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$57+ 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 8/1. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — DEN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$93
(Frontier)

One-way from

$57
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$223

Good round-trip deal

$88 or less

Good one-way deal

$42 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. 9% potential increase in price ($18 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 June 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 June 12, 2025.

This Frontier deal was found by Cheapflights users on 6/12. 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 7/224:07 pmLAS - DEN
Nonstop2h 12mFrontier
Tue 7/2210:29 pmDEN - LAS
Nonstop2h 05mFrontier
Deal found 6/12$93
This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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 8/712:59 amONT - DEN
Nonstop2h 20mFrontier
Mon 8/1110:29 pmDEN - ONT
Nonstop2h 21mFrontier
Deal found 6/12$119
This Cheapflightsfares deal was found by Cheapflights users on 6/10. 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 7/96:25 amSAN - DEN
Nonstop2h 37mFrontier
Wed 7/169:44 amDEN - SAN
Nonstop2h 26mFrontier
Deal found 6/10$127
This Frontier deal was found by Cheapflights users on 6/10. 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 8/96:15 amLAX - DEN
Nonstop2h 36mFrontier
Mon 8/1110:55 pmDEN - LAX
Nonstop2h 32mFrontier
Deal found 6/10$133
This FlightHub deal was found by Cheapflights users on 6/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/69:59 pmSFO - DEN
1 stop15h 00mFrontier
Mon 9/86:00 amDEN - SFO
Nonstop2h 46mFrontier
Deal found 6/9$136
This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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
Mon 8/189:42 amDEN - SNA
Nonstop2h 28mFrontier
Deal found 6/12$136
This United Airlines deal was found by Cheapflights users on 6/11. 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 8/3012:45 pmLAX - DEN
Nonstop2h 24mUnited Airlines
Sat 8/305:55 pmDEN - LAX
Nonstop2h 32mUnited Airlines
Deal found 6/11$140
This Delta deal was found by Cheapflights users on 6/10. 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 8/58:20 pmLAX - DEN
Nonstop2h 24mDelta
Wed 8/612:30 pmDEN - LAX
Nonstop2h 26mDelta
Deal found 6/10$151
This United Airlines deal was found by Cheapflights users on 6/12. 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 10/185:05 amSFO - DEN
Nonstop2h 35mUnited Airlines
Thu 10/236:03 amDEN - SFO
Nonstop2h 42mUnited Airlines
Deal found 6/12$157
This United Airlines deal was found by Cheapflights users on 6/11. 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 8/205:10 amONT - DEN
Nonstop2h 17mUnited Airlines
Tue 8/267:25 pmDEN - ONT
Nonstop2h 18mUnited Airlines
Deal found 6/11$157
This Southwest deal was found by Cheapflights users on 6/11. 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 8/205:45 pmSNA - DEN
Nonstop2h 15mSouthwest
Wed 9/37:25 pmDEN - SNA
Nonstop2h 25mSouthwest
Deal found 6/11$157
This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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 9/2512:03 pmBUR - DEN
Nonstop2h 31mFrontier
Sun 9/289:48 amDEN - BUR
Nonstop2h 30mFrontier
Deal found 6/12$166

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 June 12, 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

Las VegasDenver

LAS - DEN

LASDEN

Las Vegas Harry Reid Intl

Tue 7/22

4:07 pm-7:19 pm

Nonstop2h 12m

Denver Intl

Tue 7/22

10:29 pm-11:34 pm

Nonstop2h 05m

$93

OntarioDenver

ONT - DEN

ONTDEN

Ontario

Sat 8/9

12:59 am-4:19 am

Nonstop2h 20m

Denver Intl

Mon 8/11

7:53 am-9:13 am

Nonstop2h 20m

$119

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Wed 7/9

6:25 am-10:02 am

Nonstop2h 37m

Denver Intl

Wed 7/16

9:44 am-11:10 am

Nonstop2h 26m

$127

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Sat 8/9

6:15 am-9:51 am

Nonstop2h 36m

Denver Intl

Mon 8/11

10:55 pm-12:27 am

Nonstop2h 32m

$133

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Sat 9/6

9:59 pm-1:59 pm

1 stop15h 00m

Denver Intl

Mon 9/8

6:00 am-7:46 am

Nonstop2h 46m

$136

Santa AnaDenver

SNA - DEN

SNADEN

Santa Ana J. Wayne/Orange Cnty

Sat 8/16

11:56 am-3:28 pm

Nonstop2h 32m

Denver Intl

Mon 8/18

9:42 am-11:10 am

Nonstop2h 28m

$136

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Sat 8/30

12:45 pm-4:09 pm

Nonstop2h 24m

Denver Intl

Sat 8/30

5:55 pm-7:27 pm

Nonstop2h 32m

$140

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Tue 8/5

8:20 pm-11:44 pm

Nonstop2h 24m

Denver Intl

Wed 8/6

12:30 pm-1:56 pm

Nonstop2h 26m

$151

Santa AnaDenver

SNA - DEN

SNADEN

Santa Ana J. Wayne/Orange Cnty

Wed 8/20

5:45 pm-9:00 pm

Nonstop2h 15m

Denver Intl

Wed 9/3

7:25 pm-8:50 pm

Nonstop2h 25m

$157

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Sat 10/18

5:05 am-8:40 am

Nonstop2h 35m

Denver Intl

Thu 10/23

6:03 am-7:45 am

Nonstop2h 42m

$157

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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 June 12, 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 June 12, 2025.

The most flights from USCA to DEN are scheduled on a Wednesday (98 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (61 on average).

Rainfall in Denver by month

Plan your trip to Denver by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Denver ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Denver when rainfall is around 0.5 in.

Temperature in Denver by month

Plan your trip to Denver by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Denver, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 June 12, 2025.
Read through reviews of airlines operating flights from California to Denver, such as Alaska Airlines, Southwest and Delta. 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

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 374 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 ($57), Southwest ($69), and United Airlines ($73).

  • 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 (91%), Frontier (85%) or Air France (84%) 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 $902, our data indicates the cheapest price to be $75. The most popular route (Los Angeles - Denver Intl), is priced around $120.

  • 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 California?

Book flights to California if you plan to visit one of these locations
Westminster
Black Hawk
Winter Park
Lakewood
Cripple Creek
Golden
Brighton
Silverthorne
Thornton
Frisco
Grand Lake
Broomfield
Central City
Glendale
Copper Mountain
Wheat Ridge
Longmont
Idaho Springs
Greeley
Limon

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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 7 airlines flying from California to Denver

Discover the top 7 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$38Average$145FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$87Average$101FlexibilityNo cancel feeOn-time88%
SouthwestCheapest$103Average$294FlexibilityNo cancel feeOn-time63%
DeltaCheapest$116Average$283FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$116Average$287FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$130Average$309FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$139Average$299FlexibilityNo cancel feeOn-time71%

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