$54+ Cheap flights from California to Colorado
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — DEN
Aug 29 — Sep 51
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from California to Colorado 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 California to Colorado
Cheapest
Best
Last-minute
One-way
Cheapest flights from California to ColoradoExplore the most affordable flight options available from California to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2026.
Explore the most affordable flight options available from California to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 7/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:15 am
ONT
- DEN
Nonstop2h 20m
Frontier
Mon 9/2110:29 pm
DEN
- ONT
Nonstop2h 18m
Frontier
Deal found 7/26![Frontier logo]()
$103
This Super.com deal was found by Cheapflights users on 7/27. 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.
Wed 11/182:35 pm
ONT
- DEN
Nonstop2h 22m
Frontier
Thu 11/1910:34 pm
DEN
- ONT
Nonstop2h 21m
Frontier
Deal found 7/27![Frontier logo]()
$105
This Frontier deal was found by Cheapflights users on 7/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2011:38 am
ONT
- DEN
Nonstop2h 26m
Frontier
Thu 10/2910:34 pm
DEN
- ONT
Nonstop2h 21m
Frontier
Deal found 7/29![Frontier logo]()
$106
This Frontier deal was found by Cheapflights users on 7/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/910:04 am
ONT
- DEN
1 stop7h 29m
Frontier
Wed 9/910:29 pm
DEN
- ONT
Nonstop2h 18m
Frontier
Deal found 7/29![Frontier logo]()
$107
This Cheapflightsfares deal was found by Cheapflights users on 7/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/229:09 pm
LAX
- DEN
Nonstop2h 35m
Frontier
Sat 8/299:55 am
DEN
- LAX
1 stop15h 09m
Frontier
Deal found 7/30![Frontier logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 8/266:30 am
LAX
- DEN
Nonstop2h 33m
Frontier
Thu 8/2710:00 am
DEN
- LAX
1 stop6h 06m
Frontier
Deal found 7/27![Frontier logo]()
$110
This Cheapflightsfares deal was found by Cheapflights users on 7/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:56 pm
ONT
- DEN
Nonstop2h 25m
Frontier
Sat 8/299:06 pm
DEN
- ONT
1 stop11h 26m
Frontier
Deal found 7/30![Frontier logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
Wed 9/235:36 pm
LAS
- DEN
1 stop5h 12m
Frontier
Thu 9/247:30 am
DEN
- LAS
Nonstop1h 58m
Frontier
Deal found 7/30![Frontier logo]()
$111
This Frontier deal was found by Cheapflights users on 7/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/54:15 pm
LAX
- DEN
1 stop4h 38m
Frontier
Tue 9/1510:44 pm
DEN
- LAX
Nonstop2h 26m
Frontier
Deal found 7/29![Frontier logo]()
$111
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 9/93:10 pm
LAS
- DEN
Nonstop2h 23m
Frontier
Wed 9/1612:42 pm
DEN
- LAS
1 stop7h 00m
Frontier
Deal found 7/27![Frontier logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1810:15 am
LAX
- DEN
1 stop16h 33m
Frontier
Tue 8/2510:39 pm
DEN
- LAX
Nonstop2h 32m
Frontier
Deal found 7/26![Frontier logo]()
$112
This Expedia deal was found by Cheapflights users on 7/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:56 pm
ONT
- DEN
Nonstop2h 25m
Frontier
Mon 9/76:55 pm
DEN
- ONT
1 stop21h 54m
Frontier
Deal found 7/29![Frontier logo]()
$112
Best flights from California to ColoradoDiscover carefully curated flight deals from California to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 30, 2026.
Discover carefully curated flight deals from California to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 30, 2026.
This Southwest deal was found by Cheapflights users on 7/27. 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 9/291:50 pm
ONT
- DEN
Nonstop2h 15m
Southwest
Sat 10/35:45 am
DEN
- ONT
2 stops6h 25m
Southwest
Deal found 7/27![Southwest logo]()
$172
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2510:54 am
SAN
- DEN
1 stop6h 17m
Delta
Sun 9/275:30 am
DEN
- SAN
1 stop4h 11m
Delta
Deal found 7/29![Delta logo]()
$197
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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.
Sat 9/510:23 am
LAS
- DEN
1 stop8h 03m
Alaska Airlines
Mon 9/76:17 am
DEN
- LAS
1 stop6h 47m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$207
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Mon 8/245:00 am
ONT
- DEN
Nonstop2h 21m
United Airlines
Mon 8/317:30 pm
DEN
- ONT
Nonstop2h 23m
United Airlines
Deal found 7/29![United Airlines logo]()
$237
This Southwest deal was found by Cheapflights users on 7/29. 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.
