188 € Cheap Flights from Great Falls International to Denver International

Compare Great Falls International to Denver International flight deals

Find the cheapest month or even day of the year to fly to Denver International

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Flight deals from Great Falls International Airport to Denver International Airport

Looking for a cheap last-minute deal or the best return flight from Great Falls International Airport to Denver International Airport? If you want to travel next month, return fares start from 188 €. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Great Falls International to Denver International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Great Falls International to Denver International flights are currently cheapest in April.

Direct flights from Great Falls International to Denver International

Great Falls International to Denver International: Alternative routes

Compare routes from Great Falls International to Denver below. You may find an airport to fly into that's cheaper, faster, or easier than Denver International.

Great Falls to Denver: Flight information

The things to know before you go.
Cheapest flight found188 €
Cheapest month to flyApril
Average flight time1 hr, 59 mins
Most popular airlineUnited
Average flights per week23

Finding cheap flights from Great Falls International to Denver International: Frequently asked questions

The best price we found for a return flight from Great Falls International to Denver International is 188 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 59 minutes is the average flight time from Great Falls International to Denver International.
United and SkyWest Airlines fly direct from Great Falls International to Denver International.
As of March 2026, there are 23 flights per week flying from Great Falls International to Denver International.
The cheapest month to fly from Great Falls International to Denver International is usually April.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Great Falls International Airport to Denver International Airport on Sunday, 12 April 2026.
Yes – the average flight time is 1 hour and 59 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Denver International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Denver is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, United offers the cheapest flight tickets to Denver International.

Flying from Great Falls International Airport (GTF) to Denver International Airport (DEN): what you need to know

  • The average length of a direct flight from Great Falls International Airport to Denver International Airport is 2 hours.

  • Great Falls and Denver are in the same timezone, UTC-6.

  • Every week, there are 20 Great Falls International Airport to Denver International Airport flights. If you want to get going as soon as possible, go for the 06:45 United Airlines flight. If you're eager to make the most of your day before flying, the latest flight is at 14:30 with United Airlines.

  • To ensure you catch your GTF to DEN flight, allow plenty of time to check in and find your gate. Arriving two hours ahead of international departures and one hour before domestic flights is the standard rule.

  • Flying during a peak month like August? Public holidays and other popular seasons can mean longer queues at airport checkpoints. Play it safe and get there up to four hours before international flights and two hours before domestic departures.

  • United Airlines is your gateway to discovering Denver (and perhaps some other exciting parts of United States!). Check out the direct flights from Great Falls International Airport to Denver International Airport offered by this popular carrier.

  • United Airlines is the airline with the highest passenger demand for this route.

  • With a dependable 83.47% of services landing on schedule, United Airlines has the best on-time performance for GTF to DEN flights.

  • We make it a piece of cake to book a flight with a stopover. To see all your options for tickets from Great Falls International Airport to Denver International Airport, uncheck 'Direct flights only.' Then, pick a flight offering a stop long enough to explore the city of your choice. Popular stopovers between GTF and DEN include:

    • Salt Lake City International Airport

    • Harry Reid Airport (formerly McCarran Airport)

    • Minneapolis-St. Paul International Airport

How to find the cheapest flights from Great Falls International Airport (GTF) to Denver International Airport (DEN)

  • Right now, 95 € is the cheapest price we've found for a one-way Great Falls International Airport to Denver International Airport flight. The best price for a return plane ticket is 188 €. Bear in mind that fares may change due to availability when booking.

  • To pick up cheap tickets from GTF to DEN, book your journey seven months before your departure date.

  • Organise your trip for June. That's the cheapest month for flights from Great Falls International Airport to Denver International Airport. If you have flexibility with your dates, try out the 'Whole month' tool to see the lowest price across every month.

  • You won't have to check every day to see if fares have gone down when you set up a Price Alert. We'll update you the moment there's a new deal on cheap flights from GTF to DEN.

  • Tailor your flights with filters. Choose your arrival and departure times, total journey duration and airlines. You can also sort your results by 'Fastest,' 'Cheapest' or 'Best' flights from Great Falls International Airport to Denver International Airport.

Handy information about Great Falls International Airport (GTF)

  • GTF's address is 2800 Terminal Drive.

  • Great Falls International Airport maintains a strong on-time performance, so you're unlikely to face delays. Departures from GTF make it to their destination as scheduled 83.48% of the time.

  • Great Falls International Airport is about 8 kilometres from central Great Falls. If you're driving, catching a cab or ride-sharing from the centre, it'll take 10 minutes or so to get there, depending on the traffic.

  • Catching public transport? Expect a journey time of around 4 hours.

  • Get your journey off to a hassle-free start by staying near GTF. Whether you're boarding an early flight from Great Falls International Airport to Denver International Airport or just don't like being rushed, these stays are perfect:

Arriving at Denver International Airport (DEN)

  • After your Great Falls International Airport to Denver International Airport flight has touched down, kick back at a nearby hotel. Baymont by Wyndham Denver International Airport is a convenient option that's not too far from DEN.

  • Grab a Denver International Airport rental car and discover Denver and beyond with your own set of wheels. Routes Car Rentals, Dollar and Budget are popular providers to choose from here.

  • Lock in the lowest price by booking your vehicle from Denver International Airport around one week before your travel date.

Getting from Denver International Airport (DEN) to central Denver

  • The address for DEN is 8500 Pena Boulevard.

  • From Denver International Airport, Denver is approximately 40 kilometres away. It takes around 35 minutes to reach the centre by car.

  • When travelling on public transport, expect a journey of about 1 hour 30 minutes.

When to fly to Denver International Airport (DEN)

  • July is the busiest month for flights from Great Falls International Airport to Denver International Airport. To escape the crowds, go to Denver in April.

  • Before locking in your flight from Great Falls International Airport to Denver International Airport, think about the kind of weather you like. July is the warmest month in Denver, with the temperature ranging from 14ºC (57ºF) to 32ºC (90ºF).

  • Search for cheap tickets from GTF to DEN in January if you want to travel in cooler conditions. Temperatures are at their lowest around then, ranging between -9ºC (16ºF) and 7ºC (45ºF) on average.

Explore more of United States

  • Denver is easy to fall in love with, but there are so many other corners of United States just waiting to be explored. About 105 kilometres south of Denver, a visit to Colorado Springs will keep you busy. Check out popular attractions like US Northern Command (USNORTHCOM) / North American Aerospace Defence Command (NORAD) Headquarters, Cheyenne Mountain Air Force Station and National Strength and Conditioning Association (NSCA).

  • If you're interested in discovering another side of United States, consider Aurora, roughly 13 kilometres east of Denver. Magellan's Travel Solutions and Gear, The Fairways at Lowry and Retired Enlisted Association Inc are the start of reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.