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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 8/3. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SAT
Jul 5 — Jul 121
Sat 7/5
Sat 7/12
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 June 30, 2025.

Round-trip from

$123
(Frontier)

One-way from

$68
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$205

Good round-trip deal

$161 or less

Good one-way deal

$88 or less
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. 19% potential increase in price ($54 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 30, 2025.

This Frontier deal was found by Cheapflights users on 6/30. 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 10/24:01 pmDEN - SAT
Nonstop2h 14mFrontier
Sun 10/58:20 pmSAT - DEN
Nonstop2h 23mFrontier
Deal found 6/30$118
This Southwest deal was found by Cheapflights users on 6/30. 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 9/131:15 pmDEN - SAT
Nonstop2h 05mSouthwest
Tue 9/166:40 pmSAT - DEN
1 stop4h 50mSouthwest
Deal found 6/30$187
This American Airlines deal was found by Cheapflights users on 6/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/98:34 amDEN - SAT
1 stop6h 56mAmerican Airlines
Sat 8/1610:16 amSAT - DEN
1 stop4h 39mAmerican Airlines
Deal found 6/29$192
This Delta deal was found by Cheapflights users on 6/30. 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 8/59:15 amDEN - SAT
1 stop6h 53mDelta
Tue 8/126:30 amSAT - DEN
1 stop7h 17mDelta
Deal found 6/30$197
This American Airlines deal was found by Cheapflights users on 6/28. 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 9/255:03 pmCOS - SAT
1 stop5h 43mAmerican Airlines
Mon 10/66:12 amSAT - COS
1 stop4h 13mAmerican Airlines
Deal found 6/28$227
This United Airlines deal was found by Cheapflights users on 6/30. 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 9/43:45 pmCOS - SAT
1 stop4h 01mUnited Airlines
Mon 9/85:58 pmSAT - COS
2 stops6h 52mUnited Airlines
Deal found 6/30$232
This Southwest deal was found by Cheapflights users on 6/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/127:25 amCOS - SAT
1 stop6h 45mSouthwest
Thu 8/145:35 amSAT - COS
2 stops5h 20mSouthwest
Deal found 6/29$242
This Delta deal was found by Cheapflights users on 6/30. 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 7/305:55 pmCOS - SAT
1 stop5h 40mDelta
Sat 8/232:50 pmSAT - COS
1 stop6h 51mDelta
Deal found 6/30$245
This American Airlines deal was found by Cheapflights users on 6/27. 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.
Thu 12/112:47 pmGJT - SAT
1 stop5h 11mAmerican Airlines
Sat 12/133:33 pmSAT - GJT
1 stop6h 47mAmerican Airlines
Deal found 6/27$307
This American Airlines deal was found by Cheapflights users on 6/28. 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.
Sat 9/1311:43 amDRO - SAT
1 stop5h 59mAmerican Airlines
Thu 9/185:00 amSAT - DRO
1 stop6h 59mAmerican Airlines
Deal found 6/28$328
This United Airlines deal was found by Cheapflights users on 6/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/111:35 pmGJT - SAT
1 stop6h 19mUnited Airlines
Sat 12/134:30 pmSAT - GJT
1 stop6h 41mUnited Airlines
Deal found 6/29$333
This United Airlines deal was found by Cheapflights users on 6/28. 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 7/266:07 pmDRO - SAT
1 stop4h 52mUnited Airlines
Sat 8/25:15 amSAT - DRO
1 stop5h 36mUnited Airlines
Deal found 6/28$340

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 30, 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

