$41+ Cheap flights from Colorado to California
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 5/21. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — LAX
Jun 3 — Jun 101
Round-trip
1 adult, Economy
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Find cheap flights from Colorado to California with Cheapflights
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Cheapest flights from Colorado to CaliforniaExplore the most affordable flight options available from Colorado to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 4, 2026.
Explore the most affordable flight options available from Colorado to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 4, 2026.
This Super.com deal was found by Cheapflights users on 4/29. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/268:41 am
DEN
- ONT
Nonstop2h 24m
Frontier
Wed 5/276:00 am
ONT
- DEN
Nonstop2h 22m
Frontier
Deal found 4/29![Frontier logo]()
$71
This Frontier deal was found by Cheapflights users on 5/3. 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 5/268:41 am
DEN
- ONT
Nonstop2h 24m
Frontier
Sat 5/306:00 am
ONT
- DEN
Nonstop2h 22m
Frontier
Deal found 5/3![Frontier logo]()
$72
This Cheapflightsfares deal was found by Cheapflights users on 5/3. 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.
Tue 5/268:41 am
DEN
- ONT
Nonstop2h 24m
Frontier
Tue 6/26:00 am
ONT
- DEN
Nonstop2h 22m
Frontier
Deal found 5/3![Frontier logo]()
$74
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 5/267:12 am
DEN
- SAN
Nonstop2h 30m
Frontier
Tue 6/26:25 am
SAN
- DEN
Nonstop2h 36m
Frontier
Deal found 4/29![Frontier logo]()
$85
This Super.com deal was found by Cheapflights users on 5/4. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/310:29 pm
DEN
- SAN
Nonstop2h 21m
Frontier
Wed 6/106:25 am
SAN
- DEN
Nonstop2h 41m
Frontier
Deal found 5/4![Frontier logo]()
$91
This Super.com deal was found by Cheapflights users on 4/29. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1910:29 pm
DEN
- ONT
Nonstop2h 20m
Frontier
Mon 5/256:00 am
ONT
- DEN
Nonstop2h 22m
Frontier
Deal found 4/29![Frontier logo]()
$91
This Frontier deal was found by Cheapflights users on 4/29. 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 6/911:00 am
DEN
- SAN
Nonstop2h 33m
Frontier
Wed 6/106:25 am
SAN
- DEN
Nonstop2h 41m
Frontier
Deal found 4/29![Frontier logo]()
$92
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 5/2710:29 pm
DEN
- ONT
Nonstop2h 20m
Frontier
Sat 6/66:00 am
ONT
- DEN
Nonstop2h 22m
Frontier
Deal found 4/30![Frontier logo]()
$92
This Booking.com deal was found by Cheapflights users on 5/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/288:41 am
DEN
- ONT
Nonstop2h 24m
Frontier
Mon 6/16:00 am
ONT
- DEN
Nonstop2h 22m
Frontier
Deal found 5/1![Frontier logo]()
$93
This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/227:26 pm
DEN
- LAS
Nonstop2h 03m
Frontier
Wed 6/2412:59 am
LAS
- DEN
Nonstop1h 59m
Frontier
Deal found 4/29![Frontier logo]()
$94
This Super.com deal was found by Cheapflights users on 5/3. 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 5/256:10 am
DEN
- LAS
Nonstop2h 00m
Frontier
Thu 5/2812:29 am
LAS
- DEN
Nonstop1h 56m
Frontier
Deal found 5/3![Frontier logo]()
$95
This Super.com deal was found by Cheapflights users on 4/29. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:12 am
DEN
- SAN
Nonstop2h 30m
Frontier
Mon 6/16:25 am
SAN
- DEN
Nonstop2h 36m
Frontier
Deal found 4/29![Frontier logo]()
$95
Best flights from Colorado to CaliforniaDiscover carefully curated flight deals from Colorado to California that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 4, 2026.
Discover carefully curated flight deals from Colorado to California that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 4, 2026.