Wed 8/262:10 pm
ONT
- DEN
2 stops6h 10m
Southwest
Wed 9/21:05 pm
DEN
- ONT
Nonstop2h 20m
Southwest
Deal found 7/29![Southwest logo]()
$172
This Southwest deal was found by Cheapflights users on 7/28. 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 10/298:05 am
LAX
- DEN
1 stop3h 55m
Southwest
Sat 10/318:05 am
DEN
- LAX
1 stop4h 40m
Southwest
Deal found 7/28![Southwest logo]()
$172
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/15:01 pm
SAN
- DEN
1 stop4h 39m
Delta
Sun 10/45:30 am
DEN
- SAN
1 stop4h 11m
Delta
Deal found 7/29![Delta logo]()
$197
This KAYAK deal was found by Cheapflights users on 7/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/235:33 am
SFO
- DEN
1 stop5h 01m
American Airlines
Tue 8/2511:40 am
DEN
- SFO
1 stop5h 18m
American Airlines
Deal found 7/29![American Airlines logo]()
$399
This Southwest deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/72:30 pm
LAX
- DEN
1 stop5h 10m
Southwest
Mon 11/92:00 pm
DEN
- LAX
1 stop4h 00m
Southwest
Deal found 7/25![Southwest logo]()
$172
This Delta deal was found by Cheapflights users on 7/28. 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.
Sat 9/121:04 pm
ONT
- DEN
1 stop5h 36m
Delta
Sat 9/197:10 am
DEN
- ONT
1 stop6h 04m
Delta
Deal found 7/28![Delta logo]()
$197
This Southwest deal was found by Cheapflights users on 7/28. 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 9/246:30 pm
LAS
- DEN
1 stop3h 40m
Southwest
Tue 9/299:00 am
DEN
- LAS
1 stop4h 00m
Southwest
Deal found 7/28![Southwest logo]()
$173
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Wed 12/237:03 pm
LAX
- DEN
Nonstop2h 28m
United Airlines
Wed 12/309:15 pm
DEN
- LAX
Nonstop2h 41m
United Airlines
Deal found 7/28![United Airlines logo]()
$237
This Delta deal was found by Cheapflights users on 7/27. 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 9/26:00 am
ONT
- DEN
1 stop5h 04m
Delta
Tue 9/86:06 pm
DEN
- ONT
1 stop4h 58m
Delta
Deal found 7/27![Delta logo]()
$197
This Southwest deal was found by Cheapflights users on 7/29. 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 9/108:15 am
LAX
- DEN
2 stops7h 40m
Southwest
Fri 9/117:30 pm
DEN
- LAX
Nonstop2h 35m
Southwest
Deal found 7/29![Southwest logo]()
$173
This Delta deal was found by Cheapflights users on 7/27. 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 8/296:00 am
ONT
- DEN
1 stop4h 47m
Delta
Sat 8/296:28 pm
DEN
- ONT
1 stop4h 55m
Delta
Deal found 7/27![Delta logo]()
$197
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:00 am
SMF
- DEN
1 stop10h 01m
Alaska Airlines
Tue 10/69:45 am
DEN
- SMF
1 stop10h 37m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$263
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Wed 9/235:00 am
SFO
- DEN
Nonstop2h 40m
United Airlines
Sat 9/267:40 am
DEN
- SFO
Nonstop2h 41m
United Airlines
Deal found 7/29![United Airlines logo]()
$257
This Southwest deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1210:35 am
ONT
- DEN
1 stop4h 25m
Southwest
Wed 9/169:00 am
DEN
- ONT
1 stop6h 05m
Southwest
Deal found 7/25![Southwest logo]()
$177
This Delta deal was found by Cheapflights users on 7/27. 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 8/226:00 am
ONT
- DEN
1 stop4h 47m
Delta
Mon 8/245:35 am
DEN
- ONT
1 stop4h 17m
Delta
Deal found 7/27![Delta logo]()
$198
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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.
