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$58+ 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 2/13. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SAT
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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Cheap 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 November 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$100
(Kiwi.com)

One-way from

$58
(FlightHub)

Popular in

December

Cheapest in

September

Average price

$250

Good round-trip deal

$158 or less

Good one-way deal

$77 or less
Provider with most accurate pricing for Denver Intl-San Antonio flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-San Antonio flights.
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From Colorado to San Antonio
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One-way flight from Colorado to San Antonio
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Highest demand for flights based on searches. 12% potential increase in price ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Colorado to San Antonio.
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Price to beat on a one-way flight from Colorado to San Antonio.
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Find 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 November 26, 2025.

This Super.com deal was found by Cheapflights users on 11/24. 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 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
Tue 1/66:45 amSAT - DEN
Nonstop2h 24mFrontier
Deal found 11/24$102
This FlightHub deal was found by Cheapflights users on 11/24. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:29 pmDEN - SAT
1 stop9h 54mFrontier
Wed 1/73:55 pmSAT - DEN
Nonstop2h 28mFrontier
Deal found 11/24$110
This Frontier deal was found by Cheapflights users on 11/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/298:05 amDEN - SAT
Nonstop2h 16mFrontier
Tue 1/66:45 amSAT - DEN
Nonstop2h 24mFrontier
Deal found 11/24$124
This CheapOair deal was found by Cheapflights users on 11/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1110:57 amDEN - SAT
Nonstop2h 14mFrontier
Mon 12/1512:03 pmSAT - DEN
1 stop7h 05mFrontier
Deal found 11/26$131
This Kiwi.com deal was found by Cheapflights users on 11/25. 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.
Thu 12/1110:57 amDEN - SAT
Nonstop2h 14mFrontier
Sun 12/1410:25 amSAT - DEN
Nonstop2h 26mFrontier
Deal found 11/25$133
This Frontier deal was found by Cheapflights users on 11/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/309:00 pmDEN - SAT
Nonstop2h 17mFrontier
Wed 1/73:55 pmSAT - DEN
Nonstop2h 28mFrontier
Deal found 11/24$139
This Super.com deal was found by Cheapflights users on 11/26. 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.
Wed 12/249:00 pmDEN - SAT
Nonstop2h 17mFrontier
Wed 12/316:45 amSAT - DEN
Nonstop2h 24mFrontier
Deal found 11/26$141
This United Airlines deal was found by Cheapflights users on 11/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/911:00 amDRO - SAT
1 stop4h 54mUnited Airlines
Sat 12/134:34 pmSAT - DRO
1 stop5h 00mUnited Airlines
Deal found 11/24$200
This United Airlines deal was found by Cheapflights users on 11/25. 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 12/1810:42 amGJT - SAT
1 stop5h 16mUnited Airlines
Mon 12/225:20 amSAT - GJT
1 stop5h 03mUnited Airlines
Deal found 11/25$243
This United Airlines deal was found by Cheapflights users on 11/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2412:49 pmCOS - SAT
1 stop7h 11mUnited Airlines
Wed 12/315:20 amSAT - COS
1 stop4h 26mUnited Airlines
Deal found 11/24$293
This United Airlines deal was found by Cheapflights users on 11/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/61:39 pmDRO - SAT
1 stop6h 14mUnited Airlines
Sat 12/131:34 pmSAT - DRO
1 stop4h 22mUnited Airlines
Deal found 11/26$294
This United Airlines deal was found by Cheapflights users on 11/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:45 amDRO - SAT
2 stops9h 59mUnited Airlines
Wed 12/104:34 pmSAT - DRO
1 stop6h 40mUnited Airlines
Deal found 11/26$300

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 November 26, 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

Thu 1/15

6:00 am-7:58 pm

1 stop12h 58m

San Antonio

Sun 1/18

3:57 pm-5:23 pm

Nonstop2h 26m

$109

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Thu 2/5

9:53 am-1:09 pm

Nonstop2h 16m

San Antonio

Mon 2/9

4:43 pm-6:11 pm

Nonstop2h 28m

$117

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Thu 12/11

10:57 am-2:11 pm

Nonstop2h 14m

San Antonio

Sun 12/14

1:51 pm-9:04 am

1 stop20h 13m

$134

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Fri 1/16

9:25 am-2:50 pm

1 stop4h 25m

San Antonio

Sun 1/18

10:55 am-12:15 pm

Nonstop2h 20m

$167

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Wed 12/24

10:29 pm-9:23 am

1 stop9h 54m

San Antonio

Wed 12/31

7:11 pm-5:11 pm

1 stop23h 00m

$176

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Fri 1/9

6:00 am-3:21 pm

1 stop8h 21m

San Antonio

Sun 1/11

5:20 am-1:37 pm

1 stop9h 17m

$177

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Wed 2/4

12:30 am-9:50 am

1 stop8h 20m

San Antonio

Mon 2/9

2:42 pm-8:05 pm

1 stop6h 23m

$177

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Sun 2/8

7:00 am-1:48 pm

1 stop5h 48m

San Antonio

Tue 2/10

6:30 am-1:55 pm

1 stop8h 25m

$177

DurangoSan Antonio

DRO - SAT

DROSAT

Durango La Plata County

Tue 1/13

1:38 pm-8:44 pm

1 stop6h 06m

San Antonio

Tue 1/20

1:20 pm-4:55 pm

1 stop4h 35m

$200

DurangoSan Antonio

DRO - SAT

DROSAT

Durango La Plata County

Tue 12/9

6:45 am-1:06 pm

1 stop5h 21m

San Antonio

Sat 12/13

4:34 pm-8:34 pm

1 stop5h 00m

$200

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/24

Showing 1-10 of 49 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 $56). 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 November 26, 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.

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 2h 16m. Frontier provides one of the quickest options available for as low as $117. 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 Southwest. According to our data, you can fly for as low as $59. Users have also found prices from $59 and $127 on United Airlines and Delta, 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 Air Canada (93%), United Airlines (93%) or Frontier (93%) 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 $358 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 $56). 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 November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$72Average$187FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$144Average$437FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$197Average$332FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$206Average$355FlexibilityNo cancel feeOn-time71%

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