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Cheap flights from Great Falls to Denver from $101

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 4/20. 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
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:19 pm - 10:40 pm
GTF
-
DEN
4h 21m
1 stop
Delta Logo
5:30 am - 12:27 pm
DEN
-
GTF
6h 57m
1 stop
$256Delta
Fri, May 15 - Wed, May 20
United Airlines Logo
2:35 pm - 4:41 pm
GTF
-
DEN
2h 06mnonstop
United Airlines Logo
7:38 pm - 9:34 pm
DEN
-
GTF
1h 56mnonstop
$259United Airlines
Mon, May 18 - Thu, May 28
Delta Logo
6:19 pm - 10:40 pm
GTF
-
DEN
4h 21m
1 stop
Delta Logo
6:19 pm - 10:26 pm
DEN
-
GTF
4h 07m
1 stop
$278Delta
Fri, May 15 - Wed, May 20
United Airlines Logo
6:15 am - 8:21 am
GTF
-
DEN
2h 06mnonstop
United Airlines Logo
7:15 pm - 9:18 pm
DEN
-
GTF
2h 03mnonstop
$279United Airlines
Thu, May 14 - Mon, May 18
Multiple Airlines Logo
11:42 am - 3:59 am
GTF
-
DEN
16h 17m
1 stop
Multiple Airlines Logo
9:08 am - 10:52 am
DEN
-
GTF
25h 44m
2 stops
$295Multiple Airlines
Mon, Apr 27 - Thu, Apr 30
Delta Logo
6:22 pm - 10:31 pm
GTF
-
DEN
4h 09m
1 stop
Delta Logo
5:30 am - 12:24 pm
DEN
-
GTF
6h 54m
1 stop
$298Delta
Fri, Apr 3 - Sat, Apr 11
United Airlines Logo
2:30 pm - 4:36 pm
GTF
-
DEN
2h 06mnonstop
United Airlines Logo
11:32 am - 1:31 pm
DEN
-
GTF
1h 59mnonstop
$299United Airlines
Sat, Apr 4 - Tue, Apr 7
Delta Logo
5:30 am - 9:13 am
GTF
-
DEN
3h 43m
1 stop
Delta Logo
7:55 am - 12:27 pm
DEN
-
GTF
4h 32m
1 stop
$303Delta
Sat, May 2 - Sat, May 9
Multiple Airlines Logo
11:42 am - 3:59 am
GTF
-
DEN
16h 17m
1 stop
Multiple Airlines Logo
6:30 am - 8:41 pm
DEN
-
GTF
14h 11m
1 stop
$304Multiple Airlines
Mon, Apr 27 - Thu, Apr 30
Delta Logo
6:22 pm - 10:31 pm
GTF
-
DEN
4h 09m
1 stop
Delta Logo
5:30 am - 12:24 pm
DEN
-
GTF
6h 54m
1 stop
$318Delta
Fri, Apr 3 - Thu, Apr 9

Alaska Airlines flights from Great Falls to Denver

Our best Alaska Airlines deals on Great Falls to Denver flight tickets
Alaska Airlines
Aug 16
GTF5:03 pmGreat Falls
6h 56m
1 stop
DEN11:59 pmDenver Intl
Sep 1
DEN8:00 amDenver Intl
8h 13m
1 stop
GTF4:13 pmGreat Falls
$383
Alaska Airlines
Apr 7
GTF5:06 pmGreat Falls
6h 50m
1 stop
DEN11:56 pmDenver Intl
Apr 10
DEN6:03 pmDenver Intl
22h 23m
2 stops
GTF4:26 pmGreat Falls
$391
Alaska Airlines
Apr 18
GTF5:06 pmGreat Falls
6h 50m
1 stop
DEN11:56 pmDenver Intl
Apr 22
DEN11:50 amDenver Intl
5h 45m
1 stop
GTF5:35 pmGreat Falls
$428

United Airlines flights from Great Falls to Denver

Our best United Airlines deals on Great Falls to Denver flight tickets
United Airlines
Sep 10
GTF2:31 pmGreat Falls
2h 03m
DEN4:34 pmDenver Intl
Sep 15
DEN7:32 pmDenver Intl
1h 56m
GTF9:28 pmGreat Falls
$259
United Airlines
May 14
GTF6:15 amGreat Falls
2h 06m
DEN8:21 amDenver Intl
May 18
DEN7:15 pmDenver Intl
2h 03m
GTF9:18 pmGreat Falls
$279
United Airlines
Apr 4
GTF2:30 pmGreat Falls
2h 06m
DEN4:36 pmDenver Intl
Apr 7
DEN11:32 amDenver Intl
1h 59m
GTF1:31 pmGreat Falls
$299

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 March 23, 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

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Fri 5/15

6:19 pm-10:40 pm

1 stop4h 21m

Denver Intl

Wed 5/20

5:30 am-12:27 pm

1 stop6h 57m

$256
Quickest round-trip

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Mon 5/18

2:35 pm-4:41 pm

Nonstop2h 06m

Denver Intl

Thu 5/28

7:38 pm-9:34 pm

Nonstop1h 56m

$259

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Fri 5/15

6:19 pm-10:40 pm

1 stop4h 21m

Denver Intl

Wed 5/20

6:19 pm-10:26 pm

1 stop4h 07m

$278

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Thu 5/14

6:15 am-8:21 am

Nonstop2h 06m

Denver Intl

Mon 5/18

7:15 pm-9:18 pm

Nonstop2h 03m

$279

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Mon 4/27

11:42 am-3:59 am

1 stop16h 17m

Denver Intl

Thu 4/30

9:08 am-10:52 am

2 stops25h 44m

$295

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Fri 4/3

6:22 pm-10:31 pm

1 stop4h 09m

Denver Intl

Sat 4/11

5:30 am-12:24 pm

1 stop6h 54m

$298

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Sat 4/4

2:30 pm-4:36 pm

Nonstop2h 06m

Denver Intl

Tue 4/7

11:32 am-1:31 pm

Nonstop1h 59m

$299

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Sat 5/2

5:30 am-9:13 am

1 stop3h 43m

Denver Intl

Sat 5/9

7:55 am-12:27 pm

1 stop4h 32m

$303

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Mon 4/27

11:42 am-3:59 am

1 stop16h 17m

Denver Intl

Thu 4/30

6:30 am-8:41 pm

1 stop14h 11m

$304

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Fri 4/3

6:22 pm-10:31 pm

1 stop4h 09m

Denver Intl

Thu 4/9

5:30 am-12:24 pm

1 stop6h 54m

$318

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 March. Flight prices, which tend to average around $243, 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 Wednesday when prices can be found for as low as $489. 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 $656.

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 $522. Flights in the morning are often more expensive with an average ticket price of $596.

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 18% 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

$247

Fastest flight time

2h 00m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun

Airports in Denver

1 airport
The best one-way flight to Denver from Great Falls in the past 72 hours is $247. The best round-trip flight deal from Great Falls to Denver found on momondo in the last 72 hours is $354.
The fastest flight from Great Falls to Denver takes 2h 00m
Direct flights go from Great Falls to Denver on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There is 1 airport in Denver. From Great Falls there are direct flights to 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 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
9,462 reviews
Search United Airlines flights
DeltaPriceFrom $218Free CancellationRating
7.9
8,319 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 $198 round-trip, up to an average price of $289. 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
Longmont
Boulder
Greeley
Cripple Creek
Keystone
Lakewood
Westminster
Thornton
Frisco
Winter Park
Grand Lake
Centennial
Englewood
Copper Mountain

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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