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$83+ Cheap flights from Colorado to San Antonio (SAT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SAT
Aug 27 — Sep 31
Thu 8/27
Thu 9/3
1 adult, Economy
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Cheap flight deals from Colorado to San Antonio

Cheapest flights from Colorado to San Antonio
Explore the most affordable flight options available from Colorado to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2026.

This Super.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/284:13 pm
DEN
-
SAT
Nonstop2h 12m
Frontier
Thu 10/18:20 pm
SAT
-
DEN
Nonstop2h 29m
Frontier
Deal found 7/26$182
This Frontier deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:08 am
DEN
-
SAT
Nonstop2h 13m
Frontier
Mon 10/2612:16 pm
SAT
-
DEN
Nonstop2h 25m
Frontier
Deal found 7/26$183
This FlightHub deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/274:13 pm
DEN
-
SAT
Nonstop2h 18m
Frontier
Sun 8/308:26 pm
SAT
-
DEN
Nonstop2h 37m
Frontier
Deal found 7/23$186
This Kiwi.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/148:08 am
DEN
-
SAT
Nonstop2h 13m
Frontier
Sun 10/1812:16 pm
SAT
-
DEN
Nonstop2h 25m
Frontier
Deal found 7/23$192
This Southwest deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:00 pm
DEN
-
SAT
Nonstop2h 30m
Southwest
Sat 10/312:35 pm
SAT
-
DEN
1 stop3h 55m
Southwest
Deal found 7/27$203
This Kiwi.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/73:40 pm
DEN
-
SAT
Nonstop2h 14m
Frontier
Mon 8/107:49 pm
SAT
-
DEN
Nonstop2h 35m
Frontier
Deal found 7/23$207
This Kiwi.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/33:30 pm
DEN
-
SAT
Nonstop2h 14m
Frontier
Wed 8/57:49 pm
SAT
-
DEN
Nonstop2h 35m
Frontier
Deal found 7/23$208
This Frontier deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/153:40 pm
DEN
-
SAT
Nonstop2h 14m
Frontier
Sat 8/159:32 pm
SAT
-
DEN
1 stop7h 18m
Frontier
Deal found 7/23$213
This Kiwi.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1212:47 pm
DEN
-
SAT
1 stop6h 50m
Frontier
Sat 8/157:49 pm
SAT
-
DEN
Nonstop2h 35m
Frontier
Deal found 7/23$214
This Southwest deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/154:35 pm
COS
-
SAT
1 stop3h 55m
Southwest
Tue 9/225:25 pm
SAT
-
COS
1 stop3h 45m
Southwest
Deal found 7/22$298
This United Airlines deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:30 am
COS
-
SAT
1 stop4h 25m
United Airlines
Sat 8/294:12 pm
SAT
-
COS
1 stop6h 15m
United Airlines
Deal found 7/23$303
This Southwest deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/512:15 pm
COS
-
SAT
1 stop6h 40m
Southwest
Wed 9/95:25 pm
SAT
-
COS
1 stop3h 50m
Southwest
Deal found 7/24$304

Find flight deals from Colorado to San Antonio

Keep the following information in mind while searching for Colorado to San Antonio flight deals. Data was last updated July 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$182
(Super.com)

One-way from

$83
(Super.com)

Popular in

July

Cheapest in

September

Average price

$378

Good round-trip deal

$239 or less

Good one-way deal

$201 or less
Provider with most accurate pricing for Denver Intl-San Antonio flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-San Antonio flights.
Search Deals
From Colorado to San Antonio
Search Deals
One-way flight from Colorado to San Antonio
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($68 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Colorado to San Antonio.
Search Deals
Price to beat on a one-way flight from Colorado to San Antonio.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado to San Antonio that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2026.
Use the filters below to find and compare flights from Colorado to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Tue 9/29

