$105 Cheap Flights from Great Falls (GTF) to Denver (DEN)

View $105 flight on Sat, May 9, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at $105 for one-way flights and $195 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Oct 10 - Sun, Oct 12
GTF
Great Falls
DEN
Denver
$195 Roundtrip, found 7 hours ago
$195
Roundtrip
found 7 hours ago
Select United flight, departing Fri, Oct 10 from Great Falls to Denver, returning Sun, Oct 12, priced at $195 found 7 hours ago
Delta
Tue, Oct 14 - Fri, Oct 17
GTF
Great Falls
DEN
Denver
$204 Roundtrip, found 2 days ago
$204
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Oct 14 from Great Falls to Denver, returning Fri, Oct 17, priced at $204 found 2 days ago
United
Fri, Oct 3 - Sun, Oct 5
GTF
Great Falls
DEN
Denver
$205 Roundtrip, found 7 hours ago
$205
Roundtrip
found 7 hours ago
Select United flight, departing Fri, Oct 3 from Great Falls to Denver, returning Sun, Oct 5, priced at $205 found 7 hours ago
Delta
Sat, Nov 1 - Tue, Nov 4
GTF
Great Falls
DEN
Denver
$214 Roundtrip, found 7 hours ago
$214
Roundtrip
found 7 hours ago
Select Delta flight, departing Sat, Nov 1 from Great Falls to Denver, returning Tue, Nov 4, priced at $214 found 7 hours ago
United
Thu, Dec 18 - Sat, Jan 3
GTF
Great Falls
DEN
Denver
$215 Roundtrip, found 2 hours ago
$215
Roundtrip
found 2 hours ago
Select United flight, departing Thu, Dec 18 from Great Falls to Denver, returning Sat, Jan 3, priced at $215 found 2 hours ago
Delta
Mon, Dec 22 - Tue, Jan 6
GTF
Great Falls
DEN
Denver
$219 Roundtrip, found 6 days ago
$219
Roundtrip
found 6 days ago
Select Delta flight, departing Mon, Dec 22 from Great Falls to Denver, returning Tue, Jan 6, priced at $219 found 6 days ago
Delta
Tue, Sep 23 - Fri, Oct 3
GTF
Great Falls
DEN
Denver
$224 Roundtrip, found 7 hours ago
$224
Roundtrip
found 7 hours ago
Select Delta flight, departing Tue, Sep 23 from Great Falls to Denver, returning Fri, Oct 3, priced at $224 found 7 hours ago
Alaska Airlines
Sat, May 9 - Sat, May 16
GTF
Great Falls
DEN
Denver
$226 Roundtrip, found 6 days ago
$226
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Sat, May 9 from Great Falls to Denver, returning Sat, May 16, priced at $226 found 6 days ago
Delta
Sat, Aug 30 - Tue, Sep 16
GTF
Great Falls
DEN
Denver
$234 Roundtrip, found 1 hour ago
$234
Roundtrip
found 1 hour ago
Select Delta flight, departing Sat, Aug 30 from Great Falls to Denver, returning Tue, Sep 16, priced at $234 found 1 hour ago
Hawaiian Airlines
Mon, Dec 8 - Fri, Dec 12
GTF
Great Falls
DEN
Denver
$304 Roundtrip, found 5 days ago
$304
Roundtrip
found 5 days ago
Select Hawaiian Airlines flight, departing Mon, Dec 8 from Great Falls to Denver, returning Fri, Dec 12, priced at $304 found 5 days ago

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

September is typically the cheapest month to fly

From $194 - $561 per traveler.

