$78+ Cheap flights from Colorado to San Antonio (SAT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SAT
Oct 9 — Oct 161
Round-trip
1 adult, Economy
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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
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Cheapest flights from Colorado to San AntonioExplore 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 September 9, 2026.
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 September 9, 2026.
This Priceline deal was found by Cheapflights users on 9/6. 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.
Mon 10/194:19 pm -
Nonstop2h 07m
Thu 10/228:21 pm -
Nonstop2h 28m
Deal found 9/6![Frontier logo]()
$153
This Frontier deal was found by Cheapflights users on 9/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/144:06 pm -
Nonstop2h 19m
Tue 11/178:20 pm -
Nonstop2h 29m
Deal found 9/9![Frontier logo]()
$154
This Priceline deal was found by Cheapflights users on 9/7. 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 10/294:06 pm -
Nonstop2h 19m
Mon 11/28:20 pm -
Nonstop2h 29m
Deal found 9/7![Frontier logo]()
$158
This Frontier deal was found by Cheapflights users on 9/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/144:19 pm -
Nonstop2h 07m
Sat 10/178:21 pm -
Nonstop2h 28m
Deal found 9/9![Frontier logo]()
$160
This Expedia deal was found by Cheapflights users on 9/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:30 am -
1 stop13h 04m
Tue 12/112:00 pm -
Nonstop2h 21m
Deal found 9/5![Frontier logo]()
$163
This Expedia deal was found by Cheapflights users on 9/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/24:13 pm -
Nonstop2h 12m
Fri 10/98:21 pm -
Nonstop2h 28m
Deal found 9/4![Frontier logo]()
$164
This Expedia deal was found by Cheapflights users on 9/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/264:13 pm -
Nonstop2h 12m
Mon 9/289:50 pm -
1 stop21h 43m
Deal found 9/4![Frontier logo]()
$165
This Super.com deal was found by Cheapflights users on 9/8. 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.
Mon 10/54:13 pm -
Nonstop2h 12m
Wed 10/78:20 pm -
Nonstop2h 29m
Deal found 9/8![Frontier logo]()
$166
This FlightHub deal was found by Cheapflights users on 9/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/154:19 pm -
Nonstop2h 07m
Sat 10/178:21 pm -
Nonstop2h 28m
Deal found 9/9![Frontier logo]()
$167
This CheapOair deal was found by Cheapflights users on 9/4. 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 10/224:19 pm -
Nonstop2h 07m
Mon 10/268:21 pm -
Nonstop2h 28m
Deal found 9/4![Frontier logo]()
$170
This FlightHub deal was found by Cheapflights users on 9/4. 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.
Wed 10/284:06 pm -
Nonstop2h 19m
Sat 10/318:20 pm -
Nonstop2h 29m
Deal found 9/4![Frontier logo]()
$171
This Southwest deal was found by Cheapflights users on 9/8. 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.
Mon 12/212:40 pm -
Nonstop2h 00m
Wed 1/611:30 am -
1 stop5h 25m
Deal found 9/8![Southwest logo]()
$299
Best flights from Colorado to San AntonioDiscover carefully curated flight deals from Colorado to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
Discover carefully curated flight deals from Colorado to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
This Delta deal was found by Cheapflights users on 9/8. 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 2/195:40 am -
1 stop6h 54m
Fri 2/196:05 pm -
1 stop5h 28m
Deal found 9/8![Delta logo]()
$297
This Southwest deal was found by Cheapflights users on 9/8. 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.
Mon 12/212:40 pm -
Nonstop2h 00m
Wed 1/611:30 am -
1 stop5h 25m
Deal found 9/8![Southwest logo]()
$299
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Tue 11/33:20 pm -
1 stop4h 33m
Mon 11/94:48 pm -
1 stop4h 48m
Deal found 9/9![United Airlines logo]()
$308
This American Airlines deal was found by Cheapflights users on 9/4. 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.
