Nonstop flights from Austin to St. Louis

Southwest Airlines flies this route 1 to 3 times a day.

AUSAustin-Bergstrom International

721 mi · 17 flights a week

STLSt. Louis Lambert International

AUSSTL

When they leave

Austin time

7:20a4:05pFirst departure 7:20 AM, last 4:05 PM

Four in the morning, 7:20 AM to 11:40 AM, then two in the afternoon, 3:15 PM to 4:05 PM.

Every flight

Earliest first

7:20 AM→9:25 AMSouthwest AirlinesBoeing 737Sun
7:25 AM→9:30 AMSouthwest AirlinesBoeing 737-700Mon, Thu, Fri
7:30 AM→9:35 AMSouthwest AirlinesBoeing 737Tue, Wed, Sat
11:40 AM→1:45 PMSouthwest AirlinesBoeing 737-700Mon, Thu, Fri
3:15 PM→5:20 PMSouthwest AirlinesBoeing 737 MAX 8Mon, Tue, Wed, Thu, Fri, Sun
4:05 PM→6:10 PMSouthwest AirlinesBoeing 737 MAX 8Sun

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

Flying from Austin to St. Louis

Southwest Airlines is the only airline flying nonstop from Austin to St. Louis, 1 to 3 times a day on the Boeing 737, Boeing 737 MAX 8 and Boeing 737-700.

Flights run every day of the week, from 1 on Saturdays to 3 on Mondays, Thursdays, Fridays and Sundays. The first arrival in St. Louis is at 9:25 AM and the last at 6:10 PM. The flight covers 721 miles.

Flying back, St. Louis to Austin has 17 nonstop flights a week.

Return flights

St. Louis to AustinView

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

Schedules as of Oct 9, 2026.