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$237 Cheap Flights from Phoenix (PHX) to Great Falls (GTF)

View $237 flight on Tue, Nov 10, 2026Opens in a new window

Popular airlines from Phoenix Sky Harbor Intl. Airport (PHX) to Great Falls, MT (GTF-Great Falls Intl.)

Cheap Flights from Phoenix to Great Falls (PHX-GTF)

Prices were available within the past 7 days and start at $237 for one-way flights and $408 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Aug 26 - Wed, Sep 9
PHX
Phoenix
GTF
Great Falls
$408 Roundtrip, found 5 days ago
$408
Roundtrip
found 5 days ago
Select United flight, departing Wed, Aug 26 from Phoenix to Great Falls, returning Wed, Sep 9, priced at $408 found 5 days ago
United
Mon, Aug 24 - Wed, Sep 9
PHX
Phoenix
GTF
Great Falls
$410 Roundtrip, found 5 days ago
$410
Roundtrip
found 5 days ago
Select United flight, departing Mon, Aug 24 from Phoenix to Great Falls, returning Wed, Sep 9, priced at $410 found 5 days ago
United
Mon, Aug 24 - Fri, Sep 11
PHX
Phoenix
GTF
Great Falls
$412 Roundtrip, found 5 days ago
$412
Roundtrip
found 5 days ago
Select United flight, departing Mon, Aug 24 from Phoenix to Great Falls, returning Fri, Sep 11, priced at $412 found 5 days ago
Alaska Airlines
Wed, Sep 30 - Sat, Oct 17
PHX
Phoenix
GTF
Great Falls
$422 Roundtrip, found 5 days ago
$422
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Sep 30 from Phoenix to Great Falls, returning Sat, Oct 17, priced at $422 found 5 days ago
Alaska Airlines
Wed, Sep 30 - Fri, Oct 16
PHX
Phoenix
GTF
Great Falls
$432 Roundtrip, found 5 days ago
$432
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Sep 30 from Phoenix to Great Falls, returning Fri, Oct 16, priced at $432 found 5 days ago
Alaska Airlines
Fri, Sep 18 - Fri, Sep 25
PHX
Phoenix
GTF
Great Falls
$441 Roundtrip, found 6 days ago
$441
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Fri, Sep 18 from Phoenix to Great Falls, returning Fri, Sep 25, priced at $441 found 6 days ago
Alaska Airlines
Fri, Oct 2 - Sat, Oct 17
PHX
Phoenix
GTF
Great Falls
$442 Roundtrip, found 5 days ago
$442
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri, Oct 2 from Phoenix to Great Falls, returning Sat, Oct 17, priced at $442 found 5 days ago
Alaska Airlines
Fri, Sep 11 - Mon, Sep 14
PHX
Phoenix
GTF
Great Falls
$446 Roundtrip, found 6 days ago
$446
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Fri, Sep 11 from Phoenix to Great Falls, returning Mon, Sep 14, priced at $446 found 6 days ago
Alaska Airlines
Wed, Sep 2 - Wed, Sep 16
PHX
Phoenix
GTF
Great Falls
$448 Roundtrip, found 5 days ago
$448
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Sep 2 from Phoenix to Great Falls, returning Wed, Sep 16, priced at $448 found 5 days ago
Delta
Tue, Sep 15 - Wed, Sep 30
PHX
Phoenix
GTF
Great Falls
$474 Roundtrip, found 23 hours ago
$474
Roundtrip
found 23 hours ago
Select Delta flight, departing Tue, Sep 15 from Phoenix to Great Falls, returning Wed, Sep 30, priced at $474 found 23 hours ago

Alternative airports near Great Falls

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Great Falls Intl. GTF. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $714
GTF
Great Falls Intl.
CheapestClosest
Average driving time to city center8 min
Flights from $714

What you need to know for your flight from Sky Harbor Intl. to Great Falls Intl.

Phoenix (PHX) to Great Falls (GTF) at a glance

Travel between Phoenix (PHX) and Great Falls (GTF) with a range of airlines offering direct routes on this domestic short-haul journey. Explore various options for flights from Phoenix to Great Falls, comparing full-service and budget carriers to find an itinerary that aligns with your travel needs and budget. Discover essential information for flights from Sky Harbor International Airport to Great Falls International Airport as you plan your visit to the scenic sights and vibrant neighborhoods of Great Falls.

