Cheap flights from San Antonio, TX to Denver, CO

Flights starting at $93. Choose between United Airlines, American Airlines, or Frontier Airlines to find the best price.

Make your travel wishlist, we'll do the rest
Hidden deals
Effortless booking
Travel hacking
Mailbox
Receive exclusive deals by email
Travelers usually depart from San Antonio International, San Antonio, San Antonio-Pearl, or San Antonio, TX Train Station when they travel from San Antonio to Denver. Book your trip to arrive at Denver International, or Denver Union Station. The distance between San Antonio and Denver is 1281 km. The most popular airlines for this route are United Airlines, American Airlines, Frontier Airlines, and Spirit Airlines. San Antonio and Denver have 145 direct flights per week.

Weekly direct flights

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

Weekly direct flights for Sun 26.11 - Sat 02.12

AirlineSun 26.11Mon 27.11Tue 28.11Wed 29.11Thu 30.11Fri 01.12Sat 02.12
3443454
------1---1------

Weekly direct flights for Sun 03.12 - Sat 09.12

AirlineSun 03.12Mon 04.12Tue 05.12Wed 06.12Thu 07.12Fri 08.12Sat 09.12
3---43444
------1---1------

Weekly direct flights for Sun 10.12 - Sat 16.12

AirlineSun 10.12Mon 11.12Tue 12.12Wed 13.12Thu 14.12Fri 15.12Sat 16.12
4443444
1---1---1------

Weekly direct flights for Sun 17.12 - Sat 23.12

AirlineSun 17.12Mon 18.12Tue 19.12Wed 20.12Thu 21.12Fri 22.12Sat 23.12
4443445
1---1---1------

Check-in for a flight from San Antonio to Denver

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
United AirlinesUALUAYesNo
American AirlinesAALAANoNo
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight
Learn more about COVID-19 restrictions in United States in our dedicated Stories article.

Frequently asked questions

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

We hack the system,
you fly for less