Nonstop flights from Chicago to San Antonio

2 airlines fly this route, with up to 6 flights a day.

ORDChicago O'Hare International

1,043 mi · 40 flights a week

SATSan Antonio International

ORDSAT

When they leave

Chicago time

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

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

Every flight

Earliest first

9:25 AM→12:29 PMUnited AirlinesAirbus A319Daily
10:05 AM→12:53 PMAmerican AirlinesAirbus A319Daily
1:30 PM→4:29 PMUnited AirlinesBoeing 737Mon, Tue, Wed, Thu, Fri, Sun
2:58 PM→5:55 PMAmerican AirlinesEmbraer 175Mon, Tue, Wed, Thu, Fri, Sun
7:58 PM→10:57 PMUnited AirlinesBoeing 737Daily
10:00 PM→12:48 AM⁺¹American 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.

Flights run every day of the week, from 4 on Saturdays to 6 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. The flight covers 1,043 miles.

Flying back, San Antonio to Chicago has 41 nonstop flights a week. Midway (MDW) also has nonstop flights to San Antonio, 14 a week.