Nonstop flights from Houston to San Antonio

United Airlines flies this route 7 to 8 times a day.

IAHHouston George Bush Intercontinental

191 mi · 54 flights a week

SATSan Antonio International

IAHSAT

When they leave

Houston time

7:20a9:35pFirst departure 7:20 AM, last 9:35 PM

Three in the morning, 7:20 AM to 9:39 AM, then five in the afternoon, 12:08 PM to 4:35 PM, then three in the evening, 6:49 PM to 9:35 PM.

Every flight

Earliest first

7:20 AM→8:27 AMUnited AirlinesAirbus A320Mon, Fri, Sat, Sun
7:20 AM→8:26 AMUnited AirlinesBoeing 737Tue
9:30 AM→10:36 AMUnited AirlinesBoeing 737 MAX 9Tue, Wed, Thu
9:39 AM→10:46 AMUnited AirlinesEmbraer 175Mon, Fri, Sat, Sun
12:08 PM→1:17 PMUnited AirlinesEmbraer 175Mon, Fri, Sat, Sun
12:20 PM→1:29 PMUnited AirlinesEmbraer 175Tue, Wed, Thu
2:31 PM→3:39 PMUnited AirlinesAirbus A320Mon, Fri, Sat, Sun
2:35 PM→3:43 PMUnited AirlinesAirbus A320Tue, Wed, Thu
4:35 PM→5:44 PMUnited AirlinesEmbraer 175Mon, Fri, Sun
4:35 PM→5:44 PMUnited AirlinesEmbraer 175Sat
4:35 PM→5:43 PMUnited AirlinesBoeing 737Tue, Wed
4:35 PM→5:44 PMUnited AirlinesEmbraer 175Thu
6:49 PM→7:57 PMUnited AirlinesBoeing 737Daily
8:05 PM→9:13 PMUnited AirlinesAirbus A320Daily
9:35 PM→10:39 PMUnited AirlinesBoeing 737 MAX 9Daily

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

Flying from Houston to San Antonio

United Airlines is the only airline flying nonstop from Houston to San Antonio, 7 to 8 times a day on the Embraer 175, Airbus A320, Boeing 737 and Boeing 737 MAX 9.

There are 7 or 8 flights every day of the week. The first arrival in San Antonio is at 8:26 AM and the last at 10:39 PM. The flight covers 191 miles.

Flying back, San Antonio to Houston has 53 nonstop flights a week. William P. Hobby (HOU) also has nonstop flights to San Antonio, 21 a week.

Return flights

San Antonio to HoustonView

Every Houston airport

All Houston to San Antonio flightsView

Find the cheapest day to fly from Houston to San Antonio.

Schedules as of Oct 9, 2026.