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Cheap Flights from Pittsburgh (PITA) to St Louis (STL)

Compare Pittsburgh to St Louis flight deals

Find the cheapest month or even day of the year to fly to St Louis

Book the best St Louis fare with no extra fees

Flight deals from Pittsburgh to St Louis

Looking for a cheap last-minute deal or the best round-trip flight from Pittsburgh to St Louis? Find the lowest prices on one-way and round-trip tickets right here.
St Louis.$70 per passenger.Departing Sun, Feb 2.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Pittsburgh International on Sun, Feb 2, arriving in St Louis.Price includes taxes and charges.From $70, select.
St Louis.$104 per passenger.Departing Tue, Nov 19.One-way flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departing from Pittsburgh International on Tue, Nov 19, arriving in St Louis.Price includes taxes and charges.From $104, select.
St Louis.$112 per passenger.Departing Sat, Dec 14.One-way flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departing from Pittsburgh International on Sat, Dec 14, arriving in St Louis.Price includes taxes and charges.From $112, select.
St Louis.$122 per passenger.Departing Wed, Jan 8.One-way flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departing from Pittsburgh International on Wed, Jan 8, arriving in St Louis.Price includes taxes and charges.From $122, select.
St Louis.$142 per passenger.Departing Wed, Dec 4.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departing from Pittsburgh International on Wed, Dec 4, arriving in St Louis.Price includes taxes and charges.From $142, select.
St Louis.$165 per passenger.Departing Wed, Jan 8.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departing from Pittsburgh International on Wed, Jan 8, arriving in St Louis.Price includes taxes and charges.From $165, select.
St Louis.$166 per passenger.Departing Sun, Feb 2.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departing from Pittsburgh International on Sun, Feb 2, arriving in St Louis.Price includes taxes and charges.From $166, select.
St Louis.$180 per passenger.Departing Tue, Nov 19.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departing from Pittsburgh International on Tue, Nov 19, arriving in St Louis.Price includes taxes and charges.From $180, select.

Find the cheapest month to fly from Pittsburgh to St Louis

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Pittsburgh to St Louis flights are currently cheapest in February.
Nov
from $104
Dec
from $112
Jan
from $122
Feb
from $70
Mar
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Apr
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May
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Jun
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Jul
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Aug
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Sep
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Oct
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Direct flights from Pittsburgh to St Louis

Pittsburgh to St Louis: Alternative routes

Compare routes from Pittsburgh to St Louis below. You may find an airport to fly into that's cheaper, faster, or easier than St Louis.

Pittsburgh to St Louis: Flight information

The things to know before you go.
Cheapest flight found$70
Cheapest month to flyFebruary
Average flight time1 hr, 50 mins
Most popular airlineSouthwest Airlines
Average flights per week10

Finding cheap flights from Pittsburgh to St Louis: Frequently asked questions

The best price we found for a round-trip flight from Pittsburgh to St Louis is $253. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 50 minutes is the average flight time from Pittsburgh to St Louis.
Southwest Airlines flies direct from Pittsburgh to St Louis.
There are 10 flights per week flying from Pittsburgh to St Louis, as of November 2024.
The cheapest month to fly from Pittsburgh to St Louis is usually November 2024.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Pittsburgh to St Louis Airport on Tuesday, November 19, 2024.
Yes – the average flight time is 1 hour and 50 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to St Louis but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to St Louis is around 40 days in advance, so don’t leave your flight to the last minute.

How to find cheap flights to St Louis from Pittsburgh

Looking for cheap tickets from Pittsburgh to St Louis? Here are a few tips on how to secure the best flight price and make your journey as smooth as possible.

  • Simply hit "search." From Delta Air Lines to international carriers like Emirates, we compare all major airlines along with the most popular online travel agents to find the cheapest plane tickets from Pittsburgh to St Louis. And with us, there are no hidden fees – what you see is what you pay.
  • Compare flight deals to St Louis from Pittsburgh from over 1,000 providers. Then choose the cheapest plane tickets or fastest journeys.
  • Flex your dates to find the best Pittsburgh–St Louis ticket prices. If you're flexible when it comes to your travel dates, use Skyscanner's "Whole month" tool to find the cheapest month, and even day to fly to St Louis from Pittsburgh.
  • Set up a Price Alert. You can easily track the fare of your cheap Pittsburgh–St Louis flights by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible flight deal.
  • Fly without stops. Only interested in direct flights between Pittsburgh and St Louis? Make sure to tick "Direct flights only" when performing a search. If there are direct flights available on the route, these will appear in the results.
  • Find the cheapest Business Class flights from Pittsburgh and St Louis. We scour the Internet for the best Business, Premium Economy and First Class flight fares to St Louis, too. Check the difference in price as you search – you might just stumble on a last-minute low fare. Note that not all cabin classes are available for every destination or airline.
  • Include nearby airports in your search. Widen your search for Pittsburgh to St Louis flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save the next time you travel.

    • Combine your flight to St Louis from Pittsburgh with hotels and car rental

    Once you've secured your cheap flight ticket from Pittsburgh to St Louis, discover the best prices and exclusive rates for hotels in St Louis or nearby. You can also compare hundreds of car rental companies at once so you get the best car rental price for your trip.


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Plan the rest of your trip from Pittsburgh to St Louis

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.