$98+ Cheap flights from Colorado to San Francisco (SFO)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SFO
Oct 1 — Oct 81
Round-trip
1 adult, Economy
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Find cheap flights from Colorado to San Francisco 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 Francisco
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Cheapest flights from Colorado to San FranciscoExplore the most affordable flight options available from Colorado to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 1, 2026.
Explore the most affordable flight options available from Colorado to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 1, 2026.
This Frontier deal was found by Cheapflights users on 8/31. 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 10/310:29 pm -
Nonstop2h 45m
Sat 10/106:00 am -
Nonstop2h 46m
Deal found 8/31![Frontier logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:39 pm -
Nonstop2h 56m
Thu 9/249:42 am -
Nonstop2h 47m
Deal found 8/27![Frontier logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 8/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2810:50 pm -
2 stops36h 32m
Fri 10/24:21 pm -
1 stop16h 38m
Deal found 8/28![Frontier logo]()
$174
This Cheapflightsfares deal was found by Cheapflights users on 8/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3010:29 pm -
Nonstop2h 45m
Sun 10/49:42 am -
Nonstop2h 47m
Deal found 8/28![Frontier logo]()
$175
This Cheapflightsfares deal was found by Cheapflights users on 8/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:30 am -
1 stop6h 49m
Wed 9/309:00 am -
1 stop23h 32m
Deal found 8/27![Frontier logo]()
$176
This Frontier deal was found by Cheapflights users on 8/31. 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 9/3010:29 pm -
Nonstop2h 45m
Mon 10/56:04 am -
Nonstop2h 42m
Deal found 8/31![Frontier logo]()
$177
This Frontier deal was found by Cheapflights users on 8/31. 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 9/308:59 am -
Nonstop2h 48m
Sat 10/1011:59 pm -
1 stop7h 20m
Deal found 8/31![Frontier logo]()
$178
This Frontier deal was found by Cheapflights users on 8/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1510:50 pm -
1 stop10h 24m
Wed 9/3011:42 am -
Nonstop2h 48m
Deal found 8/27![Frontier logo]()
$179
This Super.com deal was found by Cheapflights users on 8/26. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/109:16 am -
Nonstop2h 49m
Sun 10/116:00 am -
Nonstop2h 46m
Deal found 8/26![Frontier logo]()
$180
This Frontier deal was found by Cheapflights users on 8/30. 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.
Sat 10/109:16 am -
Nonstop2h 49m
Thu 10/157:13 pm -
Nonstop2h 46m
Deal found 8/30![Frontier logo]()
$182
This Frontier deal was found by Cheapflights users on 8/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1710:55 pm -
1 stop11h 59m
Wed 10/2112:00 pm -
Nonstop2h 43m
Deal found 8/28![Frontier logo]()
$183
This American Airlines deal was found by Cheapflights users on 8/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1412:01 pm -
1 stop5h 09m
Sat 10/175:45 am -
1 stop4h 51m
Deal found 8/30![American Airlines logo]()
$241
Best flights from Colorado to San FranciscoDiscover carefully curated flight deals from Colorado to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 1, 2026.
Discover carefully curated flight deals from Colorado to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 1, 2026.
This United Airlines deal was found by Cheapflights users on 8/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:06 pm -
1 stop5h 45m
Sat 10/176:15 am -
1 stop5h 16m
Deal found 8/27![United Airlines logo]()
$272
This Delta deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:41 am -
2 stops6h 44m
Sat 9/262:30 pm -
2 stops6h 27m
Deal found 8/27![Delta logo]()
$305
This Southwest deal was found by Cheapflights users on 8/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/228:15 am -
2 stops8h 55m
Tue 12/2910:15 am -
2 stops8h 30m
Deal found 8/27![Southwest logo]()
$309
This American Airlines deal was found by Cheapflights users on 8/31. 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 9/306:03 am -
2 stops10h 27m
Wed 10/74:10 pm -
1 stop5h 12m
Deal found 8/31![American Airlines logo]()
$333
This Alaska Airlines deal was found by Cheapflights users on 8/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/192:56 pm -
2 stops9h 13m
Sun 11/224:23 pm -
1 stop6h 33m
Deal found 8/28![Alaska Airlines logo]()
$357
This United Airlines deal was found by Cheapflights users on 8/30. 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.
