What airlines fly to Colorado?

Frontier, United Airlines and Southwest are the top three most popular airlines that fly to Colorado from California according to our data. Frontier is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Colorado. Keep in mind that there are 9 different airlines that fly to Colorado on a routine basis, so you have a few additional options to choose from.

How many flights depart from California to Colorado on average per day?

As of November 2026, there are 202 flights per day flying from California to Colorado. The most common time of day flights depart is 2:00PM, with 38% of flights taking off in the afternoon.

How many flights depart from California to Colorado on average per week?

As of November 2026, 1,415 flights take off from California and land in Colorado each week. The most common flight departure day for this route is Fri, with 19% of weekly flights taking off on this day.

What is the cheapest airline that flies from California to Colorado?

Frontier, United Airlines, and Delta are the most popular carriers operating from California to Colorado

How long is the flight from California to Colorado?

Flight times from California to Colorado vary, but if you’re flying out of Santa Ana and flying into Denver (one of the most popular routes), then the duration is 2h 10m on average. Another popular route from California to Colorado is flying from San Diego to Denver, which will take roughly 2h 13m. Keep in mind that layovers or delays could extend your travel time.

When did momondo last update prices for flights from California to Colorado?

Prices for flights from California to Colorado were last updated today.

How many operators does momondo search for flights from California to Colorado?

As of November 2026, there are 7 operators available to choose from for flights from California to Colorado.

How old do you have to be to fly from California to Colorado?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from California to Colorado.

What documentation or ID do you need to fly to Colorado?

The travel and health documents required for your trip to Colorado can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Colorado. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$22 Cheap Flights from California to Colorado in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from California to Colorado

Round-trip

One-way

Last minute

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Cheap round-trip flights

Enter your travel dates to find the best prices.

7:26 pm - 10:10 amONT Ontario-DEN Denver Intl

13h 44m1 stop San Francisco

8:55 pm - 10:17 pmDEN Denver Intl-ONT Ontario

2h 22mnonstop

$81Frontier

Tue, Dec 8 - Wed, Dec 9

6:00 am - 9:24 amONT Ontario-DEN Denver Intl

2h 24mnonstop

8:57 pm - 11:23 pmDEN Denver Intl-ONT Ontario

27h 26m1 stop San Francisco

$81Frontier

Wed, Dec 9 - Tue, Dec 15

6:00 am - 9:24 amONT Ontario-DEN Denver Intl

2h 24mnonstop

3:22 pm - 10:59 pmDEN Denver Intl-ONT Ontario

8h 37m1 stop Seattle/Tacoma Intl

$109Multiple Airlines

Sat, Dec 12 - Mon, Dec 14

4:16 pm - 7:45 pmLAX Los Angeles-DEN Denver Intl

2h 29mnonstop

11:49 am - 8:19 pmDEN Denver Intl-LAX Los Angeles

9h 30m1 stop Portland

$109Multiple Airlines

Sat, Dec 12 - Mon, Jan 4

1:40 pm - 4:55 pmONT Ontario-DEN Denver Intl

2h 15mnonstop

7:45 pm - 9:11 pmDEN Denver Intl-ONT Ontario

2h 26mnonstop

$137United Airlines

Sat, Dec 12 - Mon, Dec 14

1:50 pm - 5:05 pmONT Ontario-DEN Denver Intl

2h 15mnonstop

6:40 pm - 8:00 pmDEN Denver Intl-ONT Ontario

2h 20mnonstop

$137Southwest

Wed, Jan 27 - Sat, Jan 30

1:50 pm - 5:05 pmONT Ontario-DEN Denver Intl

2h 15mnonstop

3:20 pm - 4:40 pmDEN Denver Intl-ONT Ontario

2h 20mnonstop

$137Southwest

Fri, Jan 22 - Wed, Jan 27

6:55 pm - 10:26 pmLAX Los Angeles-DEN Denver Intl

2h 31mnonstop

6:15 am - 8:04 amDEN Denver Intl-LAX Los Angeles

2h 49mnonstop

$137American Airlines

Thu, Jan 14 - Wed, Jan 20

2:44 pm - 6:13 pmLAX Los Angeles-DEN Denver Intl

2h 29mnonstop

7:27 am - 9:20 amDEN Denver Intl-LAX Los Angeles

2h 53mnonstop

$137American Airlines

Fri, Dec 4 - Mon, Dec 7

1:40 pm - 4:55 pmONT Ontario-DEN Denver Intl

2h 15mnonstop

7:45 pm - 9:11 pmDEN Denver Intl-ONT Ontario

2h 26mnonstop

$154United Airlines

Thu, Dec 3 - Mon, Dec 7

Cheap last minute flights

Enter your travel dates to find the best prices.