This Southwest deal was found by Cheapflights users on 4/29. 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 5/2111:50 am
DEN
- ONT
Nonstop2h 20m
Southwest
Tue 5/261:55 pm
ONT
- DEN
Nonstop2h 15m
Southwest
Deal found 4/29![Southwest logo]()
$157
This Delta deal was found by Cheapflights users on 5/2. 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 5/236:19 pm
DEN
- ONT
1 stop5h 26m
Delta
Wed 5/271:35 pm
ONT
- DEN
1 stop9h 17m
Delta
Deal found 5/2![Delta logo]()
$197
This United Airlines deal was found by Cheapflights users on 5/2. 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 6/178:05 am
DEN
- LAS
Nonstop2h 02m
United Airlines
Mon 6/225:45 am
LAS
- DEN
Nonstop2h 02m
United Airlines
Deal found 5/2![United Airlines logo]()
$239
This Alaska Airlines deal was found by Cheapflights users on 5/1. 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.
Tue 6/26:00 am
DEN
- BUR
1 stop7h 08m
Alaska Airlines
Wed 6/32:10 pm
BUR
- DEN
1 stop6h 27m
Alaska Airlines
Deal found 5/1![Alaska Airlines logo]()
$289
This Southwest deal was found by Cheapflights users on 5/3. 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 5/277:05 pm
DEN
- SAN
Nonstop2h 25m
Southwest
Sat 5/302:55 pm
SAN
- DEN
Nonstop2h 25m
Southwest
Deal found 5/3![Southwest logo]()
$192
This Delta deal was found by Cheapflights users on 5/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:05 am
DEN
- ONT
1 stop7h 30m
Delta
Mon 6/11:29 pm
ONT
- DEN
1 stop4h 46m
Delta
Deal found 5/1![Delta logo]()
$197
This Delta deal was found by Cheapflights users on 5/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1612:29 pm
DEN
- LAX
Nonstop2h 29m
Delta
Sun 6/218:32 pm
LAX
- DEN
Nonstop2h 27m
Delta
Deal found 5/1![Delta logo]()
$204
This Southwest deal was found by Cheapflights users on 5/3. 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 6/192:50 pm
DEN
- LAX
Nonstop2h 30m
Southwest
Tue 6/237:45 pm
LAX
- DEN
Nonstop2h 15m
Southwest
Deal found 5/3![Southwest logo]()
$204
This United Airlines deal was found by Cheapflights users on 5/3. 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 6/269:00 pm
DEN
- SAN
Nonstop2h 25m
United Airlines
Mon 6/298:45 am
SAN
- DEN
Nonstop2h 32m
United Airlines
Deal found 5/3![United Airlines logo]()
$257
This Southwest deal was found by Cheapflights users on 5/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/68:40 pm
DEN
- LAS
Nonstop1h 55m
Southwest
Tue 6/96:30 am
LAS
- DEN
Nonstop1h 50m
Southwest
Deal found 5/1![Southwest logo]()
$214
This Delta deal was found by Cheapflights users on 5/3. 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 5/307:25 am
DEN
- LAX
Nonstop2h 32m
Delta
Mon 6/18:19 pm
LAX
- DEN
Nonstop2h 25m
Delta
Deal found 5/3![Delta logo]()
$235
This Southwest deal was found by Cheapflights users on 5/3. 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 6/106:30 pm
DEN
- LAX
1 stop4h 45m
Southwest
Sat 6/133:45 pm
LAX
- DEN
2 stops6h 05m
Southwest
Deal found 5/3![Southwest logo]()
$214
This Alaska Airlines deal was found by Cheapflights users on 5/1. 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 5/166:40 am
DEN
- SAN
Nonstop2h 41m
Alaska Airlines
Sat 5/163:38 pm
SAN
- DEN
Nonstop2h 33m
Alaska Airlines
Deal found 5/1![Alaska Airlines logo]()
$297
This Southwest deal was found by Cheapflights users on 5/2. 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 6/36:45 am
