$158 Cheap Delta flights Phoenix (PHX) to Great Falls (GTF)

You’ll discover cheap round-trip Delta Air Lines flights from $315 from PHX to GTF by sorting your results from “Price (lowest to highest)” on Expedia. Or look for bargains from $158 for a one-way trip.**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.

January is one of the most affordable months to jet away to Great Falls with Delta Air Lines. You could also find great deals on return and one-way fares in February.

Start searching one to three months before your departure to score cheaper fares on Delta Air Lines flights from Sky Harbor Intl. Airport (PHX) to Great Falls Intl. Airport (GTF). 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.* Get the timing right, and you can enjoy significant savings on domestic trips.*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.

Select our “Nonstop” filter when looking for direct Delta Air Lines flights from PHX to GTF. It’s also a great way to compare other carriers offering the same direct trip.

Browse Delta Air Lines’s earliest flights from PHX to GTF by using the “Morning” and “Early Morning” filters. Not only will you get to where you’re going sooner, early departures also have a 20% less chance of being 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.

Great Falls Intl. Airport (GTF) is the main Great Falls gateway for Delta Air Lines flights from Sky Harbor Intl. Airport (PHX).

Taking off from PHX to GTF with Delta Air Lines means enjoying a range of perks, including an excellent in-flight experience and a rewarding loyalty program. Plus, when you book through Expedia, One Key™ members can earn OneKeyCash™* to redeem on select future travel purchases. That’s in addition to the Delta SkyMiles points you can earn with Delta Air Lines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are typically free within 24 hours of making your booking, but your airline may charge you after that. For more information about altering your reservation, check out your “Trips,” select your flight and click on “Manage Booking.” If you’d like the freedom to change your itinerary without additional costs, check the “Changes included” or “No cancel fee” filter when planning your next adventure.