Nonstop flights from St. Louis to Baltimore

Southwest Airlines flies this route 3 to 4 times a day.

STLSt. Louis Lambert International

736 mi · 27 flights a week

BWIBaltimore/Washington International Thurgood Marshall

STLBWI

When they leave

St. Louis time

6:05a6:50pFirst departure 6:05 AM, last 6:50 PM

Two in the morning, 6:05 AM to 11:40 AM, then three in the afternoon, 1:40 PM to 4:30 PM, then one evening flight at 6:50 PM.

Every flight

Earliest first

6:05 AM→9:10 AMSouthwest AirlinesBoeing 737 MAX 8Daily
11:40 AM→2:40 PMSouthwest AirlinesBoeing 737Mon, Tue, Wed, Thu, Fri, Sun
1:40 PM→4:40 PMSouthwest AirlinesBoeing 737Tue, Wed, Sat, Sun
4:15 PM→7:15 PMSouthwest AirlinesBoeing 737 MAX 8Mon, Thu, Fri
4:30 PM→7:30 PMSouthwest AirlinesBoeing 737-700Tue, Wed
6:50 PM→9:50 PMSouthwest AirlinesBoeing 737Mon, Thu, Fri, Sat, Sun

Schedules last checked Sep 19, 2026. Times are local.

Flying from St. Louis to Baltimore

Southwest Airlines is the only airline flying nonstop from St. Louis to Baltimore, 3 to 4 times a day on the Boeing 737, Boeing 737 MAX 8 and Boeing 737-700.

There are 3 or 4 flights every day of the week. The first arrival in Baltimore is at 9:10 AM and the last at 9:50 PM. The flight covers 736 miles.

Flying back, Baltimore to St. Louis has 27 nonstop flights a week. From St. Louis, Ronald Reagan Washington National (DCA) and Dulles (IAD) are the other Washington area airports with nonstop flights, 45 and 14 a week.