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$33+ 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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SAT
Nov 13 — Nov 201
Thu 11/13
Thu 11/20
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 October 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$88
(Mytrip)

One-way from

$33
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$209

Good round-trip deal

$188 or less

Good one-way deal

$94 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. 14% potential increase in price ($39 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 14, 2025.

This Mytrip deal was found by Cheapflights users on 10/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:00 amDEN - SAT
Nonstop2h 18mFrontier
Sun 12/77:14 pmSAT - DEN
Nonstop2h 24mFrontier
Deal found 10/13$88
This Frontier deal was found by Cheapflights users on 10/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/134:29 pmDEN - SAT
Nonstop2h 14mFrontier
Mon 11/178:25 pmSAT - DEN
Nonstop2h 23mFrontier
Deal found 10/11$91
This CheapOair deal was found by Cheapflights users on 10/12. 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.
Sat 11/111:00 amDEN - SAT
Nonstop2h 17mFrontier
Mon 11/32:04 pmSAT - DEN
1 stop14h 55mFrontier
Deal found 10/12$93
This Frontier deal was found by Cheapflights users on 10/12. 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 12/1310:30 pmDEN - SAT
1 stop9h 39mFrontier
Mon 12/1510:13 amSAT - DEN
Nonstop2h 26mFrontier
Deal found 10/12$96
This Kiwi.com deal was found by Cheapflights users on 10/12. 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 11/63:51 pmDEN - SAT
Nonstop2h 15mFrontier
Mon 11/108:25 pmSAT - DEN
Nonstop2h 23mFrontier
Deal found 10/12$97
This Frontier deal was found by Cheapflights users on 10/13. 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 11/134:29 pmDEN - SAT
Nonstop2h 14mFrontier
Sun 11/168:25 pmSAT - DEN
Nonstop2h 23mFrontier
Deal found 10/13$104
This Mytrip deal was found by Cheapflights users on 10/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/251:22 pmDEN - SAT
Nonstop2h 15mFrontier
Fri 10/318:15 pmSAT - DEN
Nonstop2h 23mFrontier
Deal found 10/14$106
This CheapOair deal was found by Cheapflights users on 10/12. 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.
Wed 10/2910:29 pmDEN - SAT
1 stop13h 50mFrontier
Thu 10/3010:46 pmSAT - DEN
1 stop14h 33mFrontier
Deal found 10/12$108
This Kiwi.com deal was found by Cheapflights users on 10/12. 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 10/314:16 pmDEN - SAT
Nonstop2h 14mFrontier
Sun 11/28:26 pmSAT - DEN
Nonstop2h 23mFrontier
Deal found 10/12$111
This United Airlines deal was found by Cheapflights users on 10/13. 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 10/2811:21 amGJT - SAT
1 stop4h 37mUnited Airlines
Sat 11/14:30 pmSAT - GJT
1 stop6h 28mUnited Airlines
Deal found 10/13$209
This United Airlines deal was found by Cheapflights users on 10/13. 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 10/295:15 amDRO - SAT
1 stop6h 41mUnited Airlines
Sun 11/24:40 pmSAT - DRO
1 stop4h 54mUnited Airlines
Deal found 10/13$270
This United Airlines deal was found by Cheapflights users on 10/13. 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 12/117:15 amGJT - SAT
1 stop4h 51mUnited Airlines
Sat 12/131:34 pmSAT - GJT
1 stop4h 21mUnited Airlines
Deal found 10/13$279

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 October 14, 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

Sat 11/29

6:42 am-10:10 am

Nonstop2h 28m

San Antonio

Sat 12/6

1:51 pm-3:58 am

1 stop15h 07m

$163

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Sat 10/25

1:22 pm-4:37 pm

Nonstop2h 15m

San Antonio

Fri 10/31

6:15 pm-11:53 pm

1 stop6h 38m

$166

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Fri 12/12

6:00 am-9:18 am

Nonstop2h 18m

San Antonio

Fri 12/19

9:54 pm-11:21 pm

Nonstop2h 27m

$188

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Thu 11/13

9:41 am-12:56 pm

Nonstop2h 15m

San Antonio

Fri 11/14

8:30 am-9:50 am

Nonstop2h 20m

$197

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Fri 11/14

12:50 am-10:37 am

1 stop8h 47m

San Antonio

Sun 11/16

4:57 pm-12:02 am

1 stop8h 05m

$207

Grand JunctionSan Antonio

GJT - SAT

GJTSAT

Grand Junction Regnl

Tue 10/28

11:21 am-4:58 pm

1 stop4h 37m

San Antonio

Sat 11/1

4:30 pm-9:58 pm

1 stop6h 28m

$209

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Sun 12/14

5:45 am-1:43 pm

1 stop6h 58m

San Antonio

Sun 12/14

6:10 pm-11:17 pm

1 stop6h 07m

$217

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Thu 12/4

12:50 am-10:30 am

1 stop8h 40m

San Antonio

Mon 12/8

6:22 pm-12:17 am

1 stop6h 55m

$217

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Mon 11/17

8:00 am-11:15 am

Nonstop2h 15m

San Antonio

Tue 11/18

5:35 am-6:55 am

Nonstop2h 20m

$227

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Tue 11/11

8:00 am-11:15 am

Nonstop2h 15m

San Antonio

Fri 11/14

5:25 am-6:45 am

Nonstop2h 20m

$227

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

Showing 1-10 of 60 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 $48). 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 October 14, 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 32% 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 October 14, 2025.

The most flights from USCO to SAT are scheduled on a Monday (13 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 17 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 15m. Frontier provides one of the quickest options available for as low as $197. 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 $99 and $99 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 Grand Junction Regnl - San Antonio as they are the most popular.

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

    Consider Southwest (86%), United Airlines (82%) or Air Canada (74%) 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 $188 for a flight from Colorado to San Antonio. The cheapest flight overall is $40 while the most popular route, (Denver Intl - San Antonio) is currently priced at $129.

  • 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 $48). 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

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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 October 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$68Average$188FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$157Average$438FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$197Average$330FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$198Average$356FlexibilityNo cancel feeOn-time71%

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