Which airlines fly to Great Falls?

There may be other airlines that fly to Great Falls from United States, but the most popular among our users are United Airlines, Delta, Alaska Airlines and Allegiant Air. These airlines should offer flights to Great Falls on a routine basis if you’re flying from one of the more popular airports in United States.

Alaska Airlines Flights to Great Falls

Alaska Airlines operates around 7 flights into Great Falls in any given week. The most common departure point for these flights was from Seattle/Tacoma Intl, with the best round-trip Alaska Airlines deal found being $146 (Seattle/Tacoma Intl to Great Falls). Users have rated Alaska Airlines 7.9/10 in over 12,644 reviews on momondo.

Delta Flights to Great Falls

Delta (7.8/10, 8,454 reviews) is also a popular choice for flights to Great Falls, with deals from as low as $226 from Atlanta Hartsfield-Jackson, round-trip. With 20 Delta flights to Great Falls on average each week, prices can vary significantly by origin and availability.

How long does it take to fly to Great Falls?

Flight times from United States to Great Falls vary, but if you’re flying out of Los Angeles and flying into Great Falls (one of the most popular routes), then the duration is 4h 32m on average. Another popular route from United States to Great Falls is flying from San Francisco to Great Falls, which will take roughly 4h 23m. Keep in mind that layovers or delays could extend your travel time.

$145 Cheap Flights to Great Falls in 2026

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Find the cheapest flights from the United States to Great Falls

