HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Antonio

$68+ 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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SAT
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Colorado to San Antonio with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 June 12, 2025.

Round-trip from

$131
(Cheapflightsfares)

One-way from

$69
(Frontier)

Popular in

December

Cheapest in

August

Average price

$199

Good round-trip deal

$157 or less

Good one-way deal

$96 or less
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 ($56 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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

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 June 12, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/292:45 pmDEN - SAT
Nonstop2h 17mFrontier
Thu 8/78:14 pmSAT - DEN
Nonstop2h 31mFrontier
Deal found 6/11$131
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/712:15 pmDEN - SAT
Nonstop2h 05mSouthwest
Mon 8/112:10 pmSAT - DEN
Nonstop2h 15mSouthwest
Deal found 6/10$157
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/222:50 pmDEN - SAT
1 stop7h 01mAmerican Airlines
Sat 10/256:12 amSAT - DEN
1 stop6h 16mAmerican Airlines
Deal found 6/12$182
This Delta deal was found by Cheapflights users on 6/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/293:55 pmDEN - SAT
1 stop7h 40mDelta
Tue 8/512:24 pmSAT - DEN
1 stop9h 00mDelta
Deal found 6/9$197
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/285:55 amDRO - SAT
1 stop6h 25mAmerican Airlines
Mon 9/16:00 amSAT - DRO
1 stop4h 42mAmerican Airlines
Deal found 6/12$218
This United Airlines deal was found by Cheapflights users on 6/9. 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.
Sat 7/268:43 pmDEN - SAT
Nonstop2h 16mUnited Airlines
Wed 8/61:43 pmSAT - DEN
Nonstop2h 17mUnited Airlines
Deal found 6/9$237
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/296:00 amCOS - SAT
1 stop7h 20mDelta
Sun 8/3112:41 pmSAT - COS
1 stop5h 34mDelta
Deal found 6/11$268
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Fri 8/293:45 pmCOS - SAT
1 stop4h 01mUnited Airlines
Sun 8/315:30 amSAT - COS
2 stops6h 24mUnited Airlines
Deal found 6/11$273
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/255:56 amGJT - SAT
1 stop6h 46mDelta
Sun 6/296:03 pmSAT - GJT
1 stop5h 28mDelta
Deal found 6/10$279
This United Airlines deal was found by Cheapflights users on 6/9. 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.
Fri 7/116:07 pmDRO - SAT
1 stop4h 52mUnited Airlines
Sat 7/127:30 amSAT - DRO
1 stop4h 51mUnited Airlines
Deal found 6/9$288
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/284:33 pmGJT - SAT
1 stop5h 30mAmerican Airlines
Sun 6/295:00 amSAT - GJT
1 stop5h 55mAmerican Airlines
Deal found 6/10$299
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/296:00 amCOS - SAT
2 stops6h 50mSouthwest
Sun 8/317:15 amSAT - COS
2 stops8h 10mSouthwest
Deal found 6/11$314

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 June 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

