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$30+ Cheap flights from San Antonio (SAT) to Colorado

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 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — DEN
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from San Antonio to Colorado

Keep the following information in mind while searching for San Antonio to Colorado flight deals. Data was last updated July 29, 2025.

Round-trip from

$121
(Cheapflightsfares)

One-way from

$30
(Cheapflightsfares)

Popular in

June

Cheapest in

August

Average price

$198

Good round-trip deal

$193 or less

Good one-way deal

$111 or less
From San Antonio to Colorado
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One-way flight from San Antonio to Colorado
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Highest demand for flights based on searches. 14% potential increase in price ($31 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 July 2025
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Price to beat on a round-trip flight from San Antonio to Colorado.
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Price to beat on a one-way flight from San Antonio to Colorado.
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Find flight deals from San Antonio to Colorado

Cheapest flights from San Antonio to Colorado
Explore the most affordable flight options available from San Antonio to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/29. 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.
Fri 9/197:55 pmSAT - DEN
Nonstop2h 23mFrontier
Sun 9/216:00 amDEN - SAT
Nonstop2h 10mFrontier
Deal found 7/29$121
This Southwest deal was found by Cheapflights users on 7/28. 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 9/205:20 pmSAT - DEN
Nonstop2h 20mSouthwest
Tue 9/231:00 pmDEN - SAT
Nonstop2h 05mSouthwest
Deal found 7/28$187
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/47:15 amSAT - DEN
1 stop5h 45mDelta
Fri 10/1012:50 amDEN - SAT
1 stop8h 00mDelta
Deal found 7/27$197
This Delta deal was found by Cheapflights users on 7/28. 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 9/1612:40 pmSAT - COS
1 stop5h 35mDelta
Tue 9/305:55 pmCOS - SAT
1 stop5h 24mDelta
Deal found 7/28$227
This American Airlines deal was found by Cheapflights users on 7/28. 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 8/206:00 amSAT - COS
1 stop5h 02mAmerican Airlines
Mon 8/255:24 pmCOS - SAT
1 stop4h 35mAmerican Airlines
Deal found 7/28$238
This American Airlines deal was found by Cheapflights users on 7/28. 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.
Tue 8/126:45 pmSAT - DRO
1 stop4h 45mAmerican Airlines
Sat 8/165:05 pmDRO - SAT
1 stop4h 54mAmerican Airlines
Deal found 7/28$238
This American Airlines deal was found by Cheapflights users on 7/28. 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 8/146:55 pmSAT - GJT
1 stop6h 26mAmerican Airlines
Thu 8/215:00 amGJT - SAT
1 stop7h 20mAmerican Airlines
Deal found 7/28$239
This Southwest deal was found by Cheapflights users on 7/28. 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 10/1612:45 pmSAT - COS
1 stop4h 50mSouthwest
Mon 10/205:00 amCOS - SAT
1 stop4h 00mSouthwest
Deal found 7/28$249
This United Airlines deal was found by Cheapflights users on 7/28. 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 8/124:30 pmSAT - ASE
1 stop5h 49mUnited Airlines
Sat 8/166:15 pmASE - SAT
1 stop4h 44mUnited Airlines
Deal found 7/28$249
This United Airlines deal was found by Cheapflights users on 7/28. 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 8/1211:15 amSAT - GJT
1 stop4h 30mUnited Airlines
Sat 8/166:00 pmGJT - SAT
1 stop4h 59mUnited Airlines
Deal found 7/28$249
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/185:00 amSAT - MTJ
1 stop5h 59mAmerican Airlines
Sat 8/2310:42 amMTJ - SAT
1 stop6h 52mAmerican Airlines
Deal found 7/27$266
This United Airlines deal was found by Cheapflights users on 7/28. 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 8/234:37 pmSAT - DRO
1 stop6h 38mUnited Airlines
Tue 8/267:05 amDRO - SAT
1 stop4h 43mUnited Airlines
Deal found 7/28$288

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Antonio to Colorado 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 29, 2025.
Use the filters below to find and compare flights from San Antonio to Colorado that are best for you.

