Nonstop flights from Chicago to San Antonio

3 airlines fly from 2 Chicago airports (ORD and MDW) to San Antonio (SAT), with up to 8 flights a day.

ORDSAT

Routes

2 airport pairs

When they leave

Chicago time

9:25a10:00pFirst departure 9:25 AM, last 10:00 PM

Six in the morning, 9:25 AM to 11:05 AM, then two in the afternoon, 1:30 PM to 2:58 PM, then four in the evening, 7:58 PM to 10:00 PM.

Every flight

Earliest first

9:25 AM→12:29 PMORD to SATUnited AirlinesAirbus A319Daily
10:05 AM→12:53 PMORD to SATAmerican AirlinesAirbus A319Daily
10:10 AM→12:50 PMMDW to SATSouthwest AirlinesBoeing 737-700Sun
10:10 AM→12:50 PMMDW to SATSouthwest AirlinesBoeing 737Tue, Wed
10:35 AM→1:15 PMMDW to SATSouthwest AirlinesBoeing 737-700Mon
10:55 AM→1:35 PMMDW to SATSouthwest AirlinesBoeing 737Sat
11:05 AM→1:40 PMMDW to SATSouthwest AirlinesBoeing 737-700Thu, Fri
1:30 PM→4:29 PMORD to SATUnited AirlinesBoeing 737Mon, Tue, Wed, Thu, Fri, Sun
2:58 PM→5:55 PMORD to SATAmerican AirlinesEmbraer 175Mon, Tue, Wed, Thu, Fri, Sun
7:58 PM→10:57 PMORD to SATUnited AirlinesBoeing 737Daily
8:30 PM→11:15 PMMDW to SATSouthwest AirlinesBoeing 737Mon, Sat, Sun
8:30 PM→11:10 PMMDW to SATSouthwest AirlinesBoeing 737 MAX 8Tue, Wed
8:35 PM→11:15 PMMDW to SATSouthwest AirlinesBoeing 737 MAX 8Thu, Fri
10:00 PM→12:48 AM⁺¹ORD to SATAmerican AirlinesAirbus A319Daily

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

Flying from Chicago to San Antonio

American Airlines flies 2 to 3 times a day on the Airbus A319 and Embraer 175. United Airlines flies 2 to 3 times a day on the Boeing 737 and Airbus A319. Southwest Airlines flies twice a day on the Boeing 737, Boeing 737-700 and Boeing 737 MAX 8.

Flights run every day of the week, from 6 on Saturdays to 8 on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays and Sundays. The first arrival in San Antonio is at 12:29 PM and the last at 12:48 AM the next day.

ORD to SAT is the busiest airport pair, with 40 flights a week, then MDW to SAT with 14.

Flying back, San Antonio to Chicago has 54 nonstop flights a week.

Return flights

San Antonio to ChicagoView

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

Schedules as of Oct 9, 2026.