Nonstop flights from San Antonio to Houston

2 airlines fly from San Antonio (SAT) to 2 Houston airports (IAH and HOU), with up to 11 flights a day.

SATIAH

Routes

2 airport pairs

When they leave

San Antonio time

5:30a7:30pFirst departure 5:30 AM, last 7:30 PM

Seven in the morning, 5:30 AM to 11:43 AM, then eight in the afternoon, 12:00 PM to 4:20 PM, then five in the evening, 5:57 PM to 7:30 PM.

Every flight

Earliest first

5:30 AM→6:37 AMSAT to IAHUnited AirlinesBoeing 737Mon, Fri, Sat, Sun
5:30 AM→6:33 AMSAT to IAHUnited AirlinesAirbus A320Tue, Wed, Thu
6:00 AM→7:00 AMSAT to HOUSouthwest AirlinesBoeing 737-700Daily
7:43 AM→8:50 AMSAT to IAHUnited AirlinesBoeing 737Daily
8:35 AM→9:30 AMSAT to HOUSouthwest AirlinesBoeing 737-700Sat
9:30 AM→10:43 AMSAT to IAHUnited AirlinesBoeing 737Tue, Wed, Thu
9:37 AM→10:44 AMSAT to IAHUnited AirlinesAirbus A320Mon, Fri, Sat, Sun
11:43 AM→12:55 PMSAT to IAHUnited AirlinesEmbraer 175Mon, Fri, Sat, Sun
12:00 PM→1:07 PMSAT to IAHUnited AirlinesBoeing 737 MAX 9Tue, Wed, Thu
12:20 PM→1:15 PMSAT to HOUSouthwest AirlinesBoeing 737 MAX 8Sun
12:55 PM→1:55 PMSAT to HOUSouthwest AirlinesBoeing 737-700Tue, Wed
1:00 PM→2:00 PMSAT to HOUSouthwest AirlinesBoeing 737-700Mon, Thu, Fri
2:15 PM→3:27 PMSAT to IAHUnited AirlinesEmbraer 175Mon, Fri, Sat, Sun
2:15 PM→3:24 PMSAT to IAHUnited AirlinesEmbraer 175Tue, Wed, Thu
3:40 PM→4:40 PMSAT to HOUSouthwest AirlinesBoeing 737-700Sat
4:12 PM→5:25 PMSAT to IAHUnited AirlinesBoeing 737Daily
4:20 PM→5:20 PMSAT to HOUSouthwest AirlinesBoeing 737 MAX 8Tue, Wed
5:57 PM→7:04 PMSAT to IAHUnited AirlinesBoeing 737Mon, Fri, Sat, Sun
5:59 PM→7:10 PMSAT to IAHUnited AirlinesBoeing 737Tue, Wed, Thu
6:50 PM→7:50 PMSAT to HOUSouthwest AirlinesBoeing 737 MAX 8Mon, Thu, Fri
7:20 PM→8:33 PMSAT to IAHUnited AirlinesEmbraer 175Mon, Fri, Sun
7:20 PM→8:33 PMSAT to IAHUnited AirlinesEmbraer 175Sat
7:30 PM→8:30 PMSAT to HOUSouthwest AirlinesBoeing 737-700Sun

Schedules last checked Sep 21, 2026. Times are local.

Flying from San Antonio to Houston

United Airlines flies most often, 7 to 8 times a day on the Boeing 737, Embraer 175, Airbus A320 and Boeing 737 MAX 9. Southwest Airlines flies 3 times a day on the Boeing 737-700 and Boeing 737 MAX 8.

There are 10 or 11 flights every day of the week. The first arrival in Houston is at 6:33 AM and the last at 8:33 PM.

SAT to IAH is the busiest airport pair, with 53 flights a week, then SAT to HOU with 21.

Flying back, Houston to San Antonio has 75 nonstop flights a week.

Return flights

Houston to San AntonioView

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

Schedules as of Oct 9, 2026.