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$39+ 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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — DEN
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
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 September 17, 2025.

Round-trip from

$92
(Kiwi.com)

One-way from

$39
(Trip.com)

Popular in

June

Cheapest in

October

Average price

$177

Good round-trip deal

$161 or less

Good one-way deal

$105 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. 11% potential increase in price ($25 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/17. 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 10/168:26 pmSAT - DEN
Nonstop2h 23mFrontier
Sun 10/268:00 amDEN - SAT
Nonstop2h 14mFrontier
Deal found 9/17$92
This Frontier deal was found by Cheapflights users on 9/16. 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 10/22:08 pmSAT - DEN
1 stop7h 15mFrontier
Sat 10/411:11 amDEN - SAT
Nonstop2h 16mFrontier
Deal found 9/16$99
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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.
Thu 11/138:38 pmSAT - DEN
Nonstop2h 23mFrontier
Sat 11/1511:00 amDEN - SAT
Nonstop2h 17mFrontier
Deal found 9/15$101
This CheapOair deal was found by Cheapflights users on 9/15. 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 10/185:32 pmSAT - DEN
Nonstop2h 21mFrontier
Thu 10/238:00 amDEN - SAT
Nonstop2h 14mFrontier
Deal found 9/15$102
This CheapOair deal was found by Cheapflights users on 9/16. 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 10/185:32 pmSAT - DEN
Nonstop2h 21mFrontier
Mon 10/204:21 pmDEN - SAT
Nonstop2h 14mFrontier
Deal found 9/16$105
This Cheapflightsfares deal was found by Cheapflights users on 9/16. 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.
Wed 10/223:59 pmSAT - DEN
Nonstop2h 26mFrontier
Sun 10/268:00 amDEN - SAT
Nonstop2h 14mFrontier
Deal found 9/16$108
This Frontier deal was found by Cheapflights users on 9/15. 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 10/168:26 pmSAT - DEN
Nonstop2h 23mFrontier
Wed 10/2212:00 pmDEN - SAT
Nonstop2h 14mFrontier
Deal found 9/15$109
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/1612:09 pmSAT - DEN
Nonstop2h 24mFrontier
Sat 10/251:22 pmDEN - SAT
Nonstop2h 15mFrontier
Deal found 9/15$110
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Sat 10/185:32 pmSAT - DEN
Nonstop2h 21mFrontier
Fri 10/244:27 pmDEN - SAT
Nonstop2h 14mFrontier
Deal found 9/15$113
This Kiwi.com deal was found by Cheapflights users on 9/17. 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.
Sat 10/185:32 pmSAT - DEN
Nonstop2h 21mFrontier
Sun 10/268:00 amDEN - SAT
Nonstop2h 14mFrontier
Deal found 9/17$116
This American Airlines deal was found by Cheapflights users on 9/15. 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 11/15:00 amSAT - COS
1 stop11h 58mAmerican Airlines
Thu 11/612:45 pmCOS - SAT
1 stop10h 05mAmerican Airlines
Deal found 9/15$243
This American Airlines deal was found by Cheapflights users on 9/17. 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 10/156:00 amSAT - COS
1 stop4h 46mAmerican Airlines
Wed 10/226:02 amCOS - SAT
1 stop10h 43mAmerican Airlines
Deal found 9/17$250

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 September 17, 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

Thu 12/4

4:45 pm-7:50 pm

1 stop4h 05m

Denver Intl

Sun 12/7

5:50 am-11:45 am

1 stop4h 55m

$212

San AntonioDenver

SAT - DEN

SATDEN

San Antonio

Mon 12/8

6:23 pm-12:16 am

1 stop6h 53m

Denver Intl

Fri 12/12

6:20 pm-12:40 am

1 stop5h 20m

$217

San AntonioDenver

SAT - DEN

SATDEN

San Antonio

Fri 12/5

4:51 pm-12:16 am

1 stop8h 25m

Denver Intl

Mon 12/8

4:44 pm-12:33 am

1 stop6h 49m

$217

San AntonioDenver

SAT - DEN

SATDEN

San Antonio

Fri 10/31

9:30 am-2:35 pm

2 stops6h 05m

Denver Intl

Sun 11/2

5:50 am-11:45 am

1 stop4h 55m

$222

San AntonioDenver

SAT - DEN

SATDEN

San Antonio

Tue 10/28

1:23 pm-2:45 pm

Nonstop2h 22m

Denver Intl

Fri 10/31

9:41 am-12:56 pm

Nonstop2h 15m

$227

San AntonioDenver

SAT - DEN

SATDEN

San Antonio

Sat 10/18

6:00 am-11:48 am

1 stop6h 48m

Denver Intl

Tue 10/28

6:23 pm-12:31 am

1 stop5h 08m

$237

San AntonioColorado Springs

SAT - COS

SATCOS

San Antonio

Sat 11/1

5:00 am-3:58 pm

1 stop11h 58m

Colorado Springs

Thu 11/6

12:45 pm-11:50 pm

1 stop10h 05m

$243

San AntonioDenver

SAT - DEN

SATDEN

San Antonio

Sun 11/9

8:25 pm-9:40 pm

Nonstop2h 15m

Denver Intl

Wed 11/12

3:05 pm-6:15 pm

Nonstop2h 10m

$247

San AntonioDenver

SAT - DEN

SATDEN

San Antonio

Sat 10/11

2:55 pm-9:41 pm

1 stop7h 46m

Denver Intl

Tue 10/14

6:23 pm-12:31 am

1 stop5h 08m

$247

San AntonioDenver

SAT - DEN

SATDEN

San Antonio

Wed 10/15

7:30 am-11:47 am

1 stop5h 17m

Denver Intl

Thu 10/23

3:41 pm-12:31 am

1 stop7h 50m

$247

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 60 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 September 17, 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 September 17, 2025.

The most flights from SAT to USCO 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 (7 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 September 17, 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
4,242 reviews

Overall

8.0

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

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
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

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
7,961 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

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
8,926 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

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
4,242 reviews

Overall

8.0

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

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
5.8
Fair
3,173 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

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, 172 users have taken a look at flights from San Antonio to Colorado.

  • How long is the flight from San Antonio to Colorado?

    A quick flight from San Antonio to Colorado can take about 4h 05m. Southwest provides one of the quickest options available for as low as $212. The distance from San Antonio to Colorado is about 795 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $109 on Southwest. Other airlines that offer cheap prices include Delta from $109 and American Airlines from $129 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 - Colorado Springs or San Antonio - Grand Junction Regnl.

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

    Consider Lufthansa (85%), Southwest (85%) or United Airlines (83%) 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 $72. On average you can expect to pay $663. The most popular route, (San Antonio - Denver Intl), can usually be booked for $135.

  • 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.

See more FAQs

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Alternative routes for San Antonio to Colorado

See prices for flight routes from nearby airports that may be better suited for you.
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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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$55Average$145FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$107Average$400FlexibilityNo cancel feeOn-time71%
DeltaCheapest$118Average$196FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$149Average$470FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$177Average$409FlexibilityNo cancel feeOn-time63%

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