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$104+ Cheap flights from Great Falls to Denver (GTF - DEN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — DEN
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap 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 September 17, 2025.

Round-trip from

$209
(United Airlines)

One-way from

$104
(Delta)

Popular in

December

Cheapest in

February

Average price

$338

Good round-trip deal

$436 or less

Good one-way deal

$306 or less
From Great Falls to Denver Intl
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One-way flight from Great Falls to Denver Intl
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Highest demand for flights based on searches. 13% potential increase in price ($50 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Great Falls to Denver Intl.
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Price to beat on a one-way flight from Great Falls to Denver Intl.
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Find 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 September 17, 2025.

This United Airlines deal was found by Cheapflights users on 9/15. 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 10/22:31 pmGTF - DEN
Nonstop1h 58mUnited Airlines
Wed 10/87:15 pmDEN - GTF
Nonstop1h 56mUnited Airlines
Deal found 9/15$209
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Mon 9/292:31 pmGTF - DEN
Nonstop1h 58mUnited Airlines
Sat 10/47:15 pmDEN - GTF
Nonstop1h 56mUnited Airlines
Deal found 9/15$219
This Delta deal was found by Cheapflights users on 9/15. 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 9/296:11 pmGTF - DEN
1 stop4h 33mDelta
Sat 10/412:55 pmDEN - GTF
1 stop4h 32mDelta
Deal found 9/15$238
This United Airlines deal was found by Cheapflights users on 9/17. 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 12/252:35 pmGTF - DEN
Nonstop2h 03mUnited Airlines
Wed 12/3111:34 amDEN - GTF
Nonstop2h 05mUnited Airlines
Deal found 9/17$239
This Delta deal was found by Cheapflights users on 9/16. 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.
Thu 10/26:11 pmGTF - DEN
1 stop4h 33mDelta
Tue 10/76:23 pmDEN - GTF
1 stop4h 43mDelta
Deal found 9/16$258
This Delta deal was found by Cheapflights users on 9/15. 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.
Thu 10/26:11 pmGTF - DEN
1 stop4h 33mDelta
Wed 10/811:59 amDEN - GTF
1 stop5h 30mDelta
Deal found 9/15$268
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/117:00 amGTF - DEN
Nonstop1h 55mUnited Airlines
Thu 10/167:15 pmDEN - GTF
Nonstop1h 56mUnited Airlines
Deal found 9/15$269
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2710:22 pmGTF - DEN
1 stop12h 48mMultiple Airlines
Mon 11/37:00 amDEN - GTF
1 stop13h 32mMultiple Airlines
Deal found 9/17$271
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/294:55 pmGTF - DEN
1 stop11h 05mMultiple Airlines
Thu 10/24:01 pmDEN - GTF
2 stops29h 36mMultiple Airlines
Deal found 9/15$282
This Delta deal was found by Cheapflights users on 9/16. 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.
Wed 10/295:30 amGTF - DEN
1 stop3h 59mDelta
Mon 11/36:23 pmDEN - GTF
1 stop4h 43mDelta
Deal found 9/16$288
This Delta deal was found by Cheapflights users on 9/17. 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.
Thu 10/26:11 pmGTF - DEN
1 stop4h 33mDelta
Mon 10/66:23 pmDEN - GTF
1 stop4h 43mDelta
Deal found 9/17$298
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/292:30 pmGTF - DEN
Nonstop2h 01mUnited Airlines
Tue 11/48:30 pmDEN - GTF
Nonstop2h 09mUnited Airlines
Deal found 9/17$299

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 September 17, 2025.
Use the filters below to find and compare flights from Great Falls to Denver that are best for you.

Fly from

Great Falls

Fly to

Denver

Route

Depart

Return

Price

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Tue 10/7

7:00 am-8:55 am

Nonstop1h 55m

Denver Intl

Wed 10/15

7:15 pm-9:11 pm

Nonstop1h 56m

$209

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Thu 10/2

2:31 pm-4:29 pm

Nonstop1h 58m

Denver Intl

Wed 10/8

7:15 pm-9:11 pm

Nonstop1h 56m

$209

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Mon 9/29

6:11 pm-10:44 pm

1 stop4h 33m

Denver Intl

Thu 10/2

12:55 pm-5:27 pm

1 stop4h 32m

$238

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Thu 10/2

6:11 pm-10:44 pm

1 stop4h 33m

Denver Intl

Sat 10/4

5:45 am-12:25 pm

1 stop6h 40m

$238

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Mon 9/29

6:11 pm-10:44 pm

1 stop4h 33m

Denver Intl

Sat 10/4

12:55 pm-5:27 pm

1 stop4h 32m

$238

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Thu 11/27

6:20 am-8:22 am

Nonstop2h 02m

Denver Intl

Sat 11/29

11:31 am-1:33 pm

Nonstop2h 02m

$239

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Sat 10/11

7:00 am-8:55 am

Nonstop1h 55m

Denver Intl

Thu 10/16

7:15 pm-9:11 pm

Nonstop1h 56m

$269

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Mon 10/27

10:22 pm-11:10 am

1 stop12h 48m

Denver Intl

Mon 11/3

7:00 am-8:32 pm

1 stop13h 32m

$271

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Wed 10/29

5:30 am-9:29 am

1 stop3h 59m

Denver Intl

Mon 11/3

6:23 pm-11:06 pm

1 stop4h 43m

$288

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Wed 10/29

5:30 am-9:29 am

1 stop3h 59m

Denver Intl

Tue 11/4

7:00 am-12:28 pm

1 stop5h 28m

$288

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 22 results
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2
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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, October is the cheapest month in which you can book a flight from Great Falls to Denver (average of $197). Flying from Great Falls to Denver in March is currently the most expensive (average of $278). 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 September 17, 2025.

It’s optimal to fly from Great Falls to Denver in the afternoon. By choosing this option you can save up to 57% on the cost of your flight, compared to a flight in the morning.

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 September 17, 2025.
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
8.0
Very good
7,961 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,926 reviews
Delta
8.0
Very good
7,961 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 are 2 flights from Great Falls to Denver Intl, all of which are around 1h 55m 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, 14 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 1h 55m. Your travel time can differ by up to 2h 38m. 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 $213, Delta will fly you from Great Falls to Denver and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $214. 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 $552, our data indicates the cheapest price to be $147. The most popular route (Great Falls - Denver Intl), is priced around $199.

  • 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, October is the cheapest month in which you can book a flight from Great Falls to Denver (average of $197). Flying from Great Falls to Denver in March is currently the most expensive (average of $278). 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
Black Hawk
Westminster
Golden
Winter Park
Lakewood
Broomfield
Greeley
Lone Tree
Cripple Creek
Thornton
Silverthorne
Manitou Springs
Fort Morgan
Glendale
Wheat Ridge
Brighton
Longmont
Idaho Springs
Parker
Sterling

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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$213Average$268FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$214Average$352FlexibilityNo cancel feeOn-time69%

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