6:15 am - 9:45 amLAX Los Angeles-DEN Denver Intl

2h 30mnonstop

2:14 pm - 5:59 pmDEN Denver Intl-LAX Los Angeles

4h 45m1 stop Phoenix Sky Harbor Intl

$116Frontier

Sat, Nov 14 - Sun, Nov 15

6:15 am - 9:45 amLAX Los Angeles-DEN Denver Intl

2h 30mnonstop

10:29 pm - 11:59 pmDEN Denver Intl-LAX Los Angeles

2h 30mnonstop

$147Frontier

Sat, Nov 14 - Fri, Dec 11

6:19 pm - 11:44 pmSMF Sacramento Intl-DEN Denver Intl

4h 25m1 stop Las Vegas Harry Reid Intl

3:22 pm - 11:08 pmDEN Denver Intl-SMF Sacramento Intl

8h 46m1 stop Seattle/Tacoma Intl

$340Multiple Airlines

Tue, Nov 10 - Wed, Dec 16

2:03 pm - 5:35 pmLAX Los Angeles-DEN Denver Intl

2h 32mnonstop

6:01 am - 2:20 pmDEN Denver Intl-LAX Los Angeles

9h 19m1 stop Seattle/Tacoma Intl

$360Multiple Airlines

Sat, Nov 14 - Tue, Nov 24

5:00 am - 11:10 amLAX Los Angeles-DEN Denver Intl

5h 10m2 stops Phoenix Sky Harbor Intl Colorado Springs

6:05 pm - 10:00 pmDEN Denver Intl-LAX Los Angeles

4h 55m1 stop San Jose

$396Southwest

Fri, Nov 13 - Mon, Dec 14

9:08 am - 12:36 pmBUR Hollywood Burbank-DEN Denver Intl

2h 28mnonstop

8:00 am - 9:37 amDEN Denver Intl-BUR Hollywood Burbank

2h 37mnonstop

$410United Airlines

Sat, Nov 14 - Wed, Nov 25

9:35 am - 12:55 pmBUR Hollywood Burbank-DEN Denver Intl

2h 20mnonstop

4:30 pm - 6:00 pmDEN Denver Intl-BUR Hollywood Burbank

2h 30mnonstop

$410Southwest

Sat, Nov 14 - Wed, Nov 25

4:11 pm - 11:59 pmBUR Hollywood Burbank-DEN Denver Intl

6h 48m1 stop San Francisco

8:00 am - 9:37 amDEN Denver Intl-BUR Hollywood Burbank

2h 37mnonstop

$416United Airlines

Sat, Nov 14 - Wed, Nov 25

6:39 pm - 10:09 pmLAX Los Angeles-DEN Denver Intl

2h 30mnonstop

12:17 pm - 1:57 pmDEN Denver Intl-LAX Los Angeles

2h 40mnonstop

$447American Airlines

Mon, Nov 9 - Wed, Nov 11

6:39 pm - 10:09 pmLAX Los Angeles-DEN Denver Intl

2h 30mnonstop

7:09 am - 9:20 amDEN Denver Intl-LAX Los Angeles

3h 11mnonstop

$447American Airlines

Tue, Nov 10 - Wed, Nov 11

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Frontier flights from California to Colorado

