Cheap flights from Pittsburgh to Saint Louis

Travel > North America > United States > Pittsburgh to Saint Louis flights

Check our current prices for flights from Pittsburgh to Saint Louis. Please note that we also give you historical search data for this city connection. These are all airfares that people found in the past, in order to find more current flight information from Pittsburgh to Saint Louis, you will need to run a search below.

Search and Compare cheap Flights

Enter your travel details:Step 1

Flight only
Flight + HotelSave up to 30% on vacations

From (city or airport):
Rooms: 1 2 3 4 5 6
Travelers: 1 2 3 4 5 6
To (city or airport):
Depart (mm/dd/yyyy):
Return (mm/dd/yyyy):
Weekly newsletter (optional)

Select merchants to compare:Step 2

 

From $408 / RT details

Book your flight now with Cheapoair.com and save!

Cheap Saint Louis airfares from $408/RT are provided by Cheapoair.com. Outbound flight is leaving on 03/30/2025, 08:18 am from Pittsburgh Intl (PIT) airport and arrives at St. Louis Intl (STL) at 05:52 pm. The flight time is 9 hours and 34 minutes. The Returning flight departes on 04/13/2025, 04:57 pm (other return dates are also available). Date posted: 31 Jan 2025

Price evolution for flights From Pittsburgh To Saint Louis

Recent Deals on Flights from Pittsburgh to Saint Louis:Roundtrip / Oneway

• $408 Multiple Airlines 

  From	To	Departure	Time
  Pittsburgh, PA (PIT)	Saint Louis, MO (STL)	03/30/2025	08:18 am
  Saint Louis, MO (STL)	Pittsburgh, PA (PIT)	04/13/2025	04:57 pm

  cheapoair.com check price
• $430 Frontier Airlines 

  From	To	Departure	Time
  Pittsburgh, PA (PIT)	Saint Louis, MO (STL)	03/30/2025	09:29 pm
  Saint Louis, MO (STL)	Pittsburgh, PA (PIT)	04/13/2025	04:57 pm

  cheapoair.com check price
• We are sorry but currently there are no oneway offers for flights from Pittsburgh to Saint Louis.
  Please visit this page again later or try out our merchant comparison search. Good luck!