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$37+ 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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — LAX
Feb 23 — Mar 21
Mon 2/23
Mon 3/2
1 adult, Economy
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Cheap 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 January 24, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” 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 3/210:29 pm
DEN
-
SAN
Nonstop2h 39m
Frontier
Sat 3/79:18 pm
SAN
-
DEN
Nonstop2h 29m
Frontier
Deal found 1/22$55
This Cheapflightsfares deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2710:29 pm
DEN
-
SAN
Nonstop2h 39m
Frontier
Mon 3/26:25 am
SAN
-
DEN
Nonstop2h 35m
Frontier
Deal found 1/22$56
This Frontier deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” 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 2/1410:29 pm
DEN
-
SAN
Nonstop2h 39m
Frontier
Sun 2/156:25 am
SAN
-
DEN
Nonstop2h 35m
Frontier
Deal found 1/22$57
This Kiwi.com deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/2110:29 pm
DEN
-
SAN
Nonstop2h 39m
Frontier
Tue 3/248:25 am
SAN
-
DEN
Nonstop2h 34m
Frontier
Deal found 1/22$60
This Frontier deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/2010:29 pm
DEN
-
SAN
Nonstop2h 39m
Frontier
Tue 3/248:25 am
SAN
-
DEN
Nonstop2h 34m
Frontier
Deal found 1/22$61
This Frontier deal was found by Cheapflights users on 1/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/65:40 pm
DEN
-
SAN
Nonstop2h 41m
Frontier
Sun 2/156:25 am
SAN
-
DEN
Nonstop2h 35m
Frontier
Deal found 1/23$66
This Expedia deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/186:45 pm
DEN
-
SAN
Nonstop2h 42m
Multiple Airlines
Mon 2/236:25 am
SAN
-
DEN
Nonstop2h 35m
Multiple Airlines
Deal found 1/22$67
This Kiwi.com deal was found by Cheapflights users on 1/23. Clicking the “Pick Dates” 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 3/2310:29 pm
DEN
-
SAN
Nonstop2h 39m
Frontier
Mon 3/309:18 pm
SAN
-
DEN
Nonstop2h 29m
Frontier
Deal found 1/23$69
This Cheapflightsfares deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” 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 3/2610:29 pm
DEN
-
SAN
Nonstop2h 39m
Frontier
Mon 3/309:18 pm
SAN
-
DEN
Nonstop2h 29m
Frontier
Deal found 1/22$70
This Cheapflightsfares deal was found by Cheapflights users on 1/23. Clicking the “Pick Dates” 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 3/2810:29 pm
DEN
-
SAN
Nonstop2h 39m
Frontier
Tue 3/316:25 am
SAN
-
DEN
Nonstop2h 35m
Frontier
Deal found 1/23$71
This Super.com deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” 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 2/2411:30 am
DEN
-
LAX
Nonstop2h 46m
Frontier
Thu 2/262:37 pm
LAX
-
DEN
Nonstop2h 29m
Frontier
Deal found 1/22$71
This Kiwi.com deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/2710:29 pm
DEN
-
SAN
Nonstop2h 39m
Multiple Airlines
Tue 3/311:48 pm
SAN
-
DEN
Nonstop2h 36m
Multiple Airlines
Deal found 1/22$72

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 January 24, 2026.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$55
(Kiwi.com)

One-way from

$37
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$193

Good round-trip deal

$94 or less

Good one-way deal

$47 or less
Provider with most accurate pricing for Denver Intl-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Los Angeles flights.
Search Deals
From Colorado to California
Search Deals
One-way flight from Colorado to California
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Colorado to California.
Search Deals
Price to beat on a one-way flight from Colorado to California.
Search Deals

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 January 24, 2026.
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

