$109 Cheap United flights Phoenix (PHX) to Portland (PDX)

Apply the “Price (lowest to highest)” filter on Expedia to look for cheap United Airlines round-trip flights from $217 from PHX to PDX. Affordable one-way fares from $109 are also available.**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.

Browse for one-way or round-trip flights to Portland in January or December. You could find a cheap fare with United Airlines during these off-season months.

To find cheap United Airlines fares from Sky Harbor Intl. Airport (PHX) to Portland Intl. Airport (PDX), start searching one to three months before your planned 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 impact the overall cost. Sunday tends to be the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your journey 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.

Click on our “Nonstop” filter when searching for direct United Airlines flights from PHX to PDX. It’s also a good way to compare other carriers offering the same direct trip.

Filter your results by “Early Morning” and “Morning” to browse the earliest departures from PHX to PDX. Heading off early means you’re less likely to experience cancellations.**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.

Take a United Airlines flight from Sky Harbor Intl. Airport (PHX) to Portland, and you’ll most likely land at Portland Intl. Airport (PDX). This is the airline’s primary hub here.

Offering a rewarding loyalty program, United Airlines is a favorite of many travelers heading from PHX to PDX. Plus, as a United Mileage Plus and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights along with your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

In most cases, you can cancel or reschedule your flight, although there may be a charge if you booked more than 24 hours ago. Want to keep your options open? Make use of our “No cancel fee” and “Changes included” filters to find flights that won’t charge you extra if you have to revise your plans. To update your itinerary, go to “Trips,” select your flight and click on “Manage Booking” for more details.