Cheap flights from San Antonio to Denver

Flights overview

Useful information for finding cheap flights from San Antonio to Denver and booking your next trip
Cheapest round-trip flights $108
Frontier Nonstop 3 hr Fri, May 8 — Sun, May 10
The cheapest round-trip flight from San Antonio to Denver is currently $108
Cheapest one-way flight $33
Frontier Nonstop 3 hr Wed, May 13
The cheapest one-way flight from San Antonio to Denver is currently $33
Last-minute weekend getaway $278
Frontier Nonstop 3 hr Sat, Mar 14 — Sun, Mar 15
The cheapest last-minute weekend getaway from San Antonio to Denver is currently $278
Cheapest business class flights $295
Frontier Nonstop 3 hr Sat, May 16 — Mon, May 18
The cheapest business class round-trip flight from San Antonio to Denver is currently $295
Fastest flight 2 hr 10 min The fastest nonstop flight from San Antonio to Denver takes 2 hr 10 min
Nonstop flights Every day There are direct flights on this route every day.

When is the cheapest time to fly?

The cheapest month to fly from San Antonio to Denver is typically January. The most expensive month to fly is typically July.
January
Cheapest
Typical prices: $100–265
July
Most expensive
Typical prices: $175–340

Popular airlines from San Antonio to Denver

  • Southwest
    Nonstop
    from $197
    Typical price: $205–440
    30 weekly nonstop flights
    SAT - DEN Every day
    964 weekly connecting flights
    SAT - DEN Every day
  • United
    Nonstop
    from $197
    Typical price: $215–485
    28 weekly nonstop flights
    SAT - DEN Every day
    377 weekly connecting flights
    SAT - DEN Every day
  • Frontier
    Nonstop
    from $108
    Typical price: $115–280
    12 weekly nonstop flights
    SAT - DEN Every day
    16 weekly connecting flights
    SAT - DEN Every Mon, Tue, Thu, Fri, Sat, Sun
  • American
    from $217
    Typical price: $235–530
    393 weekly connecting flights
    SAT - DEN Every day
  • Delta
    from $217
    Typical price: $235–640
    211 weekly connecting flights
    SAT - DEN Every day
  • Alaska
    from $513
    Typical price: $460–970
    21 weekly connecting flights
    SAT - DEN Every day

Popular airports near San Antonio

  • San Antonio International Airport (SAT)
    San Antonio United States 19 min 7 mi
  • Austin-Bergstrom International Airport (AUS)
    Austin United States 1 hr 22 min 72 mi
  • George Bush Intercontinental Airport (IAH)
    Houston United States 3 hr 10 min 193 mi
  • William P. Hobby Airport (HOU)
    Houston United States 3 hr 15 min 193 mi

Popular airports near Denver

  • Denver International Airport (DEN)
    Denver United States 38 min 19 mi
  • Colorado Springs Airport (COS)
    Colorado Springs United States 1 hr 27 min 66 mi
  • Eagle County Regional Airport (EGE)
    Vail United States 2 hr 19 min 103 mi
  • Centennial Airport (APA)
    Denver United States 27 min 14 mi

Frequently asked questions about flying from San Antonio to Denver

The cheapest flights from San Antonio to Denver are usually in January. Typical ticket prices in January range from $100 to $265.
The cheapest round-trip flight from San Antonio to Denver recently found on Google Flights was with Frontier from $108. The cheapest one-way flight was with Frontier from $33.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest Southwest flight from San Antonio to Denver is $197, flying from May 9 to May 10.
  • The cheapest United flight from San Antonio to Denver is $197, flying from May 2 to May 3.
  • The cheapest Frontier flight from San Antonio to Denver is $108, flying from May 8 to May 10.
  • The cheapest American flight from San Antonio to Denver is $217, flying from May 9 to May 11.
  • The cheapest Delta flight from San Antonio to Denver is $217, flying from Apr 18 to Apr 19.
  • The cheapest Alaska flight from San Antonio to Denver is $513, flying from May 7 to May 10.
The cheapest round-trip flight from San Antonio to Denver starts at $108 from Fri, May 8 to Sun, May 10. The cheapest one-way flight starts at $33 and departs on Wed, May 13.
2 hr 10 min is the shortest flight time from San Antonio to Denver.
Denver’s mild summer months (Jun–Aug) are a popular time for visitors exploring the city and nearby national parks. The ski season runs through winter (Nov–Mar). Major events include the National Western Stock Show & Rodeo (Jan) and A Taste of Colorado (Sep) food and arts festival.
It's easy to use Google Flights to find the cheapest days to fly from San Antonio to Denver.
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.
What counts as the best airline for your flights from San Antonio to Denver really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from San Antonio to Denver.

