$40 Find Cheap Flights from Phoenix to Colorado

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Phoenix to Colorado departing on 10/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Colorado

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phoenix to Colorado, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phoenix to Colorado, as well as popular online travel agencies
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Cheap Flights from Phoenix to Colorado

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Denver
Denvernonstop$59
Aspen
Aspen1 stop$331
Grand Junction
Grand Junctionnonstop$297
Durango
Durangononstop$252
Montrose
Montrose1 stop$213
Hayden
Hayden1 stop$329
Gunnison
Gunnison1 stop$299
Telluride
Telluridenonstop$392
Cortez
Corteznonstop$203
Vail
Vail2 stops$436
Denver
Denvernonstop$59
Aspen
Aspen1 stop$331
Grand Junction
Grand Junctionnonstop$297
Durango
Durangononstop$252
Montrose
Montrose1 stop$213
Hayden
Hayden1 stop$329
Gunnison
Gunnison1 stop$299
Telluride
Telluridenonstop$392
Cortez
Corteznonstop$203
Vail
Vail2 stops$436

Book Cheap Phoenix to Colorado Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Phoenix to Colorado that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Phoenix to Colorado

Fri, Oct 3 - Sun, Oct 5
Frontier Logo
11:09 am - 2:06 pmPHX-DEN
1h 57mnonstop
Frontier Logo
6:30 am - 7:32 amDEN-PHX
2h 02mnonstop
$69Frontier
Find Deal
Thu, Sep 25 - Tue, Sep 30
Frontier Logo
6:32 am - 9:30 amPHX-DEN
1h 58mnonstop
Frontier Logo
8:55 pm - 9:53 pmDEN-PHX
1h 58mnonstop
$79Frontier
Find Deal
Wed, Aug 27 - Wed, Sep 3
Denver Air Connection Logo
6:20 pm - 8:50 pmPHX-CEZ
1h 30mnonstop
Denver Air Connection Logo
5:15 pm - 6:05 pmCEZ-PHX
1h 50mnonstop
$203Denver Air Connection
Find Deal
Mon, Sep 22 - Wed, Sep 24
American Airlines Logo
6:00 am - 1:32 pmPHX-MTJ
6h 32m1 stop
American Airlines Logo
2:38 pm - 8:54 pmMTJ-PHX
7h 16m1 stop
$213American Airlines
Find Deal
Wed, Aug 27 - Wed, Sep 3
Southwest Logo
8:00 pm - 10:40 pmPHX-COS
1h 40mnonstop
Southwest Logo
5:50 pm - 6:40 pmCOS-PHX
1h 50mnonstop
$217Southwest
Find Deal
Wed, Aug 27 - Thu, Sep 4
Denver Air Connection Logo
6:20 pm - 8:50 pmPHX-CEZ
1h 30mnonstop
Denver Air Connection Logo
5:15 pm - 6:05 pmCEZ-PHX
1h 50mnonstop
$218Denver Air Connection
Find Deal
Wed, Sep 3 - Wed, Sep 10
American Airlines Logo
6:00 am - 1:43 pmPHX-COS
6h 43m1 stop
American Airlines Logo
11:01 am - 5:53 pmCOS-PHX
7h 52m1 stop
$219American Airlines
Find Deal
Wed, Aug 27 - Wed, Sep 3
Southwest Logo
8:00 pm - 10:40 pmPHX-COS
1h 40mnonstop
Southwest Logo
6:00 am - 8:50 amCOS-PHX
3h 50m1 stop
$227Southwest
Find Deal
Tue, Nov 25 - Mon, Dec 1
United Airlines Logo
5:34 pm - 9:59 pmPHX-COS
4h 25m1 stop
United Airlines Logo
6:20 pm - 10:40 pmCOS-PHX
4h 20m1 stop
$237United Airlines
Find Deal
Tue, Aug 26 - Sat, Aug 30
United Airlines Logo
6:05 am - 12:47 pmPHX-MTJ
5h 42m1 stop
United Airlines Logo
1:43 pm - 5:03 pmMTJ-PHX
4h 20m1 stop
$257United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Phoenix to Colorado flights

Get data-powered insights and trends into flights from Phoenix to Colorado to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Phoenix Sky Harbor Intl Airport to Colorado flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Phoenix Sky Harbor Intl Airport to Colorado.