Sun 7/27

3:55 pm-7:13 pm

Nonstop2h 18m

San Antonio

Thu 7/31

8:14 pm-9:45 pm

Nonstop2h 31m

$123

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Sat 9/13

1:15 pm-4:20 pm

Nonstop2h 05m

San Antonio

Tue 9/16

6:40 pm-10:30 pm

1 stop4h 50m

$187

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Sat 8/9

5:00 am-10:46 am

1 stop4h 46m

San Antonio

Sat 8/16

5:00 am-8:03 am

1 stop4h 03m

$192

DenverSan Antonio

DEN - SAT

DENSAT

Denver Intl

Tue 8/5

9:15 am-5:08 pm

1 stop6h 53m

San Antonio

Tue 8/12

6:30 am-12:47 pm

1 stop7h 17m

$197

Colorado SpringsSan Antonio

COS - SAT

COSSAT

Colorado Springs

Thu 9/25

5:03 pm-11:46 pm

1 stop5h 43m

San Antonio

Mon 10/6

6:12 am-9:25 am

1 stop4h 13m

$227

Colorado SpringsSan Antonio

COS - SAT

COSSAT

Colorado Springs

Thu 9/4

3:45 pm-8:46 pm

1 stop4h 01m

San Antonio

Mon 9/8

5:58 pm-11:50 pm

2 stops6h 52m

$232

Colorado SpringsSan Antonio

COS - SAT

COSSAT

Colorado Springs

Tue 8/12

7:25 am-3:10 pm

1 stop6h 45m

San Antonio

Thu 8/14

5:35 am-9:55 am

2 stops5h 20m

$242

Colorado SpringsSan Antonio

COS - SAT

COSSAT

Colorado Springs

Wed 7/30

5:55 pm-12:35 am

1 stop5h 40m

San Antonio

Sat 8/23

2:50 pm-8:41 pm

1 stop6h 51m

$245

Grand JunctionSan Antonio

GJT - SAT

GJTSAT

Grand Junction Regnl

Thu 12/11

2:47 pm-8:58 pm

1 stop5h 11m

San Antonio

Sat 12/13

3:33 pm-9:20 pm

1 stop6h 47m

$307

DurangoSan Antonio

DRO - SAT

DROSAT

Durango La Plata County

Sat 9/13

4:59 pm-11:00 pm

1 stop5h 01m

San Antonio

Thu 9/18

5:00 am-11:56 am

2 stops7h 56m

$324

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

Showing 1-10 of 29 results
1
2
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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, 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 30, 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 30, 2025.

The most flights from USCO to SAT are scheduled on a Monday (15 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (8 on average).

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 30, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from Colorado to San Antonio 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
4,278 reviews

Food

7.0

Overall

8.0

Comfort

8.0

Entertainment

7.6

Crew

8.6

Boarding

8.2

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
4,278 reviews
Southwest
8.0
Very good
4,278 reviews

Food

7.0

Overall

8.0

Comfort

8.0

Entertainment

7.6

Crew

8.6

Boarding

8.2

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
7,973 reviews
Southwest
8.0
Very good
4,278 reviews

Food

7.0

Overall

8.0

Comfort

8.0

Entertainment

7.6

Crew

8.6

Boarding

8.2

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
8,852 reviews
Southwest
8.0
Very good
4,278 reviews

Food

7.0

Overall

8.0

Comfort

8.0

Entertainment

7.6

Crew

8.6

Boarding

8.2

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
4,278 reviews

Food

7.0

Overall

8.0

Comfort

8.0

Entertainment

7.6

Crew

8.6

Boarding

8.2

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
5.9
Fair
3,290 reviews
Southwest
8.0
Very good
4,278 reviews

Food

7.0

Overall

8.0

Comfort

8.0

Entertainment

7.6

Crew

8.6

Boarding

8.2

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 22 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 $68. Users have also found prices from $89 and $94 on United Airlines and American Airlines, 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 Durango La Plata County - San Antonio as they are the most popular.

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

    Consider Air Canada (71%), United Airlines (69%) or Frontier (67%) 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 $181 for a flight from Colorado to San Antonio. The cheapest flight overall is $69 while the most popular route, (Denver Intl - San Antonio) is currently priced at $144.

  • 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

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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 June 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$48Average$166FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$135Average$435FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$158Average$383FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$198Average$345FlexibilityNo cancel feeOn-time63%

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