Cheap Flights from Denver International to San Antonio International

Travellers and cabin class

Compare Denver International to San Antonio International flight deals

Find the cheapest month or even day of the year to fly to San Antonio International

Book the best San Antonio International fare with no extra fees

Flight deals from Denver International to San Antonio International

Looking for a cheap last-minute deal or the best return flight from Denver International to San Antonio International? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Denver International to San Antonio International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Denver International to San Antonio International flights are currently cheapest in June.

Direct flights from Denver International to San Antonio International

Denver International to San Antonio International: Alternative routes

Compare routes from Denver International to San Antonio below. You may find an airport to fly into that's cheaper, faster, or easier than San Antonio International.

Denver to San Antonio: Flight information

The things to know before you go.
Cheapest flight foundRs16,897
Cheapest month to flyJune
Average flight time2 hrs, 12 mins
Most popular airlineSouthwest Airlines
Average flights per week97

Finding cheap flights from Denver International to San Antonio International: Frequently asked questions

The best price we found for a return flight from Denver International to San Antonio International is Rs38,441. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 12 minutes is the average flight time from Denver International to San Antonio International.
Southwest Airlines, United and Air Canada fly direct from Denver International to San Antonio International.
As of April 2025, there are 97 flights per week flying from Denver International to San Antonio International.
The cheapest month to fly from Denver International to San Antonio International is usually April 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Denver International Airport to San Antonio International Airport on Sunday, 27 April 2025.
Yes – the average flight time is 2 hours and 12 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Antonio International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Antonio is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Frontier Airlines offers the cheapest flight tickets to San Antonio International.

Travelling from Denver International Airport (DEN) to San Antonio International Airport (SAT): what you need to know

  • The average time for a direct flight from Denver International Airport to San Antonio International Airport is 2 hours 11 minutes. San Antonio's timezone is UTC-5, making San Antonio 1 hour ahead of Denver.

  • Each week, there are 66 flights from Denver International Airport to San Antonio International Airport. The first flight from DEN to SAT is at 05:01 and the latest is at 22:59.

  • Delays at check-in and security are likely if you're travelling during high season, so give yourself some extra wiggle room. A good general rule for peak periods? Get there up to four hours early for international flights and at least two hours for domestic departures.

  • We make it easy to book a flight with a stopover. To see all the options for flights from Denver International Airport to San Antonio International Airport, deselect 'Direct flights only.' Then, pick a flight with a stop long enough to explore the city of your choice. Popular stopovers between DEN and SAT include:

    • Dallas/Fort Worth International Airport

    • Colorado Springs Municipal Airport

    • Dallas Love Field

How to find the cheapest flights from Denver International Airport (DEN) to San Antonio International Airport (SAT)

  • Rs16,521 is the best price for a one-way ticket from Denver International Airport to San Antonio International Airport. A return flight starts from Rs37,587. These prices can change based on demand.

  • Score cheap flights from DEN to SAT by booking 9 months ahead. Based on our research, that's the sweet spot for landing a bargain.

  • The cheapest month for tickets from Denver International Airport to San Antonio International Airport is May. Use the 'Whole month' tool to see the lowest prices if you have flexible dates.

  • Create a Price Alert for cheap flights from DEN to SAT. You don't need to check every day to see whether fares have dropped. We'll tell you when the price changes.

  • Tailor your flights using filters. Pick your ideal departure and arrival times, airlines and total journey duration. You can also sort results by 'Cheapest,' 'Fastest' or 'Best' flights from Denver International Airport to San Antonio International Airport.

Handy information about Denver International Airport (DEN)

  • Travelling from central Denver to Denver International Airport takes about 1 hour and 31 minutes on public transport. If you ride-share, drive or hail a cab, you'll cover the 40 kilometres in 34 minutes or so, depending on traffic.

  • Booking a night at a hotel can take the hassle out of reaching the airport on time. If you want somewhere to stay before your flight from Denver International Airport to San Antonio International Airport, take a look at SpringHill Suites Denver Airport. It's a quick drive from DEN.

Arriving at San Antonio International Airport (SAT)

Getting from San Antonio International Airport (SAT) to central San Antonio

  • San Antonio International Airport is approximately 19 kilometres from central San Antonio. With your own car rental or if you're catching a cab, the drive is about 21 minutes.

  • Getting there on public transport takes around 1 hour and 32 minutes.

When to fly to San Antonio International Airport (SAT)

  • July is the busiest month for flights from Denver International Airport to San Antonio International Airport. To steer clear of the crowds, travel to San Antonio in April.

  • Before locking in your flight from Denver International Airport to San Antonio International Airport, think about the type of weather you like. August is the warmest month in San Antonio, with the temperature ranging from 23ºC to 40ºC.

  • January sees average temperatures of between 3ºC and 20ºC. Search for cheap flights from DEN to SAT around that time if you like cooler conditions.

More about San Antonio

  • Start your San Antonio trip right by finding a wonderful place to stay. Once you've booked your flight from DEN to SAT, browse our selection of accommodation options including:

  • There are so many things to see and do in this city it can be tricky to work out where to begin. The San Antonio River Walk, San Antonio Missions National Historical Park and San Fernando Cathedral are popular attractions which should be on every San Antonio itinerary.

Complete your San Antonio trip with hotels and a car rental

  • Comparing flights is not the only thing we're good at. Once you've booked your cheap ticket to San Antonio International Airport, explore our great car rental deals that'll give you the flexibility to see the sights at your own pace. Next, have a look at our exclusive rates for hotels to find your perfect San Antonio stay.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.