Fri 9/255:28 pm
LAS
- DEN
1 stop5h 16m
Alaska Airlines
Sun 9/276:17 am
DEN
- LAS
1 stop6h 47m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$266
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Wed 8/194:14 pm
SNA
- DEN
Nonstop2h 23m
United Airlines
Wed 8/264:00 pm
DEN
- SNA
Nonstop2h 29m
United Airlines
Deal found 7/28![United Airlines logo]()
$259
This Southwest deal was found by Cheapflights users on 7/29. 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 10/205:50 am
LAX
- DEN
1 stop4h 45m
Southwest
Sat 10/242:25 pm
DEN
- LAX
1 stop4h 10m
Southwest
Deal found 7/29![Southwest logo]()
$177
This Alaska Airlines deal was found by Cheapflights users on 7/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:52 am
SMF
- DEN
1 stop16h 04m
Alaska Airlines
Tue 9/88:06 pm
DEN
- SMF
1 stop17h 09m
Alaska Airlines
Deal found 7/27![Alaska Airlines logo]()
$273
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:00 am
SNA
- DEN
1 stop4h 04m
Delta
Wed 9/97:05 am
DEN
- SNA
1 stop5h 55m
Delta
Deal found 7/29![Delta logo]()
$212
This Southwest deal was found by Cheapflights users on 7/27. 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 8/2210:10 am
LAX
- DEN
1 stop5h 00m
Southwest
Mon 8/248:05 am
DEN
- LAX
2 stops7h 25m
Southwest
Deal found 7/27![Southwest logo]()
$178
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/125:00 pm
SMF
- DEN
1 stop18h 20m
Alaska Airlines
Tue 9/151:43 pm
DEN
- SMF
1 stop5h 35m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$273
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/265:04 pm
SNA
- DEN
1 stop4h 51m
Delta
Sat 8/296:28 pm
DEN
- SNA
1 stop4h 27m
Delta
Deal found 7/29![Delta logo]()
$212
This United Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/228:55 am
SNA
- DEN
Nonstop2h 23m
United Airlines
Mon 8/244:00 pm
DEN
- SNA
Nonstop2h 29m
United Airlines
Deal found 7/25![United Airlines logo]()
$285
This Southwest deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2011:20 am
LAX
- DEN
1 stop3h 55m
Southwest
Tue 8/2512:05 pm
DEN
- LAX
2 stops6h 25m
Southwest
Deal found 7/25![Southwest logo]()
$178
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2312:52 pm
SMF
- DEN
1 stop5h 34m
Alaska Airlines
Sun 9/276:17 am
DEN
- SMF
1 stop18h 23m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$283
Last-minute flights from California to ColoradoDiscover last-minute flight deals from California to Colorado. Data last updated July 30, 2026 and is based on user searches.
Discover last-minute flight deals from California to Colorado. Data last updated July 30, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/132:53 pm
LAS
- DEN
Nonstop2h 07m
Frontier
Mon 8/1710:39 pm
DEN
- LAS
1 stop10h 37m
Frontier
Deal found 7/25![Frontier logo]()
$113
This Frontier deal was found by Cheapflights users on 7/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:00 am
ONT
- DEN
Nonstop2h 24m
Frontier
Sat 8/2210:29 pm
DEN
- ONT
Nonstop2h 21m
Frontier
Deal found 7/26![Frontier logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/178:15 am
LAS
- DEN
Nonstop2h 04m
Frontier
Thu 8/208:31 pm
DEN
- LAS
1 stop4h 12m
Frontier
Deal found 7/26![Frontier logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:30 am
LAX
- DEN
Nonstop2h 33m
Frontier
Wed 8/1910:49 pm
DEN
- LAX
1 stop17h 17m
Frontier
Deal found 7/26![Frontier logo]()
$111
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1810:15 am
LAX
- DEN
1 stop16h 33m
Frontier
Tue 8/2510:39 pm
DEN
- LAX
Nonstop2h 32m
Frontier
Deal found 7/26![Frontier logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Tue 8/1810:15 am
LAX
- DEN
1 stop6h 45m
Frontier
Thu 8/2010:39 pm
DEN
- LAX
Nonstop2h 32m
Frontier
Deal found 7/27![Frontier logo]()
$113
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
Tue 8/186:55 am
LAX
- DEN
1 stop10h 05m
Frontier
Sat 8/2210:39 pm
DEN
- LAX
Nonstop2h 32m
Frontier
Deal found 7/29![Frontier logo]()
$116
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
Wed 8/196:55 am
LAX
- DEN
1 stop10h 05m
Frontier
Mon 8/2410:39 pm
DEN
- LAX
Nonstop2h 32m
Frontier
Deal found 7/29![Frontier logo]()
$114
This Cheapflightsfares deal was found by Cheapflights users on 7/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/229:09 pm
LAX
- DEN
Nonstop2h 35m
Frontier
Sat 8/299:55 am
DEN
- LAX
1 stop15h 09m
Frontier
Deal found 7/30![Frontier logo]()
$109
This Frontier deal was found by Cheapflights users on 7/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/223:40 pm
ONT
- DEN
1 stop5h 01m
Frontier
Mon 8/248:45 am
DEN
- ONT
Nonstop2h 19m
Frontier
Deal found 7/29![Frontier logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 8/266:30 am
LAX
- DEN
Nonstop2h 33m
Frontier
Thu 8/2710:00 am
DEN
- LAX
1 stop6h 06m
Frontier
Deal found 7/27![Frontier logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Wed 8/2611:37 am
LAS
- DEN
1 stop7h 09m
Frontier
Sat 8/294:25 pm
DEN
- LAS
Nonstop2h 04m
Frontier
Deal found 7/28![Frontier logo]()
$116
One-way flights from California to ColoradoSearch for one-way flight options from California to Colorado. Find affordable one-way fares based on user searches. Data last updated July 30, 2026.