Our best Frontier deals on California to Colorado flight tickets

Frontier

Dec 9

ONT6:00 amOntario

2h 24m

DEN9:24 amDenver Intl

Dec 15

DEN8:57 pmDenver Intl

27h 26m

1 stop

ONT11:23 pmOntario

$81

Frontier

Dec 10

ONT11:30 amOntario

2h 25m

DEN2:55 pmDenver Intl

Dec 15

DEN2:09 pmDenver Intl

10h 14m

1 stop

ONT11:23 pmOntario

$82

Frontier

Dec 5

ONT6:00 amOntario

2h 24m

DEN9:24 amDenver Intl

Dec 9

DEN8:55 pmDenver Intl

2h 22m

ONT10:17 pmOntario

$83

Southwest flights from California to Colorado

Our best Southwest deals on California to Colorado flight tickets

Southwest

Dec 9

LAX11:00 amLos Angeles

5h 40m

1 stop

DEN5:40 pmDenver Intl

Dec 15

DEN8:30 pmDenver Intl

2h 35m

LAX10:05 pmLos Angeles

$147

Southwest

Dec 17

LAX8:30 amLos Angeles

3h 40m

1 stop

DEN1:10 pmDenver Intl

Dec 23

DEN5:45 amDenver Intl

4h 20m

1 stop

LAX9:05 amLos Angeles

$152

Southwest

Dec 10

SNA12:10 pmSanta Ana J. Wayne/Orange Cnty

2h 15m

DEN3:25 pmDenver Intl

Dec 14

DEN5:25 pmDenver Intl

2h 35m

SNA7:00 pmSanta Ana J. Wayne/Orange Cnty

$157

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioDenver

ONT Ontario - DEN Denver Intl

ONTDEN

Ontario

Tue 12/8

7:26 pm-10:10 am

1 stop13h 44m

Denver Intl

Wed 12/9

8:55 pm-10:17 pm

Nonstop2h 22m

$81

OntarioDenver

ONT Ontario - DEN Denver Intl

ONTDEN

Ontario

Wed 12/9

6:00 am-9:24 am

Nonstop2h 24m

Denver Intl

Tue 12/15

8:57 pm-11:23 pm

1 stop27h 26m

$81

OntarioDenver

ONT Ontario - DEN Denver Intl

ONTDEN

Ontario

Sat 12/12

6:00 am-9:24 am

Nonstop2h 24m

Denver Intl

Mon 12/14

3:22 pm-10:59 pm

1 stop8h 37m

$109

Los AngelesDenver

LAX Los Angeles - DEN Denver Intl

LAXDEN

Los Angeles

Sat 12/12

4:16 pm-7:45 pm

Nonstop2h 29m

Denver Intl

Mon 1/4

11:49 am-8:19 pm

1 stop9h 30m

$109

OntarioDenver

ONT Ontario - DEN Denver Intl

ONTDEN

Ontario

Sat 12/12

1:40 pm-4:55 pm

Nonstop2h 15m

Denver Intl

Mon 12/14

7:45 pm-9:11 pm

Nonstop2h 26m

$137

Quickest round-trip

OntarioDenver

ONT Ontario - DEN Denver Intl

ONTDEN

Ontario

Wed 1/27

1:50 pm-5:05 pm

Nonstop2h 15m

Denver Intl

Sat 1/30

6:40 pm-8:00 pm

Nonstop2h 20m

$137

OntarioDenver

ONT Ontario - DEN Denver Intl

ONTDEN

Ontario

Fri 1/22

1:50 pm-5:05 pm

Nonstop2h 15m

Denver Intl

Wed 1/27

3:20 pm-4:40 pm

Nonstop2h 20m

$137

Los AngelesDenver

LAX Los Angeles - DEN Denver Intl

LAXDEN

Los Angeles

Thu 1/14

6:55 pm-10:26 pm

Nonstop2h 31m

Denver Intl

Wed 1/20

6:15 am-8:04 am

Nonstop2h 49m

$137

Los AngelesDenver

LAX Los Angeles - DEN Denver Intl

LAXDEN

Los Angeles

Fri 12/4

2:44 pm-6:13 pm

Nonstop2h 29m

Denver Intl

Mon 12/7

7:27 am-9:20 am

Nonstop2h 53m

$137

OntarioDenver

ONT Ontario - DEN Denver Intl

ONTDEN

Ontario

Thu 12/3

1:40 pm-4:55 pm

Nonstop2h 15m

Denver Intl

Mon 12/7

7:45 pm-9:11 pm

Nonstop2h 26m

$154

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from California to Colorado

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

Prices

Airlines

Other information

What is the cheapest month to fly to Colorado?

The month of February is, on average, the cheapest month to fly to Colorado from California, with most prices found around $265. The month of January is another great option to travel to Colorado, with average flight prices from California averaging around $270.

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

The cheapest day to depart from California to Colorado is on a Saturday when prices can be found for as low as $297. On the other hand, Sunday is the most expensive day to depart from California because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $402.

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

The cheapest time of day to fly to Colorado is in the evening when flights can be purchased for as low as $282. In the morning is when there is more demand to fly to Colorado, so prices are often more expensive at around $336 per ticket.

What is the cheapest California to Colorado flight route?

Fly from Santa Ana J. Wayne/Orange Cnty to Colorado Springs for the best California - Colorado flight prices

How far in advance should I book a flight from California to Colorado?

You are more likely to see cheaper flights to Colorado from California when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around $248 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from California for as low as $185 on momondo.

What cabin class options are available on California to Colorado flights?