The cheapest ticket to Colorado from Phoenix Sky Harbor Intl Airport found in the last 72 hours was to Denver, at $103 round-trip. The most popular route is from Phoenix Sky Harbor Intl Airport (PHX) to Denver (DEN), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $103.

Can I save money by flying with a layover from Phoenix Sky Harbor Intl Airport to Colorado?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $534, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Phoenix Sky Harbor Intl Airport to Colorado?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Phoenix Sky Harbor Intl Airport to Colorado, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Phoenix Sky Harbor Intl Airport to Colorado is February, when tickets cost $104 (return) on average. On the other hand, the most expensive months are June and May, when the average cost of round-trip tickets is $198 and $187 respectively.

What’s the cheapest day of the week to fly from Phoenix to Colorado?

The average price of all round-trip flights from Phoenix Sky Harbor Intl Airport to Colorado clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Colorado on a Thursday and more expensive on a Sunday. On your return trip to Phoenix, you should consider flying back on a Saturday, and avoid Sundays for better deals.

How far in advance should I book a flight from Phoenix Sky Harbor Intl Airport to Colorado?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Phoenix Sky Harbor Intl Airport to Colorado, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Phoenix Sky Harbor Intl Airport to Colorado, you should book around 3 weeks before departure, which saves you about 41% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.


Good to know

Low seasonApril
Cheapest flight$40
Best time to beat the crowds with an average 0% drop in price.
Most popular time to fly with an average 15% increase in price.
Flight from Phoenix Sky Harbor Airport to Denver

FAQs - booking Colorado flights

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

    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 Phoenix to Colorado.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Phoenix to Colorado 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 Phoenix to Colorado?

    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 Phoenix to Colorado 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 Phoenix to Colorado?

    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 Phoenix to Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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

    The cheapest time of day to fly to Colorado is generally at night, when round-trip flights cost $185 on average. Morning departures are around 2% cheaper than evening flights, on average. The most expensive time of day to fly to Colorado is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $468.

Top tips for finding cheap flights to Colorado

  • Looking for a cheap flight? 25% of our users found tickets from Phoenix to the following destinations at these prices or less: Denver $101 one-way - $166 round-trip

Reviews of the top 5 airlines serving from Phoenix to Colorado

 
See real verified KAYAK customer reviews for airlines flying from Phoenix to Colorado. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Phoenix to Colorado? 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.
9.2
Denver Air ConnectionOverall score based on 13 reviews
9.3Comfort
9.2Boarding
9.8Crew
8.6Entertainment
8.9Food
Airline reviews

Great snacks and friendly people for check in at Pierre SD!

10.0 ExcellentAnonymous, Jul 2025PIR - DEN
Read more Denver Air Connection reviews

Great snacks and friendly people for check in at Pierre SD!

The connecting flight came in 45 min late but everything else was great

Absolutely easy travels and no cost cutting by the airline.

Their snacks and hospitality was amazing. They offered full sized snacks. Im talking full sized water bottles, full sized snickers bars, gold fish, full sized canned sodas, what ever you wanted they took care of it for FREE. The crew was really nice and hospitable. I was honestly shocked

The Southwest employees (all two of them) were very nice and cheerful despite the fact the line to self-check a bag (simply drop it off) was hundreds of people long. Thank God I arrived early to the airport because I stood in this line for at least an hour. Once on the flight that had been delayed by an hour, we had no Wi-Fi and thus no entertainment. Finally, I hope the investor strong arm tactics against Southwest pay off in a short-term windfall to your C-Suite because the rest of you are screwed. I have been a faithful Southwest customer for 15 years due to everything you just got rid of. I'm flying to Idaho and Washington in October, both places I used to simply book with Southwest without a second thought now with Frontier (Washington) and United (Idaho) because they offer everything the "new" Southwest does but cheaper and at better times, destinations, etc. This really makes me sad...

First time traveling on Southwest since bag fees were implemented. Usual good service. Just more expensive now.

Flights delayed by 4-6 hours. Boarding was a mess and unclear. Bags were not at arrival airport and had never even been put on the plane. No idea when I’ll get them. Don’t fly into Denver!

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

We sat on the plane on the tarmac for 4 hours.

After a 3 hour layover in Denver my flight was delayed over 5 hours! No explanation; no assistance; no offer to provide compensation; no one at Southwest was willing to offer any assistance. 8 hours in the Denver airport - ridiculous!