  • Fastest (typical) flight duration: around 3h 30m in-flight, plus roughly 1h 30m layover with one stop
  • Route distance: roughly 1,000 miles (1,610 km)
  • Flights per week: around 8 departures on average
  • Typical fares (one-way): economy tickets often range from $135–$520, depending on seasonality and how far ahead you book

Flights from Sky Harbor International Airport (PHX) to Great Falls International Airport (GTF)

According to recent traveler bookings, here are the top airlines favored for flights from Phoenix to Great Falls, primarily offering one-stop services. Common layover points include Salt Lake City International Airport (SLC) with an approximate 1 hour and 30 minute layover, Denver International Airport (DEN) also around 1 hour and 30 minutes, and Seattle-Tacoma International Airport (SEA) with about a 2-hour layover. This allows you to mix and match options for price, total travel time, and cabin class, helping you find the ideal itinerary.

  • Delta: This full-service airline provides one-stop service and typically offers one-way fares between $140 and $525. Delta accounts for about 57% of the departures on this route, with an in-flight duration of 3 hours and 30 minutes, and a total travel time of around 5 hours and 30 minutes, including layover time.
  • United: Another full-service option, United features one-stop service with one-way ticket prices usually ranging from $135 to $680. Representing roughly 28% of departures on this route, United's flights have an in-flight time of 3 hours and 30 minutes, leading to a total journey time of approximately 5 hours and 30 minutes, factoring in the layover.
  • Alaska Airlines: This full-service carrier also provides one-stop service, with one-way fares generally falling between $135 and $365. Alaska Airlines makes up about 14% of the departures on this route, with an in-flight time of 3 hours and 30 minutes and a total travel duration of roughly 5 hours and 30 minutes, including any layover.

Travelers flying from Phoenix to Great Falls have the option to elevate their experience with first-class service offered by both United and Delta.

Best time to fly from Phoenix (PHX) to Great Falls (GTF)

The most popular months for travelers flying from Phoenix to Great Falls are February, April, and May, when peak temperatures in Great Falls reach up to 52.9°F in May. If you prefer quieter travel, consider August, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 70.3°F. For better deals, November usually offers the lowest average one-way fare around $241. Flight availability peaks in December, with approximately 11 flights per week, making it easier to find convenient departure times. June, July, and October have the fewest flights, with approximately 7 flights per week.

  • Cheapest time to fly: November usually offers good deals with average one-way fare around $241, roughly 21% cheaper than the yearly average.
  • More budget-friendly months to fly: August, March, and May typically offer average one-way fares roughly ranging from $246 to $263.
  • Most flight options: December has the highest number of flights from Phoenix to Great Falls, with approximately 11 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January25.0°F (-3.9°C)Average8$368
February23.7°F (-4.6°C)High9$314
March34.5°F (1.4°C)Average8$260
April42.6°F (5.9°C)High8$292
May52.9°F (11.6°C)High8$263
June61.7°F (16.5°C)Low7$317
July71.2°F (21.8°C)Low7$289
August70.3°F (21.3°C)Low10$246
September60.8°F (16.0°C)Average8$313
October45.5°F (7.5°C)Average7$390
November33.6°F (0.9°C)Average9$241
December24.4°F (-4.2°C)Average11$403

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative route from Phoenix (PHX) to Great Falls (GTF)

  • Phoenix to Helena (PHX-HLN): Helena Regional Airport (HLN) is located approximately 67 miles from Great Falls International Airport (GTF). One-way economy ticket prices for this journey generally fall between $140 and $510, influenced by the time of year and how early you make your reservation. Typically, this route is offered with one-stop flights, featuring common layover locations at Salt Lake City International Airport (SLC) and Denver International Airport (DEN). Major airlines servicing this route include Delta and United, and first class is an option on this route as well.

How to find the best prices for flights from Phoenix (PHX) to Great Falls (GTF)

Getting some of the best deals on flights from Phoenix to Great Falls is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are generally available when booking 2-8 weeks in advance, which coincides with when most travelers make their reservations. Evening departures from 6 pm to midnight often have lower prices, although morning flights from 5 am to noon are more popular. Additionally, flying on Tuesday typically results in cheaper fares, while Monday is the busiest travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.* Find Great Falls hotel and flight deals.
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Great Falls International Airport from Sky Harbor International Airport

Great Falls welcomes travelers from Phoenix with a range of transport options based on price, convenience, and proximity. Here's how to reach Great Falls efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Great Falls, with options including free hotel shuttles and private rides, which can be arranged in advance with your hotel.
  • Car rental: Renting a car from Great Falls International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Great Falls International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.

