What is the cheapest airline that flies from Great Falls to Phoenix?

Allegiant Air, United Airlines, and Delta are the most popular carriers operating from Great Falls to Phoenix

How many flights depart from Great Falls to Phoenix on average per week?

As of November 2026, 2 flights take off from Great Falls and land in Phoenix each week. The most common flight departure day for this route is Thu, with 50% of weekly flights taking off on this day.

What airlines fly to Phoenix?

Allegiant Air, United Airlines and Delta are the top three most popular airlines that fly to Phoenix from Great Falls according to our data. Allegiant Air is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Phoenix. Keep in mind that there are 3 different airlines that fly to Phoenix on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Great Falls Airport to Phoenix?

Prices for flights from Great Falls Airport to Phoenix refresh daily.

How many operators does momondo search for flights from Great Falls Airport to Phoenix?

There are 3 operators available for flights from Great Falls Airport to Phoenix as of November 2026.

How old do you have to be to fly from Great Falls Airport to Phoenix?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Great Falls Airport to Phoenix.

What documentation or ID do you need to fly to Phoenix?

The travel and health documents you'll need for your trip to Phoenix may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Phoenix. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$109 Cheap Flights from Great Falls to Phoenix in 2026/27

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6:27 pm - 9:03 pmGTF Great Falls-AZA Phoenix-Mesa Gateway

2h 36mnonstop

2:50 pm - 5:37 pmAZA Phoenix-Mesa Gateway-GTF Great Falls

2h 47mnonstop

$109Allegiant Air

Thu, Jan 21 - Thu, Jan 28

6:27 pm - 9:03 pmGTF Great Falls-AZA Phoenix-Mesa Gateway

2h 36mnonstop

2:50 pm - 5:37 pmAZA Phoenix-Mesa Gateway-GTF Great Falls

2h 47mnonstop

$114Allegiant Air

Thu, Jan 21 - Thu, Jan 28

6:27 pm - 9:03 pmGTF Great Falls-AZA Phoenix-Mesa Gateway

2h 36mnonstop

2:50 pm - 5:37 pmAZA Phoenix-Mesa Gateway-GTF Great Falls

2h 47mnonstop

$118Allegiant Air

Thu, Jan 21 - Thu, Jan 28

2:32 pm - 9:24 pmGTF Great Falls-PHX Phoenix Sky Harbor Intl

6h 52m1 stop Denver Intl

4:38 pm - 9:42 pmPHX Phoenix Sky Harbor Intl-GTF Great Falls

5h 04m1 stop Denver Intl

$408United Airlines

Wed, Jan 27 - Wed, Feb 3

2:32 pm - 7:54 pmGTF Great Falls-PHX Phoenix Sky Harbor Intl

5h 22m1 stop Denver Intl

8:16 am - 1:36 pmPHX Phoenix Sky Harbor Intl-GTF Great Falls

5h 20m1 stop Denver Intl

$408United Airlines

Sat, Jan 23 - Wed, Jan 27

6:30 am - 11:39 amGTF Great Falls-PHX Phoenix Sky Harbor Intl

5h 09m1 stop Denver Intl

6:20 am - 1:49 pmPHX Phoenix Sky Harbor Intl-GTF Great Falls

7h 29m1 stop Denver Intl

$410United Airlines

Wed, Dec 9 - Sun, Dec 13

4:08 pm - 10:20 pmGTF Great Falls-PHX Phoenix Sky Harbor Intl

6h 12m1 stop Seattle/Tacoma Intl

7:00 am - 3:28 pmPHX Phoenix Sky Harbor Intl-GTF Great Falls

8h 28m1 stop Seattle/Tacoma Intl

$439Alaska Airlines

Fri, Feb 5 - Mon, Feb 8

4:08 pm - 10:20 pmGTF Great Falls-PHX Phoenix Sky Harbor Intl

6h 12m1 stop Seattle/Tacoma Intl

8:20 am - 3:28 pmPHX Phoenix Sky Harbor Intl-GTF Great Falls

7h 08m1 stop Seattle/Tacoma Intl

$439Alaska Airlines

Wed, Jan 13 - Wed, Jan 20

6:19 pm - 12:51 amGTF Great Falls-PHX Phoenix Sky Harbor Intl

6h 32m1 stop Salt Lake City

5:40 pm - 10:28 pmPHX Phoenix Sky Harbor Intl-GTF Great Falls

4h 48m1 stop Salt Lake City

$524Delta

Tue, Dec 22 - Tue, Dec 29

6:20 pm - 11:42 pmGTF Great Falls-PHX Phoenix Sky Harbor Intl

6h 22m1 stop Salt Lake City

5:20 pm - 10:53 pmPHX Phoenix Sky Harbor Intl-GTF Great Falls

4h 33m1 stop Salt Lake City

$525Delta

Wed, Apr 7 - Mon, Apr 12

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Alaska Airlines flights from Great Falls to Phoenix

