$28 Find Cheap Flights from Colorado to California

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Low season

February

High season

April

Cheapest flight

$28
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from Denver to San Francisco

Flights from Colorado to California: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Colorado to California 
JustinFlew with FrontierDEN-ONTMar 2025
Bring your credit card - lots of fun places to eat at the airport
Verified travelerFlew with Qantas AirwaysDEN-LAXSep 2024
You don’t have to arrive two hours early since it is a domestic flight
ChristineFlew with SouthwestDEN-LGBAug 2024
I always fly Southwest. I actually don’t mind they are moving to Assigned seating. Easy boarding. On time. Smooth landing. Long Beach is small airport and easy to Navigate.
AndrewFlew with United AirlinesDEN-LAXApr 2024
New DIA security for 2024 is much better
RalphFlew with SouthwestDEN-PSPFeb 2024
If you really want a better seat make sure you upgrade.

FAQs for booking flights from Colorado to California

  • How does KAYAK find such low prices on flights from Colorado to California?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Colorado to California.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Colorado to California?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Colorado to California is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Colorado to California?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Colorado to California with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Colorado to California?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Colorado to California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in California?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in California is Long Beach Municipal Airport (LGB), with an average flight price of $107.

  • What is the cheapest day to fly to California?

    Based on KAYAK data, the cheapest day to fly to California is Friday where round-trip tickets can be as cheap as $305. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $638 on average.

  • What is the cheapest time of day to fly to California?

    The cheapest time of day to fly to California is generally in the afternoon, when round-trip flights cost $316 on average. Morning departures are around 57% cheaper than evening flights, on average. The most expensive time of day to fly to California is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,016.

  • What is the cheapest flight to California?

    The cheapest ticket to California from Colorado found in the last 72 hours was to Los Angeles, at $34 round-trip. The most popular route is Aspen (ASE) to Los Angeles (LAX) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $34.

  • What is the cheapest month to fly from Colorado to California?

    The cheapest month for flights from Colorado to California is February, when tickets cost $331 (return) on average. On the other hand, the most expensive months are June and November, when the average cost of round-trip tickets is $612 and $490 respectively.

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

    To get a below average price on the flight from Colorado to California, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

  • How long is the flight to California?

    An average nonstop flight from Colorado to California takes 3h 24m, covering a distance of 779 miles. The shortest route is Grand Junction (GJT) to Las Vegas (LAS) with an average flight time of 1h 30m.

  • What are the most popular destinations in California?

    Based on KAYAK flight searches, the most popular destination is Las Vegas (33% of total searches to California). The next most popular destinations are San Francisco (11%) and Los Angeles (10%). Searches for flights to San Diego (10%), to Ontario (8%) and to Santa Ana (6%) are also popular.

See more FAQs

Top 5 airlines serving from Colorado to California

Need help choosing which airline to fly with from Colorado to California? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4274 reviews
7.6Entertainment
8.2Boarding
8.6Crew
8.0Comfort
7.1Food
Airline reviews

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

6.0 GoodCarolynn, Mar 2025KOA - SMF
Read more Southwest reviews

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

Great experience flying Southwest. The crew was really kind and helpful, and very friendly with our toddler.

Plane late from DC to Austin 30 minutes. Crew made up much of the time enroute to San Diego.

Fine, but how to board on SW versus othrr airlines, is just lame. Goood staff though and all was solid otherwise.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a not a great airport.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a hell hole of an airport. It is the new LaGuardia. Everything Cobbled together. Security gates closed. Terri directional signage

I will be flying again Southwest Airlines. Friendly crew, comfortable and affordable.

The plane arrived 25 minutes late, and the Wi-Fi was slower than it usually is.

Forget beverage, they didn't even have water for half the passangers?

Flights on time. .Ride was as comfortable as can be expected in steerage. Luggage arrived at destination. Attendants were fairly friendly.

Seats are much much more comfortable than United, which is what I usually fly

If I pay extra for "comfort+" I expect leg room where I can stretch my legs. I was seated with an attendant's seat blocking my feet. Knee space was fine but my feet had less room than the non-"comfort+" seats. Also, don't go cheap on food when you have flights of 3+ hours. It's insulting.

Only one side of the heafphone jack work. Crew was friendly and helpful.

Great. Flight departed early and arrived early. Deplaning and baggage claim ww were quick.

They separated our seats and moved us to the back of the plane. Hundreds of dollars and thousands of miles used and this was my platinum member experience.

AC barely worked on a 50 minute flight. It was very warm the whole flight. Flight was very bumpy and hard landing.

Got on the plane and then needed to deboard the plane because they didn’t have any pilots?

The flight was canceled two hours before departure, it took over five hours to rebook us on another flight.

