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Cheap flights from California to Denver from $36

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from California to Denver departing on 5/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:25 am - 10:05 am
SAN
-
DEN
2h 40mnonstop
Frontier Logo
10:29 pm - 12:01 am
DEN
-
SAN
2h 32mnonstop
$55Frontier
Fri, Apr 17 - Mon, Apr 20
Frontier Logo
7:05 am - 10:40 am
SAN
-
DEN
2h 35mnonstop
Frontier Logo
7:00 am - 8:34 am
DEN
-
SAN
2h 34mnonstop
$56Frontier
Sat, May 9 - Sun, May 17
Frontier Logo
11:42 am - 3:23 pm
SAN
-
DEN
2h 41mnonstop
Frontier Logo
9:30 pm - 11:06 pm
DEN
-
SAN
2h 36mnonstop
$59Frontier
Sat, May 2 - Tue, May 12
Multiple Airlines Logo
4:07 pm - 3:56 am
LAX
-
DEN
10h 49m
1 stop
Multiple Airlines Logo
10:29 pm - 12:16 am
DEN
-
LAX
2h 47mnonstop
$82Multiple Airlines
Tue, Mar 3 - Sat, Mar 7
Multiple Airlines Logo
12:25 pm - 3:48 pm
SNA
-
DEN
2h 23mnonstop
Multiple Airlines Logo
10:30 pm - 12:25 pm
DEN
-
SNA
14h 55m
1 stop
$111Multiple Airlines
Sat, Feb 28 - Tue, Mar 10
Alaska Airlines Logo
3:18 pm - 11:59 pm
OAK
-
DEN
7h 41m
1 stop
Alaska Airlines Logo
1:02 pm - 6:39 pm
DEN
-
OAK
6h 37m
1 stop
$177Alaska Airlines
Tue, May 5 - Tue, May 12
Alaska Airlines Logo
10:24 am - 5:48 pm
SJC
-
DEN
6h 24m
1 stop
Alaska Airlines Logo
6:45 pm - 10:56 pm
DEN
-
SJC
5h 11m
1 stop
$177Alaska Airlines
Tue, Mar 10 - Wed, Mar 11
Southwest Logo
6:00 pm - 9:25 pm
OAK
-
DEN
2h 25mnonstop
Southwest Logo
7:00 am - 10:40 am
DEN
-
OAK
4h 40m
1 stop
$187Southwest
Tue, Mar 3 - Tue, Mar 10
Southwest Logo
6:00 pm - 9:25 pm
OAK
-
DEN
2h 25mnonstop
Southwest Logo
1:25 pm - 3:05 pm
DEN
-
OAK
2h 40mnonstop
$197Southwest
Tue, Mar 3 - Tue, Mar 10
Delta Logo
12:40 pm - 9:06 pm
OAK
-
DEN
7h 26m
1 stop
Delta Logo
6:15 pm - 11:46 pm
DEN
-
OAK
6h 31m
1 stop
$207Delta
Tue, Mar 3 - Tue, Mar 10

Frontier flights from California to Denver

Our best Frontier deals on California to Denver flight tickets
Frontier
Apr 17
SAN12:36 pmSan Diego
2h 34m
DEN4:10 pmDenver Intl
Apr 19
DEN10:29 pmDenver Intl
2h 32m
SAN12:01 amSan Diego
$55
Frontier
Apr 16
SAN12:36 pmSan Diego
2h 34m
DEN4:10 pmDenver Intl
Apr 20
DEN10:29 pmDenver Intl
2h 32m
SAN12:01 amSan Diego
$56
Frontier
May 2
SAN11:42 amSan Diego
2h 41m
DEN3:23 pmDenver Intl
May 12
DEN9:30 pmDenver Intl
2h 36m
SAN11:06 pmSan Diego
$59

Southwest flights from California to Denver

Our best Southwest deals on California to Denver flight tickets
Southwest
Feb 26
SAN3:20 pmSan Diego
2h 20m
DEN6:40 pmDenver Intl
Mar 1
DEN6:50 pmDenver Intl
2h 30m
SAN8:20 pmSan Diego
$117
Southwest
Mar 3
OAK6:00 pmOakland
2h 25m
DEN9:25 pmDenver Intl
Mar 10
DEN7:00 amDenver Intl
4h 40m
1 stop
OAK10:40 amOakland
$187
Southwest
Mar 3
OAK6:00 pmOakland
2h 25m
DEN9:25 pmDenver Intl
Mar 10
DEN1:25 pmDenver Intl
2h 40m
OAK3:05 pmOakland
$197

momondo 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, momondo users made 832,500 searches. Data last updated February 3, 2026.
Use the filters below to find and compare flights from California to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Fri 4/17

