$72 Cheap Flights from Phoenix (PHX) to Denver (DEN)

View $72 flight on Tue, Jun 2, 2026Opens in a new window

Popular airlines from Phoenix Sky Harbor Intl. Airport (PHX) to Denver Intl. Airport (DEN)

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Cheap Flights from Phoenix to Denver (PHX-DEN)

Prices were available within the past 7 days and start at $72 for one-way flights and $146 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, Jun 2 - Sat, Aug 1
PHX
Phoenix
DEN
Denver
$146 Roundtrip, found 1 hour ago
$146
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Tue, Jun 2 from Phoenix to Denver, returning Sat, Aug 1, priced at $146 found 1 hour ago
Frontier Airlines
Tue, Jun 2 - Sat, Jun 6
PHX
Phoenix
DEN
Denver
$150 Roundtrip, just found
$150
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Jun 2 from Phoenix to Denver, returning Sat, Jun 6, priced at $150 just found
Frontier Airlines
Wed, Jun 24 - Sat, Jun 27
PHX
Phoenix
DEN
Denver
$162 Roundtrip, just found
$162
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Jun 24 from Phoenix to Denver, returning Sat, Jun 27, priced at $162 just found
Frontier Airlines
Wed, Aug 26 - Wed, Sep 2
PHX
Phoenix
DEN
Denver
$165 Roundtrip, found 4 hours ago
$165
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Wed, Aug 26 from Phoenix to Denver, returning Wed, Sep 2, priced at $165 found 4 hours ago
Frontier Airlines
Mon, Aug 24 - Wed, Sep 2
PHX
Phoenix
DEN
Denver
$166 Roundtrip, just found
$166
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, Aug 24 from Phoenix to Denver, returning Wed, Sep 2, priced at $166 just found
Frontier Airlines
Wed, Aug 26 - Wed, Sep 2
PHX
Phoenix
DEN
Denver
$170 Roundtrip, found 4 hours ago
$170
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Wed, Aug 26 from Phoenix to Denver, returning Wed, Sep 2, priced at $170 found 4 hours ago
Delta
Tue, Aug 25 - Wed, Sep 2
PHX
Phoenix
DEN
Denver
$177 Roundtrip, found 1 day ago
$177
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Aug 25 from Phoenix to Denver, returning Wed, Sep 2, priced at $177 found 1 day ago
Alaska Airlines
Wed, Jul 8 - Tue, Jul 14
PHX
Phoenix
DEN
Denver
$185 Roundtrip, just found
$185
Roundtrip
just found
Select Alaska Airlines flight, departing Wed, Jul 8 from Phoenix to Denver, returning Tue, Jul 14, priced at $185 just found
American Airlines
Wed, Sep 16 - Sat, Sep 19
PHX
Phoenix
DEN
Denver
$232 Roundtrip, just found
$232
Roundtrip
just found
Select American Airlines flight, departing Wed, Sep 16 from Phoenix to Denver, returning Sat, Sep 19, priced at $232 just found
Southwest Airlines
Wed, Jul 15 - Sat, Jul 18
PHX
Phoenix
DEN
Denver
$241 Roundtrip, just found
$241
Roundtrip
just found
Select Southwest Airlines flight, departing Wed, Jul 15 from Phoenix to Denver, returning Sat, Jul 18, priced at $241 just found

Alternative airports near Denver

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Denver Intl. DEN. Cheapest option available. Average driving time to city center is 32 minutes. Flights from $237
DEN
Denver Intl.
Cheapest
Average driving time to city center32 min
Flights from $237

What you need to know for your flight from Sky Harbor Intl. to Denver Intl.

Phoenix (PHX) to Denver (DEN) at a glance

Travel from Phoenix (PHX) to Denver (DEN) with a range of airlines offering this popular short-haul route. You can explore various flights from Phoenix, comparing options from both full-service and low-cost carriers to find the best fit for your budget and schedule. With a quick flight time, you'll be ready to discover Denver's iconic attractions and vibrant neighborhoods. Check out essential details for flight departures from Sky Harbor International Airport to Denver International Airport.

  • Fastest flight duration: around 2 hours non-stop
  • Route distance: roughly 600 miles (970 km)
  • Flights per week: around 100+ flights with multiple daily departures on average
  • Typical fares (one-way): economy tickets often range from $40–$280, depending on seasonality and how far ahead you book

Flights from Sky Harbor International Airport (PHX) to Denver International Airport (DEN)

Based on recent traveler bookings, here are the top airlines favored for flights from Phoenix to Denver, particularly for non-stop and one-stop options. Common layover airports include San Diego International Airport (SAN) with a layover time of about 1 hour and 30 minutes, Salt Lake City International Airport (SLC) also around 1 hour and 30 minutes, and Harry Reid International Airport (LAS) with a 2-hour layover. These choices allow you to balance price, total travel time, and cabin class to create the ideal itinerary.

