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Cheap flights from Denver to San Antonio from $68

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
2:39 pm - 5:59 pmDEN  Denver Intl-SAT San Antonio
2h 20mnonstop
Frontier Logo
8:41 pm - 10:10 pmSAT  San Antonio-DEN Denver Intl
2h 29mnonstop
$153Frontier
Tue, Dec 1 - Thu, Dec 3
Frontier Logo
4:37 pm - 7:56 pmDEN  Denver Intl-SAT San Antonio
2h 19mnonstop
Frontier Logo
6:47 pm - 8:09 pmSAT  San Antonio-DEN Denver Intl
2h 22mnonstop
$156Frontier
Fri, Dec 4 - Tue, Dec 8
Frontier Logo
2:52 pm - 6:01 pmDEN  Denver Intl-SAT San Antonio
2h 09mnonstop
Frontier Logo
8:30 pm - 9:53 pmSAT  San Antonio-DEN Denver Intl
2h 23mnonstop
$156Frontier
Wed, Dec 9 - Wed, Dec 23
United Airlines Logo
5:25 pm - 8:34 pmDEN  Denver Intl-SAT San Antonio
2h 09mnonstop
United Airlines Logo
4:57 pm - 6:19 pmSAT  San Antonio-DEN Denver Intl
2h 22mnonstop
$289United Airlines
Tue, Dec 8 - Tue, Dec 15
United Airlines Logo
9:44 am - 12:59 pmDEN  Denver Intl-SAT San Antonio
2h 15mnonstop
United Airlines Logo
7:45 pm - 11:28 pmSAT  San Antonio-DEN Denver Intl
4h 43m1 stop Houston George Bush Intcntl
$289United Airlines
Sat, Feb 13 - Tue, Feb 16
Southwest Logo
10:55 am - 2:05 pmDEN  Denver Intl-SAT San Antonio
2h 10mnonstop
Southwest Logo
6:15 pm - 7:30 pmSAT  San Antonio-DEN Denver Intl
2h 15mnonstop
$289Southwest
Wed, Dec 2 - Wed, Dec 2
Southwest Logo
6:15 am - 12:55 pmDEN  Denver Intl-SAT San Antonio
5h 40m1 stop Las Vegas Harry Reid Intl
Southwest Logo
5:55 pm - 7:25 pmSAT  San Antonio-DEN Denver Intl
2h 30mnonstop
$289Southwest
Tue, Feb 9 - Wed, Mar 3
Southwest Logo
2:15 pm - 10:00 pmDEN  Denver Intl-SAT San Antonio
6h 45m2 stops Las Vegas Harry Reid Intl Phoenix Sky Harbor Intl
Southwest Logo
6:15 am - 7:40 amSAT  San Antonio-DEN Denver Intl
2h 25mnonstop
$294Southwest
Tue, Feb 9 - Wed, Mar 3
American Airlines Logo
1:15 pm - 6:28 pmDEN  Denver Intl-SAT San Antonio
4h 13m1 stop Dallas/Fort Worth
American Airlines Logo
7:17 pm - 10:56 pmSAT  San Antonio-DEN Denver Intl
4h 39m1 stop Dallas/Fort Worth
$299American Airlines
Sat, Dec 5 - Sat, Dec 12
American Airlines Logo
6:15 am - 12:09 pmDEN  Denver Intl-SAT San Antonio
4h 54m1 stop Dallas/Fort Worth
American Airlines Logo
6:00 am - 12:21 pmSAT  San Antonio-DEN Denver Intl
7h 21m1 stop Dallas/Fort Worth
$299American Airlines
Wed, Dec 30 - Tue, Jan 5

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Frontier flights from Denver to San Antonio

Our best Frontier deals on Denver to San Antonio flight tickets
Frontier
Dec 1
DEN2:39 pmDenver Intl
2h 20m
SAT5:59 pmSan Antonio
Dec 3
SAT8:41 pmSan Antonio
2h 29m
DEN10:10 pmDenver Intl
$153
Frontier
Dec 4
DEN4:37 pmDenver Intl
2h 19m
SAT7:56 pmSan Antonio
Dec 8
SAT6:47 pmSan Antonio
2h 22m
DEN8:09 pmDenver Intl
$156
Frontier
Dec 12
DEN2:52 pmDenver Intl
2h 09m
SAT6:01 pmSan Antonio
Dec 14
SAT8:47 pmSan Antonio
2h 23m
DEN10:10 pmDenver Intl
$158

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

Tue 12/1

2:39 pm-5:59 pm

Nonstop2h 20m

San Antonio

Thu 12/3

8:41 pm-10:10 pm

Nonstop2h 29m

$153

DenverSan Antonio

DEN Denver Intl - SAT San Antonio

DENSAT

Denver Intl

Fri 12/4

4:37 pm-7:56 pm

Nonstop2h 19m

San Antonio

Tue 12/8

6:47 pm-8:09 pm

Nonstop2h 22m

$156

DenverSan Antonio

DEN Denver Intl - SAT San Antonio

DENSAT

Denver Intl

Wed 12/9

2:52 pm-6:01 pm

Nonstop2h 09m

San Antonio

Wed 12/23

8:30 pm-9:53 pm

Nonstop2h 23m

$156

DenverSan Antonio

DEN Denver Intl - SAT San Antonio

DENSAT

Denver Intl

Tue 12/8

5:25 pm-8:34 pm

Nonstop2h 09m

San Antonio

Tue 12/15

4:57 pm-6:19 pm

Nonstop2h 22m

$289

DenverSan Antonio

DEN Denver Intl - SAT San Antonio

DENSAT

Denver Intl

Sat 2/13

9:44 am-12:59 pm

Nonstop2h 15m

San Antonio

Tue 2/16

7:45 pm-11:28 pm

1 stop4h 43m

$289
Quickest round-trip

DenverSan Antonio

DEN Denver Intl - SAT San Antonio

DENSAT

Denver Intl

Wed 12/2

10:55 am-2:05 pm

Nonstop2h 10m

San Antonio

Wed 12/2

6:15 pm-7:30 pm

Nonstop2h 15m

$289

DenverSan Antonio

DEN Denver Intl - SAT San Antonio

DENSAT

Denver Intl

Tue 2/9

6:15 am-12:55 pm

1 stop5h 40m

San Antonio

Wed 3/3

5:55 pm-7:25 pm

Nonstop2h 30m

$289

DenverSan Antonio

DEN Denver Intl - SAT San Antonio

DENSAT

Denver Intl

Tue 2/9

2:15 pm-10:00 pm

2 stops6h 45m

San Antonio

Wed 3/3

6:15 am-7:40 am

Nonstop2h 25m

$294

DenverSan Antonio

DEN Denver Intl - SAT San Antonio

DENSAT

Denver Intl

Sat 12/5

1:15 pm-6:28 pm

1 stop4h 13m

San Antonio

Sat 12/12

7:17 pm-10:56 pm

1 stop4h 39m

$299

DenverSan Antonio

DEN Denver Intl - SAT San Antonio

DENSAT

Denver Intl

Wed 12/30

6:15 am-12:09 pm

1 stop4h 54m

San Antonio

Tue 1/5

6:00 am-12:21 pm

1 stop7h 21m

$299

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 $180 to $332.
The lowest price recently found on this route was $153.

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 $225.

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 $252. 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 $332.

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 $207. 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 $332. 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 $276 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 November 2026, prices for Denver to San Antonio flights are approximately 40% 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

$68

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 $68. The best round-trip flight deal from Denver to San Antonio found on momondo in the last 72 hours is $153.
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 $73Free CancellationRating
5.5
2,504 reviews
Search Frontier flights
United AirlinesPriceFrom $166Free CancellationRating
7.3
10,487 reviews
Search United Airlines flights
SouthwestPriceFrom $197Free CancellationRating
8.0
4,223 reviews
Search Southwest flights

  • Southwest Flights From Denver to San Antonio

    Southwest flies from Denver to San Antonio around 13 times per week, with 4,220 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 $370 for Southwest flights on this route.

  • United Airlines Flights From Denver to San Antonio

    Across 10,486 United Airlines reviews on momondo, the average score is 7.3/10. United Airlines flies from Denver to San Antonio about 11 times each week, with ticket deals ranging from $166 to $381. 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.

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