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$35+ 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — LAX
oct. 17 — oct. 241
vie. 10/17
vie. 10/24
1 adult, Economy
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Cheap flight deals from Colorado to California

Keep the following information in mind while searching for Colorado to California flight deals. Data was last updated septiembre 17, 2025.

Round-trip from

$81
(Kiwi.com)

One-way from

$35
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$176

Good round-trip deal

$94 or less

Good one-way deal

$81 or less
From Colorado to California
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One-way flight from Colorado to California
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Highest demand for flights based on searches. 8% potential increase in price ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Colorado to California.
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Price to beat on a one-way flight from Colorado to California.
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Find flight deals from Colorado to California

Cheapest flights from Colorado to California
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 septiembre 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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.
lun. 10/1310:29 pmDEN - SAN
Nonstop2h 21mFrontier
jue. 10/1610:52 amSAN - DEN
Nonstop2h 39mFrontier
Deal found 9/16$81
This Kiwi.com deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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.
mié. 10/1510:29 pmDEN - ONT
Nonstop2h 21mFrontier
mié. 10/226:53 amONT - DEN
Nonstop2h 25mFrontier
Deal found 9/17$81
This Cheapflightsfares deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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.
vie. 10/176:36 pmDEN - SAN
Nonstop2h 32mFrontier
lun. 10/209:03 pmSAN - DEN
Nonstop2h 43mFrontier
Deal found 9/17$82
This CheapOair deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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.
mié. 10/2210:29 pmDEN - ONT
Nonstop2h 21mFrontier
mar. 10/286:53 amONT - DEN
Nonstop2h 25mFrontier
Deal found 9/16$82
This Frontier deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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.
sáb. 10/48:50 pmDEN - SAN
Nonstop2h 34mFrontier
lun. 10/610:20 amSAN - DEN
Nonstop2h 39mFrontier
Deal found 9/15$83
This Booking.com deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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.
sáb. 11/18:50 pmDEN - SAN
Nonstop2h 35mFrontier
sáb. 11/87:30 pmSAN - DEN
Nonstop2h 41mFrontier
Deal found 9/17$84
This CheapOair deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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.
mar. 10/710:29 pmDEN - ONT
Nonstop2h 21mFrontier
sáb. 10/117:04 amONT - DEN
Nonstop2h 27mFrontier
Deal found 9/16$84
This Cheapflightsfares deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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.
mar. 10/1410:29 pmDEN - SAN
Nonstop2h 21mFrontier
sáb. 10/187:00 amSAN - DEN
Nonstop2h 37mFrontier
Deal found 9/17$85
This CheapOair deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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.
vie. 9/266:30 amDEN - ONT
Nonstop2h 23mFrontier
jue. 10/96:53 amONT - DEN
Nonstop2h 25mFrontier
Deal found 9/15$85
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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.
vie. 10/248:30 amDEN - SAN
Nonstop2h 27mFrontier
jue. 10/306:00 pmSAN - DEN
Nonstop2h 34mFrontier
Deal found 9/15$86
This Frontier deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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.
jue. 12/49:30 amDEN - ONT
Nonstop2h 27mFrontier
vie. 12/511:52 amONT - DEN
Nonstop2h 22mFrontier
Deal found 9/16$86
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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.
lun. 10/2710:29 pmDEN - SAN
Nonstop2h 21mFrontier
sáb. 11/16:41 amSAN - DEN
Nonstop2h 37mFrontier
Deal found 9/16$87

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 septiembre 17, 2025.
Use the filters below to find and compare flights from Colorado to California that are best for you.

Fly from

Colorado

Fly to

California

Route

Depart

Return

Price

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

vie. 12/5

8:55 pm-10:25 pm

Nonstop2h 30m

San Diego

lun. 12/8

8:40 am-12:10 pm

Nonstop2h 30m

$91

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

jue. 10/30

7:19 pm-8:42 pm

Nonstop2h 23m

San Diego

sáb. 11/1

8:29 pm-11:51 pm

Nonstop2h 22m

$91

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

vie. 11/14

12:49 pm-2:15 pm

Nonstop2h 26m

San Diego

lun. 11/17

3:48 pm-7:06 pm

Nonstop2h 18m

$91

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

dom. 11/2

9:25 pm-10:55 pm

Nonstop2h 30m

San Diego

jue. 11/6

5:35 pm-10:35 pm

1 stop4h 00m

$96

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

vie. 11/7

7:25 pm-11:20 pm

1 stop4h 55m

San Diego

dom. 11/9

9:00 pm-12:25 am

Nonstop2h 25m

$101

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

jue. 11/6

5:25 am-9:20 am

1 stop4h 55m

San Diego

dom. 11/9

6:30 am-10:00 am

Nonstop2h 30m

$101

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

mié. 10/29

6:45 pm-10:00 pm

1 stop4h 15m

San Diego

mié. 11/5

8:40 am-1:35 pm

1 stop3h 55m

$106

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

mié. 12/24

6:40 am-8:15 am

Nonstop2h 35m

San Diego

mié. 12/31

3:15 pm-6:35 pm

Nonstop2h 20m

$117

DenverLos Angeles

DEN - LAX

DENLAX

Denver Intl

dom. 10/5

12:59 am-12:13 pm

1 stop12h 14m

Los Angeles

lun. 10/13

6:44 am-10:18 am

Nonstop2h 34m

$119

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

sáb. 11/8

2:45 pm-5:50 pm

1 stop4h 05m

San Diego

mar. 11/11

6:30 am-12:10 pm

1 stop4h 40m

$127

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 60 results
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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.
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

What is the cheapest month to book a flight from Colorado to California?

Currently, January is the cheapest month in which you can book a flight from Colorado to California (average of $246). Flying from Colorado to California in March is currently the most expensive (average of $325). 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 septiembre 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Colorado to California as you normally would.

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 septiembre 17, 2025.

The most flights from USCO to USCA are scheduled on a Monday (101 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (72 on average).

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 septiembre 17, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United 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.
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,961 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,926 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,173 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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.

  • How popular is this Colorado to California flight route?

    Within the past month, 365 users have taken a look at flights from Colorado to California.

  • How long is the flight from Colorado to California?

    Airlines like Southwest, Alaska Airlines, and Frontier fly from Colorado to California in about 2h 23m. The time it takes to get you to your destination can typically vary by up to 9h 51m. The distance from Colorado to California is about 852 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Colorado to California one-way?

    The cheapest airlines for a one-way flight from Colorado to California are Southwest ($55), Delta ($69), and United Airlines ($69).

  • Can I find deals for flights from Colorado to California that include hotel bookings?

    Yes. In addition to deals on Colorado to California flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Colorado to California?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Colorado to California.

  • Can I find deals for business class flights from Colorado to California?

    Yes. Cheapflights offers flight deals from Colorado to California by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Colorado to California?

    Currently, January is the cheapest month in which you can book a flight from Colorado to California (average of $246). Flying from Colorado to California in March is currently the most expensive (average of $325). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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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.
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Top 9 airlines flying from Colorado to California

Discover the top 9 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 septiembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$38Average$165FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$57Average$98FlexibilityNo cancel feeOn-time88%
Hawaiian AirlinesCheapest$78Average$173FlexibilityNo cancel feeOn-time85%
Breeze AirwaysCheapest$98Average$189FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$104Average$303FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$120Average$341FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$127Average$325FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$144Average$371FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$144Average$414FlexibilityNo cancel feeOn-time69%

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