AZA - DEN

Find cheap flights from Phoenix-Mesa Gateway to Denver

1 adult
1 adult, Economy

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

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

Cheap Flights from Phoenix-Mesa Gateway to Denver (AZA-DEN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Phoenix-Mesa Gateway to Denver 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-Mesa Gateway to Denver

Multiple Airlines Logo
AZA-DEN
595 mimulti-stop
Multiple Airlines Logo
DEN-AZA
595 mimulti-stop
Multiple Airlines
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Booking Insights

KAYAK's insights & trends for Phoenix-Mesa Gateway to Denver flights

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

What’s the cheapest day of the week to fly from Phoenix-Mesa Gateway to Denver?

The average price of all round-trip flights from Phoenix-Mesa Gateway Airport to Denver clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Denver on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from Phoenix-Mesa Gateway to Denver. For your return ticket, we recommend flying on a Tuesday and avoiding Fridays for the best deals.

What is the cheapest month to fly from Phoenix-Mesa Gateway Airport to Denver?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Phoenix-Mesa Gateway Airport to Denver, 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-Mesa Gateway Airport to Denver is November, where tickets cost $109 (return) on average. On the other hand, the most expensive months are January and June, where the average cost of round-trip tickets is $344 and $197 respectively.

Good to know

Low seasonFebruary
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly and prices are also 12% lower on average.

When to book flights from Phoenix-Mesa Gateway to Denver

Are your dates flexible? Find out the best times to travel from Phoenix-Mesa Gateway to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Phoenix-Mesa Gateway to Denver flights

  • Do I need a passport to fly between Phoenix-Mesa Gateway and Denver?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which aircraft models fly most regularly from Phoenix-Mesa Gateway to Denver?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Phoenix-Mesa Gateway to Denver?

    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-Mesa Gateway to Denver.

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

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

    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 to Denver with an airline and back to Phoenix-Mesa Gateway with another airline. Booking your flights between Phoenix-Mesa Gateway and DEN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Phoenix-Mesa Gateway to Denver?

    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 to Denver from Phoenix-Mesa Gateway up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Phoenix-Mesa Gateway to Denver

 
See real verified KAYAK customer reviews for airlines flying from Phoenix to Denver. 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-Mesa Gateway to Denver? 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.
5.9
FrontierOverall score based on 3239 reviews
4.7Food
4.5Entertainment
6.1Boarding
6.7Crew
5.6Comfort
Airline reviews

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.

2.0 MediocreAnonymous, Jul 2025DCA - DEN
Read more Frontier reviews

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-Mesa Gateway to Denver

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