Cheap Flights from Denver, CO to San Antonio, TX from $65

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On Cheapflightsplus.com you will find 12 direct and 315 connecting flights from Denver to San Antonio. You can compare airfare deals from 6 airlines and multiple travel sites from $65, book and save on cheap plane tickets and last minute offers. Also check out DEN-SAT flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Denver to San Antonio 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: $65 (one-way), $111 (round-trip).

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Best Flights from Denver to San Antonio Today

Take a look at the list of non stop flights and flights with layovers from Denver to San Antonio with the lowest price of $65. The fastest direct flight takes 2h 7m and the fastest connecting – 4h 9m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $65 Find flight	10:43 Denver Denver International	14:00 San Antonio San Antonio	2h 17m	Frontier Airlines	F92356
from $87 Find flight	16:17 Denver Denver International	19:31 San Antonio San Antonio	2h 14m	Frontier Airlines	F92098
from $112 Find flight	09:40 Denver Denver International	12:47 San Antonio San Antonio	2h 7m	United Airlines	UA1131
from $112 Find flight	20:43 Denver Denver International	23:59 San Antonio San Antonio	2h 16m	United Airlines	UA1801
from $134 Find flight	17:45 Denver Denver International	20:56 San Antonio San Antonio	2h 11m	United Airlines	UA1110
from $157 Find flight	13:41 Denver Denver International	16:51 San Antonio San Antonio	2h 10m	United Airlines	UA1022
from $182 Find flight	13:44 Denver Denver International	16:54 San Antonio San Antonio	2h 10m	United Airlines	UA1610
from $102 Find flight	00:23 Denver Denver International	09:30 San Antonio San Antonio	8h 7m layover 1h 30m - Orlando	Frontier Airlines	F91734 F91653
from $103 Find flight	00:59 Denver Denver International	11:42 San Antonio San Antonio	9h 43m layover 3h 55m - Atlanta	Frontier Airlines	F93294 F94809
from $108 Find flight	22:29 Denver Denver International	13:03+1 день San Antonio San Antonio	13h 34m layover 8h 39m - Las Vegas	Frontier Airlines	F9777 F93418
from $108 Find flight	20:24 Denver Denver International	13:23+1 день San Antonio San Antonio	15h 59m layover 11h 16m - Las Vegas	Frontier Airlines	F94611 F93418
from $109 Find flight	14:37 Denver Denver International	13:08+1 день San Antonio San Antonio	21h 31m layover 16h 35m - Las Vegas	Frontier Airlines	F92349 F93418
from $114 Find flight	17:46 Denver Denver International	13:23+1 день San Antonio San Antonio	18h 37m layover 13h 45m - Las Vegas	Frontier Airlines	F94967 F93418
from $114 Find flight	12:05 Denver Denver International	13:08+1 день San Antonio San Antonio	24h 3m layover 19h 13m - Las Vegas	Frontier Airlines	F91993 F93418
from $137 Find flight	09:13 Denver Denver International	19:31 San Antonio San Antonio	9h 18m layover 2h 27m - Orlando	Frontier Airlines	F93312 F91653
from $153 Find flight	17:59 Denver Denver International	09:47+1 день San Antonio San Antonio	14h 48m layover 10h 0m - Minneapolis	Sun Country Airlines	SY656 SY1835