There are 4 cabin classes available to choose from on California to Colorado 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 Colorado flights?

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

Cheap California to Colorado flight deals and tips

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

Best Price Found	$22
Fastest flight time	1h 35m
Direct flights	Every day
Airports in Colorado	87 airports

The best one-way flight to Colorado from California in the past 72 hours is $22. The best round-trip flight deal from California to Colorado found on momondo in the last 72 hours is $81.

The fastest flight from California to Colorado takes 1h 35m

Direct flights go from California to Colorado every day.

There are 87 airports in Colorado. From California there are direct flights to Aspen Pitkin County (ASE), Denver Intl (DEN).

Search flight deals

Frequently asked questions about flying from California to Colorado

When did momondo last update prices for flights from California to Colorado?
Prices for flights from California to Colorado were last updated today.
How many operators does momondo search for flights from California to Colorado?
As of November 2026, there are 7 operators available to choose from for flights from California to Colorado.
How old do you have to be to fly from California to Colorado?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from California to Colorado.
What documentation or ID do you need to fly to Colorado?
The travel and health documents required for your trip to Colorado can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Colorado. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from California to Colorado?
Based on momondo bookings for flights between California and Colorado, the leading plane model is Airbus A321neo, making up 16.69% of the total bookings. Other popular models include Boeing 737 MAX 8 with 14.42%, Airbus A320neo with 10.12%, and Boeing 737-800 Passenger/BBJ2 (winglets) with 8.55%.

Best airlines flying from California to Colorado

Compare and see reviews for airlines that fly from California to Colorado with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $47	Free Cancellation	Rating 5.5 2,511 reviews	Search Frontier flights
Allegiant Air	PriceFrom $91	Free Cancellation	Rating 7.3 678 reviews	Search Allegiant Air flights
Delta	PriceFrom $99	Free Cancellation	Rating 7.8 8,702 reviews	Search Delta flights
Alaska Airlines	PriceFrom $117	Free Cancellation	Rating 7.9 13,155 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $117	Free Cancellation	Rating 8.0 4,214 reviews	Search Southwest flights
United Airlines	PriceFrom $121	Free Cancellation	Rating 7.3 10,472 reviews	Search United Airlines flights
Breeze Airways	PriceFrom $128	Free Cancellation	Rating 8.2 324 reviews	Search Breeze Airways flights
JetBlue	PriceFrom $133	Free Cancellation	Rating 7.1 3,065 reviews	Search JetBlue flights
American Airlines	PriceFrom $170	Free Cancellation	Rating 7.0 12,232 reviews	Search American Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from California to Colorado. momondo saves you time and could save you money on your trip.

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

Flights from California to Colorado with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from California to Colorado.

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

Yes. momondo can track prices for California to Colorado flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Popular cities in Colorado

Flights to New Yorkfrom $63

Flights to Los Angelesfrom $38

Flights to Orlandofrom $55

Flights to Miamifrom $38

Flights to San Franciscofrom $38

Flights to Chicagofrom $75

Flights to Las Vegasfrom $38

Flights to Washington, D.C.from $46

Flights to Fort Lauderdalefrom $38

Flights to Bostonfrom $81

Flights to Atlantafrom $46

Flights to Dallasfrom $38

Cheap flights from California to Colorado from $22

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 Colorado departing on 12/16. 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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Frontier flights from California to Colorado

Our best Frontier deals on California to Colorado flight tickets

Southwest flights from California to Colorado

Our best Southwest deals on California to Colorado flight tickets

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See travel insights to Colorado from

How to get the cheapest flight ticket from California to Colorado

What is the cheapest month to fly to Colorado?

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

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

What is the cheapest California to Colorado flight route?

How far in advance should I book a flight from California to Colorado?

What cabin class options are available on California to Colorado flights?

Can stopping save me money on California to Colorado flights?

What is the cheapest airline that flies from California to Colorado?

What airlines fly to Colorado?

How many flights depart from California to Colorado on average per day?

How many flights depart from California to Colorado on average per week?

How long is the flight from California to Colorado?

Cheap California to Colorado flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in Colorado

Frequently asked questions about flying from California to Colorado

Best airlines flying from California to Colorado

Compare and see reviews for airlines that fly from California to Colorado with momondo

Why use momondo?

An easier way to manage your Colorado 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Colorado

Popular cities in Colorado

Popular flights according to clicks in the last 7 days on momondo

California flight routes

According to popular flight searches on momondo this year

Colorado flight routes

According to popular flight searches on momondo this year

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