Tue 7/29

2:45 pm-6:02 pm

Nonstop2h 17m

San Antonio

Thu 8/7

8:14 pm-9:45 pm

Nonstop2h 31m

$131

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Thu 8/7

12:15 pm-3:20 pm

Nonstop2h 05m

San Antonio

Mon 8/11

2:10 pm-3:25 pm

Nonstop2h 15m

$157

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Wed 10/22

2:50 pm-10:51 pm

1 stop7h 01m

San Antonio

Sat 10/25

6:12 am-11:28 am

1 stop6h 16m

$182

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Tue 7/29

3:55 pm-12:35 am

1 stop7h 40m

San Antonio

Tue 8/5

12:24 pm-8:24 pm

1 stop9h 00m

$197

DurangoSan Antonio

DRO - SAT

DROSAT

Durango La Plata County

Thu 8/28

5:55 am-1:20 pm

1 stop6h 25m

San Antonio

Mon 9/1

6:00 am-9:42 am

1 stop4h 42m

$218

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Sat 7/26

8:43 pm-11:59 pm

Nonstop2h 16m

San Antonio

Wed 8/6

1:43 pm-3:00 pm

Nonstop2h 17m

$237

Colorado SpringsSan Antonio

COS - SAT

COSSAT

Colorado Springs

Fri 8/29

6:00 am-2:20 pm

1 stop7h 20m

San Antonio

Sun 8/31

12:41 pm-5:15 pm

1 stop5h 34m

$268

Colorado SpringsSan Antonio

COS - SAT

COSSAT

Colorado Springs

Fri 8/29

3:45 pm-8:46 pm

1 stop4h 01m

San Antonio

Sun 8/31

5:30 am-10:54 am

2 stops6h 24m

$273

Grand JunctionSan Antonio

GJT - SAT

GJTSAT

Grand Junction Regnl

Wed 6/25

5:56 am-1:42 pm

1 stop6h 46m

San Antonio

Sun 6/29

6:03 pm-10:31 pm

1 stop5h 28m

$279

DurangoSan Antonio

DRO - SAT

DROSAT

Durango La Plata County

Fri 7/11

6:07 pm-11:59 pm

1 stop4h 52m

San Antonio

Sat 7/12

7:30 am-11:21 am

1 stop4h 51m

$288

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 34 results
1
2
3
4

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, August is the cheapest month in which you can book a flight from Colorado to San Antonio (average of $295). Flying from Colorado to San Antonio in March is currently the most expensive (average of $376). 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 June 12, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Colorado to San Antonio as you normally would.

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 June 12, 2025.

The most flights from USCO to SAT are scheduled on a Thursday (16 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 on average).

Rainfall in San Antonio by month

Plan your trip to San Antonio by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Antonio ranges from 1.6 - 3.7 inches per month. May is typically the wettest month, when rainfall can reach 3.7 in. December is typically the driest time to visit San Antonio when rainfall is around 1.6 in.

Temperature in San Antonio by month

Plan your trip to San Antonio by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Antonio, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Antonio. Reviews last updated June 12, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta and United Airlines from Colorado to San Antonio to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,287 reviews

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.1

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,287 reviews
Southwest
8.0
Very good
4,287 reviews

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.1

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,946 reviews
Southwest
8.0
Very good
4,287 reviews

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.1

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,790 reviews
Southwest
8.0
Very good
4,287 reviews

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.1

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,287 reviews

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.1

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Frontier
6.0
Okay
3,295 reviews
Southwest
8.0
Very good
4,287 reviews

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.1

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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 21 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • 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 $69. Users have also found prices from $79 and $84 on United 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, Durango La Plata County - San Antonio or Colorado Springs - San Antonio as they are the most popular.

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

    Consider Frontier (78%), United Airlines (72%) or Air Canada (72%) 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 $157 for a flight from Colorado to San Antonio. The cheapest flight overall is $54 while the most popular route, (Denver Intl - San Antonio) is currently priced at $156.

  • 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, August is the cheapest month in which you can book a flight from Colorado to San Antonio (average of $295). Flying from Colorado to San Antonio in March is currently the most expensive (average of $376). 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 Colorado?

Book flights to Colorado if you plan to visit one of these locations
New Braunfels

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Colorado to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.
LaGuardia to Dallas/Fort Worth flights
Los Angeles to Dallas/Fort Worth flights
Newark to Dallas/Fort Worth flights
John F Kennedy Intl to Dallas/Fort Worth flights
O'Hare Intl to Dallas/Fort Worth flights
Baltimore to Dallas/Fort Worth flights
Seattle to Dallas/Fort Worth flights
John F Kennedy Intl to Hobby flights
LaGuardia to Hobby flights
Newark to Hobby flights
Dulles Intl to Dallas/Fort Worth flights
San Francisco to Dallas/Fort Worth flights
Los Angeles to Hobby flights
Baltimore to Hobby flights
LaGuardia to George Bush Intcntl flights
Boston to Dallas/Fort Worth flights
John F Kennedy Intl to George Bush Intcntl flights
Newark to George Bush Intcntl flights
Los Angeles to George Bush Intcntl flights
John F Kennedy Intl to Austin flights
Newark to Austin flights
Minneapolis to Dallas/Fort Worth flights
Burbank to Dallas/Fort Worth flights
Reagan-National to Dallas/Fort Worth flights
Los Angeles to Austin flights
Atlanta to Dallas/Fort Worth flights
Seattle to Hobby flights
Orlando to Dallas/Fort Worth flights
Denver to Dallas/Fort Worth flights
Dulles Intl to Hobby flights
LaGuardia to Love Field flights
San Francisco to Hobby flights
O'Hare Intl to Hobby flights
Fort Lauderdale to Dallas/Fort Worth flights
Ontario to Dallas/Fort Worth flights
Philadelphia to Dallas/Fort Worth flights
Dallas/Fort Worth to Hobby flights
Reagan-National to Hobby flights
O'Hare Intl to George Bush Intcntl flights
Atlanta to Hobby flights
Ontario to Hobby flights
Midway to Dallas/Fort Worth flights
Boston to Hobby flights
Santa Ana to Dallas/Fort Worth flights
Seattle to Austin flights
Baltimore to George Bush Intcntl flights
Dallas/Fort Worth to George Bush Intcntl flights
Denver to Hobby flights
Ontario to George Bush Intcntl flights
LaGuardia to Austin flights

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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$49Average$163FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$139Average$430FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$158Average$418FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$202Average$345FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.