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Cheap flights from Denver to San Antonio from $69

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Denver to San Antonio

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
4:06 pm - 7:25 pmDEN  Denver Intl-SAT San Antonio
2h 19mnonstop
Frontier Logo
8:20 pm - 9:49 pmSAT  San Antonio-DEN Denver Intl
2h 29mnonstop
$88Frontier
Thu, Nov 5 - Mon, Nov 9
Frontier Logo
4:19 pm - 7:26 pmDEN  Denver Intl-SAT San Antonio
2h 07mnonstop
Frontier Logo
8:21 pm - 9:49 pmSAT  San Antonio-DEN Denver Intl
2h 28mnonstop
$150Frontier
Sat, Oct 10 - Mon, Oct 12
Frontier Logo
7:50 am - 11:05 amDEN  Denver Intl-SAT San Antonio
2h 15mnonstop
Frontier Logo
12:00 pm - 1:21 pmSAT  San Antonio-DEN Denver Intl
2h 21mnonstop
$150Frontier
Thu, Dec 3 - Sun, Dec 6
Southwest Logo
2:10 pm - 5:15 pmDEN  Denver Intl-SAT San Antonio
2h 05mnonstop
Southwest Logo
6:15 pm - 7:30 pmSAT  San Antonio-DEN Denver Intl
2h 15mnonstop
$229Southwest
Wed, Oct 21 - Wed, Oct 21
Southwest Logo
2:10 pm - 5:15 pmDEN  Denver Intl-SAT San Antonio
2h 05mnonstop
Southwest Logo
7:40 pm - 11:50 pmSAT  San Antonio-DEN Denver Intl
5h 10m1 stop Phoenix Sky Harbor Intl
$239Southwest
Wed, Oct 21 - Wed, Oct 21
Multiple Airlines Logo
12:18 pm - 11:58 amDEN  Denver Intl-SAT San Antonio
22h 40m1 stop Memphis
Multiple Airlines Logo
8:20 pm - 9:49 pmSAT  San Antonio-DEN Denver Intl
2h 29mnonstop
$244Multiple Airlines
Thu, Oct 1 - Tue, Oct 6
Southwest Logo
1:15 pm - 6:25 pmDEN  Denver Intl-SAT San Antonio
4h 10m1 stop Kansas City
Southwest Logo
7:40 pm - 11:50 pmSAT  San Antonio-DEN Denver Intl
5h 10m1 stop Phoenix Sky Harbor Intl
$244Southwest
Wed, Oct 21 - Wed, Oct 21
Delta Logo
12:59 am - 9:42 amDEN  Denver Intl-SAT San Antonio
7h 43m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:35 am - 11:56 amSAT  San Antonio-DEN Denver Intl
6h 21m1 stop Salt Lake City
$249Delta
Fri, Oct 16 - Tue, Oct 20
United Airlines Logo
10:00 am - 1:05 pmDEN  Denver Intl-SAT San Antonio
2h 05mnonstop
United Airlines Logo
8:55 am - 10:19 amSAT  San Antonio-DEN Denver Intl
2h 24mnonstop
$257United Airlines
Sat, Jan 16 - Wed, Jan 20
United Airlines Logo
10:00 am - 1:05 pmDEN  Denver Intl-SAT San Antonio
2h 05mnonstop
United Airlines Logo
8:55 am - 10:19 amSAT  San Antonio-DEN Denver Intl
2h 24mnonstop
$257United Airlines
Thu, Feb 18 - Tue, Mar 2

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Frontier flights from Denver to San Antonio

Our best Frontier deals on Denver to San Antonio flight tickets
Frontier
Nov 5
DEN4:06 pmDenver Intl
2h 19m
SAT7:25 pmSan Antonio
Nov 9
SAT8:20 pmSan Antonio
2h 29m
DEN9:49 pmDenver Intl
$88
Frontier
Oct 26
DEN4:19 pmDenver Intl
2h 07m
SAT7:26 pmSan Antonio
Nov 10
SAT10:29 pmSan Antonio
12h 19m
1 stop
DEN9:48 amDenver Intl
$149
Frontier
Oct 10
DEN4:19 pmDenver Intl
2h 07m
SAT7:26 pmSan Antonio
Oct 12
SAT8:21 pmSan Antonio
2h 28m
DEN9:49 pmDenver Intl
$150

momondo Fare Finder

 
Use the filters below to find and compare flights from Denver to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverSan Antonio

