Denver, CO to San Antonio, TX flights from $44

Flights starting at $44. Choose between United Airlines, Frontier Airlines, or American Airlines to find the best price.

Make your travel wishlist, we'll do the rest
Hidden deals

Kiwi-Code uncovers prices airlines don't want you to see.

Effortless booking

Use our flexible filters to tailor your search.

Travel hacking

Look out for the travel hack star icon for even cheaper fares.

Tips to know when travelling to San Antonio

Cheapest one-way trip

$44

Cheapest nonstop round-trip

$56

Cheapest round-trip

$90

Average round-trip

$198

Nonstop flights in April

$56 – $211

Round trips

Updated:

Show more return flights

One-way trips

Updated:

796 miles
Distance
Duration
Mailbox
Receive exclusive deals by email

By subscribing you agree to receive offers according to the conditions described in our Privacy Policy.

Travelers usually depart from Denver International, Denver Union Station, or Rocky Mountain Metropolitan Airport when they travel from Denver to San Antonio. Book your trip to arrive at San Antonio International, San Antonio, TX Train Station, San Antonio, San Antonio-Patton Tareyton Tempo, or San Antonio-Pearl. The distance between Denver and San Antonio is 1281 km. The most popular airlines for this route are United Airlines, Frontier Airlines, American Airlines, Spirit Airlines, and Delta Air Lines. Denver and San Antonio have 224 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 19.03 - Sat 25.03

AirlineSun 19.03Mon 20.03Tue 21.03Wed 22.03Thu 23.03Fri 24.03Sat 25.03
United Airlines
3544444
1---1---1------

Weekly direct flights for Sun 26.03 - Sat 01.04

AirlineSun 26.03Mon 27.03Tue 28.03Wed 29.03Thu 30.03Fri 31.03Sat 01.04
4444444
1---1---1------

Weekly direct flights for Sun 02.04 - Sat 08.04

AirlineSun 02.04Mon 03.04Tue 04.04Wed 05.04Thu 06.04Fri 07.04Sat 08.04
4444444
1---1---1------

Weekly direct flights for Sun 09.04 - Sat 15.04

AirlineSun 09.04Mon 10.04Tue 11.04Wed 12.04Thu 13.04Fri 14.04Sat 15.04
4444444
1---1---1------

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
American AirlinesAALAAYesNo
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight
Delta Air LinesDALDLYesOpens 24 days before flight
Closes 1 hours before flight

United States COVID-19 travel restrictions

Your trip summary

Most travelers from Denver, DEN can enter San Antonio, SAT.

Departure

Additional information
  • Masks are recommended in certain settings

Information is provided as guidance only and accurate at the time of publishing. Always check government websites and airline materials before booking and traveling.

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 Denver to San Antonio?
A one-way nonstop (direct) flight between Denver and San Antonio takes around 2.1 hours.
What is the flight distance between Denver and San Antonio?
The flight distance between Denver and San Antonio is 1281 km.
What airlines offer nonstop (direct) flights between Denver and San Antonio?
Several carriers operate flights between Denver and San Antonio. Airlines offering nonstop (direct) flights include Frontier Airlines, United Airlines.
What are the most popular routes to and from Denver?
Travelers frequently search for route combinations, such as Denver and Las Vegas, Los Angeles, Chicago, Minneapolis, Dallas, Washington, D.C., Orlando, Phoenix, San Francisco, Houston, San Diego, Austin, Atlanta, Paris, Philadelphia, New York, Miami, London, Seattle, Tampa.
What are the most popular routes to and from San Antonio?
Travelers frequently search for route combinations, such as San Antonio and Las Vegas, Orlando, San Diego, Atlanta, Los Angeles, Phoenix, Washington, D.C., Chicago, Mexico City, Salt Lake City, Minneapolis, San Juan, Charlotte, San Francisco, Philadelphia, Colorado Springs, Fort Lauderdale, New York, Santa Ana, Raleigh.
Which airports are there in Denver?
Denver is mainly served by Denver International. But there are other airports nearby, including Rocky Mountain Metropolitan Airport, Centennial Airport.
What airports are near Denver?
The main airport in Denver is Denver International. It is also served by Pueblo Memorial, Colorado Springs, Laramie Regional, Eagle County Regional, Cheyenne Regional.
What airports are near San Antonio?
The main airport in San Antonio is San Antonio International. It is also served by Austin–Bergstrom International, San Antonio International, Nuevo Laredo International, Laredo International, Corpus Christi International, Killeen–Fort Hood Regional, Victoria Regional, Del Rio International, Easterwood.
Is it possible to combine flights, buses, and trains in one itinerary when traveling between Denver and San Antonio?
Yes, it's possible to combine different modes of transport between Denver and San Antonio thanks to our Virtual Interlining technology. Making use of not only flights but also trains and buses between Denver and San Antonio can give rise to new adventures. Read more about how Virtual Interlining works on Kiwi.com Stories.
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?

Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.

Search flightsSearch direct flights

Explore alternative trips

Flights from Denver

Flights to San Antonio

Popular routes

Find the best connection from Denver to San Antonio

Search, compare, and book flights, trains, or buses to get there.

Search flights, trains & buses

Kiwi.com: the best free travel app for Android and iPhone

Find out more about the Kiwi.com app on kiwi.com/mobile . With our app you can search for the best plane, train and bus connections. The Kiwi.com mobile app offers cheap flights, access to hidden features, travel hacks and special offers.

Search cheap flights

Simplified planning and booking

Travel deals built for you

Kiwi.com travel hacks


We hack the system,
you fly for less