Fly from

San Antonio

Fly to

Colorado

Route

Depart

Return

Price

San AntonioDenver

SAT - DEN

SATDEN

San Antonio

Fri 9/19

7:55 pm-9:18 pm

Nonstop2h 23m

Denver Intl

Sun 9/21

6:00 am-9:10 am

Nonstop2h 10m

$121

San AntonioDenver

SAT - DEN

SATDEN

San Antonio

Sat 9/20

5:20 pm-6:40 pm

Nonstop2h 20m

Denver Intl

Tue 9/23

1:00 pm-4:05 pm

Nonstop2h 05m

$187

San AntonioDenver

SAT - DEN

SATDEN

San Antonio

Sat 10/4

7:15 am-12:00 pm

1 stop5h 45m

Denver Intl

Fri 10/10

12:50 am-9:50 am

1 stop8h 00m

$197

San AntonioDurango

SAT - DRO

SATDRO

San Antonio

Tue 9/9

2:52 pm-6:39 pm

1 stop4h 47m

Durango La Plata County

Tue 9/16

12:26 pm-11:00 pm

2 stops9h 34m

$224

San AntonioColorado Springs

SAT - COS

SATCOS

San Antonio

Tue 9/16

12:40 pm-5:15 pm

1 stop5h 35m

Colorado Springs

Tue 9/30

5:55 pm-12:19 am

1 stop5h 24m

$227

San AntonioColorado Springs

SAT - COS

SATCOS

San Antonio

Wed 8/20

6:00 am-10:02 am

1 stop5h 02m

Colorado Springs

Mon 8/25

5:24 pm-10:59 pm

1 stop4h 35m

$238

San AntonioGrand Junction

SAT - GJT

SATGJT

San Antonio

Thu 8/14

6:55 pm-12:21 am

1 stop6h 26m

Grand Junction Regnl

Thu 8/21

5:00 am-1:20 pm

1 stop7h 20m

$239

San AntonioAspen

SAT - ASE

SATASE

San Antonio

Tue 8/12

4:30 pm-9:19 pm

1 stop5h 49m

Aspen Pitkin County

Sat 8/16

6:15 pm-11:59 pm

1 stop4h 44m

$249

San AntonioColorado Springs

SAT - COS

SATCOS

San Antonio

Thu 10/16

12:45 pm-4:35 pm

1 stop4h 50m

Colorado Springs

Mon 10/20

5:00 am-10:00 am

1 stop4h 00m

$249

San AntonioGrand Junction

SAT - GJT

SATGJT

San Antonio

Tue 8/12

11:15 am-2:45 pm

1 stop4h 30m

Grand Junction Regnl

Sat 8/16

6:00 pm-11:59 pm

1 stop4h 59m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 43 results
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Best time to book a flight from San Antonio to Colorado

Have a flexible travel schedule? Discover the best time to fly to Colorado from San Antonio 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 San Antonio to Colorado

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

Currently, October is the cheapest month in which you can book a flight from San Antonio to Colorado (average of $197). Flying from San Antonio to Colorado in March is currently the most expensive (average of $278). 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 SAT to CO?

Find hourly flight availability from San Antonio to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

When flying from San Antonio to Colorado, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from San Antonio to Colorado

Explore weekly flight availability from San Antonio to Colorado. 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 29, 2025.

The most flights from SAT to USCO are scheduled on a Monday (14 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated July 29, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from San Antonio to Colorado have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,977 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,899 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Frontier
5.9
Fair
3,238 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Colorado. 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 from for flights from San Antonio to Colorado?

    Most people fly from San Antonio (SAT) if they book a flight from San Antonio to Colorado. San Antonio is conveniently located just 7.6 mi from San Antonio’s city center.

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

    Within the past month, 194 users have taken a look at flights from San Antonio to Colorado.

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

    One-way options have recently been found by users for as low as $30 on Frontier. Other airlines that offer cheap prices include United Airlines from $79 and American Airlines from $94 one-way.

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

    The most popular route from San Antonio to Colorado is San Antonio - Denver Intl. You may also consider San Antonio - Grand Junction Regnl or San Antonio - Colorado Springs.

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

    Consider SkyWest Airlines (91%), Lufthansa (77%) or United Airlines (77%) when booking your flight. These represent the most reliable airlines when flying from San Antonio to Colorado.

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

    The cheapest flight price from San Antonio to Colorado is $73. On average you can expect to pay $1,292. The most popular route, (San Antonio - Denver Intl), can usually be booked for $148.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Antonio to Colorado 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 San Antonio to Colorado?

    Currently, October is the cheapest month in which you can book a flight from San Antonio to Colorado (average of $197). Flying from San Antonio to Colorado in March is currently the most expensive (average of $278). 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.

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Top 5 airlines flying from San Antonio to Colorado

Discover the top 5 airlines that operate flights from San Antonio to Colorado. 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 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$41Average$138FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$107Average$403FlexibilityNo cancel feeOn-time71%
DeltaCheapest$118Average$176FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$148Average$475FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$177Average$409FlexibilityNo cancel feeOn-time63%

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