Cheap Flights from San Antonio, TX to Denver, CO from $109

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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 $109, 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: $109 (one-way), $187 (round-trip).

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Best Flights from San Antonio to Denver Today

Take a look at the list of non stop flights and flights with layovers from San Antonio to Denver with the lowest price of $109. The fastest direct flight takes 2h 17m and the fastest connecting – 4h 42m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $109 Find flight	05:15 San Antonio San Antonio	06:34 Denver Denver International	2h 19m	United Airlines	UA1399
from $109 Find flight	16:36 San Antonio San Antonio	18:08 Denver Denver International	2h 32m	United Airlines	UA624
from $120 Find flight	08:55 San Antonio San Antonio	10:12 Denver Denver International	2h 17m	United Airlines	UA2082
from $151 Find flight	13:43 San Antonio San Antonio	15:00 Denver Denver International	2h 17m	United Airlines	UA1299
from $180 Find flight	17:56 San Antonio San Antonio	23:38 Denver Denver International	6h 42m layover 2h 55m - Houston	United Airlines	UA2170 UA1338
from $194 Find flight	12:13 San Antonio San Antonio	16:40 Denver Denver International	5h 27m layover 1h 29m - Houston	United Airlines	UA6104 UA241
from $194 Find flight	09:56 San Antonio San Antonio	16:40 Denver Denver International	7h 44m layover 3h 48m - Houston	United Airlines	UA1798 UA241
from $207 Find flight	16:17 San Antonio San Antonio	19:59 Denver Denver International	4h 42m layover 0h 40m - Houston	United Airlines	UA6153 UA1654
from $207 Find flight	05:30 San Antonio San Antonio	11:50 Denver Denver International	7h 20m layover 3h 39m - Houston	United Airlines	UA469 UA2723
from $209 Find flight	05:30 San Antonio San Antonio	09:55 Denver Denver International	5h 25m layover 1h 49m - Houston	United Airlines	UA469 UA2714
from $235 Find flight	05:30 San Antonio San Antonio	12:52 Denver Denver International	8h 22m layover 4h 40m - Houston	United Airlines	UA469 UA434
from $241 Find flight	07:30 San Antonio San Antonio	11:50 Denver Denver International	5h 20m layover 1h 39m - Houston	United Airlines	UA1486 UA2723
from $241 Find flight	17:20 San Antonio San Antonio	23:22 Denver Denver International	7h 2m layover 1h 7m - Chicago	United Airlines	UA5869 UA1748
from $241 Find flight	12:55 San Antonio San Antonio	20:36 Denver Denver International	8h 41m layover 2h 42m - Chicago	United Airlines	UA1905 UA767
from $254 Find flight	06:45 San Antonio San Antonio	14:46 Denver Denver International	9h 1m layover 3h 20m - Chicago	United Airlines	UA2629 UA622
from $259 Find flight	05:30 San Antonio San Antonio	18:08 Denver Denver International	13h 38m layover 3h 9m - Houston 3h 17m - Los Angeles	United Airlines	UA469 UA469 UA1294

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on September 01, 2025

Flight Schedule San Antonio (Texas) to Denver (Colorado)

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	Flight Details	Flight Duration	Price
05:15 — 06:34	05:15 — 06:34 UA1399 United Airlines San Antonio — Denver	2h 19m	Find flight from$109
08:55 — 10:12	08:55 — 10:12 UA2082 United Airlines San Antonio — Denver	2h 17m	Find flight from$120
13:43 — 15:00	13:43 — 15:00 UA1299 United Airlines San Antonio — Denver	2h 17m	Find flight from$151
16:36 — 18:08	16:36 — 18:08 UA624 United Airlines San Antonio — Denver	2h 32m	Find flight from$109
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$207
06:00 — 12:14	06:00 — 07:42 UA784 United Airlines San Antonio — San Francisco 53m stop 08:35 — 12:14 UA2348 United Airlines San Francisco — Denver	7h 14m including layover	Find flight from$989
06:45 — 14:46	06:45 — 09:44 UA2629 United Airlines San Antonio — Chicago 3h 20m stop 13:04 — 14:46 UA622 United Airlines Chicago — Denver	9h 1m including layover	Find flight from$254
07:00 — 23:59	07:00 — 09:24 AS495 Alaska Airlines San Antonio — Seattle 10h 53m stop 20:17 — 23:59 AS642 Alaska Airlines Seattle — Denver	17h 59m including layover	Find flight from$283
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$241
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$194
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$194
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$241
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$207
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$241
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$180
19:37 — 11:53 +1 day	19:28 — 21:59 HA6517 Hawaiian Airlines San Antonio — Seattle 10h 13m stop 08:18 — 12:00 HA6653 Hawaiian Airlines Seattle — Denver	17h 16m including layover	Find flight from$317
19:37 — 16:54 +1 day	19:37 — 21:53 AS494 Alaska Airlines San Antonio — Seattle 15h 20m stop 13:13 — 16:54 AS620 Alaska Airlines Seattle — Denver	22h 17m including layover	Find flight from$325
14:11 — 08:49 +1 day	14:11 — 15:31 NK1274 Spirit Airlines San Antonio — Los Angeles 8h 24m stop 23:55 — 05:36 SY430 Sun Country Airlines Los Angeles — Minneapolis 2h stop 07:36 — 08:49 SY651 Sun Country Airlines Minneapolis — Denver	19h 38m including layover	Find flight from$536
14:11 — 20:56 +1 day	14:11 — 15:31 NK1274 Spirit Airlines San Antonio — Los Angeles 20h 44m stop 12:15 — 17:46 SY424 Sun Country Airlines Los Angeles — Minneapolis 1h 59m stop 19:45 — 20:56 SY1609 Sun Country Airlines Minneapolis — Denver	31h 45m including layover	Find flight from$547

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times - local. Updated on September 1, 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 109 $), june (from 120 $), july (from 141 $).

The most expensive months are may (from 170 $), july (from 141 $), june (from 120 $).

What is the lowest airfare San Antonio to Denver?

The cheapest plane ticket found by our users is $109. 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

$109

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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 $ 283 . And the most expensive tickets are offered by United Airlines airline - from $ 989.

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 $109.

UA - United Airlines

from $109

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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 $180.

AS - Alaska Airlines

from $283

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F9 - Frontier Airlines

from $315

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HA - Hawaiian Airlines

from $315

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UA - United Airlines

from $180

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NK - Spirit Airlines

from $518

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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 $109
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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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Airplanes

There are flights to Denver from San Antonio by 5 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

Top Domestic Destinations from San Antonio

You may also consider searching for discounted plane tickets to some other popular places from San Antonio within United States.

San Antonio — Las Vegas

from $55

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San Antonio — Dallas

from $75

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San Antonio — New York

from $74

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San Antonio — Chicago

from $73

Find
San Antonio — Denver

from $80

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San Antonio — Seattle

from $67

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San Antonio — Houston

from $63

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San Antonio — Miami

from $70

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San Antonio — Los Angeles

from $57

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San Antonio — Atlanta

from $60

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Top International Destinations from San Antonio

Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.

San Antonio — Cancun

from $79

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San Antonio — Mexico City

from $73

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San Antonio — Guadalajara

from $65

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San Antonio — Toronto

from $61

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San Antonio — Vancouver

from $75

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San Antonio — Puerto Vallarta

from $54

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San Antonio — San Juan

from $76

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How to book a plane 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.
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