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Direct flights from Pittsburgh to St Louis

Did you mean Flights from St Louis to Pittsburgh?

Flightmap/Flights from PIT/PIT to STL

Pittsburgh

United States

PIT

Pittsburgh International Airport

St Louis

United States

STL

Lambert St Louis International Airport

Route
Nonstop service available
Distance
552 miles
Marketing airlines
1 airline
Aircraft
3 aircraft types
Dates
Oct 19, 2026 – Aug 2, 2027

Observed award fares

A sample of one-way prices for one traveler from Roame’s fare cache. Points, fees, and seats describe the same observation. Availability can change; confirm with the loyalty program before transferring points.

Departure window: 2026-10-23 – 2026-11-21.

No recent fares appear in this limited preview. This does not mean the route is sold out. Use the search controls to check other dates and routes.

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Explore these airports and cities

  • Flights from PIT
  • Flights to STL

Pittsburgh to St Louis route overview

Pittsburgh International Airport (PIT) serves Pittsburgh; Lambert St Louis International Airport (STL) serves St Louis.

The airports are 552 miles apart by great-circle distance.

Roame's current schedule feed shows nonstop service from PIT to STL.

Marketing airlines listed in the current schedule, including codeshare sellers, are Southwest Airlines (WN). This list does not identify the operating airline for each flight; check the flight details before booking.

Published schedule dates span Oct 19, 2026 – Aug 2, 2027.

Marketing airlines on the Pittsburgh to St Louis route

These are marketing airlines, including codeshare sellers. This list does not identify the operating airline for each flight; check the flight details before booking.

Aircraft flying from PIT to STL

Frequently asked questions

Which airports serve the Pittsburgh to St Louis route?

Pittsburgh International Airport (PIT) is the origin airport and Lambert St Louis International Airport (STL) is the destination airport.

How far is St Louis from Pittsburgh?

PIT and STL are approximately 552 miles apart by great-circle distance.

Are there direct flights from PIT to STL?

Yes. Roame's current schedule feed shows nonstop service from PIT to STL.

Which airlines market flights from PIT to STL?

Marketing airlines listed in the current schedule, including codeshare sellers, are Southwest Airlines (WN). This list does not identify the operating airline for each flight; check the flight details before booking.

Which aircraft fly from PIT to STL?

Aircraft listed in the current schedule include Boeing 737-800 Winglets (73H), Boeing 737 MAX 8 (7M8) and 7S7.

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