68 € Cheap Flights from San Antonio International to Denver

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Flight deals from San Antonio International to Denver

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

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

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

Direct flights from San Antonio International to Denver

Alternative San Antonio International to Denver routes

Looking for the cheapest, fastest or easiest route from San Antonio International to Denver? You could fly into the following airports instead.

San Antonio to Denver: Flight information

The things to know before you go.
Cheapest flight found68 €
Cheapest month to flyNovember
Average flight time2 hrs, 22 mins
Most popular airlineSouthwest Airlines
Average flights per week94

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

There are 4 airports in Denver: Denver Arapahoe Co, Broomfield, Denver International, and Northern Colorado Regional.
The best price we found for a return flight from San Antonio International to Denver is 68 €. 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 22 minutes is the average flight time from San Antonio International to Denver.
Southwest Airlines, United and Air Canada fly direct from San Antonio International to Denver.
As of October 2025, there are 94 flights per week flying from San Antonio International to Denver.
The cheapest month to fly from San Antonio International to Denver is usually November.
If you're flying from San Antonio International Airport, the cheapest airport near Denver is Denver International – which is 29.9 km away from the centre of Denver. We've found flights into this airport from 68 €.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Antonio International Airport to Denver on Friday, 7 November 2025.
Yes – the average flight time is 2 hours and 22 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 Denver 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 Denver is around 40 days in advance, so don’t leave your flight to the last minute.
In October, the average temperature is usually around 10°C. July is typically the warmest month in Denver, when it usually averages around 31°C. You can expect the least rain in January. The coldest month is December, with temperatures averaging -6°C. The rainiest month is July.
Currently, Frontier Airlines offers the cheapest flight tickets to Denver.

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

  • Hop on a direct flight from San Antonio International Airport to Denver and you'll be in the air for an average of 2 hours 10 minutes.

  • Denver is one hour behind San Antonio, where San Antonio International Airport is located. Denver follows the UTC-6 timezone.

  • With 43 flights a week between the two airports, San Antonio International Airport (SAT) to Denver International Airport (DEN) is the most popular route. Southwest Airlines operates the earliest flight at 05:15. If you prefer to get more out of your day before flying, the latest departure from SAT to DEN is with Frontier Airlines at 20:36.

  • Leave enough time to catch your SAT to Denver flight. A good rule of thumb is to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • If you're heading away during a major holiday or another peak period, allow extra time. A good general rule is two hours ahead of domestic flights and up to four hours before international departures. Queues at check-in and security will be longer.

  • Direct San Antonio International Airport to Denver tickets are available for booking. Denver International Airport (DEN) will be your arrival point.

  • Popular airlines that offer direct flights from San Antonio International Airport to Denver include:

  • Travelling from central San Antonio to SAT takes around 1 hour 30 minutes by public transport. If you ride-share, drive or get a cab, you'll cover the 13 kilometres in 20 minutes or so, depending on traffic.

  • Have an early flight from San Antonio International Airport to Denver? Avoid the hassle of rushing to the airport (and get some extra shut-eye) by choosing one of these hotels close to SAT:

  • San Antonio International Airport maintains a solid on-time performance, making delays less likely. Departures from SAT arrive on schedule 83.17% of the time.

  • The address for SAT is 9800 Airport Boulevard.

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

  • The lowest price we've found for a one-way San Antonio International Airport to Denver flight is 33 €. The cheapest price for a return flight is 68 €. Bear in mind fares can change due to demand at the time of booking.

  • Book one month before you want to fly. Pricing trends show that this is the ideal window for finding cheap flights from SAT to Denver.

  • May is the best month for landing an incredible deal on San Antonio International Airport to Denver tickets. If you want to travel at a different time of year, the 'Whole month' tool will give you the lowest prices across every month.

  • Cut down on the time spent looking for cheap flights from SAT to Denver by creating a Price Alert. You'll get an email or notification on the app when fares go down.

  • Pick your preferred arrival and departure times, airlines and number of stops with our filters. Then, sort the results for your flight from San Antonio International Airport to Denver by 'Cheapest,' 'Fastest' or 'Best.'

Airports in Denver

Denver International Airport (DEN)

  • The distance from Denver International Airport (DEN) to central Denver is roughly 40 kilometres. It'll take you about 35 minutes to reach the centre driving.

  • It'll take around 1 hour 30 minutes if you're travelling on public transport.

  • Jump off your flight from San Antonio International Airport to Denver and be napping in your hotel bed shortly after. If you're searching for a comfortable option just a quick drive from DEN, check out Baymont by Wyndham Denver International Airport.

  • Travel at your own pace with a Denver International Airport rental car. Book your wheels from Routes Car Rentals, Dollar or Budget and experience more of Denver and beyond.

  • To get the lowest price, book your ride from Denver International Airport around one week ahead of your flight from SAT to Denver.

  • DEN is located at 8500 Pena Boulevard.

Best time to go to Denver

  • Carefully consider your dates before securing your flight from San Antonio International Airport to Denver. The city buzzes in peak season, but hotel prices are typically higher and major attractions can be crowded. Go to Denver in the off-season if you want a quieter vibe.

  • Book a San Antonio International Airport to Denver plane ticket with a departure in July if you're eager to experience the city during its warmest month. You can expect temperatures to range from 14ºC (57ºF) to 32ºC (90ºF).

  • If you'd rather travel in cooler conditions, search for a cheap ticket from SAT to Denver in January when temperatures average between -9ºC (16ºF) and 7ºC (45ºF).

More about Denver

Explore more of United States

  • Denver has loads to offer, but there are so many other corners of United States you should also see. Around 105 kilometres south of Denver, a trip to Colorado Springs will keep you busy. Don't miss top attractions like US Northern Command (USNORTHCOM) / North American Aerospace Defence Command (NORAD) Headquarters, Cheyenne Mountain Air Force Station and National Strength and Conditioning Association (NSCA).

  • Around 161 kilometres south of Denver, Pueblo is another essential stop in United States. No visit is complete without checking out Pueblo Weisbrod Aircraft Museum, Rosemount Museum and Pueblo Zoo.

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