£157 Cheap Flights from San Antonio (SAT) to Denver (DEN)

View £157 flight on Mon, 15 Dec 2025Opens in a new window

Popular airlines from San Antonio International Airport (SAT) to Denver International Airport (DEN)

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Cheap Flights from San Antonio (SAT) to Denver (DEN)

Prices were available within the past 7 days and start at £157 for one-way flights and £402 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, 17 Dec - Wed, 24 Dec
SAT
San Antonio
DEN
Denver
£402 Return, found 15 hours ago
£402
Return
found 15 hours ago
Select Alaska Airlines flight, departing Wed, 17 Dec from San Antonio to Denver, returning Wed, 24 Dec, priced at £402 found 15 hours ago
Alaska Airlines
Fri, 12 Dec - Fri, 19 Dec
SAT
San Antonio
DEN
Denver
£403 Return, found 15 hours ago
£403
Return
found 15 hours ago
Select Alaska Airlines flight, departing Fri, 12 Dec from San Antonio to Denver, returning Fri, 19 Dec, priced at £403 found 15 hours ago
Alaska Airlines
Mon, 15 Dec - Mon, 22 Dec
SAT
San Antonio
DEN
Denver
£415 Return, found 15 hours ago
£415
Return
found 15 hours ago
Select Alaska Airlines flight, departing Mon, 15 Dec from San Antonio to Denver, returning Mon, 22 Dec, priced at £415 found 15 hours ago
Alaska Airlines
Wed, 17 Dec - Wed, 24 Dec
SAT
San Antonio
DEN
Denver
£427 Return, found 15 hours ago
£427
Return
found 15 hours ago
Select Alaska Airlines flight, departing Wed, 17 Dec from San Antonio to Denver, returning Wed, 24 Dec, priced at £427 found 15 hours ago
Alaska Airlines
Fri, 12 Dec - Fri, 19 Dec
SAT
San Antonio
DEN
Denver
£429 Return, found 15 hours ago
£429
Return
found 15 hours ago
Select Alaska Airlines flight, departing Fri, 12 Dec from San Antonio to Denver, returning Fri, 19 Dec, priced at £429 found 15 hours ago
Alaska Airlines
Fri, 24 Oct - Mon, 27 Oct
SAT
San Antonio
DEN
Denver
£429 Return, found 4 days ago
£429
Return
found 4 days ago
Select Alaska Airlines flight, departing Fri, 24 Oct from San Antonio to Denver, returning Mon, 27 Oct, priced at £429 found 4 days ago
Alaska Airlines
Wed, 17 Sep - Wed, 24 Sep
SAT
San Antonio
DEN
Denver
£438 Return, found 6 days ago
£438
Return
found 6 days ago
Select Alaska Airlines flight, departing Wed, 17 Sep from San Antonio to Denver, returning Wed, 24 Sep, priced at £438 found 6 days ago
Alaska Airlines
Wed, 17 Sep - Wed, 24 Sep
SAT
San Antonio
DEN
Denver
£450 Return, found 5 days ago
£450
Return
found 5 days ago
Select Alaska Airlines flight, departing Wed, 17 Sep from San Antonio to Denver, returning Wed, 24 Sep, priced at £450 found 5 days ago
Alaska Airlines
Fri, 12 Sep - Fri, 19 Sep
SAT
San Antonio
DEN
Denver
£453 Return, found 5 days ago
£453
Return
found 5 days ago
Select Alaska Airlines flight, departing Fri, 12 Sep from San Antonio to Denver, returning Fri, 19 Sep, priced at £453 found 5 days ago
Alaska Airlines
Wed, 17 Sep - Wed, 24 Sep
SAT
San Antonio
DEN
Denver
£455 Return, found 6 days ago
£455
Return
found 6 days ago
Select Alaska Airlines flight, departing Wed, 17 Sep from San Antonio to Denver, returning Wed, 24 Sep, priced at £455 found 6 days ago

Find the cheapest month to fly from San Antonio (SAT) to Denver (DEN)

October is typically the cheapest month to fly

From £50 - £103 per traveller.

Graph displaying average flight prices per month

Flight from San Antonio to Denver route information
Origin airport
San Antonio Intl.
Destination airport
Denver Intl.
Airlines serving
Alaska Airlines
Return price
£402
Distance
1271 km
Average flight time
2 hours 4 mins

Compare flights from San Antonio to Denver easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from San Antonio to Denver. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Denver Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from San Antonio Intl. to Denver Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from San Antonio Intl. (SAT) to Denver Intl. (DEN)

The easiest way to view the best deals on flights from San Antonio to Denver today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from San Antonio Intl. to Denver Intl. start at just £402 and range up to £455.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near San Antonio and Denver
  • booking your flight during December, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your San Antonio to Denver flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from San Antonio Intl. to Denver Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Frequently asked questions

How much is a flight from San Antonio Intl. Airport (SAT) to DEN?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price listed for a round-trip flight between San Antonio Intl. Airport (SAT) and Denver Airport was £402. Cheap fares don't wait forever, so book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SAT to Denver Airport?
We get that circumstances change unexpectedly, so we've made it as easy as possible for you to cancel your trip online. Just head to the Customer Service Portal and follow the instructions.
How do I find cheap flights from San Antonio Airport to DIA airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for San Antonio Airport to DEN flights, you'll see a "no change fees" filter for you to select.
How far is the flight from SAT to DEN?
That new movie you've been desperate to see will have to wait — the flight distance between San Antonio Airport (SAT) and Denver Intl. Airport (DEN) (DEN) is only 1,300 kilometres. The captain will be instructing you to buckle up for touchdown before you know it.
Which airlines fly direct from SAT to DIA airport?
Southwest Airlines (WN) is a popular choice. It offers 117 flights between SAT and Denver Airport each month. Offering 91 flights per month along this route, United Airlines (UA) is another good choice.
Are San Antonio Intl. Airport (SAT) to DEN flight tickets cheaper when they're purchased at the last minute?
Booking your trip from SAT to DIA airport last minute could be your ticket to a great deal. However, it could end up costing you a whole lot more! If you'd prefer to err on the side of caution, book well ahead of your departure date. In fact, Expedia has some of the best bargains up to a year in advance. If your preferred carrier hasn't released tickets yet, check back often as deals are updated on Expedia all the time.

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