Search for one-way flight options from California to Colorado. Find affordable one-way fares based on user searches. Data last updated July 30, 2026.
This Super.com deal was found by Cheapflights users on 7/26. 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.
Fri 10/306:15 am
ONT
- DEN
Nonstop2h 26m
Frontier
Deal found 7/26![Frontier logo]()
$54
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
Thu 10/292:22 pm
SJC
- DEN
1 stop9h 03m
Frontier
Deal found 7/29![Frontier logo]()
$57
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 9/219:03 pm
SJC
- DEN
1 stop11h 29m
Frontier
Deal found 7/27![Frontier logo]()
$59
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 9/281:24 pm
BUR
- DEN
1 stop22h 22m
Frontier
Deal found 7/30![Frontier logo]()
$59
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/289:03 pm
SJC
- DEN
1 stop19h 29m
Frontier
Deal found 7/29![Frontier logo]()
$60
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:14 pm
SJC
- DEN
1 stop15h 59m
Frontier
Deal found 7/26![Frontier logo]()
$61
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 10/269:03 pm
SJC
- DEN
1 stop11h 52m
Frontier
Deal found 7/27![Frontier logo]()
$63
This Trip.com deal was found by Cheapflights users on 7/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:00 am
BUR
- DEN
1 stop11h 41m
Frontier
Deal found 7/28![Frontier logo]()
$66
This deal was found by Cheapflights users on 7/26. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:35 am
SMF
- DEN
Nonstop2h 28m
Frontier
Deal found 7/26![Frontier logo]()
$67
This Trip.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/241:24 pm
BUR
- DEN
1 stop9h 20m
Frontier
Deal found 7/25![Frontier logo]()
$67
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 9/109:03 pm
SJC
- DEN
1 stop19h 56m
Frontier
Deal found 7/27![Frontier logo]()
$68
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 8/245:35 pm
BUR
- DEN
1 stop5h 35m
Frontier
Deal found 7/27![Frontier logo]()
$68
Find flight deals from California to Colorado
Keep the following information in mind while searching for California to Colorado flight deals. Data was last updated July 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $103 (Cheapflightsfares) |
One-way from | $54 (Super.com) |
Popular in | July |
Cheapest in | September |
Average price | $296 |
Good round-trip deal | $127 or less |
Good one-way deal | $79 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from California to Colorado that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 30, 2026.