WiFi on the flight was not working. Thus, entertainment options were limited.

I really like open seating. I hate that I've heard this is going away. This is one of the unique things that makes Southwest my goto choice.

For the first time in a long time we had a flawless experience with Southwest. Both flights were early and no mechanical errors at all. We were shocked and pleasantly surprised 😮.

One of the crew performed a hilarious skit to accompany the standard instructions. Passengers enjoyed it so much they applauded at the end!

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

The woman gate agent in Phoenix was none too sympathetic about my check-in process as I am relatively new with using apps. I almost did not get on because she said I did not check-in. I thought I had via Kayak where I purchased a very expensive ticket. Lesson learned but to be told I may not get on as a matter of factly was difficult to hear.

Very rough getting into denver. my kid threw up it was so rough.

Why wasn't this flight departure scheduled eith another crew so that it could leave on time? When we arrived in Denver we had so little time between flights we had run to the connecting flight. We should received some credit for the inconvenience.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

Flight attendant moved my bag without notifying me and was rude to me when I asked him about it. There was no reason to move it.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Food choices were very limited. Taste of the dishes was average.

I didn't like that my paid for seat was changed 2 hours before my flight.

Overall, a good experience. The food, however, was subpar. The breakfast was a joke.

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Wonderful crew and early arrival to our destination. It was so nice to have free wifi access and movies too. Thank you!

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

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.

Service in first class no longer exists on American Airlines .

My seat was very worn. Otherwise I had an excellent flight

Boarding can be more efficiently done by having the back row passengers board first. This way, the other people do the have to wait for front row passengers to load their luggage in the overhead cabins. Food is simply pathetic for the price I paid. Cleanliness is simply poor; my seat was full of crumps.

Frontier Airlines was AWFUL. I was an hour early for my flight and the lady refused to check me in. I had to purchase a whole new ticket with a different airline.

Late, terrible communication, horrible planning of passenger seating until the literal last minute. One of the worst flying experiences of my life. Y'all suck

First of all, we never got on the connecting flight to Denver. They delayed our flight for two hours. If we would have gotten on that flight, we would have been stuck in Denver for 13 hours. So we re- routed our flight for a straight through flight to Oklahoma two days later. THEN, they delayed that flight for two hours. After that we were able to finally get on our flight and come home. Frontier Airlines - one of the worst airlines I have ever been on.

Terrible communication with weather delay, lost baggage, near impossible to reach customer service

My tickets got canceled on me by your site and I didn't have a flight. Then you kept sending me emails on the status of q flight I didn't have tickets for.

Flight was late. Missed connecting in Denver. My new flight is more than 24 hours later and I have no room, vouchers, or compensation, and might also be bumped from the one tomorrow.

This was one of the first frontier airline flights this spring that wasn't delayed. It actually left on time. Some of the flight crew did not look happy, they didn't smile when the passengers were boarding or getting off the plane, and the passengers initiated greetings, not the staff. To me this was an odd experience to have with any flight/airline. I had a bad experience booking this flight. The price didn't solidify until late hours into the night. Ever time I purchased the ticket, I either received a denial email or an error because the price has changed, but it was never reflected on the flyfrontier or kayak websites until way after midnight on the date of travel. This caused me anxiety and irritation with the websites. Then I noticed a mishap with my name on my voucher as I went to check in, it was incorrect. When I proceeded to correct it, Frontier had no easy, let alone free, way to remedy it. I couldn't correct my name without a $75 charge, I couldn't cancel my voucher to repurchase it with the correct name without a $100 charge, because it was too close to departure. Then calling frontier was nearly impossible to remedy the situation with a human. It's already difficult to want to choose frontier because of all the upcharges, but you feel kinda trapped into doing so because it's the more affordable airline.

Our flight was cancelled. They could do nothing to help us get another flight that was timely. Because the first leg was cancelled we were unable to get to our connection. We had to book on an entirely different airline for today. So we spent more money, lost a day of vacation and will never fly Frontier again, so the 'we are sorry, here is $100 credit' is a joke since we won't be flying on Frontier.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

Seats are uncomfortable but price is good. Guess I can put up with misery for four hours.

Everything you need to know for your flight from Phoenix to Colorado

Information on your arrival and departure airports

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