$120 Cheap Delta flights Boise (BOI) to Great Falls (GTF)

Finding cheap one-way Delta Air Lines flights from BOI to GTF from $120 on Expedia couldn’t be easier — just filter by “Price (lowest to highest).” Or check out our budget-friendly round-trip fares from $240 for your next 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.

Search for round-trip or one-way flights to Great Falls in January or February. You could find a cheap fare with Delta Air Lines during these off-peak times.

Search for affordable Delta Air Lines flights from Boise Airport (BOI) to Great Falls Intl. Airport (GTF) one to three months before your departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare type and journey, the best day to book a domestic flight is usually Sunday and the most expensive day is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**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, press search and check “Nonstop” on Expedia to find any direct flights from BOI to GTF with Delta Air Lines or another airline.

Find Delta Air Lines’s earliest flights from BOI to GTF by using our “Early Morning” and “Morning” filters. Not only will you get to your destination sooner, early departures also experience 20% fewer 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.

Great Falls Intl. Airport (GTF) is the main Great Falls gateway for Delta Air Lines flights from Boise Airport (BOI).

Delta Air Lines makes flying from BOI to GTF more comfortable with an excellent in-flight experience and a rewarding loyalty program. You even have the chance to collect points with Delta SkyMiles. Don’t forget to join Expedia’s free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future travel.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on the ticket type you purchased, a fee is typically charged if you change or cancel your booking more than 24 hours after it’s been confirmed. To find flexible plane tickets, select our “Changes included” and “No cancel fee” boxes when you look for flights. For more information on modifying or canceling your reservation, visit “Trips,” select your flight and click on “Manage Booking.”