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San Antonio

$64+ 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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SAT
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
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 December 12, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/10. 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 12/319:00 pmDEN - SAT
Nonstop2h 17mFrontier
Wed 1/73:55 pmSAT - DEN
Nonstop2h 28mFrontier
Deal found 12/10$108
This Frontier deal was found by Cheapflights users on 12/9. 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.
Tue 12/308:05 amDEN - SAT
Nonstop2h 16mFrontier
Tue 1/66:45 amSAT - DEN
Nonstop2h 24mFrontier
Deal found 12/9$139
This Super.com deal was found by Cheapflights users on 12/11. 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.
Tue 12/308:05 amDEN - SAT
Nonstop2h 16mFrontier
Mon 1/512:18 pmSAT - DEN
Nonstop2h 23mFrontier
Deal found 12/11$202
This Frontier deal was found by Cheapflights users on 12/10. 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.
Wed 12/2410:29 pmDEN - SAT
1 stop9h 54mFrontier
Thu 12/252:09 pmSAT - DEN
Nonstop2h 24mFrontier
Deal found 12/10$206
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 12/319:00 pmDEN - SAT
Nonstop2h 17mMultiple Airlines
Wed 1/75:10 amSAT - DEN
2 stops14h 27mMultiple Airlines
Deal found 12/10$210
This Super.com deal was found by Cheapflights users on 12/10. 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 12/2910:29 pmDEN - SAT
1 stop9h 54mFrontier
Wed 12/316:45 amSAT - DEN
Nonstop2h 24mFrontier
Deal found 12/10$212
This Super.com deal was found by Cheapflights users on 12/10. 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.
Wed 12/319:00 pmDEN - SAT
Nonstop2h 17mFrontier
Sun 1/46:45 amSAT - DEN
Nonstop2h 24mFrontier
Deal found 12/10$216
This Super.com deal was found by Cheapflights users on 12/10. 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.
Tue 12/308:05 amDEN - SAT
Nonstop2h 16mFrontier
Thu 1/12:09 pmSAT - DEN
Nonstop2h 24mFrontier
Deal found 12/10$218
This American Airlines deal was found by Cheapflights users on 12/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/184:32 pmGJT - SAT
1 stop5h 27mAmerican Airlines
Sun 12/216:56 pmSAT - GJT
1 stop5h 30mAmerican Airlines
Deal found 12/11$259
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Thu 12/185:30 amGJT - SAT
2 stops9h 23mUnited Airlines
Sun 12/215:20 amSAT - GJT
1 stop5h 03mUnited Airlines
Deal found 12/11$273
This United Airlines deal was found by Cheapflights users on 12/9. 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.
Thu 12/187:00 amDRO - SAT
1 stop5h 12mUnited Airlines
Mon 12/221:10 pmSAT - DRO
1 stop5h 10mUnited Airlines
Deal found 12/9$342
This American Airlines deal was found by Cheapflights users on 12/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1312:45 pmCOS - SAT
1 stop6h 22mAmerican Airlines
Tue 12/163:00 pmSAT - COS
1 stop6h 30mAmerican Airlines
Deal found 12/11$351

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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$104
(Frontier)

One-way from

$64
(Expedia)

Popular in

December

Cheapest in

September

Average price

$287

Good round-trip deal

$148 or less

Good one-way deal

$64 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. 10% potential increase in price ($26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 12, 2025.
Use the filters below to find and compare flights from Colorado to San Antonio that are best for you.

Fly from

Colorado

Fly to

San Antonio

Route

Depart

Return

Price

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Wed 1/7

1:26 pm-11:00 am

2 stops20h 34m

San Antonio

Sun 1/11

10:13 am-11:39 am

Nonstop2h 26m

$135

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Wed 1/28

9:44 pm-1:11 pm

1 stop14h 27m

San Antonio

Thu 1/29

8:24 pm-9:49 pm

Nonstop2h 25m

$162

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Sun 2/8

6:00 am-3:21 pm

1 stop8h 21m

San Antonio

Tue 2/10

2:42 pm-8:05 pm

1 stop6h 23m

$197

DurangoSan Antonio

DRO - SAT

DROSAT

Durango La Plata County

Thu 1/22

11:47 am-8:04 pm

1 stop7h 17m

San Antonio

Mon 1/26

1:38 pm-6:34 pm

1 stop5h 56m

$200

DurangoSan Antonio

DRO - SAT

DROSAT

Durango La Plata County

Thu 1/22

10:40 am-4:53 pm

1 stop5h 13m

San Antonio

Mon 1/26

8:30 am-12:36 pm

1 stop5h 06m

$200

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Wed 1/7

1:26 pm-9:40 am

3 stops19h 14m

San Antonio

Sun 1/11

10:13 am-11:39 am

Nonstop2h 26m

$212

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Fri 1/16

12:49 pm-9:28 pm

1 stop7h 39m

San Antonio

Sat 1/17

11:18 am-7:28 pm

1 stop9h 10m

$217

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Fri 1/16

12:49 pm-9:28 pm

1 stop7h 39m

San Antonio

Sun 1/18

7:35 am-3:09 pm

1 stop8h 34m

$217

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Fri 1/16

9:41 am-11:52 pm

2 stops13h 11m

San Antonio

Mon 1/19

9:36 pm-10:32 am

1 stop13h 56m

$237

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Fri 1/9

12:49 pm-9:28 pm

1 stop7h 39m

San Antonio

Mon 1/12

5:20 am-1:37 pm

1 stop9h 17m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 55 results
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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, February is the cheapest month in which you can book a flight from Colorado to San Antonio (average of $57). Flying from Colorado to San Antonio in July is currently the most expensive (average of $90). 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 December 12, 2025.

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 34% on your trip compared to booking a flight at noon.

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 16, 2024.

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

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 December 12, 2025.

The most flights from USCO to SAT are scheduled on a Thursday (15 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).

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 19 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 7h 17m. Frontier provides one of the quickest options available for as low as $200. Colorado and San Antonio are separated by a distance of 750 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 $37. Users have also found prices from $79 and $88 on American Airlines and Southwest, 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 Durango La Plata County - San Antonio as they are the most popular.

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

    Consider United Airlines (94%), Air Canada (93%) or Frontier (92%) 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 $206 for a flight from Colorado to San Antonio. The cheapest flight overall is $44 while the most popular route, (Denver Intl - San Antonio) is currently priced at $117.

  • 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, February is the cheapest month in which you can book a flight from Colorado to San Antonio (average of $57). Flying from Colorado to San Antonio in July is currently the most expensive (average of $90). 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$72Average$186FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$137Average$429FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$197Average$334FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$216Average$354FlexibilityNo cancel feeOn-time71%

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