$89 Cheap United flights Denver (DEN) to Phoenix (PHX)

Landing cheap one-way United Airlines flights from DEN to PHX from $89 on Expedia couldn’t be simpler — just filter by “Price (lowest to highest).” Alternatively, check out our affordable return fares from $177 for your next exciting getaway.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Look for one-way or round-trip flights to Phoenix in July or August. You could find a cheap fare with United Airlines during these quieter months.

Start searching one to three months before your departure to find cheaper fares on United Airlines flights from Denver Intl. Airport (DEN) to Sky Harbor Intl. Airport (PHX). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Nail your timing, and you can enjoy significant savings on domestic flights.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Choose from one of United Airlines’s 57 direct weekly flights from Denver Intl. Airport (DEN) to Sky Harbor Intl. Airport (PHX). To see your options, enter your destination, origin and dates and hit search. Then apply the “Nonstop” and “Airline” filters.

On average, it takes 2h 3m to fly nonstop from Denver Intl. Airport (DEN) to Sky Harbor Intl. Airport (PHX) with United Airlines.

Saturday has the most United Airlines flights from Denver Intl. Airport (DEN) to Sky Harbor Intl. Airport (PHX). With 10 daily departures, this is the best day of the week to find something that will fit your plans.

Leaving DEN at 6:00AM UTC-7, the earliest United Airlines flight to PHX lands at 8:06AM UTC-7. Traveling early means you’re less likely to experience delays.* After something later? The last United Airlines flight from DEN to PHX departs at 8:57PM UTC-7 and touches down at 11:00PM UTC-7.*Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

United Airlines flights from Denver Intl. Airport (DEN) to Phoenix land at Sky Harbor Intl. Airport (PHX). This is the main entry point here.

Travel from DEN to PHX with United Airlines and look forward to a range of perks starting with a rewarding loyalty program. When you book through Expedia as a United Mileage Plus and One Key™ member, you could also earn OneKeyCash™* to spend on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

For the Denver Intl. Airport (DEN) to Sky Harbor Intl. Airport (PHX) route, United Airlines typically flies Boeing 737 MAX 8 and Boeing 737-800 planes. Don’t forget that last-minute changes are possible for operational reasons, so your flight may be on a different aircraft.

Depending on the ticket type you purchased, a fee may apply if you cancel or change your flight more than 24 hours after it’s confirmed. To find flexible plane tickets, select our “Changes included” or “No cancel fee” filter when searching for flights. For additional information on changing or canceling your reservation, go to “Trips,” select your flight and tick “Manage Booking.”