Our best Alaska Airlines deals on Great Falls to Phoenix flight tickets

Alaska Airlines

Jan 13

GTF4:08 pmGreat Falls

6h 12m

1 stop

PHX10:20 pmPhoenix Sky Harbor Intl

Jan 20

PHX8:20 amPhoenix Sky Harbor Intl

7h 08m

1 stop

GTF3:28 pmGreat Falls

$439

Alaska Airlines

Feb 5

GTF4:08 pmGreat Falls

24h 16m

2 stops

PHX4:24 pmPhoenix Sky Harbor Intl

Feb 8

PHX12:20 pmPhoenix Sky Harbor Intl

27h 08m

2 stops

GTF3:28 pmGreat Falls

$444

Alaska Airlines

Dec 11

GTF4:51 pmGreat Falls

25h 48m

2 stops

PHX6:39 pmPhoenix Sky Harbor Intl

Dec 16

PHX7:00 amPhoenix Sky Harbor Intl

9h 11m

1 stop

GTF4:11 pmGreat Falls

$446

United Airlines flights from Great Falls to Phoenix

Our best United Airlines deals on Great Falls to Phoenix flight tickets

United Airlines

Jan 23

GTF2:32 pmGreat Falls

5h 22m

1 stop

PHX7:54 pmPhoenix Sky Harbor Intl

Jan 27

PHX8:16 amPhoenix Sky Harbor Intl

5h 20m

1 stop

GTF1:36 pmGreat Falls

$408

United Airlines

Dec 9

GTF6:30 amGreat Falls

5h 09m

1 stop

PHX11:39 amPhoenix Sky Harbor Intl

Dec 13

PHX6:20 amPhoenix Sky Harbor Intl

7h 29m

1 stop

GTF1:49 pmGreat Falls

$410

United Airlines

Jan 21

GTF6:25 amGreat Falls

5h 17m

1 stop

PHX11:42 amPhoenix Sky Harbor Intl

Jan 28

PHX2:50 pmPhoenix Sky Harbor Intl

6h 52m

1 stop

GTF9:42 pmGreat Falls

$412

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Great FallsPhoenix

GTF Great Falls - AZA Phoenix-Mesa Gateway

GTFAZA

Great Falls

Thu 1/21

6:27 pm-9:03 pm

Nonstop2h 36m

Phoenix-Mesa Gateway

Thu 1/28

2:50 pm-5:37 pm

Nonstop2h 47m

$109

Great FallsPhoenix

GTF Great Falls - AZA Phoenix-Mesa Gateway

GTFAZA

Great Falls

Thu 1/21

6:27 pm-9:03 pm

Nonstop2h 36m

Phoenix-Mesa Gateway

Thu 1/28

2:50 pm-5:37 pm

Nonstop2h 47m

$114

Great FallsPhoenix

GTF Great Falls - AZA Phoenix-Mesa Gateway

GTFAZA

Great Falls

Thu 1/21

6:27 pm-9:03 pm

Nonstop2h 36m

Phoenix-Mesa Gateway

Thu 1/28

2:50 pm-5:37 pm

Nonstop2h 47m

$118

Great FallsPhoenix

GTF Great Falls - PHX Phoenix Sky Harbor Intl

GTFPHX

Great Falls

Wed 1/27

2:32 pm-9:24 pm

1 stop6h 52m

Phoenix Sky Harbor Intl

Wed 2/3

4:38 pm-9:42 pm

1 stop5h 04m

$408

Great FallsPhoenix

GTF Great Falls - PHX Phoenix Sky Harbor Intl

GTFPHX

Great Falls

Sat 1/23

2:32 pm-7:54 pm

1 stop5h 22m

Phoenix Sky Harbor Intl

Wed 1/27

8:16 am-1:36 pm

1 stop5h 20m

$408

Great FallsPhoenix

GTF Great Falls - PHX Phoenix Sky Harbor Intl

GTFPHX

Great Falls

Wed 12/9

6:30 am-11:39 am

1 stop5h 09m

Phoenix Sky Harbor Intl

Sun 12/13

6:20 am-1:49 pm

1 stop7h 29m

$410

Great FallsPhoenix

GTF Great Falls - PHX Phoenix Sky Harbor Intl

GTFPHX

Great Falls

Fri 2/5

4:08 pm-10:20 pm

1 stop6h 12m

Phoenix Sky Harbor Intl

Mon 2/8

7:00 am-3:28 pm

1 stop8h 28m

$439

Great FallsPhoenix

GTF Great Falls - PHX Phoenix Sky Harbor Intl

GTFPHX

Great Falls

Wed 1/13

4:08 pm-10:20 pm

1 stop6h 12m

Phoenix Sky Harbor Intl

Wed 1/20

8:20 am-3:28 pm

1 stop7h 08m

$439

Great FallsPhoenix

GTF Great Falls - PHX Phoenix Sky Harbor Intl

GTFPHX

Great Falls

Tue 12/22

6:19 pm-12:51 am

1 stop6h 32m

Phoenix Sky Harbor Intl

Tue 12/29

5:40 pm-10:28 pm

1 stop4h 48m

$524

Great FallsPhoenix

GTF Great Falls - PHX Phoenix Sky Harbor Intl

GTFPHX

Great Falls

Wed 4/7

6:20 pm-11:42 pm

1 stop6h 22m

Phoenix Sky Harbor Intl

Mon 4/12

5:20 pm-10:53 pm

1 stop4h 33m

$525

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Great Falls to Phoenix

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Phoenix?

If you are unable to visit Phoenix during the month of July, then departing from Great Falls during the month October is also very affordable. Most momondo users find prices during this month for around $130.

What is the cheapest time of day to depart on your flight to Phoenix?

The cheapest time of day to fly to Phoenix is in the evening when flights can be purchased for as low as $119. In the morning is when there is more demand to fly to Phoenix, so prices are often more expensive at around $148 per ticket.

What is the cheapest Great Falls to Phoenix flight route?

Fly from Great Falls to Phoenix-Mesa Gateway for the best Great Falls - Phoenix flight prices