DEN
- ONT
2 stops5h 50m
Southwest
Sat 6/64:55 pm
ONT
- DEN
1 stop5h 05m
Southwest
Deal found 5/2![Southwest logo]()
$222
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Tue 5/1911:15 am
DEN
- ONT
Nonstop2h 23m
United Airlines
Tue 5/265:00 am
ONT
- DEN
Nonstop2h 20m
United Airlines
Deal found 4/29![United Airlines logo]()
$307
This Delta deal was found by Cheapflights users on 5/3. 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 6/277:50 pm
DEN
- LAX
Nonstop2h 38m
Delta
Mon 6/292:30 pm
LAX
- DEN
Nonstop2h 28m
Delta
Deal found 5/3![Delta logo]()
$256
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/26:00 am
DEN
- SNA
1 stop9h 43m
Alaska Airlines
Wed 6/311:00 am
SNA
- DEN
1 stop6h 25m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$319
This Southwest deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/209:00 am
DEN
- LAX
Nonstop2h 30m
Southwest
Mon 5/257:55 pm
LAX
- DEN
Nonstop2h 15m
Southwest
Deal found 4/30![Southwest logo]()
$233
This Delta deal was found by Cheapflights users on 4/29. 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 9/2612:59 pm
DEN
- SAN
1 stop6h 55m
Delta
Tue 9/291:30 pm
SAN
- DEN
1 stop4h 40m
Delta
Deal found 4/29![Delta logo]()
$277
This United Airlines deal was found by Cheapflights users on 5/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/83:55 pm
DEN
- SAN
Nonstop2h 25m
United Airlines
Sun 7/126:30 am
SAN
- DEN
Nonstop2h 33m
United Airlines
Deal found 5/1![United Airlines logo]()
$337
This Southwest deal was found by Cheapflights users on 5/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/38:35 pm
DEN
- LAX
Nonstop2h 30m
Southwest
Sat 6/65:55 pm
LAX
- DEN
1 stop4h 30m
Southwest
Deal found 5/1![Southwest logo]()
$236
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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.
Thu 5/216:40 am
DEN
- SJC
1 stop17h 19m
Alaska Airlines
Tue 5/265:09 pm
SJC
- DEN
1 stop25h 02m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$358
This Delta deal was found by Cheapflights users on 4/29. 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.
Mon 8/37:09 pm
DEN
- SAN
1 stop5h 41m
Delta
Wed 8/510:54 am
SAN
- DEN
1 stop6h 24m
Delta
Deal found 4/29![Delta logo]()
$277
This United Airlines deal was found by Cheapflights users on 4/30. 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 5/307:20 pm
DEN
- ONT
Nonstop2h 22m
United Airlines
Sat 6/65:00 am
ONT
- DEN
Nonstop2h 20m
United Airlines
Deal found 4/30![United Airlines logo]()
$337
This Southwest deal was found by Cheapflights users on 5/2. 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 6/38:55 am
DEN
- ONT
Nonstop2h 20m
Southwest
Mon 6/85:50 am
ONT
- DEN
Nonstop2h 15m
Southwest
Deal found 5/2![Southwest logo]()
$237
This Delta deal was found by Cheapflights users on 5/2. 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 5/226:19 pm
DEN
- LAX
1 stop6h 34m
Delta
Mon 5/258:50 am
LAX
- DEN
Nonstop2h 29m
Delta
Deal found 5/2![Delta logo]()
$280
This United Airlines deal was found by Cheapflights users on 5/3. 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 5/307:20 pm
DEN
- ONT
Nonstop2h 22m
United Airlines
Mon 6/16:30 pm
ONT
- DEN
Nonstop2h 21m
United Airlines
Deal found 5/3![United Airlines logo]()
$340
This Alaska Airlines deal was found by Cheapflights users on 5/3. 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.
