United Airlines Denver to San Antonio Flights

Cheapflightsplus.com will find cheap United Airlines flights from Denver to San Antonio. Compare airline ticket prices and book air tickets starting from $170 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of United Airlines, arrivals and departure details below.

Find Cheap Airfare Denver (CO) — San Antonio (TX) by United 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 february: one-way - $170, two-way – $292.
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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
11:45 am — 7:39 pm
11:45 am — 3:15 pm UA350 United Airlines
Denver — Houston
3h 12m stop
6:27 pm — 7:39 pm UA1477 United Airlines
Houston — San Antonio
6h 54m
including layover
Find flight
from$342
11:45 am — 5:43 pm
11:45 am — 3:15 pm UA350 United Airlines
Denver — Houston
1h 15m stop
4:30 pm — 5:43 pm UA6135 United Airlines
Houston — San Antonio
4h 58m
including layover
Find flight
from$495
11:59 pm — 8:26 pm
+1 day
11:59 pm — 5:16 am UA1924 United Airlines
Denver — Washington D.C.
12h 16m stop
5:32 pm — 8:26 pm UA1869 United Airlines
Washington D.C. — San Antonio
19h 27m
including layover
Find flight
from$326
11:59 pm — 11:28 am
+1 day
11:59 pm — 5:16 am UA1924 United Airlines
Denver — Washington D.C.
3h 6m stop
8:22 am — 11:28 am UA6069 United Airlines
Washington D.C. — San Antonio
10h 29m
including layover
Find flight
from$341
1:55 pm — 9:37 pm
1:55 pm — 5:25 pm UA316 United Airlines
Denver — Houston
3h stop
8:25 pm — 9:37 pm UA2338 United Airlines
Houston — San Antonio
6h 42m
including layover
Find flight
from$224
1:55 pm — 7:39 pm
1:55 pm — 5:25 pm UA316 United Airlines
Denver — Houston
1h 2m stop
6:27 pm — 7:39 pm UA1477 United Airlines
Houston — San Antonio
4h 44m
including layover
Find flight
from$299
3:40 pm — 9:37 pm
3:40 pm — 7:10 pm UA489 United Airlines
Denver — Houston
1h 15m stop
8:25 pm — 9:37 pm UA2338 United Airlines
Houston — San Antonio
4h 57m
including layover
Find flight
from$224
3:40 pm — 11:15 pm
3:40 pm — 7:10 pm UA489 United Airlines
Denver — Houston
2h 58m stop
10:08 pm — 11:15 pm UA2142 United Airlines
Houston — San Antonio
6h 35m
including layover
Find flight
from$224
5:00 am — 11:27 am
5:00 am — 8:31 am UA320 United Airlines
Denver — Houston
1h 44m stop
10:15 am — 11:27 am UA2337 United Airlines
Houston — San Antonio
5h 27m
including layover
Find flight
from$192
5:00 am — 1:27 pm
5:00 am — 8:31 am UA320 United Airlines
Denver — Houston
3h 44m stop
12:15 pm — 1:27 pm UA2378 United Airlines
Houston — San Antonio
7h 27m
including layover
Find flight
from$224
5:00 am — 9:37 pm
5:00 am — 8:31 am UA320 United Airlines
Denver — Houston
11h 54m stop
8:25 pm — 9:37 pm UA2338 United Airlines
Houston — San Antonio
15h 37m
including layover
Find flight
from$342
5:00 am — 11:15 pm
5:00 am — 8:31 am UA320 United Airlines
Denver — Houston
13h 37m stop
10:08 pm — 11:15 pm UA2142 United Airlines
Houston — San Antonio
17h 15m
including layover
Find flight
from$342
5:20 pm — 11:15 pm
5:20 pm — 8:50 pm UA726 United Airlines
Denver — Houston
1h 18m stop
10:08 pm — 11:15 pm UA2142 United Airlines
Houston — San Antonio
4h 55m
including layover
Find flight
from$170
5:45 pm — 11:15 pm
5:45 pm — 9:13 pm UA1894 United Airlines
Denver — Houston
55m stop
10:08 pm — 11:15 pm UA2142 United Airlines
Houston — San Antonio
4h 30m
including layover
Find flight
from$170
7:45 am — 1:27 pm
7:45 am — 11:15 am UA1720 United Airlines
Denver — Houston
1h stop
12:15 pm — 1:27 pm UA2378 United Airlines
Houston — San Antonio
4h 42m
including layover
Find flight
from$342
*Departure and arrival times are local. Last updated on 02/16/2025

Flight Information

There are 16 flights by United Airlines from Denver to San Antonio every week with departures from Denver International and Arapahoe Co. All flights arrive at San Antonio, Kelly AFB, Stinson Municipal, Randolph AFB, Martindale AAF.

Departures start from 11:45 am to 7:45 am. Nonstop flight is 4h 30m. The time difference between Denver and San Antonio is 1h.

  • The fastest flight 4h 30m
  • Average flight time 6h 35m
  • The earliest flight 11:45 am
  • The latest flight 7:45 am
  • Distance 796 ml

The cheapest months for traveling to San Antonio are february (from 170 $).

The cheapest flight by United Airlines that our users were able to find is $170. This airfare is economy class on one-way UA726 flight for February 21, 2025 leaving Denver International in Denver at 5:20 pm, it includes all taxes and additional fees.

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Other Popular Airlines on the Route

Besides United Airlines there are other 4 airline carriers between Denver and San Antonio. Please review schedules and prices from the most popular airlines to find the best airfare deals from Denver to San Antonio.

Nonstop flights

There are 1 direct flights every day from Denver. 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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