First, the flight was schedule to leave at 12:08. Delayed to 12:38. It is 12:58 and I am sitting at the gate. The staff are not communicating with us (just tell me it’s gonna be five hours if that’s the case, quit hufflepuffing around like you’re trying to board us when the plane isn’t even here and you don’t know where your crew are. I’m still waiting for any communication about the further delay. This is a rebooked flight from a cancelled flight yesterday, when the airline failed to fulfill its fiduciary responsibility to hotel and cover transport for overnight cancelations. Asking about the food on the flight? What food?!? Delta doesn’t serve meals unless you pay for them and you really want me to give delta a high rating for passing out processed snacks (fun size!)? Can we be for real. Delta is cementing itself in history as one of the cheap, stingy, outdated, glory days are over airlines, and it shows. I took this flight knowing delta was going to provide below level service but this is beyond burgers!! I can’t believe a multi billion or dollar company looked straight in my eyes yesterday and I told me this wasn’t their fault and there for the extra cost in hotel and hundreds of dollars in Ubers are MY RESPONSIBILITY. The only thing I am at fault for is believing delta is reputable company worthy of my dollars. I’m not even sure I want to be compensated unless it is cash because I would rather die never traveling again than to put money in their pockets.

The gate was too far away for the connecting flight

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

The agents was very rude and they charged me $50 for a carry-on bag saying that it was too big and then I saw someone going on a plane with the same size bag as me

For the most part united was a good experience, how ever when they came by with the snacks and water, they completely passed by my wife and I. As we were in separate rows. On a 5 hr flight we were not offered water

Fantastic crew. Flight was delayed at last minute but we were given updates every 20 minutes and the crew was so friendly and considerate. I miss the touch screens on the back of the seats, wish they would bring that back though.

Awful. Worst airline I have ever been on. Crew were among the rudest people I have ever dealt with. United staff members were rude and disrespectful. My flight was delayed, causing me to miss a connecting flight. I understand things happen, but when staff start lying about what actually happened, that is when I have an issue. Just be honest, really it isn’t that hard. I’m being very honest with this review and I don’t find this difficult what so ever. In fact, because of United Airlines, my Christmas holiday was off to a really rocky start. As someone who has traveled across the world, it has only been United that I have had a truly awful experience.

Boarding always seems a bit chaotic. Seat spacing could leave more for leg room.

Good flight. On time. Boarding and seating was easy. Crew were really friendly, yet professional. Bathroom (by cockpit) was small but serviceable. Some the seats were showing some notable wear & tear, but were comfy. Very happy UA customer. TY! 🤛🏽💗

We arrived early and finally made it to our gate almost an hour after.

We were delayed 3x and because I didn’t purchase my tickets directly from United Airlines I was told I Have to take care of it myself so I called Underpricer and they helped me but before I changed my flights I took the risk of sticking by what my tickets were and was lucky to have gotten on the original all flight with only 15 mins before take off. not sure if I will do this again

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

Flight boarded from Gate 39 at OGG, the farthest gate in the terminal. There were no Hawaiian themed amenities for the flight. The first class service was mediocre at best; I received not special welcome or recognition as an executive platinum member of American Advantage program. The flight attendants were more concerned with their cell phones than saying "thank you" to the passengers as we disembarked. Fortunately, the flight arrived at LAX a few minutes early.

Bigger seats. Board back to front! Disembark front to back!

Extraordinary service in business class, and very good breakfast and snacks. A really lovely flight.

This flight didn’t happen because AA agents didn’t let us board the flight

Plane was pretty clean, staff was friendly and helpful, flight left about on time arrived early. Took a long time to board and get off the plane - carry on items didn't have enough room so people had to move all around to find places.

The service and food needs to improve to catch up with other international flights

Would have been good to have a meal since it was a 5.5 hour flight

We boarded after several delays due to mechanical failure and a gate change. The seat cushion in the exit row was very compressed and offered no cushion, making the four-hour journey reasonably uncomfortable. The WiFi worked for a few people, but for most, it did not, and you cannot get entertainment unless you can connect—American Airlines flights do not have seatback screens, and you must use your mobile phone.

AA is always pretty solid. Was on time all the way around today so can’t complain!

Everything went as planned. Crew was great. Seats were still not that comfortable.

No frills for sure. No gate announcements about flight delay, not even water to drink on the flight.

they delayed my flight which ended up, causing my layover flight to leave without me, resulting in me missing a flight and having to stay overnight in Houston international. I got no compensation other than a flight to my original location only a day later. i’ve never experienced such a unprofessional situation

The plane was clean, the crew was friendly and helpful. It’s a low cost airline so there was no food, drinks or in flight entertainment but we didn’t expect any of these things. In the room for improvement department, they should install USB ports in seats to charge mobile devices.

The seats were extremely hard and uncomfortable, even for a budget airline.

Boarding was very well executed. Got my bag right away.

