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Cheap flights from Great Falls to Denver from $139

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 11/21. 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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0 bags

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Multiple Airlines Logo
5:18 pm - 10:03 amGTF-DEN
16h 45m1 stop
Multiple Airlines Logo
10:37 pm - 4:28 pmDEN-GTF
17h 51m1 stop
$197Multiple Airlines
Find Deal
Fri, Jan 9 - Sun, Jan 11
Delta Logo
6:08 pm - 10:29 pmGTF-DEN
4h 21m1 stop
Delta Logo
12:50 pm - 5:28 pmDEN-GTF
4h 38m1 stop
$218Delta
Find Deal
Thu, Feb 12 - Tue, Feb 17
United Airlines Logo
2:29 pm - 4:40 pmGTF-DEN
2h 11mnonstop
United Airlines Logo
7:35 pm - 9:53 pmDEN-GTF
2h 18mnonstop
$219United Airlines
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Fri, Jan 9 - Sun, Jan 11
Multiple Airlines Logo
5:18 pm - 10:52 amGTF-DEN
17h 34m2 stops
Multiple Airlines Logo
10:37 pm - 4:28 pmDEN-GTF
17h 51m1 stop
$229Multiple Airlines
Find Deal
Fri, Jan 9 - Sun, Jan 11
Delta Logo
5:30 am - 9:47 amGTF-DEN
4h 17m1 stop
Delta Logo
3:40 pm - 10:53 pmDEN-GTF
7h 13m1 stop
$238Delta
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Wed, Mar 11 - Tue, Mar 17
Multiple Airlines Logo
5:18 pm - 3:58 amGTF-DEN
10h 40m1 stop
Multiple Airlines Logo
10:37 pm - 4:28 pmDEN-GTF
17h 51m1 stop
$247Multiple Airlines
Find Deal
Fri, Jan 23 - Sun, Jan 25
Delta Logo
1:10 pm - 11:22 pmGTF-DEN
10h 12m2 stops
Delta Logo
5:30 am - 12:32 pmDEN-GTF
7h 02m1 stop
$256Delta
Find Deal
Wed, Mar 11 - Wed, Mar 18
United Airlines Logo
6:20 am - 8:22 amGTF-DEN
2h 02mnonstop
United Airlines Logo
8:30 pm - 10:39 pmDEN-GTF
2h 09mnonstop
$269United Airlines
Find Deal
Thu, Nov 27 - Sun, Nov 30
Alaska Airlines Logo
7:35 pm - 6:03 pmGTF-DEN
22h 28m1 stop
Alaska Airlines Logo
1:34 pm - 7:20 pmDEN-GTF
5h 46m1 stop
$275Alaska Airlines
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Fri, Dec 12 - Sun, Jan 11
Alaska Airlines Logo
4:00 pm - 10:39 pmGTF-DEN
6h 39m1 stop
Alaska Airlines Logo
7:00 am - 3:20 pmDEN-GTF
8h 20m1 stop
$288Alaska Airlines
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Fri, Mar 13 - Tue, Mar 17

Delta flights from Great Falls to Denver

Our best Delta deals on Great Falls to Denver flight tickets
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
Delta
Mar 11
GTF5:30 amGreat Falls
4h 17m
1 stop
DEN9:47 amDenver Intl
Mar 17
DEN3:40 pmDenver Intl
7h 13m
1 stop
GTF10:53 pmGreat Falls
$238
Find similar
Delta
Mar 11
GTF1:10 pmGreat Falls
10h 12m
2 stops
DEN11:22 pmDenver Intl
Mar 18
DEN5:30 amDenver Intl
7h 02m
1 stop
GTF12:32 pmGreat Falls
$256
Find similar

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 11
DEN7:35 pmDenver Intl
2h 18m
GTF9:53 pmGreat Falls
$219
Find similar
United Airlines
Nov 27
GTF6:20 amGreat Falls
2h 02m
DEN8:22 amDenver Intl
Nov 30
DEN8:30 pmDenver Intl
2h 09m
GTF10:39 pmGreat Falls
$269
Find similar
United Airlines
Mar 12
GTF6:15 amGreat Falls
2h 12m
DEN8:27 amDenver Intl
Mar 17
DEN7:23 pmDenver Intl
2h 10m
GTF9:33 pmGreat Falls
$319
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 3, 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

5:18 pm-10:03 am

1 stop16h 45m

Denver Intl

Sun 1/11

10:37 pm-4:28 pm

1 stop17h 51m

$197

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Thu 2/12

6:08 pm-10:29 pm

1 stop4h 21m

Denver Intl

Tue 2/17

12:50 pm-5:28 pm

1 stop4h 38m

$218

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 FallsDenver

GTF - DEN

GTFDEN

Great Falls

Fri 1/9

5:18 pm-10:52 am

2 stops17h 34m

Denver Intl

Sun 1/11

10:37 pm-4:28 pm

1 stop17h 51m

$229

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Wed 3/11

5:30 am-9:47 am

1 stop4h 17m

Denver Intl

Tue 3/17

3:40 pm-10:53 pm

1 stop7h 13m

$238

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Fri 1/23

5:18 pm-3:58 am

1 stop10h 40m

Denver Intl

Sun 1/25

10:37 pm-4:28 pm

1 stop17h 51m

$247

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Wed 3/11

1:10 pm-11:22 pm

2 stops10h 12m

Denver Intl

Wed 3/18

5:30 am-12:32 pm

1 stop7h 02m

$256

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

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Fri 12/12

7:35 pm-6:03 pm

1 stop22h 28m

Denver Intl

Sun 1/11

1:34 pm-7:20 pm

1 stop5h 46m

$275

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Fri 3/13

4:00 pm-10:39 pm

1 stop6h 39m

Denver Intl

Tue 3/17

7:00 am-3:20 pm

1 stop8h 20m

$288

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 typical price of a round-trip flight between Great Falls and Denver?

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 October to fly from Great Falls, when ticket prices are also cheap, with an average price of $279.

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 $558. 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 37% 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
8,997 reviews
Search United Airlines flights
DeltaPriceFrom $213Free CancellationRating
7.9
8,001 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 12 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 $328. 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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