Nonstop flights from San Antonio to St. Louis

Southwest Airlines flies this route 1 to 2 times a day.

SATSan Antonio International

787 mi · 13 flights a week

STLSt. Louis Lambert International

SATSTL

When they leave

San Antonio time

7:10a3:50pFirst departure 7:10 AM, last 3:50 PM

Two in the morning, 7:10 AM to 7:20 AM, then two in the afternoon, 3:30 PM to 3:50 PM.

Every flight

Earliest first

7:10 AM→9:15 AMSouthwest AirlinesBoeing 737 MAX 8Tue, Wed, Sun
7:20 AM→9:25 AMSouthwest AirlinesBoeing 737Mon, Thu, Fri, Sat
3:30 PM→5:40 PMSouthwest AirlinesBoeing 737-700Mon, Thu, Fri
3:30 PM→5:40 PMSouthwest AirlinesBoeing 737 MAX 8Tue, Wed
3:50 PM→6:00 PMSouthwest AirlinesBoeing 737 MAX 8Sun

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

Flying from San Antonio to St. Louis

Southwest Airlines is the only airline flying nonstop from San Antonio to St. Louis, 1 to 2 times a day on the Boeing 737 MAX 8, Boeing 737 and Boeing 737-700.

There are 1 or 2 flights every day of the week. The first arrival in St. Louis is at 9:15 AM and the last at 6:00 PM. The flight covers 787 miles.

Flying back, St. Louis to San Antonio has 13 nonstop flights a week.

Return flights

St. Louis to San AntonioView

Find the cheapest day to fly from San Antonio to St. Louis.

Schedules as of Oct 9, 2026.