Sat 9/267:00 am -
1 stop5h 23m
Sat 10/176:15 am -
1 stop5h 16m
Deal found 8/30![United Airlines logo]()
$280
This Kiwi.com deal was found by Cheapflights users on 8/31. 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 9/1611:55 am -
2 stops13h 19m
Sun 9/201:10 pm -
1 stop25h 55m
Deal found 8/31![Multiple Airlines logo]()
$592
This United Airlines deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:07 pm -
1 stop5h 48m
Sat 10/34:25 pm -
1 stop4h 41m
Deal found 8/28![United Airlines logo]()
$280
This Southwest deal was found by Cheapflights users on 8/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/259:10 am -
2 stops9h 25m
Sat 10/312:30 pm -
1 stop4h 50m
Deal found 8/27![Southwest logo]()
$314
This Delta deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/166:08 pm -
1 stop6h 51m
Thu 12/39:59 am -
1 stop6h 24m
Deal found 8/27![Delta logo]()
$325
This Southwest deal was found by Cheapflights users on 8/31. 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 10/58:35 am -
2 stops9h 25m
Fri 10/911:45 am -
1 stop6h 45m
Deal found 8/31![Southwest logo]()
$324
This Delta deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/246:11 pm -
1 stop6h 48m
Tue 9/295:19 pm -
1 stop4h 06m
Deal found 8/27![Delta logo]()
$325
This United Airlines deal was found by Cheapflights users on 8/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/226:15 pm -
Nonstop2h 45m
Tue 12/295:00 am -
1 stop6h 41m
Deal found 8/27![United Airlines logo]()
$299
This Southwest deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/198:55 am -
1 stop6h 05m
Wed 11/257:35 am -
2 stops11h 10m
Deal found 8/28![Southwest logo]()
$324
This Delta deal was found by Cheapflights users on 8/31. 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 9/167:41 am -
1 stop5h 38m
Wed 9/2311:58 am -
2 stops8h 59m
Deal found 8/31![Delta logo]()
$325
This United Airlines deal was found by Cheapflights users on 8/31. 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.
Mon 12/75:55 pm -
1 stop5h 48m
Sat 12/126:15 am -
1 stop5h 09m
Deal found 8/31![United Airlines logo]()
$308
This Southwest deal was found by Cheapflights users on 8/31. 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 9/258:15 pm -
1 stop4h 15m
Tue 9/295:50 am -
2 stops7h 10m
Deal found 8/31![Southwest logo]()
$327
This Delta deal was found by Cheapflights users on 8/31. 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 9/116:11 pm -
1 stop5h 50m
Wed 9/235:19 pm -
1 stop4h 06m
Deal found 8/31![Delta logo]()
$346
This United Airlines deal was found by Cheapflights users on 8/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:30 am -
1 stop4h 51m
Mon 10/265:00 am -
1 stop4h 53m
Deal found 8/27![United Airlines logo]()
$325
This Alaska Airlines deal was found by Cheapflights users on 8/31. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/65:26 pm -
2 stops20h 30m
Wed 2/37:21 am -
2 stops9h 25m
Deal found 8/31![Alaska Airlines logo]()
$479
This Southwest deal was found by Cheapflights users on 8/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/35:25 pm -
1 stop5h 10m
Tue 10/69:30 am -
2 stops7h 35m
Deal found 8/27![Southwest logo]()
$330
This Delta deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/178:20 am -
1 stop5h 00m
Wed 10/216:20 am -
2 stops9h 36m
Deal found 8/27![Delta logo]()
$348
This United Airlines deal was found by Cheapflights users on 8/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/261:29 pm -
1 stop4h 54m
Sat 10/32:20 pm -
1 stop4h 49m
Deal found 8/27![United Airlines logo]()
$325
This Southwest deal was found by Cheapflights users on 8/31. 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 10/245:40 am -
2 stops7h 35m
Tue 10/2712:15 pm -
2 stops7h 55m
Deal found 8/31![Southwest logo]()
$335
This Delta deal was found by Cheapflights users on 8/30. 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.
