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Cheap flights from Great Falls to Denver from $126

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 Denver departing on 12/8. 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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0 bags

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Cheap round-trip flights

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United Airlines Logo
2:29 pm - 4:40 pmGTF-DEN
2h 11mnonstop
United Airlines Logo
7:35 pm - 9:53 pmDEN-GTF
2h 18mnonstop
$199United Airlines
Find Deal
Fri, Jan 9 - Thu, Jan 15
Multiple Airlines Logo
10:45 am - 8:20 pmGTF-DEN
9h 35m1 stop
Multiple Airlines Logo
10:01 am - 4:28 pmDEN-GTF
6h 27m1 stop
$212Multiple Airlines
Find Deal
Thu, Jan 22 - Mon, Jan 26
Delta Logo
5:30 am - 9:38 amGTF-DEN
4h 08m1 stop
Delta Logo
12:49 pm - 5:30 pmDEN-GTF
4h 41m1 stop
$218Delta
Find Deal
Fri, Jan 9 - Thu, Jan 15
United Airlines Logo
2:29 pm - 4:40 pmGTF-DEN
2h 11mnonstop
United Airlines Logo
7:35 pm - 9:53 pmDEN-GTF
2h 18mnonstop
$237United Airlines
Find Deal
Sat, Jan 10 - Sun, Jan 11
Alaska Airlines Logo
5:59 pm - 11:35 pmGTF-DEN
5h 36m1 stop
Alaska Airlines Logo
11:49 am - 5:19 pmDEN-GTF
29h 30m2 stops
$240Alaska Airlines
Find Deal
Thu, Jan 22 - Mon, Jan 26
Delta Logo
5:30 am - 9:38 amGTF-DEN
4h 08m1 stop
Delta Logo
7:00 am - 12:33 pmDEN-GTF
5h 33m1 stop
$243Delta
Find Deal
Fri, Jan 9 - Sun, Jan 11
Alaska Airlines Logo
5:59 pm - 11:35 pmGTF-DEN
5h 36m1 stop
Alaska Airlines Logo
8:04 am - 5:19 pmDEN-GTF
33h 15m2 stops
$270Alaska Airlines
Find Deal
Fri, Jan 9 - Thu, Jan 15
Multiple Airlines Logo
10:25 pm - 9:04 amGTF-DEN
10h 39m1 stop
Multiple Airlines Logo
10:37 pm - 9:40 pmDEN-GTF
23h 03m1 stop
$278Multiple Airlines
Find Deal
Mon, Dec 22 - Sun, Dec 28
Multiple Airlines Logo
10:25 pm - 9:55 amGTF-DEN
11h 30m2 stops
Multiple Airlines Logo
10:44 pm - 8:03 pmDEN-GTF
21h 19m1 stop
$282Multiple Airlines
Find Deal
Mon, Dec 8 - Sat, Dec 13
Hawaiian Airlines Logo
5:59 pm - 11:35 pmGTF-DEN
5h 36m1 stop
Hawaiian Airlines Logo
7:00 am - 5:19 pmDEN-GTF
10h 19m1 stop
$285Hawaiian Airlines
Find Deal
Sun, Jan 25 - Thu, Jan 29

United Airlines flights from Great Falls to Denver

Our best United Airlines deals on Great Falls to Denver flight tickets
United Airlines
Jan 9
GTF2:29 pmGreat Falls
2h 11m
DEN4:40 pmDenver Intl
Jan 15
DEN7:35 pmDenver Intl
2h 18m
GTF9:53 pmGreat Falls
$199
Find similar
United Airlines
Jan 9
GTF2:29 pmGreat Falls
2h 11m
DEN4:40 pmDenver Intl
Jan 11
DEN7:35 pmDenver Intl
2h 18m
GTF9:53 pmGreat Falls
$234
Find similar
United Airlines
Jan 10
GTF2:29 pmGreat Falls
2h 11m
DEN4:40 pmDenver Intl
Jan 11
DEN7:35 pmDenver Intl
2h 18m
GTF9:53 pmGreat Falls
$237
Find similar

Alaska Airlines flights from Great Falls to Denver

Our best Alaska Airlines deals on Great Falls to Denver flight tickets
Alaska Airlines
Jan 22
GTF5:59 pmGreat Falls
5h 36m
1 stop
DEN11:35 pmDenver Intl
Jan 26
DEN11:49 amDenver Intl
29h 30m
2 stops
GTF5:19 pmGreat Falls
$240
Find similar
Alaska Airlines
Jan 9
GTF5:59 pmGreat Falls
5h 36m
1 stop
DEN11:35 pmDenver Intl
Jan 11
DEN12:34 pmDenver Intl
28h 45m
2 stops
GTF5:19 pmGreat Falls
$270
Find similar
Alaska Airlines
Jan 10
GTF5:59 pmGreat Falls
5h 36m
1 stop
DEN11:35 pmDenver Intl
Jan 11
DEN11:49 amDenver Intl
29h 30m
2 stops
GTF5:19 pmGreat Falls
$280
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Great Falls to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 20, 2025.
Use the filters below to find and compare flights from Great Falls to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Fri 1/9

