Cheap flights from Denver, CO to San Antonio, TX

Flights starting at $23. Choose between United Airlines, Frontier Airlines, or Spirit Airlines to find the best price.

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The distance between Denver and San Antonio is 1281 km. The most popular airlines for this route are United Airlines, Frontier Airlines, Spirit Airlines, JetBlue Airways, and Alaska Airlines. Denver and San Antonio have 107 direct flights per week.

Weekly direct flights

Discover the top airlines offering direct flights from Denver to San Antonio in the next month. You’ll find the number of daily direct flights per airline in the table.

Weekly direct flights for Sun 07.04 - Sat 13.04

AirlineSun 07.04Mon 08.04Tue 09.04Wed 10.04Thu 11.04Fri 12.04Sat 13.04
4444444
---1---1---11

Weekly direct flights for Sun 14.04 - Sat 20.04

AirlineSun 14.04Mon 15.04Tue 16.04Wed 17.04Thu 18.04Fri 19.04Sat 20.04
4444444
---1---1---11

Weekly direct flights for Sun 21.04 - Sat 27.04

AirlineSun 21.04Mon 22.04Tue 23.04Wed 24.04Thu 25.04Fri 26.04Sat 27.04
4444444
---1---1---11

Weekly direct flights for Sun 28.04 - Sat 04.05

AirlineSun 28.04Mon 29.04Tue 30.04Wed 01.05Thu 02.05Fri 03.05Sat 04.05
4444434
---1---1---11

Check-in for a flight from Denver to San Antonio

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
United AirlinesUALUAYesNo
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight
JetBlue AirwaysJBUB6NoOpens 24 days before flight
Closes 2 hours before flight
Alaska AirlinesASAASNoOpens 24 days before flight
Closes 1 hours before flight

Weather in San Antonio

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January17°C7°C
February19°C9°C
March23°C12°C
April27°C16°C
May30°C19°C
June34°C23°C
July35°C24°C
August36°C25°C
September32°C22°C
October28°C17°C
November21°C12°C
December18°C9°C
Hottest Month
36°C
August
Coldest month
7°C
January
Sunny days
300
days per year

14 day forecast

Thursday
4 Apr
29°C14°C
11 Apr
26°C14°C
Friday
5 Apr
29°C13°C
12 Apr
25°C12°C
Saturday
6 Apr
87%
23°C15°C
13 Apr
25°C12°C
Sunday
7 Apr
89%
29°C18°C
14 Apr
87%
27°C17°C
Monday
8 Apr
89%
27°C19°C
15 Apr
67%
31°C18°C
Tuesday
9 Apr
81%
24°C21°C
16 Apr
85%
26°C16°C
Wednesday
10 Apr
65%
25°C17°C
17 Apr
87%
20°C19°C

Frequently asked questions

How long does it take to travel from Denver to San Antonio?
What is the flight distance between Denver and San Antonio?
What airlines offer nonstop (direct) flights between Denver and San Antonio?
What are the most popular routes to and from Denver?
What are the most popular routes to and from San Antonio?
Which airports are there in Denver?
What airports are near Denver?
What airports are near San Antonio?
Is it possible to combine flights, buses, and trains in one itinerary when traveling between Denver and San Antonio?
What is Virtual Interlining and how do I use it?
Which airlines fly between Denver and San Antonio?
When's the best time to travel between Denver and San Antonio?
What flights operate between Denver and San Antonio?
How many airports are there near Denver?
How many airports are there near San Antonio?
What time do nonstop (direct) flights between Denver and San Antonio depart?
What time do nonstop (direct) flights between Denver and San Antonio arrive?
What time do flights between Denver and San Antonio depart?
What time do flights between Denver and San Antonio arrive?

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