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on July 31, 2025

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

Full flight schedule will help you in detecting at what time planes fly from Denver to San Antonio. 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
09:35 — 12:43	09:35 — 12:43 UA2063 United Airlines Denver — San Antonio	2h 8m	Find flight from$119
09:40 — 12:47	09:40 — 12:47 UA1131 United Airlines Denver — San Antonio	2h 7m	Find flight from$112
09:40 — 12:48	09:40 — 12:48 UA1544 United Airlines Denver — San Antonio	2h 8m	Find flight from$135
10:43 — 14:00	10:43 — 14:00 F92356 Frontier Airlines Denver — San Antonio	2h 17m	Find flight from$65
13:41 — 16:51	13:41 — 16:51 UA1022 United Airlines Denver — San Antonio	2h 10m	Find flight from$157
13:44 — 16:54	13:44 — 16:54 UA1610 United Airlines Denver — San Antonio	2h 10m	Find flight from$182
16:17 — 19:31	16:17 — 19:31 F92098 Frontier Airlines Denver — San Antonio	2h 14m	Find flight from$87
17:45 — 20:56	17:45 — 20:56 UA1110 United Airlines Denver — San Antonio	2h 11m	Find flight from$134
17:55 — 21:07	17:55 — 21:07 UA1762 United Airlines Denver — San Antonio	2h 12m	Find flight from$171
20:20 — 23:43	20:20 — 23:43 UA5716 United Airlines Denver — San Antonio	2h 23m	Find flight from$191
20:35 — 23:56	20:35 — 23:56 UA1464 United Airlines Denver — San Antonio	2h 21m	Find flight from$174
20:43 — 23:59	20:43 — 23:59 UA1801 United Airlines Denver — San Antonio	2h 16m	Find flight from$112
00:23 — 09:30	00:20 — 06:03 F91734 Frontier Airlines Denver — Orlando 1h 30m stop 07:40 — 09:47 F91653 Frontier Airlines Orlando — San Antonio	8h 7m including layover	Find flight from$102
00:59 — 11:42	00:59 — 06:10 F93294 Frontier Airlines Denver — Atlanta 3h 55m stop 10:05 — 11:42 F94809 Frontier Airlines Atlanta — San Antonio	9h 43m including layover	Find flight from$103
05:02 — 10:56	05:02 — 08:31 UA320 United Airlines Denver — Houston 1h 19m stop 09:50 — 10:56 UA1311 United Airlines Houston — San Antonio	4h 54m including layover	Find flight from$186
05:10 — 10:37	05:02 — 08:26 UA320 United Airlines Denver — Houston 55m stop 09:30 — 10:37 UA1371 United Airlines Houston — San Antonio	4h 27m including layover	Find flight from$175
07:45 — 15:26	07:45 — 11:13 UA1720 United Airlines Denver — Houston 3h 8m stop 14:20 — 15:26 UA697 United Airlines Houston — San Antonio	6h 41m including layover	Find flight from$183
07:45 — 13:19	07:45 — 11:14 UA1720 United Airlines Denver — Houston 56m stop 12:10 — 13:19 UA6017 United Airlines Houston — San Antonio	4h 34m including layover	Find flight from$186
08:00 — 18:37	08:00 — 10:00 HA4849 Hawaiian Airlines Denver — Seattle 2h 31m stop 12:33 — 18:37 HA6891 Hawaiian Airlines Seattle — San Antonio	9h 37m including layover	Find flight from$200
08:30 — 09:53 +1 day	08:30 — 11:34 SY1610 Sun Country Airlines Denver — Minneapolis 19h 26m stop 07:00 — 09:53 SY1835 Sun Country Airlines Minneapolis — San Antonio	24h 23m including layover	Find flight from$164
10:07 — 15:23	09:40 — 13:11 UA2676 United Airlines Denver — Houston 40m stop 14:37 — 15:49 UA2399 United Airlines Houston — San Antonio	4h 16m including layover	Find flight from$158
11:39 — 17:42	11:38 — 15:10 UA738 United Airlines Denver — Houston 1h 24m stop 16:35 — 17:42 UA636 United Airlines Houston — San Antonio	5h 3m including layover	Find flight from$186
11:39 — 19:12	11:38 — 15:10 UA738 United Airlines Denver — Houston 2h 54m stop 18:30 — 19:37 UA1477 United Airlines Houston — San Antonio	6h 33m including layover	Find flight from$186
12:05 — 13:08 +1 day	09:44 — 10:51 F91993 Frontier Airlines Denver — Las Vegas 19h 13m stop 08:40 — 13:23 F93418 Frontier Airlines Las Vegas — San Antonio	24h 3m including layover	Find flight from$114
14:37 — 13:08 +1 day	13:33 — 14:39 F92349 Frontier Airlines Denver — Las Vegas 16h 35m stop 08:40 — 13:23 F93418 Frontier Airlines Las Vegas — San Antonio	21h 31m including layover	Find flight from$109
14:37 — 19:38 +1 day	14:37 — 15:46 F92349 Frontier Airlines Denver — Las Vegas 23h 1m stop 14:47 — 19:38 F93420 Frontier Airlines Las Vegas — San Antonio	28h 1m including layover	Find flight from$150
15:40 — 21:17	15:40 — 19:05 UA1299 United Airlines Denver — Houston 1h 5m stop 20:10 — 21:17 UA1542 United Airlines Houston — San Antonio	4h 37m including layover	Find flight from$183
15:40 — 22:48	15:40 — 19:05 UA1299 United Airlines Denver — Houston 2h 40m stop 21:45 — 22:48 UA1475 United Airlines Houston — San Antonio	6h 8m including layover	Find flight from$183
16:46 — 22:48	16:46 — 20:13 UA1202 United Airlines Denver — Houston 1h 32m stop 21:45 — 22:48 UA1475 United Airlines Houston — San Antonio	5h 2m including layover	Find flight from$183
17:46 — 13:23 +1 day	17:41 — 18:50 F94967 Frontier Airlines Denver — Las Vegas 13h 45m stop 08:40 — 13:23 F93418 Frontier Airlines Las Vegas — San Antonio	18h 37m including layover	Find flight from$114
20:24 — 13:23 +1 day	20:24 — 21:24 F94611 Frontier Airlines Denver — Las Vegas 11h 16m stop 08:40 — 13:23 F93418 Frontier Airlines Las Vegas — San Antonio	15h 59m including layover	Find flight from$108
22:29 — 13:03 +1 day	22:29 — 23:36 F9777 Frontier Airlines Denver — Las Vegas 8h 39m stop 08:40 — 13:23 F93418 Frontier Airlines Las Vegas — San Antonio	13h 34m including layover	Find flight from$108
22:29 — 19:38 +1 day	22:29 — 23:32 F9777 Frontier Airlines Denver — Las Vegas 15h 15m stop 14:47 — 19:38 F93420 Frontier Airlines Las Vegas — San Antonio	20h 9m including layover	Find flight from$150

