Cheap Alaska Airlines flights Missoula (MSO) to Phoenix (PHX)

Apply the “Price (lowest to highest)” filter on Expedia to find cheap Alaska Airlines round-trip flights from MSO to PHX. Affordable one-way tickets are also on offer.**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 round-trip or one-way flights to Phoenix in July or August. You could find lower fares with Alaska Airlines during these off-peak months.

To find cheap Alaska Airlines fares from Missoula Intl. Airport (MSO) to Sky Harbor Intl. Airport (PHX), 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 affect the overall price. Sunday is generally the most affordable, 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.

Simply enter your dates, click search and tick the “Nonstop” filter on Expedia to find any direct flights from MSO to PHX with Alaska Airlines or another airline.

To find the earliest departure from MSO to PHX with Alaska Airlines, sort your results by “Early Morning” and “Morning.” Booking an early flight usually 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.

Sky Harbor Intl. Airport (PHX) is the primary Phoenix gateway for Alaska Airlines flights from Missoula Intl. Airport (MSO).

Offering top-tier customer service and an excellent in-flight experience, Alaska Airlines is a favorite for many passengers flying from MSO to PHX. Also, if you’re a Mileage Plan and One Key™ member booking with Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be put toward future travel.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are often free within 24 hours of making your booking, but your airline may charge you after that. For further information about altering your flights, check out your “Trips,” select your flight and click on “Manage Booking.” If you want the freedom to update your itinerary without extra charges, check the “Changes included” and “No cancel fee” filters when organizing your next trip.