Frequently asked questions

How much does a flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Great Falls, MT (GTF-Great Falls Intl.) cost?
You can find cheap one-way flights from $237 and cheap return flights from $408 Phoenix, AZ (PHX-Sky Harbor Intl.) to Great Falls, MT (GTF-Great Falls Intl.) with Expedia. One-way flights typically cost between $178 and $838, and return flights often range between $412 and $1667. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Phoenix, AZ (PHX-Sky Harbor Intl.) to Great Falls, MT (GTF-Great Falls Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Phoenix, AZ (PHX-Sky Harbor Intl.) to Great Falls, MT (GTF-Great Falls Intl.)?
The cheapest month to fly from PHX to GTF is August when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Phoenix, AZ (PHX-Sky Harbor Intl.) to Great Falls, MT (GTF-Great Falls Intl.)?
Enter PHX to GTF and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Phoenix, AZ (PHX-Sky Harbor Intl.) to Great Falls, MT (GTF-Great Falls Intl.)?
Alaska Airlines is one of the cheapest airlines offering connecting flights from Phoenix, AZ (PHX) to Great Falls, MT (GTF) with round-trip tickets starting from around $300 with a layover in San Diego Intl. (SAN). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Great Falls, MT (GTF-Great Falls Intl.)?
To find a cheap flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Great Falls, MT (GTF-Great Falls Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Phoenix, AZ (PHX-Sky Harbor Intl.) to Great Falls, MT (GTF-Great Falls Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Great Falls, MT (GTF-Great Falls Intl.)?
The earliest flight from Sky Harbor Intl. (PHX) to Great Falls Intl. (GTF) typically departs at around 5:00 AM, operated by United and Delta Airlines. This seasonal service is active in April, allowing you to make the most of your day in Great Falls. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Great Falls, MT (GTF-Great Falls Intl.)?
The most popular departure times for flights from Phoenix (PHX) to Great Falls (GTF) are from 6am to 9am. About 43% of passengers prefer this time window. United Airlines, Delta Airlines, and others offer flights during this period. Many travelers like this timing as it allows them to arrive in Great Falls with a full day ahead of them.
How long does it take to fly from Phoenix, AZ (PHX-Sky Harbor Intl.) to Great Falls, MT (GTF-Great Falls Intl.)?
A flight from PHX to GTF with a layover takes around 6 hours 30 minutes, with the route covering approximately 971 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Phoenix, AZ (PHX-Sky Harbor Intl.) to Great Falls, MT (GTF-Great Falls Intl.)?
First class seats are offered on the PHX to GTF route with Delta Air Lines and United Airlines.
How do I earn miles on a Phoenix, AZ (PHX-Sky Harbor Intl.) to Great Falls, MT (GTF-Great Falls Intl.) flight with Expedia?
It's easy to earn miles on a Phoenix, AZ (PHX-Sky Harbor Intl.) to Great Falls, MT (GTF-Great Falls Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Great Falls from Sky Harbor Intl. (PHX)?
From Sky Harbor Intl. (PHX), you can fly into Great Falls Intl. (GTF) to reach Great Falls. Some flights may connect through major hubs like Los Angeles Intl. (LAX), San Francisco Intl. (SFO), Seattle - Tacoma Intl. (SEA) before reaching Great Falls. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Phoenix, AZ (PHX-Sky Harbor Intl.) to Great Falls, MT (GTF-Great Falls Intl.) at the last minute?
Typically, booking a last minute flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Great Falls, MT (GTF-Great Falls Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Phoenix, AZ (PHX-Sky Harbor Intl.) to Great Falls, MT (GTF-Great Falls Intl.) flight and hotel package?
Securing a Phoenix, AZ (PHX-Sky Harbor Intl.) to Great Falls, MT (GTF-Great Falls Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Great Falls, MT (GTF-Great Falls Intl.)?
If you booked your Phoenix, AZ (PHX-Sky Harbor Intl.) to Great Falls, MT (GTF-Great Falls Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Sky Harbor Intl.
Destination airport
Great Falls Intl.
Airlines serving
Alaska Airlines, Delta, United
Roundtrip price
$408
Distance
971 mi

Book with confidence

Phoenix to Great Falls Flights

The cheapest times to fly from Phoenix to Great Falls

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Phoenix to Great Falls are during the month of August. You can find some of the cheapest flights from Phoenix to Great Falls with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Phoenix to Great Falls

Sunday is one of the best days to book for cheap flights from Phoenix to Great Falls: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Phoenix to Great Falls

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Phoenix to Great Falls in 2026. You can also book with separate airlines for your outbound and return journeys, from $237 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Phoenix to Great Falls flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Phoenix to Great Falls airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Phoenix to Great Falls Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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