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

*Departure and arrival times - local. Updated on July 31, 2025

Flight Information

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

Distance between Denver and San Antonio is 1281 miles. Time difference between the cities is 1h. Airplanes depart 00:23 to 23:59 from 2 Denver airports and arrive 00:23 to 23:59 to 5 San Antonio airports. Average flight time is 2h 12m.

The fastest flight 2h 7m
Average flight time 2h 12m
The earliest flight 00:23
The latest flight 23:59
Distance 796 ml

The cheapest months to travel to San Antonio are may (from 62 $), september (from 65 $), august (from 87 $).

The most expensive months are october (from 176 $), november (from 172 $), february (from 158 $).

What is the lowest airfare Denver to San Antonio?

The cheapest plane ticket found by our users is $65. This airfare is for economy class on one-way F92356 flight by Frontier Airlines for September 27, 2025 which leaves Denver International in Denver at 10:43 am and arrives at San Antonio San Antonio at 14:00.

Economy class

$65

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Business class

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First class

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Popular Airlines on the Route

The flight Denver — San Antonio is served by 6 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 32 departures per week at the price of from $ 208 . And the most expensive tickets are offered by United Airlines airline - from $ 668.

Direct flights

There are 12 nonstop flights on the route. The fastest direct flight is UA1131 by United Airlines takes 2h 7m and the cheapest is F92356 by Frontier Airlines for $65.

F9 - Frontier Airlines

from $65

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UA - United Airlines

from $112

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Connecting Flights

There are 315 flights with layovers on the route. The fastest connecting flight is UA1918 by United Airlines takes 4h 9m and the cheapest is F92356 by Frontier Airlines for $102.

AS - Alaska Airlines

from $208

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F9 - Frontier Airlines

from $102

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SY - Sun Country Airlines

from $153

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HA - Hawaiian Airlines

from $199

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UA - United Airlines

from $158

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G4 - Allegiant Air

from $183

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Airports

You can fly from Denver to San Antonio from 2 airports (Denver International, Arapahoe Co).

Denver airports

Denver International-DEN

from $65
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Arapahoe Co-APA

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San Antonio airports

Randolph AFB-RND

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Martindale AAF-MDA

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San Antonio-SAT

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Kelly AFB-SKF

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Stinson Municipal-SSF

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Airplanes

There are flights to San Antonio from Denver by 6 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

Top Domestic Destinations from Denver

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

Denver — Las Vegas

from $70

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Denver — Phoenix

from $59

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Denver — Boston

from $68

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Denver — Seattle

from $75

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Denver — Orlando

from $74

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Denver — Chicago

from $66

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Denver — Miami

from $68

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Denver — Tampa

from $57

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Denver — Los Angeles

from $17

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Denver — Houston

from $67

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Top International Destinations from Denver

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.

Denver — Cancun

from $66

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Denver — London

from $63

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Denver — Tokyo

from $75

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Denver — Vancouver

from $60

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Denver — Toronto

from $60

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Denver — Paris

from $75

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Denver — Mexico City

from $66

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Denver — Calgary

from $68

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Denver — Dublin

from $69

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Denver — San Jose

from $72

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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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