Graph displaying average flight prices per month

Alternative airports near Denver

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

Select flight to Denver Intl. DEN. Cheapest option available. Average driving time to city center is 32 minutes. Flights from $224
DEN
Denver Intl.
Cheapest
Average driving time to city center32 min
Flights from $224
0
Flights from Great Falls (GTF) to Denver (DEN)
Origin airport
Great Falls Intl.
Destination airport
Denver Intl.
Airlines serving
Alaska Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$194
Distance
623 mi

Great Falls to Denver Flights

The cheapest times to fly from Great Falls to Denver

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 Great Falls to Denver are during the month of October. You can find some of the cheapest flights from Great Falls to Denver with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Great Falls to Denver: 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 Great Falls to Denver

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 Great Falls to Denver in 2025. You can also book with separate airlines for your outbound and return journeys, from $105 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 Great Falls to Denver 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 Great Falls to Denver 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 Great Falls Intl. Airport (GTF) to Denver Intl. Airport (DEN) cost?
Grab a cheap one-way flight from $105 or cheap return flight from $195 from Great Falls Intl. Airport (GTF) to Denver Intl. Airport (DEN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Great Falls Intl. Airport (GTF) to Denver Intl. Airport (DEN)?
The cheapest month to fly from GTF to DEN is October, when there's less demand. Off-peak months are often when you'll find lower airfares between these airports.
Which airlines fly direct from Great Falls Intl. Airport (GTF) to Denver Intl. Airport (DEN)?
Board a nonstop flight with United Airlines and fly straight from Great Falls Intl. Airport (GTF) to Denver Intl. Airport (DEN).
What is the cheapest airline that flies from Great Falls Intl. Airport (GTF) to Denver Intl. Airport (DEN)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll fly you from GTF to DEN. Then, sort your results by "Price (lowest to highest)" to score the best deal available.
How many flights per day from Great Falls Intl. Airport (GTF) to Denver Intl. Airport (DEN)?
When departing from Great Falls Intl. Airport (GTF), you'll have a choice from an average of 2 daily direct flights to Denver Intl. Airport (DEN).
What are the most popular departure times for flights from Great Falls Intl. Airport (GTF) to Denver Intl. Airport (DEN)?
More people fly between GTF and DEN at 2 PM than at any other time. Prefer a quieter experience? Try choosing a quieter departure window and it's possible you'll save on your fare as well.
What day of the week has the most flights from GTF to DEN?
Friday has the most flights from Great Falls Intl. Airport (GTF) to Denver Intl. Airport (DEN). Consider jetting off on this day and you'll have a greater chance of finding a schedule that works for you.
What is the earliest flight from Great Falls Intl. Airport (GTF) to Denver Intl. Airport (DEN)?
Hop on the earliest flight at around 6:45AM UTC-7, leaving from Great Falls Intl. Airport (GTF). You'll be flying for approximately 2h 9m, arriving at Denver Intl. Airport (DEN) at approximately 8:54AM UTC-7.
How long does it take to fly from Great Falls Intl. Airport (GTF) to Denver Intl. Airport (DEN)?
The average flight duration from GTF to DEN is 2 hours and 7 minutes, covering a total distance of 620 mi.
What airline has the least delays from GTF to DEN?
Consider booking with United Airlines if you'd like to go straight from Great Falls Intl. Airport (GTF) to Denver Intl. Airport (DEN) without any holdups. This airline has the best track record for punctuality, with an on-time score of 82%. Want to be updated if anything changes? You can check your flight status using the Expedia App.
What is the best time to fly from Great Falls Intl. Airport (GTF) to Denver Intl. Airport (DEN)?
To avoid potential delays on the Great Falls Intl. Airport (GTF) to Denver Intl. Airport (DEN) route, fly before 3 PM. Later departures are 22% more likely to be canceled.**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 Denver from Great Falls Intl. Airport (GTF)?
Browse your flight options from Great Falls Intl. Airport (GTF) to Denver Intl. Airport (DEN). This is the only airport in Denver you can land at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Great Falls Intl. Airport (GTF) to Denver Intl. Airport (DEN) last-minute?
Booking your plane ticket from GTF to DEN just before your trip is generally more expensive. But if there's some wiggle room with your travel dates and times, you could snag a cheap last-minute fare.
Is it cheaper to book a GTF to DEN flight and hotel package?
You can save money by booking a GTF to DEN 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 chosen your ideal accommodations and flights, you can add extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Great Falls Intl. Airport (GTF) to Denver Intl. Airport (DEN)?
If you reserved your GTF to DEN flight within the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the ticket type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

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