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

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

How many flights depart from Great Falls to United States on average per day?

As of November 2025, there are 7 flights per day flying from Great Falls to United States. The most common time of day flights depart is 2:00PM, with 58% of flights taking off in the afternoon.

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

As of November 2025, there are 51 flights per week flying from Great Falls to United States. The most common day of the week flights depart is Mon, with 20% of flights taking off on this day.

What airlines fly to United States?

United Airlines, Delta and Allegiant Air are the top three most popular airlines that fly to United States from Great Falls according to our data. United Airlines is the first choice among our users, with 48% of people opting to fly with this airline when traveling to United States. Keep in mind that there are 4 different airlines that fly to United States 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 United States?

Prices for flights from Great Falls Airport to United States are updated daily.

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

The number of operators available for flights from Great Falls Airport to United States is 4 as of November 2025.

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

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 Great Falls Airport to United States.

What documentation or ID do you need to fly to United States?

The required travel and health documents for your United States trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at United States. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$50 Cheap Flights from Great Falls to the United States in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Great Falls to the United States

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:21 pm - 11:36 pmGTF-LAS

2h 15mnonstop

5:09 pm - 8:32 pmLAS-GTF

2h 23mnonstop

$84Allegiant Air

Find Deal

Fri, Nov 14 - Mon, Nov 17

10:21 pm - 11:36 pmGTF-LAS

2h 15mnonstop

5:09 pm - 8:32 pmLAS-GTF

2h 23mnonstop

$88Allegiant Air

Find Deal

Fri, Nov 14 - Mon, Nov 17

7:35 pm - 8:25 pmGTF-SEA

1h 50mnonstop

4:19 pm - 6:55 pmSEA-GTF

1h 36mnonstop

$126Hawaiian Airlines

Find Deal

Sat, Dec 6 - Mon, Dec 8

4:00 pm - 4:48 pmGTF-SEA

1h 48mnonstop

12:45 pm - 3:20 pmSEA-GTF

1h 35mnonstop

$167Hawaiian Airlines

Find Deal

Tue, Mar 10 - Wed, Mar 11

6:15 pm - 12:11 amGTF-SEA

6h 56m1 stop

4:55 pm - 10:53 pmSEA-GTF

4h 58m1 stop

$176Delta

Find Deal

Tue, Mar 10 - Wed, Mar 11

4:00 pm - 4:48 pmGTF-SEA

1h 48mnonstop

12:45 pm - 3:20 pmSEA-GTF

1h 35mnonstop

$177Alaska Airlines

Find Deal

Tue, Feb 17 - Thu, Feb 19

6:10 pm - 11:25 pmGTF-SEA

6h 15m1 stop

5:25 am - 12:31 pmSEA-GTF

6h 06m1 stop

$217Delta

Find Deal

Sat, Dec 6 - Mon, Dec 8

2:29 pm - 4:40 pmGTF-DEN

2h 11mnonstop

7:35 pm - 9:53 pmDEN-GTF

2h 18mnonstop

$219United Airlines

Find Deal

Fri, Jan 9 - Sun, Jan 11

4:00 pm - 8:37 pmGTF-SLC

4h 37m1 stop

9:00 am - 3:20 pmSLC-GTF

6h 20m1 stop

$228Alaska Airlines

Find Deal

Sun, Mar 1 - Sat, Mar 7

6:20 am - 8:22 amGTF-DEN

2h 02mnonstop

8:30 pm - 10:39 pmDEN-GTF

2h 09mnonstop

$269United Airlines

Find Deal

Thu, Nov 27 - Sun, Nov 30

Delta flights from Great Falls to United States

Our best Delta deals on Great Falls to United States flight tickets

Delta

Mar 10

GTF6:15 pmGreat Falls

6h 56m

1 stop

SEA12:11 amSeattle/Tacoma Intl

Mar 11

SEA4:55 pmSeattle/Tacoma Intl

4h 58m

1 stop

GTF10:53 pmGreat Falls

$176

Find similar

Delta

Dec 6

GTF6:10 pmGreat Falls

6h 15m

1 stop

SEA11:25 pmSeattle/Tacoma Intl

Dec 8

SEA5:25 amSeattle/Tacoma Intl

6h 06m

1 stop

GTF12:31 pmGreat Falls

$217

Find similar

Delta

Feb 12