Tue 6/3011:32 am
DEN
- SJC
1 stop7h 28m
Alaska Airlines
Fri 7/38:12 pm
SJC
- DEN
1 stop13h 21m
Alaska Airlines
Deal found 5/3![Alaska Airlines logo]()
$388
This Southwest deal was found by Cheapflights users on 5/3. 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 6/67:55 am
DEN
- ONT
2 stops8h 20m
Southwest
Tue 6/96:35 pm
ONT
- DEN
1 stop4h 30m
Southwest
Deal found 5/3![Southwest logo]()
$262
This United Airlines deal was found by Cheapflights users on 5/4. 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 6/184:00 pm
DEN
- BUR
Nonstop2h 32m
United Airlines
Sun 6/216:31 pm
BUR
- DEN
Nonstop2h 28m
United Airlines
Deal found 5/4![United Airlines logo]()
$349
Last-minute flights from Colorado to CaliforniaDiscover last-minute flight deals from Colorado to California. Data last updated May 4, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado to California. Data last updated May 4, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2110:29 pm
DEN
- ONT
Nonstop2h 20m
Frontier
Thu 5/286:00 am
ONT
- DEN
Nonstop2h 22m
Frontier
Deal found 5/1![Frontier logo]()
$91
This Super.com deal was found by Cheapflights users on 5/3. 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 5/256:10 am
DEN
- LAS
Nonstop2h 00m
Frontier
Thu 5/2812:29 am
LAS
- DEN
Nonstop1h 56m
Frontier
Deal found 5/3![Frontier logo]()
$95
This Frontier deal was found by Cheapflights users on 5/3. 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 5/268:41 am
DEN
- ONT
Nonstop2h 24m
Frontier
Sat 5/306:00 am
ONT
- DEN
Nonstop2h 22m
Frontier
Deal found 5/3![Frontier logo]()
$72
This Cheapflightsfares deal was found by Cheapflights users on 5/3. 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.
Tue 5/268:41 am
DEN
- ONT
Nonstop2h 24m
Frontier
Tue 6/26:00 am
ONT
- DEN
Nonstop2h 22m
Frontier
Deal found 5/3![Frontier logo]()
$74
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 5/267:12 am
DEN
- SAN
Nonstop2h 30m
Frontier
Wed 6/36:25 am
SAN
- DEN
Nonstop2h 36m
Frontier
Deal found 4/29![Frontier logo]()
$85
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 5/2710:29 pm
DEN
- ONT
Nonstop2h 20m
Frontier
Sat 6/66:00 am
ONT
- DEN
Nonstop2h 22m
Frontier
Deal found 4/30![Frontier logo]()
$92
This Booking.com deal was found by Cheapflights users on 5/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/288:41 am
DEN
- ONT
Nonstop2h 24m
Frontier
Mon 6/16:00 am
ONT
- DEN
Nonstop2h 22m
Frontier
Deal found 5/1![Frontier logo]()
$93
This Super.com deal was found by Cheapflights users on 4/29. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:12 am
DEN
- SAN
Nonstop2h 30m
Frontier
Mon 6/16:25 am
SAN
- DEN
Nonstop2h 36m
Frontier
Deal found 4/29![Frontier logo]()
$95
This Super.com deal was found by Cheapflights users on 4/30. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:00 am
DEN
- LAX
Nonstop2h 35m
Frontier
Tue 6/26:30 am
LAX
- DEN
Nonstop2h 34m
Frontier
Deal found 4/30![Frontier logo]()
$95
This Super.com deal was found by Cheapflights users on 5/4. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/310:29 pm
DEN
- SAN
Nonstop2h 21m
Frontier
Wed 6/106:25 am
SAN
- DEN
Nonstop2h 41m
Frontier
Deal found 5/4![Frontier logo]()
$91
This Frontier deal was found by Cheapflights users on 4/29. 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 6/911:00 am
DEN
- SAN
Nonstop2h 33m
Frontier
Thu 6/116:25 am
SAN
- DEN
Nonstop2h 41m
Frontier
Deal found 4/29![Frontier logo]()
$92
This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/227:26 pm
DEN
- LAS
Nonstop2h 03m
Frontier
Wed 6/2412:59 am
LAS
- DEN
Nonstop1h 59m
Frontier
Deal found 4/29![Frontier logo]()
$94
One-way flights from Colorado to CaliforniaSearch for one-way flight options from Colorado to California. Find affordable one-way fares based on user searches. Data last updated May 4, 2026.