Fri 10/305:08 pm -
1 stop4h 49m
Sun 11/14:27 pm -
1 stop6h 39m
Deal found 9/4![American Airlines logo]()
$308
This American Airlines deal was found by Cheapflights users on 9/4. 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 10/295:08 pm -
1 stop5h 51m
Sun 11/16:00 am -
1 stop7h 28m
Deal found 9/4![American Airlines logo]()
$308
This Southwest deal was found by Cheapflights users on 9/8. 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 11/36:55 am -
1 stop4h 10m
Mon 11/166:15 pm -
1 stop4h 25m
Deal found 9/8![Southwest logo]()
$309
This United Airlines deal was found by Cheapflights users on 9/7. 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 10/1010:25 am -
1 stop5h 27m
Sat 10/175:30 am -
1 stop5h 07m
Deal found 9/7![United Airlines logo]()
$328
This Delta deal was found by Cheapflights users on 9/4. 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 10/211:33 am -
1 stop4h 39m
Sun 10/46:35 am -
1 stop5h 03m
Deal found 9/4![Delta logo]()
$339
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/291:35 pm -
1 stop6h 18m
Sun 11/15:30 am -
2 stops8h 03m
Deal found 9/4![United Airlines logo]()
$334
This American Airlines deal was found by Cheapflights users on 9/7. 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 11/311:59 am -
2 stops9h 57m
Mon 11/95:47 pm -
1 stop5h 19m
Deal found 9/7![American Airlines logo]()
$342
This Southwest deal was found by Cheapflights users on 9/8. 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 10/233:05 pm -
2 stops5h 10m
Mon 10/268:45 pm -
1 stop4h 30m
Deal found 9/8![Southwest logo]()
$346
This American Airlines deal was found by Cheapflights users on 9/6. 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 9/2312:01 pm -
2 stops8h 58m
Sun 9/275:00 am -
1 stop6h 25m
Deal found 9/6![American Airlines logo]()
$369
This Southwest deal was found by Cheapflights users on 9/5. 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 9/2612:15 pm -
1 stop5h 30m
Mon 9/282:55 pm -
1 stop8h 00m
Deal found 9/5![Southwest logo]()
$371
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/239:24 am -
1 stop6h 31m
Sun 9/275:30 am -
2 stops6h 14m
Deal found 9/8![United Airlines logo]()
$374
This Southwest deal was found by Cheapflights users on 9/4. 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 10/1311:15 am -
1 stop11h 00m
Fri 10/166:45 pm -
1 stop3h 45m
Deal found 9/4![Southwest logo]()
$372
This American Airlines deal was found by Cheapflights users on 9/4. 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 2/81:01 pm -
1 stop5h 45m
Sun 2/145:00 am -
1 stop5h 41m
Deal found 9/4![American Airlines logo]()
$384
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/235:50 pm -
1 stop5h 07m
Sun 9/275:30 am -
2 stops8h 03m
Deal found 9/8![United Airlines logo]()
$384
This Southwest deal was found by Cheapflights users on 9/5. 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 9/291:15 pm -
2 stops7h 20m
Wed 9/301:30 pm -
1 stop7h 45m
Deal found 9/5![Southwest logo]()
$382
This United Airlines deal was found by Cheapflights users on 9/8. 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 1/237:00 am -
1 stop5h 05m
Tue 1/264:45 pm -
1 stop4h 55m
Deal found 9/8![United Airlines logo]()
$388
This Southwest deal was found by Cheapflights users on 9/8. 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 10/91:55 pm -
2 stops5h 35m
Mon 10/128:45 pm -
1 stop4h 30m
Deal found 9/8![Southwest logo]()
$387
This United Airlines deal was found by Cheapflights users on 9/9. 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 10/91:37 pm -
2 stops8h 14m
Sun 10/115:30 am -
1 stop5h 07m
Deal found 9/9![United Airlines logo]()
$396
This American Airlines deal was found by Cheapflights users on 9/4. 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.
Fri 10/165:00 pm -
1 stop5h 59m
Sun 10/185:00 am -
2 stops7h 31m
Deal found 9/4![American Airlines logo]()
$439
This Southwest deal was found by Cheapflights users on 9/5. 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 11/58:30 am -
Nonstop2h 15m
Mon 11/97:20 am -
1 stop5h 55m
Deal found 9/5![Southwest logo]()
$395
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/176:06 pm -
1 stop4h 52m
Wed 10/215:30 am -
1 stop4h 19m
Deal found 9/8![United Airlines logo]()
$399
This Southwest deal was found by Cheapflights users on 9/7. 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.
Wed 10/74:55 pm -
1 stop4h 20m
Sun 10/116:15 am -
2 stops5h 30m
Deal found 9/7![Southwest logo]()
$399
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/166:06 pm -
1 stop4h 52m
Sun 10/189:00 am -
1 stop4h 31m
Deal found 9/4![United Airlines logo]()
$412
This Southwest deal was found by Cheapflights users on 9/7. 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 2/202:45 pm -
2 stops7h 45m
Mon 2/226:25 am -
Nonstop2h 15m
Deal found 9/7![Southwest logo]()
$400
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/21:34 pm -
2 stops8h 17m
Sun 10/45:30 am -
1 stop6h 14m
Deal found 9/4![United Airlines logo]()
$424
This Southwest deal was found by Cheapflights users on 9/5. 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 10/61:15 pm -
1 stop4h 10m
Tue 10/136:30 pm -
2 stops6h 20m
Deal found 9/5![Southwest logo]()
$406
This Southwest deal was found by Cheapflights users on 9/7. 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 10/271:15 pm -
1 stop4h 10m
Sat 10/319:30 am -
2 stops7h 10m
Deal found 9/7![Southwest logo]()
$406
Last-minute flights from Colorado to San AntonioDiscover last-minute flight deals from Colorado to San Antonio. Data last updated September 9, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado to San Antonio. Data last updated September 9, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 9/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/264:13 pm -
Nonstop2h 12m
Mon 9/289:50 pm -
1 stop21h 43m
Deal found 9/4![Frontier logo]()
$165
This Expedia deal was found by Cheapflights users on 9/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/24:13 pm -
Nonstop2h 12m
Fri 10/98:21 pm -
Nonstop2h 28m
Deal found 9/4![Frontier logo]()
$164
This Super.com deal was found by Cheapflights users on 9/8. 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.