GTF6:08 pmGreat Falls

4h 21m

1 stop

DEN10:29 pmDenver Intl

Feb 17

DEN12:50 pmDenver Intl

4h 38m

1 stop

GTF5:28 pmGreat Falls

$218

Find similar

Allegiant Air flights from Great Falls to United States

Our best Allegiant Air deals on Great Falls to United States flight tickets

Allegiant Air

Nov 14

GTF10:21 pmGreat Falls

2h 15m

LAS11:36 pmLas Vegas Harry Reid Intl

Nov 17

LAS5:09 pmLas Vegas Harry Reid Intl

2h 23m

GTF8:32 pmGreat Falls

$84

Find similar

Allegiant Air

Nov 14

GTF10:21 pmGreat Falls

2h 15m

LAS11:36 pmLas Vegas Harry Reid Intl

Nov 17

LAS5:09 pmLas Vegas Harry Reid Intl

2h 23m

GTF8:32 pmGreat Falls

$88

Find similar

Allegiant Air

Dec 14

GTF11:17 amGreat Falls

2h 13m

LAS12:30 pmLas Vegas Harry Reid Intl

Dec 19

LAS6:13 pmLas Vegas Harry Reid Intl

2h 22m

GTF9:35 pmGreat Falls

$108

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Great Falls to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Fri 11/14

10:21 pm-11:36 pm

Nonstop2h 15m

Las Vegas Harry Reid Intl

Mon 11/17

5:09 pm-8:32 pm

Nonstop2h 23m

$84

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Fri 11/14

10:21 pm-11:36 pm

Nonstop2h 15m

Las Vegas Harry Reid Intl

Mon 11/17

5:09 pm-8:32 pm

Nonstop2h 23m

$88

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Sat 12/6

7:35 pm-8:25 pm

Nonstop1h 50m

Seattle/Tacoma Intl

Mon 12/8

4:19 pm-6:55 pm

Nonstop1h 36m

$126

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Tue 3/10

4:00 pm-4:48 pm

Nonstop1h 48m

Seattle/Tacoma Intl

Wed 3/11

12:45 pm-3:20 pm

Nonstop1h 35m

$167

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Tue 3/10

6:15 pm-12:11 am

1 stop6h 56m

Seattle/Tacoma Intl

Wed 3/11

4:55 pm-10:53 pm

1 stop4h 58m

$176

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Tue 2/17

4:00 pm-4:48 pm

Nonstop1h 48m

Seattle/Tacoma Intl

Thu 2/19

12:45 pm-3:20 pm

Nonstop1h 35m

$177

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Sat 12/6

6:10 pm-11:25 pm

1 stop6h 15m

Seattle/Tacoma Intl

Mon 12/8

5:25 am-12:31 pm

1 stop6h 06m

$217

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Fri 1/9

2:29 pm-4:40 pm

Nonstop2h 11m

Denver Intl

Sun 1/11

7:35 pm-9:53 pm

Nonstop2h 18m

$219

Great FallsSalt Lake City

GTF - SLC

GTFSLC

Great Falls

Sun 3/1

4:00 pm-8:37 pm

1 stop4h 37m

Salt Lake City

Sat 3/7

9:00 am-3:20 pm

1 stop6h 20m

$228

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Thu 11/27

6:20 am-8:22 am

Nonstop2h 02m

Denver Intl

Sun 11/30

8:30 pm-10:39 pm

Nonstop2h 09m

$269

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 United States

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 day to depart on your flight to United States?

According to our data, Wednesday is the cheapest day to fly to United States from Great Falls. The lowest ticket price found for a Wednesday departure recently was $545. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $808. These prices are subject to change though, so be sure to set up a Price Alert for flights to United States.

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

The cheapest time of day to fly to United States is in the morning when flights can be purchased for as low as $617. Try not to purchase tickets in the afternoon because they tend to be around $732. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Great Falls to United States flight route?

Fly from Great Falls to Las Vegas Harry Reid Intl for the best Great Falls - United States flight prices

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

There are 4 cabin classes available to choose from on Great Falls to United States flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Great Falls to United States flights?

No. A direct flight is the cheapest option for a flight between Great Falls to United States.