Search for one-way flight options from Colorado to California. Find affordable one-way fares based on user searches. Data last updated May 4, 2026.
This Mytrip deal was found by Cheapflights users on 5/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/216:10 am
DEN
- LAS
Nonstop2h 00m
Frontier
Deal found 5/2![Frontier logo]()
$41
This Frontier deal was found by Cheapflights users on 5/3. 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 9/88:44 am
DEN
- ONT
Nonstop2h 21m
Frontier
Deal found 5/3![Frontier logo]()
$41
This Frontier deal was found by Cheapflights users on 5/2. 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 6/308:44 am
DEN
- ONT
Nonstop2h 21m
Frontier
Deal found 5/2![Frontier logo]()
$43
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2810:29 pm
DEN
- LAS
Nonstop2h 00m
Frontier
Deal found 5/1![Frontier logo]()
$45
This Super.com deal was found by Cheapflights users on 4/30. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/3010:33 am
DEN
- LAS
Nonstop2h 02m
Frontier
Deal found 4/30![Frontier logo]()
$46
This Mytrip deal was found by Cheapflights users on 5/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/110:29 pm
DEN
- LAS
Nonstop2h 00m
Frontier
Deal found 5/4![Frontier logo]()
$47
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 6/2210:29 pm
DEN
- LAS
Nonstop2h 00m
Frontier
Deal found 4/30![Frontier logo]()
$49
This Frontier deal was found by Cheapflights users on 4/30. 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.
Sun 5/3110:29 pm
DEN
- LAS
Nonstop2h 00m
Frontier
Deal found 4/30![Frontier logo]()
$50
This Booking.com deal was found by Cheapflights users on 5/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/107:26 pm
DEN
- LAS
Nonstop2h 03m
Frontier
Deal found 5/1![Frontier logo]()
$51
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1710:29 pm
DEN
- SAN
Nonstop2h 24m
Frontier
Deal found 5/1![Frontier logo]()
$58
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 7/14:26 pm
DEN
- LAS
Nonstop2h 03m
Frontier
Deal found 4/30![Frontier logo]()
$60
This Frontier deal was found by Cheapflights users on 4/29. 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 7/2810:25 am
DEN
- LAS
Nonstop2h 00m
Frontier
Deal found 4/29![Frontier logo]()
$61
Find flight deals from Colorado to California
Keep the following information in mind while searching for Colorado to California flight deals. Data was last updated May 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $72 (Frontier) |
One-way from | $41 (Mytrip) |
Popular in | March |
Cheapest in | February |
Average price | $190 |
Good round-trip deal | $101 or less |
Good one-way deal | $48 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Colorado to California 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 May 4, 2026.
Use the filters below to find and compare flights from Colorado to California that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DenverOntario
DEN - ONT
DENONT
Denver Intl
Thu 5/21
11:50 am-1:10 pm
Nonstop2h 20m
Ontario
Tue 5/26
1:55 pm-5:10 pm
Nonstop2h 15m
$157
DenverSan Diego
DEN - SAN
DENSAN
Denver Intl
Wed 5/27
7:05 pm-8:30 pm
Nonstop2h 25m
San Diego
Sat 5/30
2:55 pm-6:20 pm
Nonstop2h 25m
$192
DenverOntario
DEN - ONT
DENONT
Denver Intl
Sat 5/23
6:19 pm-10:45 pm
1 stop5h 26m
Ontario
Wed 5/27
1:35 pm-11:52 pm
1 stop9h 17m
$197
DenverOntario
DEN - ONT
DENONT
Denver Intl
Wed 5/27
6:05 am-12:35 pm
1 stop7h 30m
Ontario
Mon 6/1
1:29 pm-7:15 pm
1 stop4h 46m
$197
DenverLos Angeles
DEN - LAX
DENLAX
Denver Intl
Tue 6/16
12:29 pm-1:58 pm
Nonstop2h 29m
Los Angeles
Sun 6/21
8:32 pm-11:59 pm
Nonstop2h 27m
$204
DenverLos Angeles
DEN - LAX
DENLAX
Denver Intl
Fri 6/19
2:50 pm-4:20 pm
Nonstop2h 30m
Los Angeles
Tue 6/23
7:45 pm-11:00 pm
Nonstop2h 15m
$204
Quickest round-trip
DenverLas Vegas
DEN - LAS
DENLAS
Denver Intl
Sat 6/6
8:40 pm-9:35 pm
Nonstop1h 55m
Las Vegas Harry Reid Intl
Tue 6/9
6:30 am-9:20 am
Nonstop1h 50m
$214
DenverLos Angeles
DEN - LAX
DENLAX
Denver Intl
Wed 6/10
6:30 pm-10:15 pm
1 stop4h 45m
Los Angeles
Sat 6/13
3:45 pm-10:50 pm
2 stops6h 05m
$214
DenverOntario
DEN - ONT
DENONT
Denver Intl
Wed 6/3
6:45 am-11:35 am
2 stops5h 50m
Ontario
Sat 6/6
4:55 pm-11:00 pm
1 stop5h 05m
$222
DenverLos Angeles
DEN - LAX
DENLAX
Denver Intl
Wed 5/20
9:00 am-10:30 am
Nonstop2h 30m
Los Angeles
Mon 5/25
7:55 pm-11:10 pm
Nonstop2h 15m
$233
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Colorado to California
