Nonstop flights from Baltimore to St. Louis

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

BWIBaltimore/Washington International Thurgood Marshall

736 mi · 27 flights a week

STLSt. Louis Lambert International

BWISTL

When they leave

Baltimore time

6:35a8:30pFirst departure 6:35 AM, last 8:30 PM

Two in the morning, 6:35 AM to 10:25 AM, then one afternoon flight at 1:40 PM, then four in the evening, 5:15 PM to 8:30 PM.

Every flight

Earliest first

6:35 AM→7:45 AMSouthwest AirlinesBoeing 737Mon, Tue, Wed, Thu, Fri, Sun
10:25 AM→11:35 AMSouthwest AirlinesBoeing 737Daily
1:40 PM→2:50 PMSouthwest AirlinesBoeing 737 MAX 8Tue, Wed, Sat
5:15 PM→6:25 PMSouthwest AirlinesBoeing 737 MAX 8Mon, Thu, Fri
6:00 PM→7:15 PMSouthwest AirlinesBoeing 737-700Sun
7:55 PM→9:10 PMSouthwest AirlinesBoeing 737 MAX 8Tue, Wed, Sat, Sun
8:30 PM→9:40 PMSouthwest AirlinesBoeing 737 MAX 8Mon, Thu, Fri

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

Flying from Baltimore to St. Louis

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

There are 3 or 4 flights every day of the week. The first arrival in St. Louis is at 7:45 AM and the last at 9:40 PM. The flight covers 736 miles.

Flying back, St. Louis to Baltimore has 27 nonstop flights a week. Ronald Reagan Washington National (DCA) and Dulles (IAD) also have nonstop flights to St. Louis, 45 and 14 a week.

Return flights

St. Louis to BaltimoreView

Every Washington airport

All Washington to St. Louis flightsView

Find the cheapest day to fly from Baltimore to St. Louis.

Schedules as of Oct 9, 2026.