6:25 am-10:05 am

Nonstop2h 40m

Denver Intl

Mon 4/20

10:29 pm-12:01 am

Nonstop2h 32m

$55

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Sat 5/9

7:05 am-10:40 am

Nonstop2h 35m

Denver Intl

Sun 5/17

7:00 am-8:34 am

Nonstop2h 34m

$56

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Sat 5/2

11:42 am-3:23 pm

Nonstop2h 41m

Denver Intl

Tue 5/12

9:30 pm-11:06 pm

Nonstop2h 36m

$59

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Tue 3/3

4:07 pm-3:56 am

1 stop10h 49m

Denver Intl

Sat 3/7

10:29 pm-12:16 am

Nonstop2h 47m

$82

Santa AnaDenver

SNA - DEN

SNADEN

Santa Ana J. Wayne/Orange Cnty

Sat 2/28

12:25 pm-3:48 pm

Nonstop2h 23m

Denver Intl

Tue 3/10

10:30 pm-12:25 pm

1 stop14h 55m

$111

OaklandDenver

OAK - DEN

OAKDEN

Oakland

Tue 5/5

3:18 pm-11:59 pm

1 stop7h 41m

Denver Intl

Tue 5/12

1:02 pm-6:39 pm

1 stop6h 37m

$177

San JoseDenver

SJC - DEN

SJCDEN

San Jose

Tue 3/10

10:24 am-5:48 pm

1 stop6h 24m

Denver Intl

Wed 3/11

6:45 pm-10:56 pm

1 stop5h 11m

$177

OaklandDenver

OAK - DEN

OAKDEN

Oakland

Tue 3/3

6:00 pm-9:25 pm

Nonstop2h 25m

Denver Intl

Tue 3/10

7:00 am-10:40 am

1 stop4h 40m

$187

OaklandDenver

OAK - DEN

OAKDEN

Oakland

Tue 3/3

6:00 pm-9:25 pm

Nonstop2h 25m

Denver Intl

Tue 3/10

1:25 pm-3:05 pm

Nonstop2h 40m

$197

OaklandDenver

OAK - DEN

OAKDEN

Oakland

Tue 3/3

12:40 pm-9:06 pm

1 stop7h 26m

Denver Intl

Tue 3/10

6:15 pm-11:46 pm

1 stop6h 31m

$207

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Denver from

How to get the cheapest flight ticket from California to Denver

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Denver?

The cheapest month to fly to Denver from California is in September. Flight prices, which tend to average around $169, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in September, then you should wait until February to fly from California, when ticket prices are also cheap, with an average price of $177.

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Friday when prices can be found for as low as $262. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $331.

What is the cheapest time of day to depart on your flight to Denver?

The cheapest time of day to fly to Denver is in the evening when flights can be purchased for as low as $249. Flights in the afternoon are often more expensive with an average ticket price of $301.

What is the cheapest California to Denver Intl flight route?

Fly from San Diego to Denver Intl for the best California - Denver Intl flight prices

How far in advance should I book a flight to Denver?

You are more likely to see cheaper flights to Denver from California when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $200 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from California for as low as $155 on momondo.

What cabin class options are available on California to Denver Intl flights?

There are 4 cabin classes available to choose from on California to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on California to Denver flights?

No. A direct flight is the cheapest option for a flight between California to Denver.

Cheap California to Denver flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from California to Denver

Best Price Found

$105

Fastest flight time

1h 50m

Direct flights

Every day

Airports in Denver

1 airport
The best one-way flight to Denver from California in the past 72 hours is $105. The best round-trip flight deal from California to Denver found on momondo in the last 72 hours is $127.
The fastest flight from California to Denver takes 1h 50m
Direct flights go from California to Denver every day.
There is 1 airport in Denver. From California there are direct flights to Denver Intl (DEN).
Search flight deals

  • When did momondo last update prices for flights from California to Denver Intl Airport?

    Prices for flights from California to Denver Intl Airport refresh daily.

  • How many operators does momondo search for flights from California to Denver Intl Airport?

  • How old do you have to be to fly from California to Denver Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from California to Denver Intl Airport.

  • What documentation or ID do you need to fly to Denver Intl Airport?

    The required travel and health documents for your Denver Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Denver Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from California to Denver?

Best airlines flying from California to Denver

Compare and see reviews for airlines that fly from California to Denver with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $42Free CancellationRating
5.7
3,052 reviews
Search Frontier flights
DeltaPriceFrom $66Free CancellationRating
7.9
8,137 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $68Free CancellationRating
7.8
2,830 reviews
Search Hawaiian Airlines flights
Allegiant AirPriceFrom $88Free CancellationRating
7.2
709 reviews
Search Allegiant Air flights
Alaska AirlinesPriceFrom $102Free CancellationRating
8.0
11,832 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $117Free CancellationRating
8.0
4,273 reviews
Search Southwest flights
United AirlinesPriceFrom $130Free CancellationRating
7.4
9,232 reviews
Search United Airlines flights
American AirlinesPriceFrom $148Free CancellationRating
7.2
11,215 reviews
Search American Airlines flights

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Breckenridge
Estes Park
Black Hawk
Aurora
Fort Collins
Manitou Springs
Longmont
Cripple Creek
Boulder
Keystone
Greeley
Lakewood
Westminster
Thornton
Frisco
Copper Mountain
Winter Park
Centennial
Englewood
Grand Lake

Why use momondo?

Why should I use momondo to find a flight deal from California to Denver?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Denver from California.

Can I find flights from California to Denver with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Denver from California with this policy.

How can momondo help me find flights from California to Denver?

momondo provides multiple filters to help you find the best flight to Denver from California. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from California to Denver right now. Can momondo alert me if prices change?

If you are not ready to book a flight from California to Denver now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Denver and let you know when they change.

An easier way to manage your Denver trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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