Nonstop flights from Denver to San Antonio

3 airlines fly this route, with up to 9 flights a day.

DENDenver International

795 mi · 59 flights a week

SATSan Antonio International

DENSAT

When they leave

Denver time

8:30a8:35pFirst departure 8:30 AM, last 8:35 PM

Two in the morning, 8:30 AM to 9:35 AM, then four in the afternoon, 12:10 PM to 4:00 PM, then four in the evening, 5:40 PM to 8:35 PM.

Every flight

Earliest first

8:30 AM→11:40 AMSouthwest AirlinesBoeing 737Daily
9:35 AM→12:43 PMUnited AirlinesBoeing 737Daily
12:10 PM→3:20 PMSouthwest AirlinesBoeing 737Daily
1:45 PM→4:55 PMUnited AirlinesBoeing 737-800Daily
3:40 PM→6:54 PMFrontier AirlinesAirbus A321Daily
4:00 PM→7:10 PMSouthwest AirlinesBoeing 737Mon, Thu, Fri
5:40 PM→8:52 PMUnited AirlinesBoeing 737Daily
6:00 PM→9:25 PMSouthwest AirlinesBoeing 737-700Mon, Tue, Wed, Thu, Fri, Sat
6:45 PM→9:55 PMSouthwest AirlinesBoeing 737 MAX 8Sun
8:35 PM→11:57 PMUnited AirlinesEmbraer 175Daily

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

Flying from Denver to San Antonio

United Airlines flies most often, 4 times a day on the Boeing 737, Boeing 737-800 and Embraer 175. Southwest Airlines flies 3 to 4 times a day on the Boeing 737, Boeing 737 MAX 8 and Boeing 737-700. Frontier Airlines flies daily on the Airbus A321.

Flights run every day of the week, 9 on Mondays, Thursdays and Fridays and 8 on the other days. The first arrival in San Antonio is at 11:40 AM and the last at 11:57 PM. The flight covers 795 miles.

Flying back, San Antonio to Denver has 59 nonstop flights a week.

Return flights

San Antonio to DenverView

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

Schedules as of Oct 9, 2026.