DEN Denver Intl - SAT San Antonio

DENSAT

Denver Intl

Thu 11/5

4:06 pm-7:25 pm

Nonstop2h 19m

San Antonio

Mon 11/9

8:20 pm-9:49 pm

Nonstop2h 29m

$88

DenverSan Antonio

DEN Denver Intl - SAT San Antonio

DENSAT

Denver Intl

Sat 10/10

4:19 pm-7:26 pm

Nonstop2h 07m

San Antonio

Mon 10/12

8:21 pm-9:49 pm

Nonstop2h 28m

$150

DenverSan Antonio

DEN Denver Intl - SAT San Antonio

DENSAT

Denver Intl

Thu 12/3

7:50 am-11:05 am

Nonstop2h 15m

San Antonio

Sun 12/6

12:00 pm-1:21 pm

Nonstop2h 21m

$150
Quickest round-trip

DenverSan Antonio

DEN Denver Intl - SAT San Antonio

DENSAT

Denver Intl

Wed 10/21

2:10 pm-5:15 pm

Nonstop2h 05m

San Antonio

Wed 10/21

6:15 pm-7:30 pm

Nonstop2h 15m

$229

DenverSan Antonio

DEN Denver Intl - SAT San Antonio

DENSAT

Denver Intl

Wed 10/21

2:10 pm-5:15 pm

Nonstop2h 05m

San Antonio

Wed 10/21

7:40 pm-11:50 pm

1 stop5h 10m

$239

DenverSan Antonio

DEN Denver Intl - SAT San Antonio

DENSAT

Denver Intl

Thu 10/1

12:18 pm-11:58 am

1 stop22h 40m

San Antonio

Tue 10/6

8:20 pm-9:49 pm

Nonstop2h 29m

$244

DenverSan Antonio

DEN Denver Intl - SAT San Antonio

DENSAT

Denver Intl

Wed 10/21

1:15 pm-6:25 pm

1 stop4h 10m

San Antonio

Wed 10/21

7:40 pm-11:50 pm

1 stop5h 10m

$244

DenverSan Antonio

DEN Denver Intl - SAT San Antonio

DENSAT

Denver Intl

Fri 10/16

12:59 am-9:42 am

1 stop7h 43m

San Antonio

Tue 10/20

6:35 am-11:56 am

1 stop6h 21m

$249

DenverSan Antonio

DEN Denver Intl - SAT San Antonio

DENSAT

Denver Intl

Sat 1/16

10:00 am-1:05 pm

Nonstop2h 05m

San Antonio

Wed 1/20

8:55 am-10:19 am

Nonstop2h 24m

$257

DenverSan Antonio

DEN Denver Intl - SAT San Antonio

DENSAT

Denver Intl

Thu 2/18

10:00 am-1:05 pm

Nonstop2h 05m

San Antonio

Tue 3/2

8:55 am-10:19 am

Nonstop2h 24m

$257

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Antonio from

How to get the cheapest flight ticket from Denver to San Antonio

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Denver and San Antonio?

Prices are currently low for flights on this route.

Typical prices usually range from $173 to $377.
The lowest price recently found on this route was $88.

What is the cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of January, then book flights to San Antonio from Denver during February instead. Flights to San Antonio in February, while not as cheap as those in January, still average around $219.

What is the cheapest day to depart on your flight to San Antonio?

The cheapest day to depart on your flight to San Antonio is on a Thursday when prices can be found for as low as $237. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Sunday is $334.

What is the cheapest time of day to depart on your flight to San Antonio?