I was surprised that all baggage, including carry on, were charged. Each additional bag went up in cost. Really disappointed in the additional costs.

Overall experience good. There was no food and seats were not terribly comfortable.

Charges unexpected. For seat that didnt recline. Please reverse extra seat and carryon charge. Bad business that is a bait and switch.

I couldn’t check in because the app didn’t work. It took 3 Frontier employees at the counter to get me checked in. Flight left 3 hours after departure time

Book cheap flights from Colorado to California

Recent round-trip flight deals

5/19Mon
nonstopFrontier
2h 01mDEN-LAS
5/21Wed
nonstopFrontier
2h 04mLAS-DEN
$56
5/15Thu
nonstopFrontier
2h 22mDEN-ONT
5/17Sat
nonstopFrontier
2h 18mONT-DEN
$56
4/29Tue
nonstopSouthwest
2h 15mDEN-ONT
5/3Sat
nonstopSouthwest
2h 10mONT-DEN
$97
5/5Mon
nonstopUnited Airlines
2h 36mDEN-LAX
5/5Mon
nonstopUnited Airlines
2h 26mLAX-DEN
$132
4/27Sun
nonstopUnited Airlines
2h 50mDEN-SFO
5/1Thu
nonstopUnited Airlines
2h 38mSFO-DEN
$141
5/2Fri
nonstopSouthwest
2h 40mDEN-SFO
5/5Mon
1 stopSouthwest
5h 45mSFO-DEN
$151
5/1Thu
nonstopDelta
2h 33mDEN-LAX
5/4Sun
nonstopDelta
2h 20mLAX-DEN
$158
5/9Fri
1 stopDelta
5h 08mDEN-LAS
5/11Sun
1 stopDelta
4h 19mLAS-DEN
$177
4/29Tue
1 stopAmerican Airlines
5h 34mDEN-BUR
4/30Wed
1 stopAmerican Airlines
4h 13mBUR-DEN
$197
5/3Sat
1 stopAmerican Airlines
4h 49mDEN-SNA
5/7Wed
1 stopAmerican Airlines
5h 09mSNA-DEN
$199

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Recent one-way flight deals

4/24Thu
nonstopFrontier
2h 55mDEN-SFO
$28
7/9Wed
nonstopFrontier
2h 05mDEN-LAS
$28
5/15Thu
nonstopDelta
2h 33mDEN-LAX
$69
5/11Sun
nonstopUnited Airlines
2h 50mDEN-SFO
$71
4/29Tue
1 stopSouthwest
4h 25mDEN-LAS
$76
5/24Sat
nonstopUnited Airlines
2h 01mDEN-LAS
$79
5/2Fri
1 stopSouthwest
5h 45mDEN-ONT
$79
4/25Fri
1 stopDelta
6h 20mDEN-LAS
$89
5/8Thu
1 stopAmerican Airlines
5h 01mDEN-SFO
$100
5/3Sat
1 stopAmerican Airlines
4h 05mDEN-SNA
$100

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Last minute flights from Colorado to California

Last minute flight, train and bus deals

4/5Sat
multi-stopFrontier
5h 00mDEN-SAN
4/5Sat
multi-stopFrontier
5h 10mSAN-DEN
$139
4/8Tue
multi-stopFrontier
6h 21mDEN-SAN
4/12Sat
multi-stopFrontier
5h 10mSAN-DEN
$144
4/8Tue
multi-stopSouthwest
8h 55mDEN-SAN
4/15Tue
multi-stopSouthwest
4h 05mSAN-DEN
$303
4/8Tue
multi-stopSouthwest
7h 45mDEN-LAS
4/12Sat
multi-stopSouthwest
3h 30mLAS-DEN
$313
4/6Sun
nonstopUnited Airlines
2h 04mDEN-LAS
4/9Wed
nonstopUnited Airlines
1h 56mLAS-DEN
$434
4/8Tue
multi-stopAmerican Airlines
5h 01mDEN-LAX
4/14Mon
multi-stopAmerican Airlines
9h 53mLAX-DEN
$435
4/4Fri
multi-stopUnited Airlines
4h 36mDEN-LAS
4/12Sat
nonstopUnited Airlines
1h 59mLAS-DEN
$444
4/4Fri
multi-stopDelta
4h 40mDEN-LAS
4/12Sat
multi-stopDelta
4h 13mLAS-DEN
$489
4/4Fri
multi-stopDelta
4h 40mDEN-LAS
4/10Thu
multi-stopDelta
4h 39mLAS-DEN
$509
4/7Mon
multi-stopAmerican Airlines
14h 32mDEN-LAX
4/10Thu
multi-stopAmerican Airlines
4h 18mLAX-DEN
$629

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Everything you need to know for your flight to California

Cabin class types available on flights to Colorado

Cabin classes available on flights to Colorado. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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