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$39+ Cheap flights from California to Denver (DEN)

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 12/31. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — DEN
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from California to Denver

Cheapest flights from California to Denver
Explore the most affordable flight options available from California to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Frontier deal was found by Cheapflights users on 12/16. 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.
Wed 12/2412:30 pmLAX - DEN
Nonstop2h 32mFrontier
Thu 1/16:00 amDEN - LAX
Nonstop2h 42mFrontier
Deal found 12/16$110
This CheapOair deal was found by Cheapflights users on 12/16. 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.
Tue 12/306:00 amONT - DEN
1 stop20h 58mFrontier
Tue 1/68:45 pmDEN - ONT
Nonstop2h 27mFrontier
Deal found 12/16$111
This Frontier deal was found by Cheapflights users on 12/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:29 pmSFO - DEN
1 stop8h 10mFrontier
Wed 1/74:04 pmDEN - SFO
Nonstop2h 55mFrontier
Deal found 12/17$112
This Flightnetwork deal was found by Cheapflights users on 12/16. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:00 amONT - DEN
1 stop20h 58mFrontier
Wed 1/79:45 pmDEN - ONT
Nonstop2h 29mFrontier
Deal found 12/16$116
This Mytrip deal was found by Cheapflights users on 12/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:00 amONT - DEN
1 stop20h 58mFrontier
Wed 1/79:45 pmDEN - ONT
Nonstop2h 29mFrontier
Deal found 12/16$117
This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
Wed 12/312:22 pmLAX - DEN
1 stop17h 33mFrontier
Wed 1/711:04 amDEN - LAX
Nonstop2h 38mFrontier
Deal found 12/16$118
This Orbitz deal was found by Cheapflights users on 12/16. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:00 amONT - DEN
1 stop20h 58mFrontier
Mon 1/1210:29 pmDEN - ONT
Nonstop2h 27mFrontier
Deal found 12/16$121
This CheapOair deal was found by Cheapflights users on 12/15. 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.
Wed 12/2412:30 pmLAX - DEN
Nonstop2h 32mFrontier
Mon 12/297:00 amDEN - LAX
1 stop14h 31mFrontier
Deal found 12/15$122
This Super.com deal was found by Cheapflights users on 12/16. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:24 amLAS - DEN
1 stop4h 47mFrontier
Wed 1/77:42 pmDEN - LAS
Nonstop2h 03mFrontier
Deal found 12/16$123
This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
Tue 12/306:00 amONT - DEN
1 stop20h 58mFrontier
Tue 1/139:20 pmDEN - ONT
Nonstop2h 39mFrontier
Deal found 12/16$123
This Frontier deal was found by Cheapflights users on 12/16. 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.
Wed 12/315:09 pmLAX - DEN
1 stop4h 30mFrontier
Tue 1/1311:41 amDEN - LAX
Nonstop2h 46mFrontier
Deal found 12/16$123
This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
Wed 12/316:00 amONT - DEN
1 stop20h 58mFrontier
Tue 1/139:20 pmDEN - ONT
Nonstop2h 39mFrontier
Deal found 12/16$124

Find flight deals from California to Denver

Keep the following information in mind while searching for California to Denver flight deals. Data was last updated December 18, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$58
(Frontier)

One-way from

$39
(Frontier)

Popular in

June

Cheapest in

January

Average price

$210

Good round-trip deal

$127 or less

Good one-way deal

$106 or less
Provider with most accurate pricing for Los Angeles-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Denver Intl flights.
Search Deals
From California to Denver Intl
Search Deals
One-way flight from California to Denver Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from California to Denver Intl.
Search Deals
Price to beat on a one-way flight from California to Denver Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from California to Denver 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 December 18, 2025.
Use the filters below to find and compare flights from California to Denver that are best for you.

