$139 Cheap United flights Des Moines (DSM) to Phoenix (PHX)

Make use of the “Price (lowest to highest)” filter on Expedia to find cheap United Airlines return flights from $240 from DSM to PHX. Affordable one-way fares from $139 are available too.**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.

United Airlines flights to Phoenix are typically cheaper in the quieter months of July and August. Whether you’re in search of a one-way or a return ticket, you could score a better deal then.

To find cheap United Airlines fares from Des Moines Intl. Airport (DSM) to Sky Harbor Intl. Airport (PHX), start searching one to three months before your intended departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also influence the cost. Sunday is usually the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your trip on a Sunday.**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.

Enter your dates, hit search and use the “Nonstop” filter on Expedia to find any direct flights from DSM to PHX with United Airlines or another airline.

Find United Airlines’s earliest flights from DSM to PHX by using our “Early Morning” and “Morning” filters. Not only will you get to your destination sooner, early departures are also 20% less likely to be canceled.**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.

Sky Harbor Intl. Airport (PHX) is the main Phoenix hub for United Airlines flights from Des Moines Intl. Airport (DSM).

Fly from DSM to PHX with United Airlines and look forward to a range of benefits including a rewarding loyalty program. When booking through Expedia as a United Mileage Plus and One Key™ member, you may also earn OneKeyCash™* to redeem on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on the type of ticket you purchased, a fee will generally apply if you cancel or change your flight more than 24 hours after it’s confirmed. To secure plane tickets with more flexibility, select our “No cancel fee” or “Changes included” filter when you look for flights. For more information on modifying or canceling your reservation, visit “Trips,” select your flight and tick “Manage Booking.”