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$50+ 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — DEN
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from California to Denver

Keep the following information in mind while searching for California to Denver flight deals. Data was last updated July 31, 2025.

Round-trip from

$76
(Cheapflightsfares)

One-way from

$50
(FlightHub)

Popular in

June

Cheapest in

January

Average price

$217

Good round-trip deal

$104 or less

Good one-way deal

$46 or less
From California to Denver Intl
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One-way flight from California to Denver Intl
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Highest demand for flights based on searches. 11% potential increase in price ($24 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from California to Denver Intl.
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Price to beat on a one-way flight from California to Denver Intl.
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Find 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 July 31, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/812:59 amONT - DEN
Nonstop2h 21mFrontier
Sun 10/128:31 amDEN - ONT
Nonstop2h 20mFrontier
Deal found 7/29$76
This Frontier deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/712:59 amLAS - DEN
Nonstop2h 00mFrontier
Sat 10/1810:29 pmDEN - LAS
Nonstop2h 03mFrontier
Deal found 7/30$101
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/83:46 pmLAX - DEN
Nonstop2h 35mFrontier
Wed 11/1210:55 pmDEN - LAX
Nonstop2h 30mFrontier
Deal found 7/30$106
This Cheapflightsfares deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1511:21 amSAN - DEN
Nonstop2h 41mFrontier
Mon 8/1810:29 pmDEN - SAN
Nonstop2h 23mFrontier
Deal found 7/29$117
This Cheapflightsfares deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/512:06 pmSMF - DEN
Nonstop2h 39mFrontier
Sun 9/79:46 amDEN - SMF
Nonstop2h 35mFrontier
Deal found 7/28$121
This Cheapflightsfares deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/612:08 pmBUR - DEN
Nonstop2h 31mFrontier
Sun 11/99:48 amDEN - BUR
Nonstop2h 30mFrontier
Deal found 7/29$127
This Cheapflightsfares deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1611:56 amSNA - DEN
Nonstop2h 32mFrontier
Sat 9/610:40 amDEN - SNA
Nonstop2h 33mFrontier
Deal found 7/29$130
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/308:18 amLAS - DEN
Nonstop2h 06mMultiple Airlines
Sun 8/3111:40 amDEN - LAS
1 stop6h 30mMultiple Airlines
Deal found 7/29$133
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/98:50 amSAN - DEN
Nonstop2h 25mSouthwest
Tue 9/237:00 pmDEN - SAN
Nonstop2h 25mSouthwest
Deal found 7/31$137
This Delta deal was found by Cheapflights users on 7/31. 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 10/18:04 amLAX - DEN
Nonstop2h 24mDelta
Wed 10/17:21 pmDEN - LAX
Nonstop2h 32mDelta
Deal found 7/31$139
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3010:45 amLAS - DEN
Nonstop2h 00mSouthwest
Thu 9/49:35 pmDEN - LAS
Nonstop1h 55mSouthwest
Deal found 7/31$147
This Cheapflightsfares deal was found by Cheapflights users on 7/31. 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 8/186:37 amSFO - DEN
Nonstop2h 40mFrontier
Thu 8/219:45 amDEN - SFO
Nonstop2h 44mFrontier
Deal found 7/31$147

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 July 31, 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

OntarioDenver

ONT - DEN

ONTDEN

Ontario

Wed 10/8

12:59 am-4:20 am

Nonstop2h 21m

Denver Intl

Sun 10/12

8:31 am-9:51 am

Nonstop2h 20m

$76

Las VegasDenver

LAS - DEN

LASDEN

Las Vegas Harry Reid Intl

Tue 10/7

12:59 am-3:59 am

Nonstop2h 00m

Denver Intl

Sat 10/18

10:29 pm-11:32 pm

Nonstop2h 03m

$101

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Tue 8/26

6:45 am-10:21 am

Nonstop2h 36m

Denver Intl

Thu 8/28

10:55 pm-12:27 am

Nonstop2h 32m

$106

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Fri 8/15

11:21 am-3:02 pm

Nonstop2h 41m

Denver Intl

Mon 8/18

10:29 pm-11:52 pm

Nonstop2h 23m

$117

SacramentoDenver

SMF - DEN

SMFDEN

Sacramento Intl

Fri 9/5

12:06 pm-3:45 pm

Nonstop2h 39m

Denver Intl

Sun 9/7

9:46 am-11:21 am

Nonstop2h 35m

$121

BurbankDenver

BUR - DEN

BURDEN

Burbank Bob Hope

Thu 11/6

12:08 pm-3:39 pm

Nonstop2h 31m

Denver Intl

Sun 11/9

9:48 am-11:18 am

Nonstop2h 30m

$127

Santa AnaDenver

SNA - DEN

SNADEN

Santa Ana J. Wayne/Orange Cnty

Sat 8/16

11:56 am-3:28 pm

Nonstop2h 32m

Denver Intl

Sat 9/6

10:40 am-12:13 pm

Nonstop2h 33m

$130

Las VegasDenver

LAS - DEN

LASDEN

Las Vegas Harry Reid Intl

Sat 8/30

8:18 am-11:24 am

Nonstop2h 06m

Denver Intl

Sun 8/31

11:40 am-5:10 pm

1 stop6h 30m

$133

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Tue 9/9

8:50 am-12:15 pm

Nonstop2h 25m

Denver Intl

Tue 9/23

7:00 pm-8:25 pm

Nonstop2h 25m

$137

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Wed 10/1

8:04 am-11:28 am

Nonstop2h 24m

Denver Intl

Wed 10/1

7:21 pm-8:53 pm

Nonstop2h 32m

$139

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

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, October is the cheapest month in which you can book a flight from California to Denver (average of $197). Flying from California to Denver in March is currently the most expensive (average of $278). 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 July 31, 2025.

When flying from California to Denver, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from California to Denver

Explore weekly flight availability from California to Denver. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 31, 2025.

The most flights from USCA to DEN are scheduled on a Thursday (97 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (56 on average).

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

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated July 31, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from California to Denver. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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 387 times in the past calendar month.

  • 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 ($50), Southwest ($69), and Alaska Airlines ($78).

  • 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 EL AL (87%), Alaska Airlines (84%) or Cathay Pacific (82%) 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 $716, our data indicates the cheapest price to be $77. The most popular route (Los Angeles - Denver Intl), is priced around $80.

  • 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, October is the cheapest month in which you can book a flight from California to Denver (average of $197). Flying from California to Denver in March is currently the most expensive (average of $278). 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
Westminster
Black Hawk
Winter Park
Lakewood
Greeley
Cripple Creek
Brighton
Silverthorne
Golden
Thornton
Frisco
Grand Lake
Manitou Springs
Central City
Fort Morgan
Glendale
Copper Mountain
Wheat Ridge
Longmont
Broomfield

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Alternative routes for California to Denver

See prices for flight routes from nearby airports that may be better suited for you.
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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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$43Average$156FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$88Average$162FlexibilityNo cancel feeOn-time88%
Hawaiian AirlinesCheapest$98Average$232FlexibilityNo cancel feeOn-time85%
DeltaCheapest$116Average$277FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$116Average$307FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$119Average$291FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$130Average$316FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$141Average$294FlexibilityNo cancel feeOn-time71%

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