  • Southwest Airlines: As a budget-friendly airline, Southwest provides both non-stop and one-stop options, with one-way ticket prices generally ranging from $60 to $355. This carrier represents about 31% of departures on this route, with non-stop flights taking around 2 hours.
  • Frontier Airlines: Another low-cost option, Frontier offers non-stop and one-stop services, with typical one-way fares between $40 and $205. It makes up approximately 28% of the departures on this route, with a standard non-stop travel time of 2 hours.
  • United: Known as a full-service airline, United offers non-stop flights priced from $70 to $355 for one-way travel. It accounts for roughly 22% of the departures on this route, with a total travel duration of about 2 hours.
  • American Airlines: This full-service carrier features non-stop flights with one-way fares usually ranging from $70 to $325. American Airlines comprises around 18% of the flight departures on this route, maintaining a total journey time of 2 hours.
  • Alaska Airlines: Offering one-stop service, Alaska Airlines has one-way fares that typically fall between $90 and $180. The in-flight duration is approximately 3 hours and 30 minutes, with an overall journey time of about 5 hours and 15 minutes, including layover time.

Travelers can enhance their journey from Phoenix to Denver by upgrading to first class, with options available from both United and American Airlines.

Best time to fly from Phoenix (PHX) to Denver (DEN)

The most popular months for travelers flying from Phoenix to Denver are February, March, and April, when peak temperatures in Denver reach up to 45.3°F in April. If you prefer quieter travel, consider August, the least busy time to visit with temperatures around 71.2°F and typically the lowest average one-way fare (around $124). Flight availability peaks in October, with approximately 118 flights per week, making it easier to find convenient departure times. January has the fewest flights, with approximately 76 flights per week.

  • Cheapest time to fly: August usually offers good deals with average one-way fare around $124, roughly 6% cheaper than the yearly average.
  • More budget-friendly months to fly: September, October, and January typically offer average one-way fares of around $126.
  • Most flight options: October has the highest number of flights from Phoenix to Denver, with approximately 118 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January28.4°F (-2.0°C)Average76$127
February28.6°F (-1.9°C)Moderately High89$131
March38.5°F (3.6°C)Moderately High108$146
April45.3°F (7.4°C)Moderately High103$136
May54.0°F (12.2°C)Average113$128
June66.9°F (19.4°C)Moderately Low99$137
July72.1°F (22.3°C)Average92$132
August71.2°F (21.8°C)Moderately Low98$124
September65.1°F (18.4°C)Moderately Low101$126
October50.2°F (10.1°C)Average118$126
November38.5°F (3.6°C)Average115$143
December28.9°F (-1.7°C)Average102$132

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative route from Phoenix (PHX) to Denver (DEN)

  • Mesa to Denver (AZA-DEN): Phoenix - Mesa Gateway Airport (AZA) is located approximately 22 miles from Sky Harbor International Airport (PHX), providing convenient access for travelers heading to Denver.

How to find the best prices for flights from Phoenix (PHX) to Denver (DEN)

Getting some of the best deals on flights from Phoenix to Denver is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are generally found when booking 2 to 8 weeks in advance, which coincides with when most travelers make their reservations. Morning departures between 5 AM and 12 PM tend to be both cheaper and the most popular. Additionally, flying on Saturday usually offers lower prices, while Friday remains the most common travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Denver International Airport from Sky Harbor International Airport

Denver welcomes travelers from Phoenix with a range of transport options based on price, convenience, and proximity. Here's how to reach Denver efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Denver, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Denver International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Denver International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Denver International Airport, Jeppesen Terminal Station, a metro station, is located about 0.1 miles away on foot, providing convenient access to public transportation for travelers.

Frequently asked questions

How much does a flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Denver, CO (DEN-Denver Intl.) cost?
You can find cheap one-way flights from $72 and cheap return flights from $146 Phoenix, AZ (PHX-Sky Harbor Intl.) to Denver, CO (DEN-Denver Intl.) with Expedia. One-way flights generally range between $110 and $1073, and roundtrip flights usually range from $193 to $1552. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Phoenix, AZ (PHX-Sky Harbor Intl.) to Denver, CO (DEN-Denver Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Phoenix, AZ (PHX-Sky Harbor Intl.) to Denver, CO (DEN-Denver Intl.)?
February is the cheapest month to fly from Phoenix, AZ (PHX) to Denver, CO (DEN), with average return fares around $182. This price is about 20% lower than the average throughout the year, as demand is generally lower during the winter months. Other budget-friendly months include September and October.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Phoenix, AZ (PHX-Sky Harbor Intl.) to Denver, CO (DEN-Denver Intl.)?
Choose from 3 airlines operating direct flights from PHX to DEN:

  • United operates around 86 direct flights from PHX to DEN every week
  • American Airlines operates around 31 direct flights from PHX to DEN every week
  • Frontier Airlines operates around 36 direct flights from PHX to DEN every week

