C$61 Cheap Flights from Great Falls International (GTF) to Phoenix (PHXA)

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Flight deals from Great Falls International to Phoenix

Looking for a cheap last-minute deal or the best return flight from Great Falls International Airport to Phoenix? If you want to travel next month, return fares start from C$123. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Great Falls International to Phoenix

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Great Falls International to Phoenix flights are currently cheapest in July.

Which airlines fly from Great Falls International to Phoenix?

Alternative Great Falls International to Phoenix routes

Looking for the cheapest, fastest or easiest route from Great Falls International to Phoenix? You could fly into the following airports instead.

Great Falls to Phoenix: Flight information

The things to know before you go.
Cheapest flight foundC$61
Cheapest month to flyJuly
Average flight time2 hrs, 35 mins
Most popular airlineAllegiant Air
Average flights per week3

Finding cheap flights from Great Falls International to Phoenix: Frequently asked questions

There are 4 airports in Phoenix: Phoenix Sky Harbor, Phoenix Scottsdale Municipal, Phoenix-Deer Valley, and Phoenix-Mesa Gateway.
The best price we found for a return flight from Great Falls International to Phoenix is C$123. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 35 minutes is the average flight time from Great Falls International to Phoenix.
Allegiant Air flies direct from Great Falls International to Phoenix.
As of June 2026, there are 3 flights per week flying from Great Falls International to Phoenix.
The cheapest month to fly from Great Falls International to Phoenix is usually July.
If you're flying from Great Falls International Airport, the cheapest airport near Phoenix is Phoenix-Mesa Gateway – which is 41.9 km away from the centre of Phoenix. We've found flights into this airport from C$123.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Great Falls International Airport to Phoenix on Thursday, July 16, 2026.
Yes – the average flight time is 2 hours and 35 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Phoenix but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Phoenix is around 40 days in advance, so don’t leave your flight to the last minute.
In June, the average temperature is usually around 30°C. July is typically the warmest month in Phoenix, when it usually averages around 40°C. You can expect the least rain in June. The coldest month is December, with temperatures averaging 4°C. The rainiest month is August.
Currently, Allegiant Air offers the cheapest flight tickets to Phoenix.

Flying from Great Falls International Airport (GTF) to Phoenix: what you need to know

  • The timezone in Phoenix is UTC-7. The city is 1 hour behind Great Falls, where Great Falls International Airport is located.

  • Give yourself enough time to catch your flight from GTF to Phoenix. Generally, it's best to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • If you're flying during a popular month like October, arrive at the terminal even earlier. It's wise to arrive up to four hours before international flights and two hours ahead of a domestic departure. Security lines will be longer during vacation periods like summer, Christmas and New Year.

  • You can book a direct flight from Great Falls International Airport to Phoenix. Start your trip at GTF and arrive at Phoenix-Mesa Gateway Airport (AZA).

  • Book your ticket with Allegiant Air. This leading carrier operates direct flights from Great Falls International Airport to Phoenix.

  • When flying within United States, you don't need a visa or passport. However, you'll have to present another kind of identification, such as an ID card or driver's licence. Once you've booked flight tickets from Great Falls International Airport to Phoenix, make sure your ID is up to date.

  • GTF is about 8 kilometres from central Great Falls. If you're ride-sharing, catching a cab or driving from the centre, it'll take 12 minutes or so to get there, depending on traffic conditions. If you're using public transport, expect the travel time to be approximately 3 hours and 59 minutes.

  • Want a handy hotel near GTF? If you're boarding an early flight from Great Falls International Airport to Phoenix, these stays will put you moments from check-in:

How to find the cheapest flights from Great Falls International Airport (GTF) to Phoenix

  • The best price we've seen for a one-way ticket from Great Falls International Airport to Phoenix is C$61. The cheapest price for a return flight is C$123. Keep in mind fares can change due to demand at the time of booking.

  • To get your hands on cheap tickets from GTF to Phoenix, book as early as you can. Airlines usually offer the most competitive fares when flights are first released.

  • The 'Whole month' tool shows you the cheapest tickets from Great Falls International Airport to Phoenix across the month. It's the best way to find a bargain if your travel dates aren't set in stone.

  • Sign into your online account or use the app to create a Price Alert. We'll get in touch straight away if there's a cheaper deal on this route. It's simple to do, and it'll save you from checking for cheap tickets from GTF to Phoenix every day.

  • Tailor your flights with filters. Choose your ideal departure and arrival times, total journey duration and airlines. You can also sort results by 'Best,' 'Fastest' or 'Cheapest' flights from Great Falls International Airport to Phoenix.

Airports in Phoenix

Phoenix Scottsdale Municipal Airport (SCF)

Phoenix Sky Harbour International Airport (PHX)

Best time to go to Phoenix

  • Plan your trip to Phoenix during high season if you prefer a bustling atmosphere, but remember that hotel prices may be higher. Or, book flights from Great Falls International Airport to Phoenix during the off-season when prices are cheaper and it's not as busy.

  • Book your flight from Great Falls International Airport to Phoenix for July to visit the city during its warmest month. You can expect temperatures to range from 26ºC to 44ºC.

  • January has average temperatures of between 4ºC and 20ºC. Search for cheap flights from GTF to Phoenix around that time if you want to travel in cooler conditions.

More about Phoenix

  • Start your Phoenix trip off on the right foot by choosing the ideal place to stay. Once you've booked your flight from Great Falls International Airport to Phoenix, check out our selection of hotels including:

  • There are so many things to do and see in this city it can be difficult to know where to start. Desert Botanical Garden, Heard Museum and Papago Park are top attractions which should feature on every Phoenix itinerary.

Complete your Phoenix trip with a car rental

  • Finding you a cheap flight from Great Falls International Airport to Phoenix isn't our only cool trick. Check out our car rentals in Phoenix and see the sights your way. We search for deals from trusted car rental companies and put them all in one place. Instantly compare rates and then book with no fees.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.