Alaska Airlines San Antonio to Denver Flights

Cheapflightsplus.com will find cheap Alaska Airlines flights from San Antonio to Denver. Compare airline ticket prices and book air tickets starting from $259 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of Alaska Airlines, arrivals and departure details below.

Find Cheap Airfare San Antonio (TX) — Denver (CO) by Alaska Airlines

To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in january: one-way - $259, two-way – $444.
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Below is a detailed 2025 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.
Departure Arrival Flight Details Flight Time Price
3:03 pm — 11:15 pm
3:03 pm — 5:40 pm AS494 Alaska Airlines
San Antonio — Seattle
1h 58m stop
7:38 pm — 11:15 pm AS321 Alaska Airlines
Seattle — Denver
9h 12m
including layover
Find flight
from$259
3:03 pm — 3:49 pm
+1 day
3:03 pm — 5:40 pm AS494 Alaska Airlines
San Antonio — Seattle
18h 20m stop
12:00 pm — 3:49 pm AS602 Alaska Airlines
Seattle — Denver
25h 46m
including layover
Find flight
from$395
3:03 pm — 8:43 am
+1 day
3:03 pm — 5:40 pm AS494 Alaska Airlines
San Antonio — Seattle
11h 20m stop
5:00 am — 8:43 am UA2269 United Airlines
Seattle — Denver
18h 40m
including layover
Find flight
from$568
3:03 pm — 12:43 pm
+1 day
3:03 pm — 5:40 pm AS494 Alaska Airlines
San Antonio — Seattle
15h 20m stop
9:00 am — 12:43 pm UA1829 United Airlines
Seattle — Denver
22h 40m
including layover
Find flight
from$568
3:15 pm — 1:07 pm
+1 day
3:15 pm — 4:51 pm AS6545 Alaska Airlines
San Antonio — Los Angeles
3h 4m stop
7:55 pm — 10:27 pm AS1012 Alaska Airlines
Los Angeles — Portland
11h 8m stop
9:35 am — 1:07 pm AS336 Alaska Airlines
Portland — Denver
22h 52m
including layover
Find flight
from$319
3:15 pm — 11:07 am
+1 day
3:15 pm — 4:51 pm AS6545 Alaska Airlines
San Antonio — Los Angeles
3h 4m stop
7:55 pm — 10:52 pm AS1093 Alaska Airlines
Los Angeles — Seattle
8h 33m stop
7:25 am — 11:07 am AS682 Alaska Airlines
Seattle — Denver
20h 52m
including layover
Find flight
from$395
3:15 pm — 3:49 pm
+1 day
3:15 pm — 4:51 pm AS6545 Alaska Airlines
San Antonio — Los Angeles
3h 4m stop
7:55 pm — 10:52 pm AS1093 Alaska Airlines
Los Angeles — Seattle
13h 8m stop
12:00 pm — 3:49 pm AS602 Alaska Airlines
Seattle — Denver
25h 34m
including layover
Find flight
from$395
7:00 am — 8:54 pm
7:00 am — 9:34 am AS437 Alaska Airlines
San Antonio — Seattle
1h 59m stop
11:33 am — 12:34 pm AS1039 Alaska Airlines
Seattle — Portland
4h 37m stop
5:11 pm — 8:54 pm AS420 Alaska Airlines
Portland — Denver
14h 54m
including layover
Find flight
from$365
7:22 pm — 9:41 am
+1 day
7:25 pm — 9:55 pm AS494 Alaska Airlines
San Antonio — Seattle
8h stop
6:06 am — 9:47 am AS682 Alaska Airlines
Seattle — Denver
15h 19m
including layover
Find flight
from$308
7:22 pm — 10:57 am
+1 day
7:25 pm — 10:00 pm AS494 Alaska Airlines
San Antonio — Seattle
59m stop
10:50 pm — 11:44 pm AS957 Alaska Airlines
Seattle — Portland
7h 29m stop
8:15 am — 11:49 am AS336 Alaska Airlines
Portland — Denver
16h 35m
including layover
Find flight
from$377
*Departure and arrival times are local. Last updated on 12/22/2024

Flight Information

There are 11 flights by Alaska Airlines from San Antonio to Denver every week with departures from San Antonio, Kelly AFB, Stinson Municipal, Randolph AFB, Martindale AAF. All flights arrive at Denver International and Arapahoe Co.

Departures start from 3:03 pm to 7:22 pm. Nonstop flight is 9h 12m. The time difference between San Antonio and Denver is 1h.

  • The fastest flight 9h 12m
  • Average flight time 19h 46m
  • The earliest flight 3:03 pm
  • The latest flight 7:22 pm
  • Distance 796 ml

The cheapest months for traveling to Denver are january (from 259 $), december (from 308 $), november (from 358 $).

The most expensive and popular months are february (from 395 $), november (from 358 $), december (from 308 $).

The cheapest flight by Alaska Airlines that our users were able to find is $259. This airfare is economy class on one-way AS494 flight for January 12, 2025 leaving San Antonio in San Antonio at 3:03 pm, it includes all taxes and additional fees.

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Other Popular Airlines on the Route

Besides Alaska Airlines there are other 6 airline carriers between San Antonio and Denver. Please review schedules and prices from the most popular airlines to find the best airfare deals from San Antonio to Denver.

Nonstop flights

There are 5 direct flights every day from San Antonio. Airlines and fares are below:

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Connecting Flights

List of flights with layovers (1 and more stops):

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How to book an air 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 airfare.
  • 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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