What is the cheapest airline that flies from Phoenix, AZ (PHX-Sky Harbor Intl.) to Denver, CO (DEN-Denver Intl.)?
JetBlue Airways is one of the cheapest airlines offering connecting flights from Sky Harbor Intl. (PHX) to Denver Intl. (DEN), with round-trip tickets starting from around $216. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Denver, CO (DEN-Denver Intl.)?
To find a cheap flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Denver, CO (DEN-Denver Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Phoenix, AZ (PHX-Sky Harbor Intl.) to Denver, CO (DEN-Denver Intl.)?
The best airline to fly with from Phoenix, AZ (PHX) to Denver, CO (DEN) will differ from traveler to traveler. If you like to fly early, WN offers early morning flights. If price is the most important factor, Frontier Airlines typically offers the lowest fares. WN offers the most daily flights from PHX to DEN, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Phoenix, AZ (PHX-Sky Harbor Intl.) to Denver, CO (DEN-Denver Intl.)?
For flights from Phoenix to Denver, February and September are ideal months to consider. You can find return flights for about $182 in February, which is perfect for escaping the winter chill. September also provides good prices and a lovely transition into fall, making it a great time to visit Denver.*Prices based on flights available on Expedia in the last year.
How many flights per day from Phoenix, AZ (PHX-Sky Harbor Intl.) to Denver, CO (DEN-Denver Intl.)?
On average, there are around 32 nonstop flights per day from Sky Harbor Intl. (PHX) to Denver Intl. (DEN). For more options, look at flights that include layovers.
What is the earliest flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Denver, CO (DEN-Denver Intl.)?
The earliest flight from Sky Harbor International Airport (PHX) to Denver International Airport (DEN) typically departs at around 12:00 AM, operated by Frontier Airlines. An early flight allows you to arrive in Denver with a full day ahead of you. This service operates seasonally in March. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Denver, CO (DEN-Denver Intl.)?
For flights from Sky Harbor International Airport (PHX) to Denver International Airport (DEN), the most popular departure times are in the early morning, from 6am to 9am. About 26% of passengers choose this time window. Many major carriers, including Southwest Airlines and Frontier Airlines, offer flights during this window. This timing works well because it allows you to make the most of your day in Denver.
How long does it take to fly from Phoenix, AZ (PHX-Sky Harbor Intl.) to Denver, CO (DEN-Denver Intl.)?
A nonstop flight from PHX to DEN typically takes around 2 hours, covering approximately 601 miles. Connecting flights on this route usually add 6 hours to your travel time. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Phoenix, AZ (PHX-Sky Harbor Intl.) to Denver, CO (DEN-Denver Intl.)?
You can fly first class between PHX and DEN. First class cabins are available on:

  • Delta Air Lines
  • United Airlines
  • American Airlines

How much is a business class flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Denver, CO (DEN-Denver Intl.)?
A direct, return business class ticket from Phoenix (PHX) to Denver (DEN) typically costs between $966 - $1,466. A non-stop, one-way business class flight is usually around $479 - $698. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Phoenix, AZ (PHX-Sky Harbor Intl.) to Denver, CO (DEN-Denver Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Phoenix, AZ (PHX-Sky Harbor Intl.) to Denver, CO (DEN-Denver Intl.) flight with Expedia?
It's easy to earn miles on a Phoenix, AZ (PHX-Sky Harbor Intl.) to Denver, CO (DEN-Denver Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Denver from Sky Harbor Intl. (PHX)?
From Sky Harbor Intl. (PHX), you can fly into Denver Intl. (DEN) to reach Denver. Some flights may connect through major hubs like San Diego Intl. (SAN), Portland Intl. (PDX), Harry Reid Intl. (LAS) before reaching Denver. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Phoenix, AZ (PHX-Sky Harbor Intl.) to Denver, CO (DEN-Denver Intl.) at the last minute?
Typically, booking a last minute flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Denver, CO (DEN-Denver Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Phoenix, AZ (PHX-Sky Harbor Intl.) to Denver, CO (DEN-Denver Intl.) flight and hotel package?
Securing a Phoenix, AZ (PHX-Sky Harbor Intl.) to Denver, CO (DEN-Denver Intl.) Denver Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Denver, CO (DEN-Denver Intl.)?
If you booked your Phoenix, AZ (PHX-Sky Harbor Intl.) to Denver, CO (DEN-Denver Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Sky Harbor Intl.
Destination airport
Denver Intl.
Roundtrip price
$146
Distance
601 mi
Average flight time
2 hours 45 mins

Book with confidence

Phoenix to Denver Flights

The cheapest times to fly from Phoenix to Denver

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Phoenix to Denver are during the month of June. You can find some of the cheapest flights from Phoenix to Denver with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Phoenix to Denver

Sunday is one of the best days to book for cheap flights from Phoenix to Denver: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Phoenix to Denver

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Phoenix to Denver in 2026. You can also book with separate airlines for your outbound and return journeys, from $72 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Phoenix to Denver flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Phoenix to Denver airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Phoenix to Denver Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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