Fly from

California

Fly to

Denver

Route

Depart

Return

Price

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Thu 1/22

6:30 am-10:05 am

Nonstop2h 35m

Denver Intl

Mon 1/26

7:39 pm-9:14 pm

Nonstop2h 35m

$79

Las VegasDenver

LAS - DEN

LASDEN

Las Vegas Harry Reid Intl

Tue 1/6

12:59 am-3:58 am

Nonstop1h 59m

Denver Intl

Sat 1/10

6:43 pm-7:52 pm

Nonstop2h 09m

$84

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Thu 1/22

6:30 am-10:05 am

Nonstop2h 35m

Denver Intl

Mon 1/26

3:46 pm-9:06 pm

1 stop6h 20m

$86

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Fri 1/30

6:30 am-10:05 am

Nonstop2h 35m

Denver Intl

Sun 2/1

6:00 am-10:25 am

1 stop5h 25m

$89

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Fri 1/16

4:56 pm-8:25 pm

Nonstop2h 29m

Denver Intl

Sun 1/18

6:00 am-10:08 am

1 stop5h 08m

$97

Las VegasDenver

LAS - DEN

LASDEN

Las Vegas Harry Reid Intl

Wed 1/14

12:59 am-3:56 am

Nonstop1h 57m

Denver Intl

Thu 1/22

9:10 am-4:25 pm

1 stop8h 15m

$105

Santa AnaDenver

SNA - DEN

SNADEN

Santa Ana J. Wayne/Orange Cnty

Sat 2/21

12:25 pm-3:48 pm

Nonstop2h 23m

Denver Intl

Fri 2/27

9:09 am-10:46 am

Nonstop2h 37m

$110

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Fri 2/6

6:30 am-9:59 am

Nonstop2h 29m

Denver Intl

Sun 2/8

10:48 pm-8:36 am

1 stop10h 48m

$116

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Thu 1/8

11:10 am-2:41 pm

Nonstop2h 31m

Denver Intl

Sun 1/11

9:05 pm-10:37 pm

Nonstop2h 32m

$117

Las VegasDenver

LAS - DEN

LASDEN

Las Vegas Harry Reid Intl

Thu 2/19

12:59 am-3:56 am

Nonstop1h 57m

Denver Intl

Mon 2/23

4:15 pm-10:04 pm

1 stop6h 49m

$123

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 60 results
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Best time to book a flight from California to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from California 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 California to Denver

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

Currently, January is the cheapest month in which you can book a flight from California to Denver (average of $24). Flying from California to Denver in July is currently the most expensive (average of $65). 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 DEN?

Find hourly flight availability from California to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

One of the essential ways to save on airfare from California to Denver is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 14% on airfare.

What is the cheapest day to fly from California to Denver?

Use this chart to determine the cheapest time to fly round-trip from California to Denver. Price data was last updated on December 13, 2025.

Travelers seeking maximum savings on their California to Denver flight should consider departing on Tuesday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from California to Denver?

Related info for your journey

Find useful and relevant information for your journey from California to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Denver from California?

    Located just 18.5 mi from the city center, Denver Intl (DEN) is the airport most travelers will use when flying to Denver from California.

  • How popular is this California to Denver flight route?

    Flights from California to Denver Intl have been viewed 451 times in the past calendar month.

  • How long is the flight from California to Denver?

    Airlines like Frontier, United Airlines, and Southwest fly from California to Denver in about 1h 59m. The time it takes to get you to your destination is usually consistent. The distance from California to Denver is about 626 mi. All flights are typically nonstop.

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

    The cheapest airlines for a one-way flight from California to Denver are Frontier ($30), Allegiant Air ($42), and Hawaiian Airlines ($48).

  • What are the most popular routes from California to Denver?

    While some choose either San Francisco - Denver Intl or Ontario - Denver Intl, Los Angeles - Denver Intl is the most popular route from California to Denver.

  • What are the most reliable airlines from California to Denver?

    No one likes to see their flight delayed. When booking a flight from California to Denver consider choosing Air France (97%), Asiana Airlines (95%) or Volaris (94%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from California to Denver?

    Looking for the cheapest flight from California to Denver? While on average our users pay $714, our data indicates the cheapest price to be $41. The most popular route (Los Angeles - Denver Intl), is priced around $58.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from California to Denver 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 California to Denver?

    Currently, January is the cheapest month in which you can book a flight from California to Denver (average of $24). Flying from California to Denver in July is currently the most expensive (average of $65). 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

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Black Hawk
Thornton
Broomfield
Westminster
Winter Park
Golden
Greeley
Lone Tree
Lakewood
Cripple Creek
Silverthorne
Central City
Frisco
Wheat Ridge
Manitou Springs
Fort Morgan
Brighton
Longmont
Idaho Springs
Evergreen

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Top 8 airlines flying from California to Denver

Discover the top 8 airlines that operate flights from California to Denver. 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$38Average$167FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$68Average$192FlexibilityNo cancel feeOn-time85%
Allegiant AirCheapest$88Average$128FlexibilityNo cancel feeOn-time88%
DeltaCheapest$98Average$249FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$102Average$235FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$117Average$297FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$135Average$319FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$148Average$323FlexibilityNo cancel feeOn-time71%

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