Cheap Great Falls to United States flight deals and tips

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

Best Price Found	$74
Fastest flight time	1h 37m
Direct flights	Every day
Airports in United States	4 airports

The best one-way flight to United States from Great Falls in the past 72 hours is $74. The best round-trip flight deal from Great Falls to United States found on momondo in the last 72 hours is $128.

The fastest flight from Great Falls to United States takes 1h 37m

Direct flights go from Great Falls to United States every day.

There are 4 airports near United States: Salt Lake City (SLC), Denver Intl (DEN), Seattle/Tacoma Intl (SEA), Las Vegas Harry Reid Intl (LAS)

Search flight deals

When did momondo last update prices for flights from Great Falls Airport to United States?
Prices for flights from Great Falls Airport to United States are updated daily.
How many operators does momondo search for flights from Great Falls Airport to United States?
The number of operators available for flights from Great Falls Airport to United States is 4 as of November 2025.
How old do you have to be to fly from Great Falls Airport to United States?
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 Great Falls Airport to United States.
What documentation or ID do you need to fly to United States?
The required travel and health documents for your United States trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at United States. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Great Falls to United States?
Based on momondo bookings for flights between Great Falls and United States, the leading plane model is Airbus A319, making up 48.13% of the total bookings. Other popular models include Airbus A320-100/200 with 15.51%, Embraer 175 (Enhanced Winglets) with 13.90%, and Embraer 175 with 6.95%.

Best airlines flying from Great Falls to United States

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

Airline	Rating	Free Cancellation	Price
Allegiant Air	PriceFrom $78	Free Cancellation	Rating 7.2 694 reviews	Search Allegiant Air flights
Delta	PriceFrom $132	Free Cancellation	Rating 7.9 8,002 reviews	Search Delta flights
Alaska Airlines	PriceFrom $198	Free Cancellation	Rating 8.0 11,236 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $199	Free Cancellation	Rating 7.4 8,997 reviews	Search United Airlines flights

Why use momondo?

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

It is quick and easy to find Great Falls to United States flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to United States that suits you.

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

All flight searches from Great Falls to United States on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential Great Falls to United States flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to United States 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.

An easier way to manage your United States 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Wed 12/3

Wed 12/10

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Popular cities in the United States

Flights to New Yorkfrom $49

Flights to Los Angelesfrom $49

Flights to Miamifrom $49

Flights to Chicagofrom $54

Flights to Orlandofrom $47

Flights to Las Vegasfrom $49

Flights to San Franciscofrom $54

Flights to Washington, D.C.from $54

Flights to Bostonfrom $40

Flights to Atlantafrom $40

Flights to Dallasfrom $49

Flights to Seattlefrom $68

Cheap flights from Great Falls to the United States from $50

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Great Falls to the United States departing on 12/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Great Falls to the United States

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Delta flights from Great Falls to United States

Our best Delta deals on Great Falls to United States flight tickets

Allegiant Air flights from Great Falls to United States

Our best Allegiant Air deals on Great Falls to United States flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Great Falls to the United States that are best for you.

See travel insights to the United States from

How to get the cheapest flight ticket from Great Falls to United States

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

What is the cheapest day to depart on your flight to United States?

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

The cheapest time of day to fly to United States is in the morning when flights can be purchased for as low as $617. Try not to purchase tickets in the afternoon because they tend to be around $732. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Great Falls to United States flight route?

Fly from Great Falls to Las Vegas Harry Reid Intl for the best Great Falls - United States flight prices

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

There are 4 cabin classes available to choose from on Great Falls to United States flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Great Falls to United States flights?

No. A direct flight is the cheapest option for a flight between Great Falls to United States.

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

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

What airlines fly to United States?

How many flights depart from Great Falls to United States on average per day?

As of November 2025, there are 7 flights per day flying from Great Falls to United States. The most common time of day flights depart is 2:00PM, with 58% of flights taking off in the afternoon.

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

As of November 2025, there are 51 flights per week flying from Great Falls to United States. The most common day of the week flights depart is Mon, with 20% of flights taking off on this day.

Cheap Great Falls to United States flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in United States

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

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

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

What documentation or ID do you need to fly to United States?

What is the most popular plane model from Great Falls to United States?

Best airlines flying from Great Falls to United States

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

Why use momondo?

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

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

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

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

An easier way to manage your United States 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

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo