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

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

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

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

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

The number of operators available for flights from Phoenix to Great Falls Airport is 1 as of August 2026.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Phoenix to Great Falls Airport.

What documentation or ID do you need to fly to Great Falls Airport?

The travel and health documents you'll need for your trip to Great Falls Airport 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 Great Falls Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$206 Cheap Flights from Phoenix to Great Falls in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Phoenix to Great Falls

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:10 am - 1:49 pmPHX Phoenix Sky Harbor Intl-GTF Great Falls

5h 39m1 stop Denver Intl

2:45 pm - 7:55 pmGTF Great Falls-PHX Phoenix Sky Harbor Intl

5h 10m1 stop Denver Intl

$408United Airlines

Sat, Oct 31 - Tue, Nov 3

3:31 pm - 9:38 pmPHX Phoenix Sky Harbor Intl-GTF Great Falls

5h 07m1 stop Denver Intl

6:30 am - 1:37 pmGTF Great Falls-PHX Phoenix Sky Harbor Intl

7h 07m1 stop Denver Intl

$408United Airlines

Sat, Oct 31 - Tue, Nov 3

7:03 pm - 4:35 pmPHX Phoenix Sky Harbor Intl-GTF Great Falls

20h 32m1 stop Seattle/Tacoma Intl

5:15 pm - 6:00 pmGTF Great Falls-PHX Phoenix Sky Harbor Intl

25h 45m1 stop Seattle/Tacoma Intl

$410Alaska Airlines

Thu, Oct 22 - Sun, Oct 25

4:29 pm - 9:41 pmPHX Phoenix Sky Harbor Intl-GTF Great Falls

5h 12m1 stop Denver Intl

6:20 am - 11:43 amGTF Great Falls-PHX Phoenix Sky Harbor Intl

5h 23m1 stop Denver Intl

$412United Airlines

Thu, Dec 24 - Fri, Dec 25

10:20 am - 9:38 pmPHX Phoenix Sky Harbor Intl-GTF Great Falls

10h 18m2 stops San Francisco Denver Intl

2:45 pm - 9:37 pmGTF Great Falls-PHX Phoenix Sky Harbor Intl

6h 52m1 stop Denver Intl

$414United Airlines

Sat, Oct 31 - Tue, Nov 3

6:20 pm - 10:53 pmPHX Phoenix Sky Harbor Intl-GTF Great Falls

4h 33m1 stop Salt Lake City

6:20 pm - 12:42 amGTF Great Falls-PHX Phoenix Sky Harbor Intl

6h 22m1 stop Salt Lake City

$474Delta

Tue, Dec 22 - Wed, Dec 30

6:20 pm - 10:53 pmPHX Phoenix Sky Harbor Intl-GTF Great Falls

4h 33m1 stop Salt Lake City

6:20 pm - 12:42 amGTF Great Falls-PHX Phoenix Sky Harbor Intl

6h 22m1 stop Salt Lake City

$474Delta

Tue, Dec 22 - Tue, Dec 29

11:05 am - 5:43 pmPHX Phoenix Sky Harbor Intl-GTF Great Falls

6h 38m1 stop Salt Lake City

6:20 pm - 12:42 amGTF Great Falls-PHX Phoenix Sky Harbor Intl

6h 22m1 stop Salt Lake City

$475Delta

Tue, Dec 22 - Mon, Dec 28

6:05 pm - 10:46 pmPHX Phoenix Sky Harbor Intl-GTF Great Falls

4h 41m1 stop Salt Lake City

6:20 pm - 12:42 amGTF Great Falls-PHX Phoenix Sky Harbor Intl

6h 22m1 stop Salt Lake City

$475Delta

Fri, Dec 18 - Wed, Dec 30

6:20 pm - 10:53 pmPHX Phoenix Sky Harbor Intl-GTF Great Falls

4h 33m1 stop Salt Lake City

5:30 am - 9:59 amGTF Great Falls-PHX Phoenix Sky Harbor Intl

4h 29m1 stop Salt Lake City

$475Delta

Tue, Dec 22 - Fri, Dec 25

Cheap last minute flights

Enter your travel dates to find the best prices.

1:34 pm - 9:12 pmPHX Phoenix Sky Harbor Intl-GTF Great Falls

6h 38m1 stop Denver Intl

6:15 am - 12:28 pmGTF Great Falls-PHX Phoenix Sky Harbor Intl

7h 13m1 stop Denver Intl

$888United Airlines

Fri, Aug 21 - Mon, Aug 24

3:19 pm - 9:12 pmPHX Phoenix Sky Harbor Intl-GTF Great Falls

4h 53m1 stop Denver Intl

6:15 am - 6:00 pmGTF Great Falls-PHX Phoenix Sky Harbor Intl

12h 45m2 stops Denver Intl Los Angeles

$894United Airlines

Fri, Aug 21 - Mon, Aug 24

10:26 am - 9:12 pmPHX Phoenix Sky Harbor Intl-GTF Great Falls

9h 46m2 stops Los Angeles Denver Intl

6:15 am - 2:55 pmGTF Great Falls-PHX Phoenix Sky Harbor Intl

9h 40m2 stops Denver Intl Los Angeles

$899United Airlines

Fri, Aug 21 - Mon, Aug 24

3:19 pm - 9:12 pmPHX Phoenix Sky Harbor Intl-GTF Great Falls

4h 53m1 stop Denver Intl

6:15 am - 10:34 amGTF Great Falls-PHX Phoenix Sky Harbor Intl

5h 19m1 stop Denver Intl

$906United Airlines

Wed, Aug 19 - Sun, Aug 23

10:15 am - 9:12 pmPHX Phoenix Sky Harbor Intl-GTF Great Falls

9h 57m2 stops Los Angeles Denver Intl

6:15 am - 10:34 amGTF Great Falls-PHX Phoenix Sky Harbor Intl

5h 19m1 stop Denver Intl

$912United Airlines

Wed, Aug 19 - Sun, Aug 23

10:15 am - 9:12 pmPHX Phoenix Sky Harbor Intl-GTF Great Falls

9h 57m2 stops Los Angeles Denver Intl

6:15 am - 2:55 pmGTF Great Falls-PHX Phoenix Sky Harbor Intl

9h 40m2 stops Denver Intl Los Angeles

$941United Airlines

Wed, Aug 19 - Sun, Aug 23

5:10 pm - 10:38 pmPHX Phoenix Sky Harbor Intl-GTF Great Falls

4h 28m1 stop Salt Lake City

6:18 pm - 12:12 amGTF Great Falls-PHX Phoenix Sky Harbor Intl

6h 54m1 stop Salt Lake City

$954Delta

Fri, Aug 21 - Mon, Aug 24

6:00 am - 12:28 pmPHX Phoenix Sky Harbor Intl-GTF Great Falls

5h 28m1 stop Salt Lake City

6:18 pm - 12:12 amGTF Great Falls-PHX Phoenix Sky Harbor Intl

6h 54m1 stop Salt Lake City

$954Delta

Thu, Aug 20 - Sun, Aug 23

1:34 pm - 9:12 pmPHX Phoenix Sky Harbor Intl-GTF Great Falls

6h 38m1 stop Denver Intl

6:15 am - 12:28 pmGTF Great Falls-PHX Phoenix Sky Harbor Intl

7h 13m1 stop Denver Intl

$954United Airlines

Sat, Aug 22 - Sun, Aug 23

6:02 am - 5:38 pmPHX Phoenix Sky Harbor Intl-GTF Great Falls

10h 36m2 stops Los Angeles Salt Lake City

6:18 pm - 12:12 amGTF Great Falls-PHX Phoenix Sky Harbor Intl

6h 54m1 stop Salt Lake City

$960Delta

Sat, Aug 22 - Sun, Aug 23

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United Airlines flights from Phoenix to Great Falls

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

United Airlines

Oct 31

PHX7:10 amPhoenix Sky Harbor Intl

5h 39m

1 stop

GTF1:49 pmGreat Falls

Nov 3

GTF2:45 pmGreat Falls

5h 10m

1 stop

PHX7:55 pmPhoenix Sky Harbor Intl

$408

United Airlines

Dec 24

PHX4:29 pmPhoenix Sky Harbor Intl

5h 12m

1 stop

GTF9:41 pmGreat Falls

Dec 25

GTF6:20 amGreat Falls

5h 23m

1 stop

PHX11:43 amPhoenix Sky Harbor Intl

$412

United Airlines

Oct 31

PHX10:20 amPhoenix Sky Harbor Intl

10h 18m

2 stops

GTF9:38 pmGreat Falls

Nov 3

GTF2:45 pmGreat Falls

6h 52m

1 stop

PHX9:37 pmPhoenix Sky Harbor Intl

$414

Alaska Airlines flights from Phoenix to Great Falls

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

Alaska Airlines

Oct 22

PHX7:03 pmPhoenix Sky Harbor Intl

20h 32m

1 stop

GTF4:35 pmGreat Falls

Oct 25

GTF5:15 pmGreat Falls

25h 45m

1 stop

PHX6:00 pmPhoenix Sky Harbor Intl

$410

Alaska Airlines

Oct 14

PHX6:02 amPhoenix Sky Harbor Intl

9h 33m

1 stop

GTF4:35 pmGreat Falls

Oct 21

GTF5:15 pmGreat Falls

5h 33m

1 stop

PHX9:48 pmPhoenix Sky Harbor Intl

$411

Alaska Airlines

Oct 31

PHX7:38 amPhoenix Sky Harbor Intl

32h 41m

2 stops

GTF5:19 pmGreat Falls

Nov 3

GTF4:59 pmGreat Falls

30h 28m

2 stops

PHX11:27 pmPhoenix Sky Harbor Intl

$459

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhoenixGreat Falls

PHX Phoenix Sky Harbor Intl - GTF Great Falls

PHXGTF

Phoenix Sky Harbor Intl

Sat 10/31

7:10 am-1:49 pm

1 stop5h 39m

Great Falls

Tue 11/3

2:45 pm-7:55 pm

1 stop5h 10m

$408

PhoenixGreat Falls

PHX Phoenix Sky Harbor Intl - GTF Great Falls

PHXGTF

Phoenix Sky Harbor Intl

Sat 10/31

3:31 pm-9:38 pm

1 stop5h 07m

Great Falls

Tue 11/3

6:30 am-1:37 pm

1 stop7h 07m

$408

PhoenixGreat Falls

PHX Phoenix Sky Harbor Intl - GTF Great Falls

PHXGTF

Phoenix Sky Harbor Intl

Thu 10/22

7:03 pm-4:35 pm

1 stop20h 32m

Great Falls

Sun 10/25

5:15 pm-6:00 pm

1 stop25h 45m

$410

PhoenixGreat Falls

PHX Phoenix Sky Harbor Intl - GTF Great Falls

PHXGTF

Phoenix Sky Harbor Intl

Thu 12/24

4:29 pm-9:41 pm

1 stop5h 12m

Great Falls

Fri 12/25

6:20 am-11:43 am

1 stop5h 23m

$412

PhoenixGreat Falls

PHX Phoenix Sky Harbor Intl - GTF Great Falls

PHXGTF

Phoenix Sky Harbor Intl

Sat 10/31

10:20 am-9:38 pm

2 stops10h 18m

Great Falls

Tue 11/3

2:45 pm-9:37 pm

1 stop6h 52m

$414

PhoenixGreat Falls

PHX Phoenix Sky Harbor Intl - GTF Great Falls

PHXGTF

Phoenix Sky Harbor Intl

Tue 12/22

6:20 pm-10:53 pm

1 stop4h 33m

Great Falls

Wed 12/30

6:20 pm-12:42 am

1 stop6h 22m

$474

PhoenixGreat Falls

PHX Phoenix Sky Harbor Intl - GTF Great Falls

PHXGTF

Phoenix Sky Harbor Intl

Tue 12/22

6:20 pm-10:53 pm

1 stop4h 33m

Great Falls

Tue 12/29

6:20 pm-12:42 am

1 stop6h 22m

$474

PhoenixGreat Falls

PHX Phoenix Sky Harbor Intl - GTF Great Falls

PHXGTF

Phoenix Sky Harbor Intl

Tue 12/22

11:05 am-5:43 pm

1 stop6h 38m

Great Falls

Mon 12/28

6:20 pm-12:42 am

1 stop6h 22m

$475

PhoenixGreat Falls

PHX Phoenix Sky Harbor Intl - GTF Great Falls

PHXGTF

Phoenix Sky Harbor Intl

Fri 12/18

6:05 pm-10:46 pm

1 stop4h 41m

Great Falls

Wed 12/30

6:20 pm-12:42 am

1 stop6h 22m

$475

Quickest round-trip

PhoenixGreat Falls

PHX Phoenix Sky Harbor Intl - GTF Great Falls

PHXGTF

Phoenix Sky Harbor Intl

Tue 12/22

6:20 pm-10:53 pm

1 stop4h 33m

Great Falls

Fri 12/25

5:30 am-9:59 am

1 stop4h 29m

$475

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 Phoenix to Great Falls

