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$259+ Cheap flights from Great Falls to Denver (GTF - DEN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — DEN
Aug 11 — Aug 181
Tue 8/11
Tue 8/18
1 adult, Economy
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Cheap flight deals from Great Falls to Denver

Cheapest flights from Great Falls to Denver
Explore the most affordable flight options available from Great Falls to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 12, 2026.

This United Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:15 am
GTF
-
DEN
Nonstop2h 01m
United Airlines
Sun 9/137:15 pm
DEN
-
GTF
Nonstop1h 57m
United Airlines
Deal found 7/7$259
This United Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/306:15 am
GTF
-
DEN
Nonstop2h 00m
United Airlines
Sun 8/27:38 pm
DEN
-
GTF
Nonstop1h 56m
United Airlines
Deal found 7/8$267
This United Airlines deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:15 am
GTF
-
DEN
Nonstop2h 00m
United Airlines
Thu 8/207:15 pm
DEN
-
GTF
Nonstop1h 57m
United Airlines
Deal found 7/11$268
This Delta deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:20 pm
GTF
-
DEN
1 stop4h 13m
Delta
Sat 11/287:05 am
DEN
-
GTF
1 stop5h 22m
Delta
Deal found 7/8$278
This United Airlines deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/252:37 pm
GTF
-
DEN
Nonstop2h 03m
United Airlines
Mon 9/287:25 pm
DEN
-
GTF
Nonstop1h 57m
United Airlines
Deal found 7/11$289
This United Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:15 am
GTF
-
DEN
Nonstop2h 01m
United Airlines
Mon 8/177:15 pm
DEN
-
GTF
Nonstop1h 57m
United Airlines
Deal found 7/8$291
This Delta deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/76:18 pm
GTF
-
DEN
1 stop4h 37m
Delta
Thu 8/206:28 pm
DEN
-
GTF
1 stop4h 10m
Delta
Deal found 7/11$298
This United Airlines deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/246:15 am
GTF
-
DEN
Nonstop2h 00m
United Airlines
Sun 7/267:38 pm
DEN
-
GTF
Nonstop1h 56m
United Airlines
Deal found 7/10$309
This United Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/56:15 am
GTF
-
DEN
Nonstop2h 00m
United Airlines
Wed 8/127:15 pm
DEN
-
GTF
Nonstop1h 57m
United Airlines
Deal found 7/8$314
This United Airlines deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/246:15 am
GTF
-
DEN
Nonstop2h 00m
United Airlines
Mon 7/277:38 pm
DEN
-
GTF
Nonstop1h 56m
United Airlines
Deal found 7/10$315
This Delta deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/85:40 am
GTF
-
DEN
1 stop3h 34m
Delta
Wed 8/125:35 am
DEN
-
GTF
1 stop6h 53m
Delta
Deal found 7/7$318

Find flight deals from Great Falls to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Great Falls (GTF) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$259
(United Airlines)

One-way from

$174
(Priceline)

Popular in

February

Cheapest in

March

Average price

$338

Good round-trip deal

$413 or less

Good one-way deal

$414 or less
Provider with most accurate pricing for Great Falls-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Great Falls-Denver Intl flights.
Search Deals
From Great Falls to Denver Intl
Search Deals
One-way flight from Great Falls to Denver Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Great Falls to Denver Intl.
Search Deals
Price to beat on a one-way flight from Great Falls to Denver Intl.
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated July 12, 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