Sat 10/36:06 pm -
1 stop5h 55m
Tue 10/61:20 pm -
1 stop5h 14m
Deal found 8/30![Delta logo]()
$367
This Alaska Airlines deal was found by Cheapflights users on 9/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/136:26 pm -
2 stops15h 13m
Wed 2/178:00 am -
2 stops8h 46m
Deal found 9/1![Alaska Airlines logo]()
$560
This Southwest deal was found by Cheapflights users on 8/31. 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 9/215:10 pm -
1 stop7h 00m
Tue 9/298:35 am -
2 stops6h 25m
Deal found 8/31![Southwest logo]()
$350
This Kiwi.com deal was found by Cheapflights users on 8/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/147:15 am -
1 stop17h 59m
Fri 9/1811:58 pm -
2 stops10h 37m
Deal found 8/30![Multiple Airlines logo]()
$622
This United Airlines deal was found by Cheapflights users on 8/31. 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 9/157:15 am -
1 stop5h 08m
Sat 9/1910:19 am -
1 stop4h 40m
Deal found 8/31![United Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:07 pm -
1 stop6h 49m
Thu 10/89:46 am -
1 stop6h 41m
Deal found 8/28![Delta logo]()
$367
Last-minute flights from Colorado to San FranciscoDiscover last-minute flight deals from Colorado to San Francisco. Data last updated September 1, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado to San Francisco. Data last updated September 1, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 8/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1510:50 pm -
1 stop10h 24m
Wed 9/3011:42 am -
Nonstop2h 48m
Deal found 8/27![Frontier logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/179:05 am -
1 stop5h 38m
Fri 9/256:04 am -
Nonstop2h 42m
Deal found 8/27![Frontier logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:39 pm -
Nonstop2h 56m
Thu 9/249:42 am -
Nonstop2h 47m
Deal found 8/27![Frontier logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 8/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/199:05 am -
2 stops10h 19m
Mon 9/2112:07 pm -
1 stop20h 25m
Deal found 8/28![Frontier logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:59 am -
Nonstop2h 48m
Fri 9/2511:58 pm -
1 stop7h 17m
Deal found 8/27![Frontier logo]()
$184
This Cheapflightsfares deal was found by Cheapflights users on 8/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:30 am -
1 stop6h 49m
Wed 9/309:00 am -
1 stop23h 32m
Deal found 8/27![Frontier logo]()
$176
This Frontier deal was found by Cheapflights users on 8/31. 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 9/2510:50 pm -
1 stop10h 24m
Sat 10/106:00 am -
Nonstop2h 46m
Deal found 8/31![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 8/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2810:50 pm -
2 stops36h 32m
Fri 10/24:21 pm -
1 stop16h 38m
Deal found 8/28![Frontier logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 8/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2810:29 pm -
1 stop14h 56m
Mon 10/54:21 pm -
1 stop16h 38m
Deal found 8/29![Frontier logo]()
$182
This Cheapflightsfares deal was found by Cheapflights users on 8/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3010:29 pm -
Nonstop2h 45m
Sun 10/49:42 am -
Nonstop2h 47m
Deal found 8/28![Frontier logo]()
$175
This Frontier deal was found by Cheapflights users on 8/31. 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 9/3010:29 pm -
Nonstop2h 45m
Mon 10/56:04 am -
Nonstop2h 42m
Deal found 8/31![Frontier logo]()
$177
This Frontier deal was found by Cheapflights users on 8/31. 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 9/308:59 am -
Nonstop2h 48m
Sat 10/1011:59 pm -
1 stop7h 20m
Deal found 8/31![Frontier logo]()
$178
One-way flights from Colorado to San FranciscoSearch for one-way flight options from Colorado to San Francisco. Find affordable one-way fares based on user searches. Data last updated September 1, 2026.