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

What is the typical price of a round-trip flight between Phoenix and Great Falls?

Prices are currently typical for flights on this route.

Typical prices usually range from $402 to $465.
The lowest price recently found on this route was $408.

What is the cheapest month to fly to Great Falls?

The month of February is another great option to travel to Great Falls, with average flight prices from Phoenix averaging around $0.

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

According to our data, the cheapest time of day to fly to Great Falls is in the afternoon. momondo users have found flights departing from Phoenix to Great Falls in the afternoon for as low as $120. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $144 on average. Flights to Great Falls from Phoenix in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Phoenix to Great Falls flight route?

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

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

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

Cheap Phoenix to Great Falls flight deals and tips

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

Best Price Found	$206
Fastest flight time	4h 33m
Direct flights	None

The best one-way flight to Great Falls from Phoenix in the past 72 hours is $206. The best round-trip flight deal from Phoenix to Great Falls found on momondo in the last 72 hours is $408.

The fastest flight from Phoenix to Great Falls takes 4h 33m

There are no direct flights from Phoenix to Great Falls. There are no popular flight routes from Phoenix to Great Falls.

Search flight deals

Frequently asked questions about flying from Phoenix to Great Falls

How far is Phoenix to Great Falls by plane?
The straight-line distance from Phoenix to Great Falls is 971.0 mi. By plane, this route typically takes 4h 33m.
When did momondo last update prices for flights from Phoenix to Great Falls Airport?
Prices for flights from Phoenix to Great Falls Airport refresh daily.
How many operators does momondo search for flights from Phoenix to Great Falls Airport?
The number of operators available for flights from Phoenix to Great Falls Airport is 1 as of August 2026.
How old do you have to be to fly from Phoenix to Great Falls Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Phoenix to Great Falls Airport.
What documentation or ID do you need to fly to Great Falls Airport?
The travel and health documents you'll need for your trip to Great Falls Airport 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 Great Falls Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Phoenix to Great Falls

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

Airline	Rating	Free Cancellation	Price
Allegiant Air	PriceFrom $90	Free Cancellation	Rating 7.3 675 reviews		Search Allegiant Air flights
Delta	PriceFrom $352	Free Cancellation	Rating 7.8 8,503 reviews		Search Delta flights

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Why use momondo?

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

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 Phoenix to Great Falls for you.

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

Flights from Phoenix to Great Falls with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Phoenix to Great Falls flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for Phoenix to Great Falls flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.