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:38 pm - 9:34 pm

DEN

GTF

1h 56mnonstop

6:15 am - 8:16 am

GTF

DEN

2h 01mnonstop

$259United Airlines

Fri, Aug 7 - Tue, Aug 11

7:38 pm - 9:34 pm

DEN

GTF

1h 56mnonstop

6:15 am - 8:15 am

GTF

DEN

2h 00mnonstop

$267United Airlines

Sun, Aug 2 - Sun, Aug 9

6:28 pm - 10:38 pm

DEN

GTF

4h 10m

1 stop

6:18 pm - 10:55 pm

GTF

DEN

4h 37m

1 stop

$278Delta

Thu, Aug 13 - Thu, Aug 20

7:38 pm - 9:34 pm

DEN

GTF

1h 56mnonstop

6:15 am - 8:15 am

GTF

DEN

2h 00mnonstop

$279United Airlines

Sun, Jul 19 - Sat, Jul 25

7:38 pm - 9:34 pm

DEN

GTF

1h 56mnonstop

6:15 am - 8:15 am

GTF

DEN

2h 00mnonstop

$291United Airlines

Sat, Aug 1 - Wed, Aug 5

12:54 pm - 5:38 pm

DEN

GTF

4h 44m

1 stop

5:40 am - 9:14 am

GTF

DEN

3h 34m

1 stop

$298Delta

Wed, Aug 5 - Wed, Aug 12

7:38 pm - 9:34 pm

DEN

GTF

1h 56mnonstop

6:15 am - 8:15 am

GTF

DEN

2h 00mnonstop

$301United Airlines

Sat, Aug 1 - Sat, Aug 8

9:03 pm - 4:45 pm

DFW

GTF

20h 42m

1 stop

5:19 pm - 2:53 pm

GTF

DFW

20h 34m

1 stop

$318Alaska Airlines

Fri, Sep 4 - Tue, Sep 8

1:53 pm - 4:29 pm

SEA

GTF

1h 36mnonstop

5:09 pm - 5:59 pm

GTF

SEA

1h 50mnonstop

$328Alaska Airlines

Fri, Aug 14 - Mon, Aug 17

6:49 pm - 9:29 am

PDX

GTF

13h 40m

1 stop

10:19 am - 4:54 pm

GTF

PDX

7h 35m

1 stop

$364Multiple Airlines

Thu, Aug 13 - Mon, Aug 17

Fly from

Route

Depart

Return

Price

Cheapest round-trip

DenverGreat Falls

DEN - GTF

DENGTF

Denver Intl

Fri 8/7

7:38 pm-9:34 pm

Nonstop1h 56m

Great Falls

Tue 8/11

6:15 am-8:16 am

Nonstop2h 01m

$259

DenverGreat Falls

DEN - GTF

DENGTF

Denver Intl

Sun 8/2

7:38 pm-9:34 pm

Nonstop1h 56m

Great Falls

Sun 8/9

6:15 am-8:15 am

Nonstop2h 00m

$267

DenverGreat Falls

DEN - GTF

DENGTF

Denver Intl

Thu 8/13

6:28 pm-10:38 pm

1 stop4h 10m

Great Falls

Thu 8/20

6:18 pm-10:55 pm

1 stop4h 37m

$278

DenverGreat Falls

DEN - GTF

DENGTF

Denver Intl

Sun 7/19

7:38 pm-9:34 pm

Nonstop1h 56m

Great Falls

Sat 7/25

6:15 am-8:15 am

Nonstop2h 00m

$279

DenverGreat Falls

DEN - GTF

DENGTF

Denver Intl

Sat 8/1

7:38 pm-9:34 pm

Nonstop1h 56m

Great Falls

Wed 8/5

6:15 am-8:15 am

Nonstop2h 00m

$291

DenverGreat Falls

DEN - GTF

DENGTF

Denver Intl

Wed 8/5

12:54 pm-5:38 pm

1 stop4h 44m

Great Falls

Wed 8/12

5:40 am-9:14 am

1 stop3h 34m

$298

DenverGreat Falls

DEN - GTF

DENGTF

Denver Intl

Sat 8/1

7:38 pm-9:34 pm

Nonstop1h 56m

Great Falls

Sat 8/8

6:15 am-8:15 am

Nonstop2h 00m

$301

DallasGreat Falls

DFW - GTF

DFWGTF

Dallas/Fort Worth

Fri 9/4

9:03 pm-4:45 pm

1 stop20h 42m

Great Falls

Tue 9/8

5:19 pm-2:53 pm

1 stop20h 34m

$318

Quickest round-trip

SeattleGreat Falls

SEA - GTF

SEAGTF

Seattle/Tacoma Intl

Fri 8/14

1:53 pm-4:29 pm

Nonstop1h 36m

Great Falls

Mon 8/17

5:09 pm-5:59 pm

Nonstop1h 50m

$328

PortlandGreat Falls

PDX - GTF

PDXGTF

Portland

Thu 8/13

6:49 pm-9:29 am

1 stop13h 40m

Great Falls

Mon 8/17

10:19 am-4:54 pm

1 stop7h 35m

$364

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

Great Falls flights insights and trends

Explore insights for your Great Falls flight to craft the best travel plan

Prices

Other information

What is the cheapest month to fly to Great Falls?

The month of August is another great option to travel to Great Falls, with average flight prices from United States averaging around $432.

What is the absolute cheapest flight to Great Falls?

The best deal found on momondo in the last two weeks was a flight to Great Falls from Denver for $269. This is 20% cheaper than most flight deals to Great Falls. To find the cheapest price to Great Falls from your area, use momondo’s Airport-to-Airport Pricing Tool.

See prices from:

Cheapest flights to Great Falls

Find the cheapest flights to Great Falls from your nearest city or airport

Find flights from Los Angeles to Helena

CHEAPEST MONTH TO FLY TO GREAT FALLS FROM LOS ANGELES	May	48% cheaper	Flying from Los Angeles to Great Falls costs on average just $169 in May
MOST EXPENSIVE MONTH TO FLY TO GREAT FALLS FROM LOS ANGELES	December	115% more expensive	It costs about $697 for flights to Great Falls from Los Angeles in December
MOST POPULAR MONTH TO FLY TO GREAT FALLS FROM LOS ANGELES	July	1,300% more users visited	More momondo users searched in flights to Great Falls from Los Angeles in July than any other month

Cheap Great Falls flight deals and tips

Summary info about Great Falls flight prices, duration and airlines

Best One-Way Price	$145
Best Round-Trip Price	$259
Fastest flight time	1h 37m
Popular in	December

The best one-way flight price to Great Falls from United States in the last 5 days is $145 (Denver Intl to Great Falls).

Search Deals

The best round-trip flight price to Great Falls from United States in the last 5 days is $259 (Denver Intl to Great Falls).

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The fastest flight to Great Falls from United States takes 1h 37m (Seattle/Tacoma Intl to Great Falls).

Search Deals

December has the highest demand for flights to Great Falls, with a 0% price increase on average.

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Frequently asked questions about flying to Great Falls

Is there an alternative airport near Great Falls?

Helena Airport can be an alternative airport used for travel to Great Falls.

Is there a cheaper alternative to flying into Great Falls?

You can find deals at Helena Airport for $334 on average, but that price can change based on your departure airport. To save money, try momondo’s Airport-to-Airport Pricing Tool.

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

Prices for flights to Great Falls Airport were last updated today.

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

As of July 2026, there are 4 operators available to choose from for flights to Great Falls Airport.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel 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.

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Why use momondo?

Why should I use momondo to find a flight deal 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 for you.

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

Yes. momondo enables you to select and highlight flights to Great Falls with this policy.

How can momondo help me find flights to Great Falls?

momondo provides multiple filters to help you find the best flight to Great Falls. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Great Falls, momondo offers a useful price alert feature which will track prices for flights to Great Falls and alert you when they change.