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Cheap flights from Great Falls to Denver from $128

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 7/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Great Falls to Denver

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:15 am - 8:15 am
GTF
-
DEN
2h 00mnonstop
United Airlines Logo
7:38 pm - 9:34 pm
DEN
-
GTF
1h 56mnonstop
$259United Airlines
Thu, Jul 2 - Mon, Jul 6
United Airlines Logo
6:15 am - 8:15 am
GTF
-
DEN
2h 00mnonstop
United Airlines Logo
7:38 pm - 9:34 pm
DEN
-
GTF
1h 56mnonstop
$267United Airlines
Thu, Jul 30 - Sun, Aug 2
United Airlines Logo
6:15 am - 8:15 am
GTF
-
DEN
2h 00mnonstop
United Airlines Logo
7:38 pm - 9:34 pm
DEN
-
GTF
1h 56mnonstop
$271United Airlines
Thu, Jul 2 - Mon, Jul 6
Delta Logo
5:40 am - 9:18 am
GTF
-
DEN
3h 38m
1 stop
Delta Logo
3:55 pm - 10:40 pm
DEN
-
GTF
6h 45m
1 stop
$278Delta
Thu, Jul 2 - Mon, Jul 6
United Airlines Logo
6:15 am - 8:15 am
GTF
-
DEN
2h 00mnonstop
United Airlines Logo
7:15 pm - 9:12 pm
DEN
-
GTF
1h 57mnonstop
$279United Airlines
Tue, Aug 4 - Tue, Aug 11
Delta Logo
5:40 am - 9:36 am
GTF
-
DEN
3h 56m
1 stop
Delta Logo
5:56 pm - 10:42 pm
DEN
-
GTF
4h 46m
1 stop
$288Delta
Mon, Sep 21 - Sat, Sep 26
United Airlines Logo
6:15 am - 8:15 am
GTF
-
DEN
2h 00mnonstop
United Airlines Logo
7:38 pm - 9:34 pm
DEN
-
GTF
1h 56mnonstop
$291United Airlines
Mon, Jul 27 - Mon, Aug 3
Delta Logo
6:25 pm - 10:41 pm
GTF
-
DEN
4h 16m
1 stop
Delta Logo
5:40 am - 12:37 pm
DEN
-
GTF
6h 57m
1 stop
$298Delta
Thu, Jul 2 - Tue, Jul 7
United Airlines Logo
6:15 am - 8:15 am
GTF
-
DEN
2h 00mnonstop
United Airlines Logo
7:38 pm - 9:34 pm
DEN
-
GTF
1h 56mnonstop
$301United Airlines
Mon, Jul 27 - Mon, Aug 3
Alaska Airlines Logo
5:09 pm - 11:59 pm
GTF
-
DEN
6h 50m
1 stop
Alaska Airlines Logo
8:22 am - 4:38 pm
DEN
-
GTF
8h 16m
1 stop
$316Alaska Airlines
Sun, Aug 16 - Wed, Aug 19

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United Airlines flights from Great Falls to Denver

Our best United Airlines deals on Great Falls to Denver flight tickets
United Airlines
Jul 9
GTF6:15 amGreat Falls
2h 00m
DEN8:15 amDenver Intl
Jul 12
DEN7:38 pmDenver Intl
1h 56m
GTF9:34 pmGreat Falls
$259
United Airlines
Jul 30
GTF6:15 amGreat Falls
2h 00m
DEN8:15 amDenver Intl
Aug 2
DEN7:38 pmDenver Intl
1h 56m
GTF9:34 pmGreat Falls
$267
United Airlines
Aug 4
GTF6:15 amGreat Falls
2h 00m
DEN8:15 amDenver Intl
Aug 11
DEN7:15 pmDenver Intl
1h 57m
GTF9:12 pmGreat Falls
$279