In terms of nonstop flights, Southwest is the most popular. Southwest offers 30 nonstop flights and 964 connecting flights per week. Southwest flies from San Antonio International Airport (SAT) to Denver International Airport (DEN) .

Other popular airlines flying from San Antonio to Denver are:
  • United offers 28 nonstop flights and 377 connecting flights per week. United flies from San Antonio International Airport (SAT) to Denver International Airport (DEN) .
  • Frontier offers 12 nonstop flights and 16 connecting flights per week. Frontier flies from San Antonio International Airport (SAT) to Denver International Airport (DEN) .
  • American offers 393 connecting flights per week. American flies from San Antonio International Airport (SAT) to Denver International Airport (DEN) .
  • Delta offers 211 connecting flights per week. Delta flies from San Antonio International Airport (SAT) to Denver International Airport (DEN) .
  • Alaska offers 21 connecting flights per week. Alaska flies from San Antonio International Airport (SAT) to Denver International Airport (DEN) .
The number of connecting flights refers to distinct flights with at least one stop between San Antonio and Denver.
The cheapest round-trip flight from San Antonio to Denver recently found on Google Flights was with Frontier from $108. The cheapest one-way flight was with Frontier from $33.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest Southwest flight from San Antonio to Denver is $197, flying from May 9 to May 10.
  • The cheapest United flight from San Antonio to Denver is $197, flying from May 2 to May 3.
  • The cheapest Frontier flight from San Antonio to Denver is $108, flying from May 8 to May 10.
  • The cheapest American flight from San Antonio to Denver is $217, flying from May 9 to May 11.
  • The cheapest Delta flight from San Antonio to Denver is $217, flying from Apr 18 to Apr 19.
  • The cheapest Alaska flight from San Antonio to Denver is $513, flying from May 7 to May 10.
Southwest, United and Frontier fly direct from San Antonio to Denver.
  • There are 30 Southwest direct flights from San Antonio to Denver per week. Flights are available every day.
  • There are 28 United direct flights from San Antonio to Denver per week. Flights are available every day.
  • There are 12 Frontier direct flights from San Antonio to Denver per week. Flights are available every day.
Use the Stops filter while searching for flights, to see only nonstop options in your results.
The cheapest last-minute deal between San Antonio and Denver at price $278 is offered by Frontier from Sat, Mar 14 to Sun, Mar 15.
Southwest, United and Frontier fly direct from San Antonio to Denver.
  • There are 30 Southwest direct flights from San Antonio to Denver per week. Flights are available every day.
  • There are 28 United direct flights from San Antonio to Denver per week. Flights are available every day.
  • There are 12 Frontier direct flights from San Antonio to Denver per week. Flights are available every day.
Use the Stops filter while searching for flights, to see only nonstop options in your results.
There are direct flights from San Antonio to Denver on a daily basis.
The cheapest direct (nonstop) round-trip flights between San Antonio and Denver start at $108 from Fri, May 8 to Sun, May 10 with Frontier.
It's easy to find nonstop flights with Google Flights! Once you've searched for flights from San Antonio to Denver, just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.
The cheapest business class round-trip flights between San Antonio and Denver start at $295 from Sat, May 16 to Mon, May 18 with Frontier.
The cheapest economy class round-trip flights between San Antonio and Denver start at $108 from Fri, May 8 to Sun, May 10.
To book business class trips from San Antonio to Denver, look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.
The best last-minute getaway deal for the next weekend between San Antonio and Denver starts at $278 from Sat, Mar 14 to Sun, Mar 15 with Frontier.
The cheapest last-minute deal between San Antonio and Denver at price $278 is offered by Frontier from Sat, Mar 14 to Sun, Mar 15.
To find last-minute flight deals from San Antonio to Denver, start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.

Search more flights

Popular trips from San Antonio

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