According to our data, the cheapest time of day to fly to San Antonio is in the evening. momondo users have found flights departing from Denver to San Antonio in the evening for as low as $208. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to San Antonio are more costly at noon, with an average ticket price of $311. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Denver Intl to San Antonio flight route?

Fly from Denver Intl to San Antonio for the best Denver Intl - San Antonio flight prices

How far in advance should I book a flight from Denver to San Antonio?

You are more likely to see cheaper flights to San Antonio from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $268 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from Denver for as low as $206 on momondo.

What cabin class options are available on Denver to San Antonio flights?

There are 4 cabin classes available to choose from on Denver to San Antonio flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Denver to San Antonio flight prices changed over time?

As of September 2026, prices for Denver to San Antonio flights are approximately 41% more expensive when compared to flights at the same time last year.

When to book flights from Denver to San Antonio

Are you open to changing your travel dates? Check out the ideal times to fly from Denver to San Antonio according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Denver to San Antonio (DEN to SAT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Denver to San Antonio

Best Price Found

$69

Fastest flight time

2h 05m

Direct flights

Every day

Airports in San Antonio

1 airport
The best one-way flight to San Antonio from Denver in the past 72 hours is $69. The best round-trip flight deal from Denver to San Antonio found on momondo in the last 72 hours is $88.
The fastest flight from Denver to San Antonio takes 2h 05m
Direct flights go from Denver to San Antonio every day.
There is 1 airport in San Antonio. From Denver there are direct flights to San Antonio (SAT).
Search flight deals

Frequently asked questions about flying from Denver to San Antonio

  • How far is Denver Intl to San Antonio by plane?

    San Antonio is 801.5 mi away from Denver Intl. Typically, this will take 2h 05m by plane in normal conditions.

  • When did momondo last update prices for flights from Denver Intl Airport to San Antonio Airport?

    Prices for flights from Denver Intl Airport to San Antonio Airport were last updated today.

  • How many operators does momondo search for flights from Denver Intl Airport to San Antonio Airport?

  • How old do you have to be to fly from Denver Intl Airport to San Antonio Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Denver Intl Airport to San Antonio Airport.

  • What documentation or ID do you need to fly to San Antonio Airport?

    The required travel and health documents for your San Antonio Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Antonio Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Denver to San Antonio?

  • What is the most popular airline from Denver to San Antonio?

Best airlines flying from Denver to San Antonio

Compare and see reviews for airlines that fly from Denver to San Antonio with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $70Free CancellationRating
5.6
2,601 reviews
Search Frontier flights
United AirlinesPriceFrom $145Free CancellationRating
7.4
10,213 reviews
Search United Airlines flights
SouthwestPriceFrom $197Free CancellationRating
8.0
4,190 reviews
Search Southwest flights

  • Southwest Flights From Denver to San Antonio

    Southwest flies from Denver to San Antonio around 22 times per week, with 4,190 momondo users rating the airline 8.0/10. The cheapest Southwest deal from Denver to San Antonio in the last 72 hours was $197 (round-trip), much lower than the average airfare cost of $356 for Southwest flights on this route.

  • United Airlines Flights From Denver to San Antonio

    Across 10,213 United Airlines reviews on momondo, the average score is 7.4/10. United Airlines flies from Denver to San Antonio about 26 times each week, with ticket deals ranging from $145 to $344. Price data is based on momondo searches in the last 72 hours.

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville
Pleasanton
Boerne
Schertz

Why use momondo?

Why should I use momondo to find a flight deal from Denver to San Antonio?

Finding the right flight to San Antonio from Denver is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Antonio quick and easy, saving you time and money.

Can I find flights from Denver to San Antonio with flexible booking policies on momondo?

All flight searches from Denver to San Antonio on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Denver to San Antonio?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Antonio from Denver.

I’m not ready to book a flight from Denver to San Antonio right now. Can momondo alert me if prices change?

If you are simply researching potential flights to San Antonio, momondo offers a useful price alert feature which will track prices for flights to San Antonio from Denver and alert you when they change.

An easier way to manage your San Antonio trip

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