$109 Cheap Flights from Denver (DEN) to Great Falls (GTF)

View $109 flight on Tue, Sep 23, 2025Opens in a new window

Popular airlines from Denver Intl. Airport (DEN) to Great Falls, MT (GTF-Great Falls Intl.)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Denver to Great Falls (DEN-GTF)

Prices were available within the past 7 days and start at $109 for one-way flights and $195 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Sep 4 - Sun, Sep 7
DEN
Denver
GTF
Great Falls
$195 Roundtrip, found 13 hours ago
$195
Roundtrip
found 13 hours ago
Select United flight, departing Thu, Sep 4 from Denver to Great Falls, returning Sun, Sep 7, priced at $195 found 13 hours ago
United
Thu, Sep 4 - Sun, Sep 7
DEN
Denver
GTF
Great Falls
$205 Roundtrip, found 13 hours ago
$205
Roundtrip
found 13 hours ago
Select United flight, departing Thu, Sep 4 from Denver to Great Falls, returning Sun, Sep 7, priced at $205 found 13 hours ago
Hawaiian Airlines
Wed, Feb 18 - Sat, Feb 28
DEN
Denver
GTF
Great Falls
$214 Roundtrip, found 2 days ago
$214
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Wed, Feb 18 from Denver to Great Falls, returning Sat, Feb 28, priced at $214 found 2 days ago
Delta
Wed, Aug 27 - Sun, Aug 31
DEN
Denver
GTF
Great Falls
$214 Roundtrip, found 9 hours ago
$214
Roundtrip
found 9 hours ago
Select Delta flight, departing Wed, Aug 27 from Denver to Great Falls, returning Sun, Aug 31, priced at $214 found 9 hours ago
United
Tue, Sep 16 - Tue, Sep 23
DEN
Denver
GTF
Great Falls
$215 Roundtrip, found 5 days ago
$215
Roundtrip
found 5 days ago
Select United flight, departing Tue, Sep 16 from Denver to Great Falls, returning Tue, Sep 23, priced at $215 found 5 days ago
Delta
Wed, Sep 3 - Tue, Sep 9
DEN
Denver
GTF
Great Falls
$224 Roundtrip, found 13 hours ago
$224
Roundtrip
found 13 hours ago
Select Delta flight, departing Wed, Sep 3 from Denver to Great Falls, returning Tue, Sep 9, priced at $224 found 13 hours ago
Delta
Fri, Sep 5 - Tue, Sep 9
DEN
Denver
GTF
Great Falls
$234 Roundtrip, found 9 hours ago
$234
Roundtrip
found 9 hours ago
Select Delta flight, departing Fri, Sep 5 from Denver to Great Falls, returning Tue, Sep 9, priced at $234 found 9 hours ago
United
Thu, Sep 4 - Sun, Sep 7
DEN
Denver
GTF
Great Falls
$235 Roundtrip, found 13 hours ago
$235
Roundtrip
found 13 hours ago
Select United flight, departing Thu, Sep 4 from Denver to Great Falls, returning Sun, Sep 7, priced at $235 found 13 hours ago
United
Thu, Sep 4 - Sun, Sep 7
DEN
Denver
GTF
Great Falls
$245 Roundtrip, found 13 hours ago
$245
Roundtrip
found 13 hours ago
Select United flight, departing Thu, Sep 4 from Denver to Great Falls, returning Sun, Sep 7, priced at $245 found 13 hours ago
Alaska Airlines
Thu, Dec 4 - Mon, Dec 8
DEN
Denver
GTF
Great Falls
$304 Roundtrip, found 9 hours ago
$304
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Thu, Dec 4 from Denver to Great Falls, returning Mon, Dec 8, priced at $304 found 9 hours ago

Find the cheapest month to fly from Denver (DEN) to Great Falls (GTF)

October is typically the cheapest month to fly

From $194 - $573 per traveler.