2:29 pm-4:40 pm

Nonstop2h 11m

Denver Intl

Thu 1/15

7:35 pm-9:53 pm

Nonstop2h 18m

$199

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Thu 1/22

10:45 am-8:20 pm

1 stop9h 35m

Denver Intl

Mon 1/26

10:01 am-4:28 pm

1 stop6h 27m

$212

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Fri 1/9

5:30 am-9:38 am

1 stop4h 08m

Denver Intl

Thu 1/15

12:49 pm-5:30 pm

1 stop4h 41m

$218

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Sat 1/10

2:29 pm-4:40 pm

Nonstop2h 11m

Denver Intl

Sun 1/11

7:35 pm-9:53 pm

Nonstop2h 18m

$237

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Thu 1/22

5:59 pm-11:35 pm

1 stop5h 36m

Denver Intl

Mon 1/26

11:49 am-5:19 pm

2 stops29h 30m

$240

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Fri 1/9

5:30 am-9:38 am

1 stop4h 08m

Denver Intl

Sun 1/11

7:00 am-12:33 pm

1 stop5h 33m

$243

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Fri 1/9

5:59 pm-11:35 pm

1 stop5h 36m

Denver Intl

Thu 1/15

8:04 am-5:19 pm

2 stops33h 15m

$270

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Mon 12/22

10:25 pm-9:04 am

1 stop10h 39m

Denver Intl

Sun 12/28

10:37 pm-9:40 pm

1 stop23h 03m

$278

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Mon 12/8

10:25 pm-9:55 am

2 stops11h 30m

Denver Intl

Sat 12/13

10:44 pm-8:03 pm

1 stop21h 19m

$282

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Sun 1/25

5:59 pm-11:35 pm

1 stop5h 36m

Denver Intl

Thu 1/29

7:00 am-5:19 pm

1 stop10h 19m

$285

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Denver from

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

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 month to fly to Denver?

The cheapest month to fly to Denver from Great Falls is in February. Flight prices, which tend to average around $269, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in February, then you should wait until November to fly from Great Falls, when ticket prices are also cheap, with an average price of $269.

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Wednesday when prices can be found for as low as $559. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $698.

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

The cheapest time of day to fly to Denver is in the afternoon when flights can be purchased for as low as $287. Flights in the morning are often more expensive with an average ticket price of $649.

What is the cheapest Great Falls to Denver Intl flight route?

Fly from Great Falls to Denver Intl for the best Great Falls - Denver Intl flight prices

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

There are 4 cabin classes available to choose from on Great Falls to Denver Intl 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 Denver flights?

You could potentially save up to 58% on your flight if you consider stops on a Great Falls to Denver flight.

How have Great Falls to Denver flight prices changed over time?

As of November 2025, prices for Great Falls to Denver flights are approximately 1% cheaper when compared to flights at the same time last year.

When to book flights from Great Falls to Denver

Are you open to changing your travel dates? Check out the ideal times to fly from Great Falls to Denver according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Great Falls to Denver (GTF to DEN) flight deals and tips

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

Best Price Found

$265

Fastest flight time

1h 48m

Direct flights

Every day

Airports in Denver

1 airport
The best one-way flight to Denver from Great Falls in the past 72 hours is $265. The best round-trip flight deal from Great Falls to Denver found on momondo in the last 72 hours is $399.
The fastest flight from Great Falls to Denver takes 1h 48m
Direct flights go from Great Falls to Denver every day.
There is 1 airport near Denver: Denver Intl (DEN)
Search flight deals

  • How far is Great Falls to Denver Intl by plane?

    Great Falls and Denver Intl are 621.5 mi apart from one another. Flights usually cover this in 1h 48m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Great Falls Airport to Denver Intl Airport?

    Prices for flights from Great Falls Airport to Denver Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Great Falls Airport to Denver Intl Airport?

  • How old do you have to be to fly from Great Falls Airport to Denver Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Great Falls Airport to Denver Intl Airport.

  • What documentation or ID do you need to fly to Denver Intl Airport?

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

  • What is the most popular plane model from Great Falls to Denver?

  • What is the most popular airline from Great Falls to Denver?

Best airlines flying from Great Falls to Denver

Compare and see reviews for airlines that fly from Great Falls to Denver with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $199Free CancellationRating
7.4
9,028 reviews
Search United Airlines flights
DeltaPriceFrom $213Free CancellationRating
7.9
8,002 reviews
Search Delta flights

  • United Airlines Flights From Great Falls to Denver

    United Airlines is one of the most popular airlines flying from Great Falls to Denver, operating 14 flights/week on average for this route. A good United Airlines flight deal for Great Falls to Denver starts from $199 round-trip, up to an average price of $330. Our users have rated United Airlines at 7.4/10.

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Breckenridge
Estes Park
Black Hawk
Aurora
Fort Collins
Keystone
Cripple Creek
Manitou Springs
Longmont
Boulder
Greeley
Lakewood
Thornton
Westminster
Winter Park
Copper Mountain
Silverthorne
Frisco
Centennial
Grand Lake

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Great Falls to Denver. momondo saves you time and could save you money on your trip.

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

Flights from Great Falls to Denver 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 Great Falls to Denver?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Denver from Great Falls.

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

Price alerts on flights to Denver 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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