Search for one-way flight options from Colorado to San Francisco. Find affordable one-way fares based on user searches. Data last updated September 1, 2026.
This Super.com deal was found by Cheapflights users on 8/31. 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 10/1410:29 pm -
Nonstop2h 46m
Deal found 8/31![Frontier logo]()
$98
This Priceline deal was found by Cheapflights users on 8/31. 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 9/247:30 am -
1 stop6h 49m
Deal found 8/31![Frontier logo]()
$99
This CheapOair deal was found by Cheapflights users on 8/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:30 am -
1 stop25h 44m
Deal found 8/27![Frontier logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2310:29 pm -
2 stops15h 50m
Deal found 8/27![Frontier logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 8/31. 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 11/1410:29 pm -
1 stop15h 22m
Deal found 8/31![Frontier logo]()
$102
This Kiwi.com deal was found by Cheapflights users on 8/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/610:44 pm -
2 stops20h 40m
Deal found 8/28![Frontier logo]()
$103
This Super.com deal was found by Cheapflights users on 8/27. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/141:00 pm -
1 stop18h 46m
Deal found 8/27![Frontier logo]()
$104
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/231:10 pm -
1 stop8h 28m
Deal found 8/27![Frontier logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 8/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/510:48 pm -
1 stop18h 08m
Deal found 8/28![Frontier logo]()
$106
This Cheapflightsfares deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/29:05 am -
Nonstop2h 53m
Deal found 8/31![Frontier logo]()
$107
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/52:06 pm -
1 stop6h 33m
Deal found 8/27![Multiple Airlines logo]()
$151
This Southwest deal was found by Cheapflights users on 8/29. 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.
Thu 1/289:00 am -
1 stop5h 55m
Deal found 8/29![Southwest logo]()
$160
Find flight deals from Colorado to San Francisco
Keep the following information in mind while searching for Colorado to San Francisco flight deals. Data was last updated September 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $172 (Frontier) |
One-way from | $98 (Super.com) |
Popular in | July |
Cheapest in | January |
Average price | $277 |
Good round-trip deal | $280 or less |
Good one-way deal | $167 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Colorado to San Francisco 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 1, 2026.
Use the filters below to find and compare flights from Colorado to San Francisco that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Grand JunctionSan Francisco
GJT Grand Junction Regnl - SFO San Francisco
GJTSFO
Grand Junction Regnl
Wed 10/14
6:06 pm-10:51 pm
1 stop5h 45m
San Francisco
Sat 10/17
6:15 am-12:31 pm
1 stop5h 16m
$272
Grand JunctionSan Francisco
GJT Grand Junction Regnl - SFO San Francisco
GJTSFO
Grand Junction Regnl
Sat 9/26
7:00 am-11:23 am
1 stop5h 23m
San Francisco
Sat 10/17
6:15 am-12:31 pm
1 stop5h 16m
$280
Grand JunctionSan Francisco
GJT Grand Junction Regnl - SFO San Francisco
GJTSFO
Grand Junction Regnl
Tue 9/22
6:07 pm-10:55 pm
1 stop5h 48m
San Francisco
Sat 10/3
4:25 pm-10:06 pm
1 stop4h 41m
$280
Quickest round-trip
MontroseSan Francisco
MTJ Montrose County - SFO San Francisco
MTJSFO
Montrose County
Tue 12/22
6:15 pm-8:00 pm
Nonstop2h 45m
San Francisco
Tue 12/29
5:00 am-12:41 pm
1 stop6h 41m
$299
Grand JunctionSan Francisco
GJT Grand Junction Regnl - SFO San Francisco
GJTSFO
Grand Junction Regnl
Wed 9/16
7:41 am-1:25 pm
2 stops6h 44m
San Francisco
Sat 9/26
2:30 pm-9:57 pm
2 stops6h 27m
$305
DurangoSan Francisco
DRO Durango La Plata County - SFO San Francisco
DROSFO
Durango La Plata County
Mon 12/7
5:55 pm-10:43 pm
1 stop5h 48m
San Francisco
Sat 12/12
6:15 am-12:24 pm
1 stop5h 09m
$308
MontroseSan Francisco
MTJ Montrose County - SFO San Francisco
MTJSFO
Montrose County
Tue 12/22
8:15 am-4:10 pm
2 stops8h 55m
San Francisco
Tue 12/29
10:15 am-7:45 pm
2 stops8h 30m
$309
MontroseSan Francisco
MTJ Montrose County - SFO San Francisco
MTJSFO
Montrose County
Fri 9/25
9:10 am-5:35 pm
2 stops9h 25m
San Francisco
Sat 10/3
12:30 pm-6:20 pm
1 stop4h 50m
$314
MontroseSan Francisco
MTJ Montrose County - SFO San Francisco
MTJSFO
Montrose County
Mon 10/5
8:35 am-5:00 pm
2 stops9h 25m
San Francisco
Fri 10/9
11:45 am-7:30 pm
1 stop6h 45m
$324
MontroseSan Francisco
MTJ Montrose County - SFO San Francisco
MTJSFO
Montrose County
Thu 11/19
8:55 am-2:00 pm
1 stop6h 05m
San Francisco
Wed 11/25
7:35 am-7:45 pm
2 stops11h 10m
$324
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Colorado to San Francisco
Have a flexible travel schedule? Discover the best time to fly to San Francisco from Colorado with our price prediction graph.
GJT-SFO
MTJ-SFO
DRO-SFO
DEN-SFO
CEZ-SFO
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 Francisco
USCO-SFO
GJT-SFO
MTJ-SFO
DRO-SFO
DEN-SFO
What is the cheapest month to book a flight from Colorado to San Francisco?
Currently, January is the cheapest month in which you can book a flight from Colorado to San Francisco (average of $252). Flying from Colorado to San Francisco in July is currently the most expensive (average of $382). 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 SFO?
Find hourly flight availability from Colorado to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 1, 2026.
One of the essential ways to save on airfare from Colorado to San Francisco is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 37% on airfare.
Weekly flight availability from Colorado to San Francisco
Explore weekly flight availability from Colorado to San Francisco. 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 1, 2026.
The most flights from USCO to SFO are scheduled on a Sunday (57 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (32 on average).
How much does it cost to fly round-trip from Colorado to San Francisco?
Airfare is below average for this route at the moment.
Colorado to San Francisco flights typically cost between $188 and $375 in October.The cheapest round-trip price found within the last 5 days was $172 on Frontier (Oct 3-Oct 10).
How far ahead should I book a flight from Colorado to San Francisco?
The price you pay for your flight from Colorado to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 74 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest day to fly from Colorado to San Francisco?
Use this chart to determine the cheapest time to fly round-trip from Colorado to San Francisco. Price data was last updated on August 29, 2026.
Travelers seeking maximum savings on their Colorado to San Francisco flight should consider departing on Tuesday mornings when fares are most often at their lowest. Monday evenings 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 Francisco. 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 Francisco?
Book flights to San Francisco if you plan to visit one of these locationsSouth San Francisco
Santa Clara
Santa Cruz
Walnut Creek
Emeryville
San Bruno
Burlingame
Rancho Cordova
Roseville
Fairfield
Vallejo
Cupertino
Newark
Hayward
San Ramon
Redwood City
Manteca
San Carlos
Turlock
Davis
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Colorado to San Francisco
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Complete your trip
Complete your trip to San Francisco by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Colorado to San Francisco by cabin class
Find flights from Colorado to San Francisco, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Colorado and San Francisco flights
Browse other Colorado and San Francisco flight options. Last updated on September 1, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San Francisco
Explore flights to San Francisco departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 1, 2026.
Colorado to San Francisco flights
Consider these flights traveling from Colorado to San Francisco.
Top 6 airlines flying from Colorado to San Francisco
Discover the top 6 airlines that operate flights from Colorado to San Francisco. 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 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$77 | Average$230 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$185 | Average$430 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$201 | Average$399 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$211 | Average$372 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$228 | Average$335 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$237 | Average$296 | FlexibilityNo cancel fee | On-time75% |