Graph displaying average flight prices per month

Alternative airports near Great Falls

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Great Falls Intl. GTF. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $224
GTF
Great Falls Intl.
CheapestClosest
Average driving time to city center8 min
Flights from $224
Flights from Denver (DEN) to Great Falls (GTF)
Origin airport
Denver Intl.
Destination airport
Great Falls Intl.
Airlines serving
Alaska Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$194
Distance
623 mi
Average flight time
1 hour 55 mins

Denver to Great Falls Flights

The cheapest times to fly from Denver to Great Falls

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Denver to Great Falls are during the month of September. You can find some of the cheapest flights from Denver to Great Falls with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Denver to Great Falls

Sunday is one of the best days to book for cheap flights from Denver to Great Falls: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Denver to Great Falls

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Denver to Great Falls in 2025. You can also book with separate airlines for your outbound and return journeys, from $109 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Denver to Great Falls flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Denver to Great Falls airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Denver Intl. Airport (DEN) to Great Falls Intl. Airport (GTF) cost?
Cheap round-trip fares from Denver Intl. Airport (DEN) to Great Falls Intl. Airport (GTF) start from $195. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a United flight leaving DEN on August 14 2025 and touching down at GTF. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from DEN to GTF?
The cheapest flights from DEN to GTF are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Denver Intl. Airport (DEN) to Great Falls Intl. Airport (GTF)?
When departing from Denver Intl. Airport (DEN), you can jump on a nonstop flight to Great Falls Intl. Airport (GTF) with United Airlines.
What is the cheapest airline that flies from DEN to GTF?
Jet off from DEN to GTF with United. This airline currently has the cheapest one-way fare on this route, starting at $219. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from DEN on September 21 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Denver Intl. Airport (DEN) to Great Falls Intl. Airport (GTF)?
When jetting out of Denver Intl. Airport (DEN), you can pick from an average of 2 daily nonstop flights to Great Falls Intl. Airport (GTF).
What are the most popular departure times for flights from Denver Intl. Airport (DEN) to Great Falls Intl. Airport (GTF)?
The 11 AM departures from DEN to GTF are the top choice for many travelers. Greater demand means you'll likely pay more for these departures. If you're hoping to save money, pick a less crowded time to fly.
What day of the week has the most flights from DEN to GTF?
Fly on a Monday if you're after the largest selection of flights from Denver Intl. Airport (DEN) to Great Falls Intl. Airport (GTF).
What is the earliest flight from Denver Intl. Airport (DEN) to Great Falls Intl. Airport (GTF)?
The first flight of the day taking off from Denver Intl. Airport (DEN) is at around 11:20AM UTC-7. Hop on this flight and you'll touch down at Great Falls Intl. Airport (GTF) at approximately 1:31PM UTC-7. The total flight duration is 2h 11m.
How long does it take to fly from Denver Intl. Airport (DEN) to Great Falls Intl. Airport (GTF)?
The average flight time from DEN to GTF is 2 hours and 11 minutes, covering a total distance of 620 mi.
What airline has the least delays from DEN to GTF?
With 82% of flights generally landing on schedule, United Airlines has the best on-time performance for nonstop flights from Denver Intl. Airport (DEN) to Great Falls Intl. Airport (GTF). To check your flight status and get notifications about any changes, use the Expedia App.
What is the best time to fly from Denver Intl. Airport (DEN) to Great Falls Intl. Airport (GTF)?
To reach Great Falls Intl. Airport (GTF) on time, choose a flight that leaves Denver Intl. Airport (DEN) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Great Falls from Denver Intl. Airport (DEN)?
Great Falls Intl. Airport (GTF) is the only airport in Great Falls with direct flights from Denver Intl. Airport (DEN). Check out the options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Denver Intl. Airport (DEN) to Great Falls Intl. Airport (GTF) last-minute?
Last-minute bookings from DEN to GTF are typically more expensive. To lock in the best rates, start searching for flights as early as possible. That said, if you're flexible with your travel plans, you may land a cheap fare right before your trip.
Is it cheaper to book a DEN to GTF flight and hotel package?
You can save money by booking a DEN to GTF flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. Once you've selected your preferred accommodations and flights, you can add extras such as tours, car rentals and activities.
Can I cancel or change the date of my flight from Denver Intl. Airport (DEN) to Great Falls Intl. Airport (GTF)?
In most cases, you can reschedule or cancel your DEN to GTF flight. However, there may be additional charges, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you'd like further details, head to our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.