What cabin class options are available on Great Falls to Phoenix flights?

There is only 1 cabin class available to choose from on Great Falls to Phoenix flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Great Falls to Phoenix flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Great Falls to Phoenix

Best Price Found	$124
Fastest flight time	5h 21m
Direct flights	Mon, Wed, Fri and Sun
Airports in Phoenix	3 airports

The best one-way flight to Phoenix from Great Falls in the past 72 hours is $124. The best round-trip flight deal from Great Falls to Phoenix found on momondo in the last 72 hours is $109.

The fastest flight from Great Falls to Phoenix takes 5h 21m

Direct flights go from Great Falls to Phoenix on Monday, Wednesday, Friday and Sunday. There are no airlines offering direct flights.

There are 3 airports in Phoenix. From Great Falls there are direct flights to Phoenix-Mesa Gateway (AZA).

Search flight deals

Frequently asked questions about flying from Great Falls to Phoenix

How far is Great Falls to Phoenix by plane?
A flight from Great Falls to Phoenix will travel around 971.0 mi. Flights usually cover this in 5h 21m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Great Falls Airport to Phoenix?
Prices for flights from Great Falls Airport to Phoenix refresh daily.
How many operators does momondo search for flights from Great Falls Airport to Phoenix?
There are 3 operators available for flights from Great Falls Airport to Phoenix as of November 2026.
How old do you have to be to fly from Great Falls Airport to Phoenix?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Great Falls Airport to Phoenix.
What documentation or ID do you need to fly to Phoenix?
The travel and health documents you'll need for your trip to Phoenix may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Phoenix. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Great Falls to Phoenix

Compare and see reviews for airlines that fly from Great Falls to Phoenix with momondo

Airline	Rating	Free Cancellation	Price
Allegiant Air	PriceFrom $88	Free Cancellation	Rating 7.3 676 reviews	Search Allegiant Air flights
United Airlines	PriceFrom $204	Free Cancellation	Rating 7.3 10,472 reviews	Search United Airlines flights
Delta	PriceFrom $310	Free Cancellation	Rating 7.8 8,699 reviews	Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from Great Falls to Phoenix?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Great Falls to Phoenix for you.

Can I find flights from Great Falls to Phoenix with flexible booking policies on momondo?

Yes. All flights to Phoenix from Great Falls on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Great Falls to Phoenix?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Great Falls to Phoenix.

I’m not ready to book a flight from Great Falls to Phoenix right now. Can momondo alert me if prices change?

Price alerts on flights to Phoenix from Great Falls are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Cheap flights from Great Falls to Phoenix from $109

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Great Falls to Phoenix departing on 1/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Alaska Airlines flights from Great Falls to Phoenix

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How to get the cheapest flight ticket from Great Falls to Phoenix

What is the cheapest month to fly to Phoenix?

What is the cheapest time of day to depart on your flight to Phoenix?

What is the cheapest Great Falls to Phoenix flight route?

What cabin class options are available on Great Falls to Phoenix flights?

What is the cheapest airline that flies from Great Falls to Phoenix?

What airlines fly to Phoenix?

How many flights depart from Great Falls to Phoenix on average per week?

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Frequently asked questions about flying from Great Falls to Phoenix

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Why use momondo?

An easier way to manage your Phoenix trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

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Airports listed have a maximum distance of 25.4 mi from Phoenix

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