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Direct flights from St Louis to Baltimore

Did you mean Flights from Baltimore to St Louis?

Flightmap/Flights from STL/STL to BWI

St Louis

United States

STL

Lambert St Louis International Airport

Baltimore

United States

BWI

Baltimore/Washington International Thurgood Marshal Airport

Route
Nonstop service available
Distance
736 miles
Marketing airlines
1 airline
Aircraft
4 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 STL
  • Flights to BWI
  • Award flights to Washington DC

St Louis to Baltimore route overview

Lambert St Louis International Airport (STL) serves St Louis; Baltimore/Washington International Thurgood Marshal Airport (BWI) serves Baltimore.

The airports are 736 miles apart by great-circle distance.

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

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 St Louis to Baltimore 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 STL to BWI

Frequently asked questions

Which airports serve the St Louis to Baltimore route?

Lambert St Louis International Airport (STL) is the origin airport and Baltimore/Washington International Thurgood Marshal Airport (BWI) is the destination airport.

How far is Baltimore from St Louis?

STL and BWI are approximately 736 miles apart by great-circle distance.

Are there direct flights from STL to BWI?

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

Which airlines market flights from STL to BWI?

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 STL to BWI?

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

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