Thu 9/10

6:15 am-8:16 am

Nonstop2h 01m

Denver Intl

Sun 9/13

7:15 pm-9:12 pm

Nonstop1h 57m

$259
Quickest round-trip

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

Sat 10/17

1:13 pm-5:00 pm

1 stop3h 47m

Denver Intl

Wed 10/21

5:30 am-12:33 pm

1 stop7h 03m

$278

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Sat 12/5

1:10 pm-7:10 pm

1 stop6h 00m

Denver Intl

Mon 12/7

6:25 pm-10:53 pm

1 stop4h 28m

$278

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Wed 8/26

6:18 pm-10:55 pm

1 stop4h 37m

Denver Intl

Mon 8/31

6:28 pm-10:29 pm

1 stop4h 01m

$278

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Wed 10/14

6:18 pm-10:42 pm

1 stop4h 24m

Denver Intl

Sat 10/17

10:45 am-5:42 pm

1 stop6h 57m

$333

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Sat 9/5

6:15 am-8:16 am

Nonstop2h 01m

Denver Intl

Wed 9/9

7:15 pm-9:12 pm

Nonstop1h 57m

$339

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Fri 8/28

2:25 pm-4:28 pm

Nonstop2h 03m

Denver Intl

Sun 8/30

7:15 pm-9:12 pm

Nonstop1h 57m

$339

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Sat 9/26

5:19 pm-11:19 pm

1 stop6h 00m

Denver Intl

Wed 9/30

8:22 am-4:39 pm

1 stop8h 17m

$350

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Sat 8/8

1:08 pm-8:01 pm

1 stop6h 53m

Denver Intl

Wed 8/12

3:56 pm-10:38 pm

1 stop6h 42m

$353

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/11

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

Compare providers for flights from Great Falls to Denver

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Great Falls to Denver in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Great Falls-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Great Falls-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Great Falls-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Great Falls-Denver flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Great Falls-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Great Falls to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Great Falls with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Great Falls to Denver

What is the cheapest month to book a flight from Great Falls to Denver?

Currently, March is the cheapest month in which you can book a flight from Great Falls to Denver (average of $199). Flying from Great Falls to Denver in February is currently the most expensive (average of $437). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from GTF to DEN?

Find hourly flight availability from Great Falls to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 12, 2026.

When flying from Great Falls to Denver, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Great Falls to Denver?

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denver. Reviews last updated July 12, 2026.
Read through reviews of airlines operating flights from Great Falls to Denver, such as Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,458 reviews

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Comfort

7.8

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.8
Good
8,458 reviews
Delta
7.8
Good
8,458 reviews

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Comfort

7.8

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
9,980 reviews
Delta
7.8
Good
8,458 reviews

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Comfort

7.8

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Related info for your journey

Find useful and relevant information for your journey from Great Falls to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Great Falls to Denver?

    Booking a flight from Great Falls (GTF) to Denver Intl (DEN) is your only option if you wish to fly from Great Falls to Denver. On a typical day, there is 1 flight from Great Falls to Denver Intl, all of which are around 1h 48m for a nonstop flight. You can also purchase a plane ticket from 2 airlines when you book a flight from Great Falls to Denver.

  • How popular is this Great Falls to Denver flight route?

    Within the past month, 24 users have taken a look at flights from Great Falls to Denver Intl.

  • How long is the flight from Great Falls to Denver?

    United Airlines and Delta can get you from Great Falls to Denver in just under 2h 01m. Your travel time can differ by up to 2h 12m. The distance from Great Falls to Denver is about 623 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Great Falls to Denver round-trip?

    Currently priced at $198, United Airlines will fly you from Great Falls to Denver and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Delta for as low as $213. These flights start at 35% lower than the current average price 3 months from now.

  • What are the cheapest flights from Great Falls to Denver?

    Looking for the cheapest flight from Great Falls to Denver? While on average our users pay $518, our data indicates the cheapest price to be $259. The most popular route (Great Falls - Denver Intl), is priced around $259.

  • Can I find deals for flights from Great Falls to Denver that include hotel bookings?

    Yes. In addition to deals on Great Falls to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Great Falls to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Great Falls to Denver.

  • Can I find deals for business class flights from Great Falls to Denver?

    Yes. Cheapflights offers flight deals from Great Falls to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Great Falls to Denver?

    Currently, March is the cheapest month in which you can book a flight from Great Falls to Denver (average of $199). Flying from Great Falls to Denver in February is currently the most expensive (average of $437). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Thornton
Black Hawk
Westminster
Centennial
Lakewood
Broomfield
Golden
Greeley
Lone Tree
Wheat Ridge
Silverthorne
Central City
Fort Morgan
Cripple Creek
Winter Park
Manitou Springs
Frisco
Englewood
Glendale
Evergreen

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Great Falls to Denver

Discover the top 2 airlines that operate flights from Great Falls to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$198Average$311FlexibilityNo cancel feeOn-time69%
DeltaCheapest$213Average$263FlexibilityNo cancel feeOn-timeN/A

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