$226 Cheap United flights from Phoenix to Great Falls (PHX to GTF)

Find The Best Day To Fly from Phoenix to Great Falls

Amazing United PHX to GTF Flight Deals

The cheapest flights to Great Falls Intl. found within the past 7 days were $412 round trip and $226 one way. Prices and availability subject to change. Additional terms may apply.

Mon, Sep 1 - Sat, Sep 6
PHX
Phoenix
GTF
Great Falls
$412 Roundtrip, found 3 days ago
$412
Roundtrip
found 3 days ago
Select United flight, departing Mon, Sep 1 from Phoenix to Great Falls, returning Sat, Sep 6, priced at $412 found 3 days ago

Frequently asked questions

Can I catch a flight from Phoenix Sky Harbor Intl. Airport to Great Falls Intl. Airport right now?
For info on any present Great Falls Intl. Airport (GTF) quarantine requirements and travel advice, visit the Covid-19 Travel Advisor. Look before you book your flight, so you don’t get caught out.
What terminal is United Airlines at Phoenix Sky Harbor Airport?
Your ticket usually tells you exactly which terminal your United Airlines flight will be taking off from at Phoenix Sky Harbor Intl. Airport. It might also be able to provide you with the arrival details for Great Falls Intl. Airport. If not, it’s probably a wise idea to consult your airline before you fly.
Are there United Airlines non-stop flights from PHX to GTF?
You won’t find any direct flights with United Airlines from Sky Harbor Intl. Airport (PHX) to Great Falls Intl. Airport. You will have at least one stopover, so use this time to go for a stroll and stretch out those legs before jumping on your connecting flight.
How long is a United Airlines flight from PHX to GTF?
Air traffic and weather permitting, your United Airlines flight from Phoenix Sky Harbor Airport to GTF will take on average 4 hours and 3 minutes. That means you’ve got time to enjoy a drink or two, squeeze in a nap and look at your itinerary before landing.
How many direct and indirect flights does United Airlines fly from PHX to GTF?
United Airlines currently offers approximately 2 flights daily from Phoenix Sky Harbor Intl. Airport to Great Falls Intl. Airport (GTF).
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to Great Falls Intl. Airport (GTF), please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Discover our best United flight from Phoenix PHX to Great Falls GTF 

To find the best deals on flights to Phoenix from Great Falls with United, just enter your travel dates, filter by United, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from Phoenix PHX to Great Falls GTF with United 

If you’re planning a round trip, booking return flights with United is usually the most cost-effective option. With airfares ranging from $412 to $412, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way United flights from Phoenix PHX to Great Falls GTF 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way United flight from Phoenix to Great Falls costs from $226. Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Great Falls GTF from  Phoenix PHX with United 

To find a cheap United flight from Phoenix PHX to Great Falls GTF, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on United flights from Phoenix PHX to Great Falls GTF 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as September, or if you book a flight with a stopover. 

 

Find nonstop flights from Phoenix PHX to Great Falls GTF with United 

If you’re keen to be on Great Falls soil fast, don’t waste time with a stopover—filter your search results to show direct United flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for United flights from Phoenix PHX to Great Falls GTF 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Great Falls GTF from  Phoenix PHX with United on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

Travelers ❤️ these 🏨 after their flight to Great Falls

Crystal Inn Hotel & Suites Great Falls
Crystal Inn Hotel & Suites Great Falls
2.5 out of 5
3701 31st St SW, Great Falls, MT
This hotel features an indoor pool and a gym. Traveling on business? Take advantage of the 24-hour business center, free WiFi in public areas, and free airport ...
9/10 Wonderful! (1,002 reviews)
"Cool place"

Reviewed on May 7, 2025

Crystal Inn Hotel & Suites Great Falls
Holiday Inn Express Hotel & Suites Great Falls by IHG
Holiday Inn Express Hotel & Suites Great Falls by IHG
2.5 out of 5
1625 Market Place Dr, Great Falls, MT
This hotel features an indoor pool and a 24-hour gym. Traveling on business? Take advantage of the business center and free WiFi in public areas. Enjoy the hot ...
7.8/10 Good! (336 reviews)
"👍"

Reviewed on Apr 26, 2025

Holiday Inn Express Hotel & Suites Great Falls by IHG
Heritage Inn
Heritage Inn
2.5 out of 5
1700 Fox Farm Road, Great Falls, MT
This smoke-free hotel features a casino, a nightclub, and a restaurant. Traveling on business? Take advantage of the business center, free WiFi in public areas, ...
8/10 Very Good! (1,433 reviews)
"Great spot and close to anything you need!"

Reviewed on May 8, 2025

Heritage Inn
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.