Cheap Flights from San Antonio, TX to Denver, CO from $106

Return flight: Denver – San Antonio

On Cheapflightsplus.com you will find 4 direct and 42 connecting flights from San Antonio to Denver. You can compare airfare deals from 5 airlines and multiple travel sites from $106, book and save on cheap plane tickets and last minute offers. Also check out SAT-DEN flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip San Antonio to Denver Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $106 (one-way), $182 (round-trip).
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Full flight schedule will help you in detecting at what time planes fly from San Antonio to Denver. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
05:15 — 06:34
05:15 — 06:34 UA1399 United Airlines
San Antonio — Denver
2h 19m
Find flight
from$106
05:30 — 11:50
05:30 — 06:36 UA469 United Airlines
San Antonio — Houston
3h 39m stop
10:15 — 11:50 UA2723 United Airlines
Houston — Denver
7h 20m
including layover
Find flight
from$201
05:30 — 09:55
05:30 — 06:36 UA469 United Airlines
San Antonio — Houston
1h 49m stop
08:25 — 10:01 UA2714 United Airlines
Houston — Denver
5h 25m
including layover
Find flight
from$203
05:30 — 12:52
05:30 — 06:36 UA469 United Airlines
San Antonio — Houston
4h 40m stop
11:20 — 12:56 UA434 United Airlines
Houston — Denver
8h 22m
including layover
Find flight
from$228
07:30 — 11:50
07:43 — 08:49 UA1486 United Airlines
San Antonio — Houston
1h 39m stop
12:50 — 14:22 UA2723 United Airlines
Houston — Denver
5h 20m
including layover
Find flight
from$235
08:55 — 10:12
08:55 — 10:12 UA2082 United Airlines
San Antonio — Denver
2h 17m
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from$117
09:56 — 16:40
09:56 — 11:02 UA1798 United Airlines
San Antonio — Houston
3h 48m stop
14:50 — 16:40 UA241 United Airlines
Houston — Denver
7h 44m
including layover
Find flight
from$189
12:13 — 16:40
12:13 — 13:21 UA6104 United Airlines
San Antonio — Houston
1h 29m stop
14:50 — 16:40 UA241 United Airlines
Houston — Denver
5h 27m
including layover
Find flight
from$189
12:55 — 20:36
12:55 — 15:53 UA1905 United Airlines
San Antonio — Chicago
2h 42m stop
18:35 — 20:36 UA767 United Airlines
Chicago — Denver
8h 41m
including layover
Find flight
from$234
13:43 — 15:00
13:43 — 15:00 UA1299 United Airlines
San Antonio — Denver
2h 17m
Find flight
from$147
16:17 — 19:59
16:17 — 17:25 UA6153 United Airlines
San Antonio — Houston
40m stop
18:05 — 19:59 UA1654 United Airlines
Houston — Denver
4h 42m
including layover
Find flight
from$201
16:17 — 22:29
16:17 — 17:25 UA6153 United Airlines
San Antonio — Houston
3h 10m stop
20:35 — 22:29 UA2215 United Airlines
Houston — Denver
7h 12m
including layover
Find flight
from$201
16:36 — 18:08
16:36 — 18:08 UA624 United Airlines
San Antonio — Denver
2h 32m
Find flight
from$106
17:20 — 23:22
17:20 — 20:25 UA5869 United Airlines
San Antonio — Chicago
1h 7m stop
21:32 — 23:22 UA1748 United Airlines
Chicago — Denver
7h 2m
including layover
Find flight
from$235
17:56 — 23:38
18:01 — 19:07 UA2170 United Airlines
San Antonio — Houston
2h 55m stop
22:05 — 23:46 UA1338 United Airlines
Houston — Denver
6h 42m
including layover
Find flight
from$175
*Departure and arrival times - local. Updated on September 18, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from San Antonio to Denver depends on and how to choose the most interesting flight option for you.

Distance between San Antonio and Denver is 1281 miles. Time difference between the cities is 1h. Airplanes depart 05:15 to 19:37 from 5 San Antonio airports and arrive 05:15 to 19:37 to 2 Denver airports. Average flight time is 2h 18m.

  • The fastest flight 2h 17m
  • Average flight time 2h 18m
  • The earliest flight 05:15
  • The latest flight 19:37
  • Distance 796 ml

The cheapest months to travel to Denver are august (from 106 $), june (from 117 $), july (from 137 $).

The most expensive months are may (from 165 $), july (from 137 $), june (from 117 $).

What is the lowest airfare San Antonio to Denver?

The cheapest plane ticket found by our users is $106. This airfare is for economy class on one-way UA624 flight by United Airlines for July 13, 2025 which leaves San Antonio in San Antonio at 16:36 am and arrives at Denver Denver International at 18:08.

Economy class
$106
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Business class
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First class
?
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Popular Airlines on the Route

The flight San Antonio — Denver is served by 5 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 9 departures per week at the price of from $ 275 . And the most expensive tickets are offered by United Airlines airline - from $ 962.

Direct flights

There are 4 nonstop flights on the route. The fastest direct flight is UA2082 by United Airlines takes 2h 17m and the cheapest is UA624 by United Airlines for $106.

  • UA - United Airlines
    from $106
    Find
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Connecting Flights

There are 42 flights with layovers on the route. The fastest connecting flight is UA6153 by United Airlines takes 4h 42m and the cheapest is UA624 by United Airlines for $175.

  • AS - Alaska Airlines
    from $275
    Find
  • F9 - Frontier Airlines
    from $307
    Find
  • HA - Hawaiian Airlines
    from $306
    Find
  • UA - United Airlines
    from $175
    Find
  • NK - Spirit Airlines
    from $504
    Find
See more connecting flights

Airports

You can fly from San Antonio to Denver from 5 airports (Randolph AFB, Martindale AAF, San Antonio, Kelly AFB, Stinson Municipal).

San Antonio airports

  • Randolph AFB-RND
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  • Martindale AAF-MDA
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  • San Antonio-SAT
    from $106
    Find
  • Kelly AFB-SKF
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  • Stinson Municipal-SSF
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Denver airports

  • Denver International-DEN
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  • Arapahoe Co-APA
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How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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