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$28+ 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 1/25. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — DEN
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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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 November 26, 2025.

This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/43:06 pmSAT - DEN
Nonstop2h 28mFrontier
Wed 1/711:42 amDEN - SAT
Nonstop2h 18mFrontier
Deal found 11/25$102
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/113:06 pmSAT - DEN
Nonstop2h 28mFrontier
Sun 12/146:12 amDEN - SAT
Nonstop2h 18mFrontier
Deal found 11/24$104
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 12/117:56 pmSAT - DEN
Nonstop2h 24mFrontier
Sat 12/208:05 amDEN - SAT
Nonstop2h 16mFrontier
Deal found 11/25$123
This eDestinos 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/117:56 pmSAT - DEN
Nonstop2h 24mFrontier
Wed 12/179:44 pmDEN - SAT
1 stop10h 39mFrontier
Deal found 11/25$129
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/117:56 pmSAT - DEN
Nonstop2h 24mFrontier
Mon 12/153:43 pmDEN - SAT
Nonstop2h 15mFrontier
Deal found 11/25$134
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.
Fri 12/127:55 pmSAT - DEN
Nonstop2h 24mFrontier
Sun 12/146:12 amDEN - SAT
Nonstop2h 18mFrontier
Deal found 11/24$136
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:45 amSAT - DEN
Nonstop2h 24mFrontier
Tue 1/611:42 amDEN - SAT
Nonstop2h 18mFrontier
Deal found 11/24$138
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.
Wed 12/104:34 pmSAT - DRO
1 stop6h 40mUnited Airlines
Sun 12/145:15 amDRO - SAT
1 stop6h 51mUnited Airlines
Deal found 11/25$200
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:00 amSAT - GJT
1 stop5h 08mAmerican Airlines
Sun 12/144:26 pmGJT - SAT
1 stop5h 26mAmerican Airlines
Deal found 11/25$211
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.
Thu 12/48:39 amSAT - DRO
1 stop4h 58mUnited Airlines
Mon 12/81:39 pmDRO - SAT
1 stop6h 14mUnited Airlines
Deal found 11/24$224
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/249:12 amSAT - COS
1 stop7h 42mAmerican Airlines
Thu 12/258:15 amCOS - SAT
1 stop10h 59mAmerican Airlines
Deal found 11/25$250
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.
Thu 12/185:20 amSAT - ASE
1 stop4h 48mUnited Airlines
Sun 12/217:18 amASE - SAT
1 stop7h 35mUnited Airlines
Deal found 11/26$268

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 November 26, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$86
(FlightHub)

One-way from

$28
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$206

Good round-trip deal

$146 or less

Good one-way deal

$99 or less
Provider with most accurate pricing for San Antonio-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Antonio-Denver Intl flights.
Search Deals
From San Antonio to Colorado
Search Deals
One-way flight from San Antonio to Colorado
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from San Antonio to Colorado.
Search Deals
Price to beat on a one-way flight from San Antonio to Colorado.
Search Deals

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 November 26, 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 1/15

6:10 am-7:30 am

Nonstop2h 20m

Denver Intl

Tue 1/20

6:45 pm-9:55 pm

Nonstop2h 10m

$137

San AntonioDenver

SAT - DEN

SATDEN

San Antonio

Mon 3/2

6:30 pm-7:50 pm

Nonstop2h 20m

Denver Intl

Wed 3/4

1:55 pm-9:35 pm

2 stops6h 40m

$172

San AntonioDenver

SAT - DEN

SATDEN

San Antonio

Wed 1/7

1:03 pm-7:56 pm

1 stop7h 53m

Denver Intl

Thu 1/8

1:15 pm-8:43 pm

1 stop6h 28m

$177

San AntonioDenver

SAT - DEN

SATDEN

San Antonio

Mon 3/2

6:24 pm-12:25 am

1 stop7h 01m

Denver Intl

Tue 3/3

12:59 am-10:00 am

1 stop8h 01m

$177

San AntonioDenver

SAT - DEN

SATDEN

San Antonio

Thu 1/8

4:29 pm-10:55 pm

1 stop7h 26m

Denver Intl

Sat 1/10

7:05 am-3:21 pm

1 stop7h 16m

$177

San AntonioDenver

SAT - DEN

SATDEN

San Antonio

Fri 1/9

1:03 pm-7:56 pm

1 stop7h 53m

Denver Intl

Wed 1/14

2:42 pm-9:34 pm

1 stop5h 52m

$177

San AntonioDenver

SAT - DEN

SATDEN

San Antonio

Fri 1/9

7:45 am-1:37 pm

1 stop6h 52m

Denver Intl

Tue 1/13

2:42 pm-9:34 pm

1 stop5h 52m

$177

San AntonioDenver

SAT - DEN

SATDEN

San Antonio

Wed 1/7

7:45 am-1:37 pm

1 stop6h 52m

Denver Intl

Mon 1/12

2:42 pm-11:23 pm

1 stop7h 41m

$177

San AntonioDenver

SAT - DEN

SATDEN

San Antonio

Sat 1/10

4:29 pm-10:55 pm

1 stop7h 26m

Denver Intl

Tue 1/13

7:00 am-1:48 pm

1 stop5h 48m

$177

San AntonioDenver

SAT - DEN

SATDEN

San Antonio

Sat 1/10

4:29 pm-10:55 pm

1 stop7h 26m

Denver Intl

Sun 1/11

6:00 am-3:21 pm

1 stop8h 21m

$177

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/25

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, March is the cheapest month in which you can book a flight from San Antonio to Colorado (average of $38). Flying from San Antonio to Colorado in June is currently the most expensive (average of $98). 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 November 26, 2025.

It’s optimal to fly from San Antonio to Colorado in the evening. By choosing this option you can save up to 8% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from San Antonio to Colorado?

Use this chart to determine the cheapest time to fly round-trip from San Antonio to Colorado. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Antonio to Colorado flight should consider departing on Sunday evenings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 November 26, 2025.

The most flights from SAT to USCO are scheduled on a Monday (19 on average). You will have fewer flight options on Thursday, 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 November 26, 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
4,254 reviews

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

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
4,254 reviews
Southwest
8.0
Very good
4,254 reviews

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

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
7.9
Good
7,999 reviews
Southwest
8.0
Very good
4,254 reviews

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

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
9,046 reviews
Southwest
8.0
Very good
4,254 reviews

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

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
11,038 reviews
Southwest
8.0
Very good
4,254 reviews

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

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
5.8
Fair
3,099 reviews
Southwest
8.0
Very good
4,254 reviews

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

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, 223 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 2h 20m. Southwest provides one of the quickest options available for as low as $137. 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 $28 on Frontier. Other airlines that offer cheap prices include Southwest from $59 and United Airlines from $59 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 - Aspen Pitkin County.

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

    Consider Sun Country Air (100%), Frontier (91%) or Air Canada (86%) 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 $66. On average you can expect to pay $750. The most popular route, (San Antonio - Denver Intl), can usually be booked for $109.

  • 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, March is the cheapest month in which you can book a flight from San Antonio to Colorado (average of $38). Flying from San Antonio to Colorado in June is currently the most expensive (average of $98). 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 November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$152FlexibilityNo cancel feeOn-time62%
DeltaCheapest$98Average$276FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$106Average$413FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$155Average$453FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$177Average$393FlexibilityNo cancel feeOn-time63%

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