6:00 pm-9:30 pm

Nonstop2h 30m

San Antonio

Sat 10/3

12:35 pm-3:30 pm

1 stop3h 55m

$203
Quickest round-trip

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Thu 8/20

4:00 pm-7:10 pm

Nonstop2h 10m

San Antonio

Mon 8/24

9:30 am-10:40 am

Nonstop2h 10m

$237

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Sat 8/29

5:05 pm-8:15 pm

Nonstop2h 10m

San Antonio

Sat 9/5

5:00 pm-6:30 pm

Nonstop2h 30m

$257

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Mon 9/28

3:35 pm-9:30 pm

1 stop4h 55m

San Antonio

Thu 10/1

6:45 pm-11:45 pm

1 stop6h 00m

$277

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Thu 12/17

7:50 am-5:14 pm

1 stop8h 24m

San Antonio

Mon 12/21

6:15 pm-12:24 am

1 stop7h 09m

$287

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Tue 9/29

2:20 pm-9:45 pm

2 stops6h 25m

San Antonio

Wed 9/30

9:20 am-2:10 pm

2 stops5h 50m

$287

Colorado SpringsSan Antonio

COS - SAT

COSSAT

Colorado Springs

Thu 8/27

6:00 am-12:50 pm

1 stop5h 50m

San Antonio

Tue 9/1

5:25 pm-8:10 pm

1 stop3h 45m

$298

Colorado SpringsSan Antonio

COS - SAT

COSSAT

Colorado Springs

Thu 8/20

5:10 pm-11:25 pm

1 stop5h 15m

San Antonio

Tue 8/25

5:25 pm-8:10 pm

1 stop3h 45m

$298

DurangoSan Antonio

DRO - SAT

DROSAT

Durango La Plata County

Thu 8/20

11:26 am-4:55 pm

1 stop4h 29m

San Antonio

Sun 8/23

4:39 pm-8:54 pm

1 stop5h 15m

$308

DurangoSan Antonio

DRO - SAT

DROSAT

Durango La Plata County

Fri 8/28

12:40 pm-7:37 pm

1 stop5h 57m

San Antonio

Sat 9/5

4:40 pm-7:58 pm

1 stop4h 18m

$308

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Colorado to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Colorado with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Colorado to San Antonio

What is the cheapest month to book a flight from Colorado to San Antonio?

Currently, January is the cheapest month in which you can book a flight from Colorado to San Antonio (average of $211). Flying from Colorado to San Antonio in July is currently the most expensive (average of $378). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CO to SAT?

Find hourly flight availability from Colorado to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 28, 2026.

A simple way to save on the total cost of your ticket is to fly from Colorado to San Antonio in the evening. If you’re flexible enough to do this you can expect to save up to 46% on your trip compared to booking a flight at noon.

Weekly flight availability from Colorado to San Antonio

Explore weekly flight availability from Colorado to San Antonio. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 28, 2026.

The most flights from USCO to SAT are scheduled on a Monday (16 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (10 on average).

How much does it cost to fly round-trip from Colorado to San Antonio?

Airfare is typical for this route at the moment.
Colorado to San Antonio flights typically cost between $157 and $280 in September.
The cheapest round-trip price found within the last 5 days was $182 on Frontier (Sep 28-Oct 1).

How far ahead should I book a flight from Colorado to San Antonio?

The best time to book flights from Colorado to San Antonio is 54 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest day to fly from Colorado to San Antonio?

Use this chart to determine the cheapest time to fly round-trip from Colorado to San Antonio. Price data was last updated on December 6, 2025.

Travelers seeking maximum savings on their Colorado to San Antonio flight should consider departing on Friday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Colorado to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Antonio from Colorado?

    Located just 7.6 mi from the city center, San Antonio (SAT) is the airport most travelers will use when flying to San Antonio from Colorado.

  • How popular is this Colorado to San Antonio flight route?

    This flight path from Colorado to San Antonio was viewed by 33 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Colorado to San Antonio?

    A quick flight from Colorado to San Antonio can take about 2h 30m. Southwest provides one of the quickest options available for as low as $203. Colorado and San Antonio are separated by a distance of 795 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Colorado to San Antonio one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $40. Users have also found prices from $98 and $98 on American Airlines and United Airlines, respectively.

  • What are the most popular routes from Colorado to San Antonio?

    When deciding which route to take from Colorado to San Antonio consider Denver Intl - San Antonio, Colorado Springs - San Antonio or Grand Junction Regnl - San Antonio as they are the most popular.

  • What are the most reliable airlines from Colorado to San Antonio?

    Consider Frontier (80%), Volaris (80%) or Air Canada (78%) when booking your flight. These represent the most reliable airlines when flying from Colorado to San Antonio.

  • What are the cheapest flights from Colorado to San Antonio?

    On average you can expect to pay $282 for a flight from Colorado to San Antonio. The cheapest flight overall is $88 while the most popular route, (Denver Intl - San Antonio) is currently priced at $221.

  • Can I find deals for flights from Colorado to San Antonio that include hotel bookings?

    Yes. In addition to deals on Colorado to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Colorado to San Antonio?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Colorado to San Antonio.

  • Can I find deals for business class flights from Colorado to San Antonio?

    Yes. Cheapflights offers flight deals from Colorado to San Antonio by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Colorado to San Antonio?

    Currently, January is the cheapest month in which you can book a flight from Colorado to San Antonio (average of $211). Flying from Colorado to San Antonio in July is currently the most expensive (average of $378). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville

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Alternative routes for Colorado to San Antonio

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Top 4 airlines flying from Colorado to San Antonio

Discover the top 4 airlines that operate flights from Colorado to San Antonio. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$66Average$195FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$144Average$372FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$184Average$362FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$200Average$366FlexibilityNo cancel feeOn-time71%

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