Use the filters below to find and compare flights from California to Colorado that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioDenver
ONT - DEN
ONTDEN
Ontario
Tue 9/29
1:50 pm-5:05 pm
Nonstop2h 15m
Denver Intl
Sat 10/3
5:45 am-11:10 am
2 stops6h 25m
$172
OntarioDenver
ONT - DEN
ONTDEN
Ontario
Wed 8/26
2:10 pm-9:20 pm
2 stops6h 10m
Denver Intl
Wed 9/2
1:05 pm-2:25 pm
Nonstop2h 20m
$172
Los AngelesDenver
LAX - DEN
LAXDEN
Los Angeles
Thu 10/29
8:05 am-1:00 pm
1 stop3h 55m
Denver Intl
Sat 10/31
8:05 am-11:45 am
1 stop4h 40m
$172
Los AngelesDenver
LAX - DEN
LAXDEN
Los Angeles
Sat 11/7
2:30 pm-8:40 pm
1 stop5h 10m
Denver Intl
Mon 11/9
2:00 pm-5:00 pm
1 stop4h 00m
$172
Las VegasDenver
LAS - DEN
LASDEN
Las Vegas Harry Reid Intl
Thu 9/24
6:30 pm-11:10 pm
1 stop3h 40m
Denver Intl
Tue 9/29
9:00 am-12:00 pm
1 stop4h 00m
$173
Los AngelesDenver
LAX - DEN
LAXDEN
Los Angeles
Thu 9/10
8:15 am-4:55 pm
2 stops7h 40m
Denver Intl
Fri 9/11
7:30 pm-9:05 pm
Nonstop2h 35m
$173
OntarioDenver
ONT - DEN
ONTDEN
Ontario
Sat 9/12
10:35 am-4:00 pm
1 stop4h 25m
Denver Intl
Wed 9/16
9:00 am-2:05 pm
1 stop6h 05m
$177
Los AngelesDenver
LAX - DEN
LAXDEN
Los Angeles
Tue 10/20
5:50 am-11:35 am
1 stop4h 45m
Denver Intl
Sat 10/24
2:25 pm-5:35 pm
1 stop4h 10m
$177
Los AngelesDenver
LAX - DEN
LAXDEN
Los Angeles
Sat 8/22
10:10 am-4:10 pm
1 stop5h 00m
Denver Intl
Mon 8/24
8:05 am-2:30 pm
2 stops7h 25m
$178
Los AngelesDenver
LAX - DEN
LAXDEN
Los Angeles
Thu 8/20
11:20 am-4:15 pm
1 stop3h 55m
Denver Intl
Tue 8/25
12:05 pm-5:30 pm
2 stops6h 25m
$178
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from California to Colorado
Have a flexible travel schedule? Discover the best time to fly to Colorado from California with our price prediction graph.
LAS-DEN
LAX-DEN
SAN-DEN
SFO-DEN
ONT-DEN
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 California to Colorado
USCA-USCO
LAS-DEN
LAX-DEN
SAN-DEN
SFO-DEN
What is the cheapest month to book a flight from California to Colorado?
Currently, October is the cheapest month in which you can book a flight from California to Colorado (average of $236). Flying from California to Colorado in June is currently the most expensive (average of $367). 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 CA to CO?
Find hourly flight availability from California to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2026.
It’s typically best to fly out from California to Colorado in the afternoon. Doing so could potentially save you 7% on the flight price compared to flying in the morning, which is usually more expensive.
Weekly flight availability from California to Colorado
Explore weekly flight availability from California to Colorado. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 30, 2026.
The most flights from USCA to USCO are scheduled on a Wednesday (95 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (44 on average).
How much does it cost to fly round-trip from California to Colorado?
Airfare is below average for this route at the moment.
California to Colorado flights typically cost between $150 and $302 in August.The cheapest round-trip price found within the last 5 days was $109 on Frontier (Aug 22-Aug 25).
How far ahead should I book a flight from California to Colorado?
The best time to book flights from California to Colorado is 52 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 California to Colorado?
Use this chart to determine the cheapest time to fly round-trip from California to Colorado. Price data was last updated on August 31, 2025.
Travelers seeking maximum savings on their California to Colorado flight should consider departing on Thursday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Colorado
Get insights into the airlines that provide service to Colorado. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Colorado. Reviews last updated July 30, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited Airlines from California to Colorado to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from California to Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Return Flight Options
Top destinations
Alternative routes for California to Colorado
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Colorado by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from California to Colorado by cabin class
Find flights from California to Colorado, based on your preferred cabin class, be it economy, premium economy, business, or first class.
California and Colorado flights
Browse other California and Colorado flight options. Last updated on July 30, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Colorado
Find the right flight back to California after your stay in Colorado
California to Colorado flights
Consider these flights traveling from California to Colorado.
Top 10 airlines flying from California to Colorado
Discover the top 10 airlines that operate flights from California to Colorado. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$47 | Average$193 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$58 | Average$137 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$90 | Average$124 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$97 | Average$386 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$115 | Average$408 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$117 | Average$402 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$117 | Average$413 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$128 | Average$218 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$141 | Average$335 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$166 | Average$401 | FlexibilityNo cancel fee | On-time71% |