Thu 2/26

9:30 am-11:14 am

Nonstop2h 44m

San Diego

Mon 3/2

6:25 am-10:00 am

Nonstop2h 35m

$56

DenverLas Vegas

DEN - LAS

DENLAS

Denver Intl

Tue 2/10

10:35 am-11:46 am

Nonstop2h 11m

Las Vegas Harry Reid Intl

Sat 2/14

5:30 am-8:27 am

Nonstop1h 57m

$87

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Tue 3/3

3:09 pm-8:24 pm

1 stop6h 15m

San Diego

Thu 3/5

11:59 am-3:28 pm

Nonstop2h 29m

$92

DenverLos Angeles

DEN - LAX

DENLAX

Denver Intl

Wed 4/8

9:10 am-10:50 am

Nonstop2h 40m

Los Angeles

Sun 4/12

8:58 pm-12:31 am

Nonstop2h 33m

$92

DenverOntario

DEN - ONT

DENONT

Denver Intl

Tue 2/24

10:35 am-1:52 pm

1 stop4h 17m

Ontario

Sat 2/28

6:00 am-9:20 am

Nonstop2h 20m

$92

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Fri 3/20

10:29 pm-12:08 am

Nonstop2h 39m

San Diego

Mon 3/23

9:08 pm-12:37 am

Nonstop2h 29m

$94

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Wed 2/25

6:45 pm-8:27 pm

Nonstop2h 42m

San Diego

Sun 3/1

8:19 pm-11:59 pm

Nonstop2h 40m

$97

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Sat 4/18

3:00 pm-4:25 pm

Nonstop2h 25m

San Diego

Tue 4/21

8:35 am-3:05 pm

1 stop5h 30m

$107

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Thu 3/12

6:30 am-2:31 pm

1 stop9h 01m

San Diego

Tue 3/17

6:25 am-10:00 am

Nonstop2h 35m

$113

DenverLas Vegas

DEN - LAS

DENLAS

Denver Intl

Mon 2/9

10:29 pm-11:39 pm

Nonstop2h 10m

Las Vegas Harry Reid Intl

Thu 2/12

12:59 am-3:56 am

Nonstop1h 57m

$117

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/22

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, February is the cheapest month in which you can book a flight from Colorado to California (average of $38). Flying from Colorado to California in September is currently the most expensive (average of $75). 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 January 24, 2026.

Unlike at noon, when flights are generally more expensive, you can save up to 11% on flights from Colorado to California by exploring options for tickets in the morning.

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 January 17, 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. Saturday mornings 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 January 24, 2026.

The most flights from USCO to USCA are scheduled on a Friday (86 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (76 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 January 24, 2026.
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
4,268 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

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
4,268 reviews
Southwest
8.0
Very good
4,268 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

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
7.9
Good
8,110 reviews
Southwest
8.0
Very good
4,268 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

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
9,194 reviews
Southwest
8.0
Very good
4,268 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

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
11,192 reviews
Southwest
8.0
Very good
4,268 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

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
5.7
Fair
3,058 reviews
Southwest
8.0
Very good
4,268 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

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, 347 users have taken a look at flights from Colorado to California.

  • How long is the flight from Colorado to California?

    Airlines like Frontier, Alaska Airlines, and Southwest fly from Colorado to California in about 2h 25m. The time it takes to get you to your destination is usually consistent. The distance from Colorado to California is about 852 mi. Most flights are nonstop.

  • 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 Frontier ($19), Allegiant Air ($42), and Alaska Airlines ($58).

  • 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, February is the cheapest month in which you can book a flight from Colorado to California (average of $38). Flying from Colorado to California in September is currently the most expensive (average of $75). 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 January 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$48Average$163FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$50Average$114FlexibilityNo cancel feeOn-time88%
Hawaiian AirlinesCheapest$68Average$167FlexibilityNo cancel feeOn-time85%
DeltaCheapest$78Average$263FlexibilityNo cancel feeOn-timeN/A
Breeze AirwaysCheapest$81Average$221FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$98Average$269FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$117Average$335FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$117Average$384FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$149Average$358FlexibilityNo cancel feeOn-time71%

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