Delta flights from Great Falls to Denver

Our best Delta deals on Great Falls to Denver flight tickets
Delta
Sep 18
GTF6:21 pmGreat Falls
4h 10m
1 stop
DEN10:31 pmDenver Intl
Sep 20
DEN5:30 amDenver Intl
7h 05m
1 stop
GTF12:35 pmGreat Falls
$278
Delta
Jul 2
GTF6:25 pmGreat Falls
4h 16m
1 stop
DEN10:41 pmDenver Intl
Jul 7
DEN5:40 amDenver Intl
6h 57m
1 stop
GTF12:37 pmGreat Falls
$298
Delta
Aug 8
GTF1:08 pmGreat Falls
6h 53m
1 stop
DEN8:01 pmDenver Intl
Aug 12
DEN12:54 pmDenver Intl
4h 48m
1 stop
GTF5:42 pmGreat Falls
$333

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 June 14, 2026.
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

Cheapest round-trip
Quickest round-trip

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Thu 7/2

6:15 am-8:15 am

Nonstop2h 00m

Denver Intl

Mon 7/6

7:38 pm-9:34 pm

Nonstop1h 56m

$259

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Thu 7/30

6:15 am-8:15 am

Nonstop2h 00m

Denver Intl

Sun 8/2

7:38 pm-9:34 pm

Nonstop1h 56m

$267

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Thu 7/2

6:15 am-8:15 am

Nonstop2h 00m

Denver Intl

Mon 7/6

7:38 pm-9:34 pm

Nonstop1h 56m

$271

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Thu 7/2

5:40 am-9:18 am

1 stop3h 38m

Denver Intl

Mon 7/6

3:55 pm-10:40 pm

1 stop6h 45m

$278

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Tue 8/4

6:15 am-8:15 am

Nonstop2h 00m

Denver Intl

Tue 8/11

7:15 pm-9:12 pm

Nonstop1h 57m

$279

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Mon 9/21

5:40 am-9:36 am

1 stop3h 56m

Denver Intl

Sat 9/26

5:56 pm-10:42 pm

1 stop4h 46m

$288

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Mon 7/27

6:15 am-8:15 am

Nonstop2h 00m

Denver Intl

Mon 8/3

7:38 pm-9:34 pm

Nonstop1h 56m

$291

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Thu 7/2

6:25 pm-10:41 pm

1 stop4h 16m

Denver Intl

Tue 7/7

5:40 am-12:37 pm

1 stop6h 57m

$298

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Mon 7/27

6:15 am-8:15 am

Nonstop2h 00m

Denver Intl

Mon 8/3

7:38 pm-9:34 pm

Nonstop1h 56m

$301

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Sun 8/16

5:09 pm-11:59 pm

1 stop6h 50m

Denver Intl

Wed 8/19

8:22 am-4:38 pm

1 stop8h 16m

$316

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 March. Flight prices, which tend to average around $199, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in March, then you should wait until November to fly from Great Falls, when ticket prices are also cheap, with an average price of $253.

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 Tuesday when prices can be found for as low as $509. 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 $657.

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

The cheapest time of day to fly to Denver is at noon when flights can be purchased for as low as $528. Flights in the morning are often more expensive with an average ticket price of $573.

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 flights?

There are 4 cabin classes available to choose from on Great Falls to Denver 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 34% 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?

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

$333

Fastest flight time

2h 00m

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 $333. The best round-trip flight deal from Great Falls to Denver found on momondo in the last 72 hours is $463.
The fastest flight from Great Falls to Denver takes 2h 00m
Direct flights go from Great Falls to Denver every day.
There is 1 airport in Denver. From Great Falls there are direct flights to Denver Intl (DEN).
Search flight deals

Frequently asked questions about flying from Great Falls to Denver

  • 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 2h 00m, 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 $198Free CancellationRating
7.4
9,818 reviews
Search United Airlines flights
DeltaPriceFrom $218Free CancellationRating
7.9
8,403 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 13 flights/week on average for this route. A good United Airlines flight deal for Great Falls to Denver starts from $198 round-trip, up to an average price of $301. 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
Manitou Springs
Boulder
Longmont
Greeley
Westminster
Lakewood
Keystone
Cripple Creek
Thornton
Englewood
Centennial
Frisco
Littleton
Winter Park
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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