flight or overnight.

The boarding attendant was slightly rude when I asked about checking our stroller. Made me feel like I was bothering her.

My wife and I are both handicapped and at boarding they upgraded us to a seat closer to the front rather than all the way towards the back. Much appreciated.

Not much seat room, but that was unexpected. But the seat headrest was very uncomfortable.

First the good, everyone was friendly and efficient. Flight was smooth and plane was very clean and new. Now the bad, seats have almost no padding on your behind. I was in exit row so I had tons of leg room for a 6' 2" bean pole with long legs. Everything was extra - water, soda, snacks everything besides oxygen. Ya get what you pay for, and my flight was cheap as you could ever want it, so no worries.

Book cheap flights from St. Louis to Pittsburgh

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Pittsburgh found on KAYAK in the last 72 hours.
5/22Wed
1 stopFrontier
8h 39mSTL-PIT
$63
7/27Sat
1 stopFrontier
4h 29mSTL-PIT
$80
5/23Thu
1 stopSpirit Airlines
22h 34mSTL-PIT
$104
5/23Thu
2 stopsSpirit Airlines
24h 54mSTL-PIT
$120
7/26Fri
1 stopDelta
3h 39mSTL-PIT
$144
6/30Sun
1 stopAmerican Airlines
5h 04mSTL-PIT
$153
6/12Wed
1 stopDelta
5h 59mSTL-PIT
$206
9/11Wed
2 stopsUnited Airlines
11h 03mSTL-PIT
$264
5/22Wed
2 stopsAmerican Airlines
8h 25mSTL-PIT
$285
6/12Wed
2 stopsUnited Airlines
15h 09mSTL-PIT
$551

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Last minute flights from St. Louis to Pittsburgh

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from St. Louis to Pittsburgh that are departing in the next 10 days.
5/9Thu
multi-stop
23h 47mSTL-PIT
5/12Sun
multi-stop
22h 11mPIT-STL
$320
5/9Thu
multi-stop
27h 04mSTL-PIT
5/12Sun
multi-stop
7h 29mPIT-STL
$426
5/9Thu
multi-stop
38h 24mSTL-PIT
5/12Sun
multi-stop
11h 52mPIT-STL
$465
5/9Thu
multi-stop
27h 04mSTL-PIT
5/12Sun
multi-stop
17h 38mPIT-STL
$527
5/9Thu
multi-stop
17h 28mSTL-PIT
5/12Sun
multi-stop
11h 52mPIT-STL
$570

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St. Louis - Pittsburgh Flights

Departure:

St. Louis (STL)United States

Destination:

Pittsburgh (PIT)United States

Return flight deals:

Pittsburgh - St. Louis

Cabin classes: