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Cheap flights from San Antonio to Denver from $28

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Antonio to Denver departing on 2/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from San Antonio to Denver

Cheap round-trip flights

These are some of the best round-trip flight deals from San Antonio to Denver that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from San Antonio to Denver.

Cheap last minute flights

Planning a quick getaway from San Antonio to Denver? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Denver, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from San Antonio to Denver

Find recent round-trip train or bus tickets from San Antonio to Denver.

All round-trip flight deals from San Antonio to Denver

The cheapest plane tickets from San Antonio to Denver found on KAYAK recently.
2:18 pm - 3:38 pmSAT-DEN
2h 20mnonstop
10:00 am - 1:18 pmDEN-SAT
2h 18mnonstop
$73Frontier
Find Deal
Sun, Feb 16 - Tue, Feb 25
2:18 pm - 3:38 pmSAT-DEN
2h 20mnonstop
10:00 am - 1:18 pmDEN-SAT
2h 18mnonstop
$74Frontier
Find Deal
Sun, Feb 16 - Tue, Feb 25
2:18 pm - 3:38 pmSAT-DEN
2h 20mnonstop
10:37 am - 1:55 pmDEN-SAT
2h 18mnonstop
$78Frontier
Find Deal
Tue, Feb 25 - Sun, Mar 9
4:50 pm - 6:14 pmSAT-DEN
2h 24mnonstop
5:00 am - 11:27 amDEN-SAT
5h 27m1 stop
$187United Airlines
Find Deal
Wed, Feb 19 - Thu, Feb 27
2:31 pm - 7:21 pmSAT-DEN
5h 50m1 stop
4:54 pm - 12:27 amDEN-SAT
6h 33m1 stop
$197Delta
Find Deal
Sat, Mar 1 - Tue, Mar 4
4:30 pm - 11:00 pmSAT-DEN
7h 30m1 stop
7:00 am - 2:43 pmDEN-SAT
6h 43m1 stop
$207Delta
Find Deal
Wed, Feb 26 - Sat, Mar 1
6:57 pm - 11:59 pmSAT-DEN
6h 02m1 stop
9:54 am - 1:10 pmDEN-SAT
2h 16mnonstop
$227United Airlines
Find Deal
Wed, Feb 26 - Wed, Mar 5
12:26 pm - 5:47 pmSAT-DEN
6h 21m1 stop
4:47 pm - 9:58 pmDEN-SAT
4h 11m1 stop
$228American Airlines
Find Deal
Sat, Feb 8 - Sat, Feb 15
1:00 pm - 4:35 pmSAT-DEN
4h 35m1 stop
8:05 am - 3:35 pmDEN-SAT
6h 30m2 stops
$282Southwest
Find Deal
Sat, Mar 1 - Tue, Mar 4
8:45 pm - 12:05 amSAT-DEN
4h 20m1 stop
5:55 am - 1:00 pmDEN-SAT
6h 05m1 stop
$287Southwest
Find Deal
Sun, Feb 16 - Sun, Feb 23
2:18 pm - 3:38 pmSAT-DEN
2h 20mnonstop
$28Frontier
Find Deal
Tue, Feb 25
2:18 pm - 3:38 pmSAT-DEN
2h 20mnonstop
$31Frontier
Find Deal
Tue, Feb 18
7:15 pm - 8:35 pmSAT-DEN
2h 20mnonstop
$79Southwest
Find Deal
Sat, Feb 15
5:57 pm - 11:59 pmSAT-DEN
7h 02m1 stop
$89United Airlines
Find Deal
Sat, Feb 15
7:20 pm - 8:45 pmSAT-DEN
2h 25mnonstop
$99Southwest
Find Deal
Wed, Apr 16
6:24 pm - 10:09 pmSAT-DEN
4h 45m1 stop
$100American Airlines
Find Deal
Tue, Feb 18
2:31 pm - 7:21 pmSAT-DEN
5h 50m1 stop
$104Delta
Find Deal
Sat, Feb 15
6:55 pm - 11:59 pmSAT-DEN
6h 04m1 stop
$109United Airlines
Find Deal
Tue, Mar 18
7:45 am - 1:07 pmSAT-DEN
6h 22m1 stop
$114Delta
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Thu, Feb 13
5:45 am - 9:31 amSAT-DEN
4h 46m1 stop
$134American Airlines
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Thu, Feb 6
8:35 pm - 9:27 amSAT-DEN
13h 52m1 stop
8:43 am - 12:02 pmDEN-SAT
2h 19mnonstop
$236Frontier
Find Deal
Mon, Jan 20 - Mon, Jan 27
1:02 pm - 2:25 pmSAT-DEN
2h 23mnonstop
8:43 am - 12:02 pmDEN-SAT
2h 19mnonstop
$242Frontier
Find Deal
Sun, Jan 19 - Sun, Jan 26
8:20 pm - 11:21 pmSAT-DEN
28h 01m1 stop
8:43 am - 12:02 pmDEN-SAT
2h 19mnonstop
$250Frontier
Find Deal
Sun, Jan 19 - Sun, Jan 26
9:40 am - 9:51 amSAT-DEN
25h 11m2 stops
1:26 pm - 4:40 pmDEN-SAT
2h 14mnonstop
$419United Airlines
Find Deal
Sat, Jan 18 - Sun, Jan 19
1:52 pm - 1:30 pmSAT-DEN
24h 38m3 stops
5:50 pm - 4:33 amDEN-SAT
33h 43m3 stops
Mon, Jan 20 - Wed, Jan 22
1:52 pm - 1:30 pmSAT-DEN
24h 38m3 stops
5:45 pm - 4:33 amDEN-SAT
33h 48m3 stops
Mon, Jan 20 - Sat, Jan 25
8:45 am - 10:05 amSAT-DEN
2h 20mnonstop
8:25 am - 11:40 amDEN-SAT
2h 15mnonstop
$612Southwest
Find Deal
Tue, Jan 21 - Sat, Jan 25
3:30 pm - 6:25 pmSAT-DEN
3h 55m1 stop
8:25 am - 11:40 amDEN-SAT
2h 15mnonstop
$618Southwest
Find Deal
Tue, Jan 21 - Sat, Jan 25
2:30 pm - 8:25 pmSAT-DEN
6h 55m1 stop
3:30 pm - 12:27 amDEN-SAT
7h 57m1 stop
$647Delta
Find Deal
Tue, Jan 21 - Tue, Jan 28
2:21 pm - 6:09 pmSAT-DEN
4h 48m1 stop
5:43 pm - 11:07 amDEN-SAT
16h 24m2 stops
$757United Airlines
Find Deal
Tue, Jan 21 - Tue, Jan 28
2:18 pm - 3:38 pmSAT-DEN
2h 20mnonstop
10:37 am - 1:55 pmDEN-SAT
2h 18mnonstop
$78Frontier
Find Deal
Tue, Feb 25 - Sun, Mar 9
1:02 pm - 2:25 pmSAT-DEN
2h 23mnonstop
8:43 am - 12:02 pmDEN-SAT
2h 19mnonstop
$80Frontier
Find Deal
Mon, Feb 3 - Thu, Feb 6
2:18 pm - 3:38 pmSAT-DEN
2h 20mnonstop
10:00 am - 1:18 pmDEN-SAT
2h 18mnonstop
$87Frontier
Find Deal
Sat, Mar 1 - Sun, Mar 2
2:18 pm - 3:38 pmSAT-DEN
2h 20mnonstop
10:00 am - 1:18 pmDEN-SAT
2h 18mnonstop
$88Frontier
Find Deal
Sat, Mar 1 - Sun, Mar 2
7:25 pm - 8:40 pmSAT-DEN
2h 15mnonstop
8:30 am - 11:40 amDEN-SAT
2h 10mnonstop
$197Southwest
Find Deal
Wed, Apr 2 - Tue, Apr 8
7:15 pm - 8:35 pmSAT-DEN
2h 20mnonstop
11:35 am - 2:50 pmDEN-SAT
2h 15mnonstop
$207Southwest
Find Deal
Sat, Feb 22 - Wed, Feb 26
4:50 pm - 6:14 pmSAT-DEN
2h 24mnonstop
9:54 am - 1:10 pmDEN-SAT
2h 16mnonstop
$217United Airlines
Find Deal
Sat, Mar 1 - Wed, Mar 5
9:00 am - 10:23 amSAT-DEN
2h 23mnonstop
5:50 pm - 9:04 pmDEN-SAT
2h 14mnonstop
$237United Airlines
Find Deal
Tue, Mar 4 - Tue, Mar 4
1:18 pm - 2:42 pmSAT-DEN
2h 24mnonstop
9:54 am - 1:10 pmDEN-SAT
2h 16mnonstop
$257United Airlines
Find Deal
Thu, Feb 27 - Wed, Mar 5
8:40 am - 9:55 amSAT-DEN
2h 15mnonstop
9:45 am - 12:55 pmDEN-SAT
2h 10mnonstop
$297Southwest
Find Deal
Tue, Apr 22 - Fri, Apr 25

Frontier flights from San Antonio to Denver

Our best Frontier deals on San Antonio to Denver flight tickets
Frontier
Feb 16
SAT2:18 pmSan Antonio
2h 20m
DEN3:38 pmDenver Intl
Feb 25
DEN10:00 amDenver Intl
2h 18m
SAT1:18 pmSan Antonio
Frontier
Feb 16
SAT2:18 pmSan Antonio
2h 20m
DEN3:38 pmDenver Intl
Feb 25
DEN10:00 amDenver Intl
2h 18m
SAT1:18 pmSan Antonio
Frontier
Jan 24
SAT1:02 pmSan Antonio
2h 23m
DEN2:25 pmDenver Intl
Jan 31
DEN8:43 amDenver Intl
2h 19m
SAT12:02 pmSan Antonio

United Airlines flights from San Antonio to Denver

Our best United Airlines deals on San Antonio to Denver flight tickets
United Airlines
Feb 19
SAT4:50 pmSan Antonio
2h 24m
DEN6:14 pmDenver Intl
Feb 27
DEN5:00 amDenver Intl
5h 27m
1 stop
SAT11:27 amSan Antonio
United Airlines
Feb 26
SAT6:57 pmSan Antonio
6h 02m
1 stop
DEN11:59 pmDenver Intl
Mar 5
DEN9:54 amDenver Intl
2h 16m
SAT1:10 pmSan Antonio
United Airlines
Mar 1
SAT4:50 pmSan Antonio
2h 24m
DEN6:14 pmDenver Intl
Mar 2
DEN5:00 amDenver Intl
7h 27m
1 stop
SAT1:27 pmSan Antonio

See travel insights to Denver from

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

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 cheapest month to fly to Denver?

The cheapest month to fly to Denver from San Antonio is in August. Flight prices, which tend to average around $125, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in August, then you should wait until September to fly from San Antonio, when ticket prices are also cheap, with an average price of $148.

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Saturday when prices can be found for as low as $128. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $251.

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

The cheapest time of day to fly to Denver is in the evening when flights can be purchased for as low as $108. Flights at noon are often more expensive with an average ticket price of $268.

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

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

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

You are more likely to see cheaper flights to Denver from San Antonio when booking 9 weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $176 when searching 9 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from San Antonio for as low as $103 on momondo.

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

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

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

As of January 2025, prices for San Antonio to Denver flights are approximately 69% more expensive when compared to flights at the same time last year.

When to book flights from San Antonio to Denver

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

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

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

Best Price Found

$28

Fastest flight time

2h 15m

Direct flights

Every day

Airports in Denver

1 airport
The best one-way flight to Denver from San Antonio in the past 72 hours is $28. The best round-trip flight deal from San Antonio to Denver found on momondo in the last 72 hours is $73.
The fastest flight from San Antonio to Denver takes 2h 15m
Direct flights go from San Antonio to Denver every day.
There is 1 airport near Denver: Denver Intl (DEN)

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

    The distance between San Antonio and Denver Intl is about 801.5 mi. A reasonable flight in good conditions will take 2h 20m.

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

    Prices for flights from San Antonio Airport to Denver Intl Airport are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Antonio Airport to Denver Intl Airport.

  • What documentation or ID do you need to fly to Denver Intl Airport?

    The required travel and health documents for your Denver Intl 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 Denver Intl 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 San Antonio to Denver?

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


Best airlines flying from San Antonio to Denver

Compare and see reviews for airlines that fly from San Antonio to Denver with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $40Free CancellationRating
6.0
3,435 reviews
Search Frontier flights
United AirlinesPriceFrom $149Free CancellationRating
7.4
8,964 reviews
Search United Airlines flights
American AirlinesPriceFrom $158Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $174Free CancellationRating
8.1
4,659 reviews
Search Southwest flights
DeltaPriceFrom $176Free CancellationRating
8.0
8,511 reviews
Search Delta flights
  • Southwest Flights From San Antonio to Denver

    Across 23 Southwest flights from San Antonio to Denver this week, the average price was $299, with the best Southwest deals starting from $174 round-trip. 4,659 users have rated Southwest on momondo, with an average score of 8.1/10.

  • United Airlines Flights From San Antonio to Denver

    $149 is the best United Airlines flight deal from San Antonio to Denver found on momondo over the last 72 hours. The average United Airlines ticket price found was closer to $299, however, with flight time and availability significantly affecting the price. United Airlines (7.4/10 from 8,965 user reviews) flies into Denver from San Antonio 18 times in an average week so prices can vary.


Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Estes Park
Breckenridge
Aurora
Fort Collins
Black Hawk
Lakewood
Keystone
Longmont
Boulder
Cripple Creek
Westminster
Greeley
Manitou Springs
Thornton
Sterling
Silverthorne
Frisco
Golden
Wheat Ridge
Winter Park

Why use momondo?

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

Finding the right flight to Denver from San Antonio 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 Denver quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for San Antonio to Denver flights to just show those with flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from San Antonio to Denver.

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

Of course. momondo tracks the price of San Antonio to Denver flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


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