Have a flexible travel schedule? Discover the best time to fly to California from Colorado with our price prediction graph.
DEN-SAN
DEN-SMF
DEN-ONT
DEN-RNO
DEN-LAS
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 California
USCO-USCA
DEN-SAN
DEN-SMF
DEN-ONT
DEN-RNO
How far ahead should I book a flight from Colorado to California?
The best time to book flights from Colorado to California is 68 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 month to book a flight from Colorado to California?
Currently, September is the cheapest month in which you can book a flight from Colorado to California (average of $213). Flying from Colorado to California in March is currently the most expensive (average of $299). 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 CA?
Find hourly flight availability from Colorado to California. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 4, 2026.
Unlike in the afternoon, when flights are generally more expensive, you can save up to 17% on flights from Colorado to California by exploring options for tickets in the evening.
What is the cheapest day to fly from Colorado to California?
Use this chart to determine the cheapest time to fly round-trip from Colorado to California. Price data was last updated on May 2, 2026.
Travelers seeking maximum savings on their Colorado to California flight should consider departing on Tuesday mornings when fares are most often at their lowest. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Colorado to California
Explore weekly flight availability from Colorado to California. 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 May 4, 2026.
The most flights from USCO to USCA are scheduled on a Friday (104 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (49 on average).
How much does it cost to fly round-trip from Colorado to California?
Reviews of airlines servicing California
Get insights into the airlines that provide service to California. 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 California. Reviews last updated May 4, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines,Southwest, andUnited Airlines from Colorado to California to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.5
Food
7.1
Comfort
7.8
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Crew
8.5
Food
7.1
Comfort
7.8
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Crew
8.5
Food
7.1
Comfort
7.8
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Crew
8.5
Food
7.1
Comfort
7.8
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Crew
8.5
Food
7.1
Comfort
7.8
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Crew
8.5
Food
7.1
Comfort
7.8
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Related info for your journey
Find useful and relevant information for your journey from Colorado to California. 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.
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Alternative routes for Colorado to California
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to California by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Colorado to California by cabin class
Find flights from Colorado to California, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Colorado and California flights
Browse other Colorado and California flight options. Last updated on May 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from California
Find the right flight back to Colorado after your stay in California
Colorado to California flights
Consider these flights traveling from Colorado to California.
Top 10 airlines flying from Colorado to California
Discover the top 10 airlines that operate flights from Colorado to California. 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 May 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$50 | Average$188 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$68 | Average$177 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$89 | Average$114 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$100 | Average$272 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$100 | Average$289 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$116 | Average$373 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$117 | Average$348 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$126 | Average$178 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$157 | Average$373 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$182 | Average$236 | FlexibilityNo cancel fee | On-time62% |