Mon 10/54:13 pm -
Nonstop2h 12m
Wed 10/78:20 pm -
Nonstop2h 29m
Deal found 9/8![Frontier logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 10/84:19 pm -
Nonstop2h 07m
Wed 10/148:21 pm -
Nonstop2h 28m
Deal found 9/5![Frontier logo]()
$173
This Frontier deal was found by Cheapflights users on 9/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/144:19 pm -
Nonstop2h 07m
Sat 10/178:21 pm -
Nonstop2h 28m
Deal found 9/9![Frontier logo]()
$160
This FlightHub deal was found by Cheapflights users on 9/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/154:19 pm -
Nonstop2h 07m
Sat 10/178:21 pm -
Nonstop2h 28m
Deal found 9/9![Frontier logo]()
$167
This Super.com deal was found by Cheapflights users on 9/9. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/164:19 pm -
Nonstop2h 07m
Mon 10/198:21 pm -
Nonstop2h 28m
Deal found 9/9![Frontier logo]()
$176
This Priceline deal was found by Cheapflights users on 9/6. 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.
Mon 10/194:19 pm -
Nonstop2h 07m
Thu 10/228:21 pm -
Nonstop2h 28m
Deal found 9/6![Frontier logo]()
$153
This CheapOair deal was found by Cheapflights users on 9/4. 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 10/224:19 pm -
Nonstop2h 07m
Mon 10/268:21 pm -
Nonstop2h 28m
Deal found 9/4![Frontier logo]()
$170
This FlightHub deal was found by Cheapflights users on 9/4. 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.
Wed 10/284:06 pm -
Nonstop2h 19m
Sat 10/318:20 pm -
Nonstop2h 29m
Deal found 9/4![Frontier logo]()
$171
This Priceline deal was found by Cheapflights users on 9/7. 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 10/294:06 pm -
Nonstop2h 19m
Mon 11/28:20 pm -
Nonstop2h 29m
Deal found 9/7![Frontier logo]()
$158
This American Airlines deal was found by Cheapflights users on 9/4. 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 10/295:08 pm -
1 stop5h 51m
Sun 11/16:00 am -
1 stop7h 28m
Deal found 9/4![American Airlines logo]()
$308
One-way flights from Colorado to San AntonioSearch for one-way flight options from Colorado to San Antonio. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
Search for one-way flight options from Colorado to San Antonio. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
This Super.com deal was found by Cheapflights users on 9/9. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/34:13 pm -
Nonstop2h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$78
This Frontier deal was found by Cheapflights users on 9/8. 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.
Sat 10/104:19 pm -
Nonstop2h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$80
This Super.com deal was found by Cheapflights users on 9/8. 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.
Wed 10/74:13 pm -
Nonstop2h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$83
This Super.com deal was found by Cheapflights users on 9/8. 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 10/24:13 pm -
Nonstop2h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$92
This Super.com deal was found by Cheapflights users on 9/8. 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 10/94:19 pm -
Nonstop2h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$93
This Frontier deal was found by Cheapflights users on 9/8. 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.
Mon 10/54:13 pm -
Nonstop2h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$94
This CheapOair deal was found by Cheapflights users on 9/8. 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.
Fri 10/303:57 pm -
Nonstop2h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$95
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 12/107:50 am -
Nonstop2h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$96
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Tue 11/34:06 pm -
Nonstop2h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$98
This Frontier deal was found by Cheapflights users on 9/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/63:57 pm -
Nonstop2h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$100
This Frontier deal was found by Cheapflights users on 9/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/97:50 am -
Nonstop2h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$104
This Delta deal was found by Cheapflights users on 9/9. 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.
Mon 10/56:11 pm -
1 stop5h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Delta logo]()
$155
Find 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 September 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $153 (Priceline) |
One-way from | $78 (Super.com) |
Popular in | July |
Cheapest in | January |
Average price | $249 |
Good round-trip deal | $196 or less |
Good one-way deal | $146 or less |
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 7,457,451 searches. Data last updated September 9, 2026.
Use the filters below to find and compare flights from Colorado to San Antonio that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
DenverSan Antonio
DEN Denver Intl - SAT San Antonio
DENSAT
Denver Intl
Fri 10/9
8:50 pm-11:55 pm
Nonstop2h 05m
San Antonio
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$135
DenverSan Antonio
DEN Denver Intl - SAT San Antonio
DENSAT
Denver Intl
Sat 11/14
6:00 am-3:47 pm
1 stop8h 47m
San Antonio
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$139
DenverSan Antonio
DEN Denver Intl - SAT San Antonio
DENSAT
Denver Intl
Sat 11/7
11:05 am-5:25 pm
2 stops5h 20m
San Antonio
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$144
DenverSan Antonio
DEN Denver Intl - SAT San Antonio
DENSAT
Denver Intl
Fri 11/6
6:00 pm-12:30 am
1 stop5h 30m
San Antonio
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$149
Colorado SpringsSan Antonio
COS Colorado Springs - SAT San Antonio
COSSAT
Colorado Springs
Fri 12/4
6:05 pm-12:27 am
1 stop5h 22m
San Antonio
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$173
Colorado SpringsSan Antonio
COS Colorado Springs - SAT San Antonio
COSSAT
Colorado Springs
Sat 3/6
5:55 pm-12:46 am
1 stop5h 51m
San Antonio
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$179
Colorado SpringsSan Antonio
COS Colorado Springs - SAT San Antonio
COSSAT
Colorado Springs
Tue 3/2
8:00 am-5:24 pm
1 stop8h 24m
San Antonio
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$184
Colorado SpringsSan Antonio
COS Colorado Springs - SAT San Antonio
COSSAT
Colorado Springs
Wed 3/3
1:40 pm-10:27 pm
1 stop7h 47m
San Antonio
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$184
Colorado SpringsSan Antonio
COS Colorado Springs - SAT San Antonio
COSSAT
Colorado Springs
Fri 12/4
1:40 pm-9:40 pm
2 stops7h 00m
San Antonio
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$191
Colorado SpringsSan Antonio
COS Colorado Springs - SAT San Antonio
COSSAT
Colorado Springs
Mon 10/12
4:20 pm-9:15 pm
1 stop3h 55m
San Antonio
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$195
Showing 1-10 of 58 resultsSorted by cheapest first
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.
DEN-SAT
COS-SAT
DRO-SAT
GJT-SAT
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
USCO-SAT
DEN-SAT
COS-SAT
DRO-SAT
GJT-SAT
What is the cheapest month to book a flight from Colorado to San Antonio?
Currently, January is the cheapest month in which you can book a flight from Colorado to San Antonio (average of $211). Flying from Colorado to San Antonio in July is currently the most expensive (average of $387). 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 September 9, 2026.
A simple way to save on the total cost of your ticket is to fly from Colorado to San Antonio in the evening. If you’re flexible enough to do this you can expect to save up to 45% on your trip compared to booking a flight in the morning.
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 September 9, 2026.
The most flights from USCO to SAT are scheduled on a Monday (16 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).
How much does it cost to fly round-trip from Colorado to San Antonio?
Airfare is below average for this route at the moment.
Colorado to San Antonio flights typically cost between $169 and $359 in October.The cheapest round-trip price found within the last 5 days was $153 on Frontier (Oct 19-Oct 22).
How far ahead should I book a flight from Colorado to San Antonio?
The best time to book flights from Colorado to San Antonio is 54 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest day to fly from Colorado to San Antonio?
Use this chart to determine the cheapest time to fly round-trip from Colorado to San Antonio. Price data was last updated on December 6, 2025.
Travelers seeking maximum savings on their Colorado to San Antonio flight should consider departing on Friday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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.
Traveling to a place near San Antonio?
Book flights to San Antonio if you plan to visit one of these locationsNew Braunfels
Kerrville
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Alternative routes for Colorado to San Antonio
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Complete your trip
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Search flights from Colorado to San Antonio by cabin class
Find flights from Colorado to San Antonio, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Colorado and San Antonio flights
Browse other Colorado and San Antonio flight options. Last updated on September 9, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San Antonio
Explore flights to San Antonio departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 9, 2026.
Colorado to San Antonio flights
Consider these flights traveling from Colorado to San Antonio.
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 7,457,451 searches. Data last updated September 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$70 | Average$203 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$145 | Average$370 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$197 | Average$370 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$200 | Average$366 | FlexibilityNo cancel fee | On-time71% |