Cheap Flights from London Heathrow to Great Falls International

Compare London Heathrow to Great Falls International flight deals

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

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Flight deals from London Heathrow to Great Falls International

Looking for a cheap last-minute deal or the best round-trip flight from London Heathrow Airport to Great Falls International Airport? If you want to travel next month, round-trip fares start from AED 5,243. Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from London Heathrow to Great Falls International

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

London Heathrow to Great Falls International: Alternative routes

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

London to Great Falls: Flight information

The things to know before you go.
Cheapest flight foundAED 2,419
Cheapest month to flySeptember

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

The best price we found for a round-trip flight from London Heathrow to Great Falls International is AED 4,101. 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.
Currently, there are no airlines that fly direct from London Heathrow to Great Falls International. But we found flights with one or more stops from AED 4,101.
There are no flights flying from London Heathrow to Great Falls International, as of May 2026.
The cheapest month to fly from London Heathrow to Great Falls International is usually October.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from London Heathrow Airport to Great Falls International Airport on Thursday, October 1, 2026.
No airlines currently offer direct flights between London Heathrow Airport and Great Falls International Airport. Most routes have one or more stops.
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 Great Falls 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 Great Falls is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Delta offers the cheapest flight tickets to Great Falls International.

Traveling from London Heathrow Airport (LHR) to Great Falls International Airport (GTF): what you need to know

  • To ensure you get on your LHR to GTF flight, allow plenty of time for things like check-in and baggage drop. Arriving two hours ahead of international departures and one hour before domestic flights is the general travel rule.

  • Flying during a peak time like July? School holidays and other popular periods can lead to longer lines and delays at check-in and security. Be extra cautious and arrive up to four hours ahead of international flights and two hours before a domestic departure.

  • We make it easy to book a flight with a stopover. To see your options for tickets from London Heathrow Airport to Great Falls International Airport, uncheck 'Direct flights only.' Then, choose a flight with a stop long enough to tour the city of your choice. Some great stopovers between LHR and GTF include:

    • Denver International Airport

    • Salt Lake City International Airport

    • Minneapolis-St. Paul International Airport

How to find the cheapest flights from London Heathrow Airport (LHR) to Great Falls International Airport (GTF)

  • The lowest price we've found for a one-way London Heathrow Airport to Great Falls International Airport flight is AED 2,419. A return ticket is currently AED 4,101. Depending on the availability and when you book, these fares can change.

  • It's often best to book ahead of time if you're hoping to get cheap tickets from LHR to GTF. That's because airlines adjust prices based on demand, which tends to increase closer to the date of departure.

  • Getting cheap flights from London Heathrow Airport to Great Falls International Airport is more likely if you're flexible with your travel dates. Use the 'Whole month' search tool to see the lowest prices across every month and snap up a great deal.

  • Picking up cheap flights from LHR to GTF is a piece of cake with Price Alerts. Simply set up one of these automatic alerts and we'll get in touch as soon as a new deal comes up.

  • Find the right flight for you by using the filters. To see the 'Fastest,' 'Cheapest' or 'Best' flights from London Heathrow Airport to Great Falls International Airport, use the 'Sort by' tool. You can also filter by departure and arrival times, airline, and journey duration.

Handy information about London Heathrow Airport (LHR)

  • 68.18% of flights that leave from London Heathrow Airport touch down at their destination on time.

  • London Heathrow Airport is around 31 kilometers from central London. If you're catching a cab, ride-sharing or driving from the center, it'll take 55 minutes or so to arrive, depending on the traffic.

  • Expect a trip time of roughly 1 hour on public transport.

  • Taking an early flight from London Heathrow Airport to Great Falls International Airport? Avoid the hassle of rushing to the airport (and enjoy a little extra shut-eye) by choosing one of these hotels near LHR:

Arriving at Great Falls International Airport (GTF)

Getting from Great Falls International Airport (GTF) to central Great Falls

  • You'll find GTF at 2800 Terminal Drive.

  • Great Falls International Airport is approximately 8 kilometers from central Great Falls. Driving there takes about 10 minutes.

  • Traveling by public transport typically takes 4 hours.

When to fly to Great Falls International Airport (GTF)

  • It's time to choose your travel dates for your flight from London Heathrow Airport to Great Falls International Airport. August is the most popular month to head to Great Falls. If you want a more laid-back vibe, go in February.

  • Before locking in your flight from London Heathrow Airport to Great Falls International Airport, consider the type of weather you enjoy. July is the warmest month in Great Falls, with the temperature ranging from 11ºC (52ºF) to 33ºC (91ºF).

  • If you like traveling in cooler conditions, look for a cheap ticket from LHR to GTF in February. Average temperatures are between -21ºC (-6ºF) and 8ºC (46ºF) then.

Explore more of United States

  • Great Falls has plenty going for it, but there are so many other parts of United States you'll want to see. About 467 kilometers west of Great Falls, a visit to Spokane will keep you busy. Start with attractions like Manito Park, Northwest Museum of Arts & Culture and Spokane Falls.

  • Billings is another must-experience destination in United States and is around 290 kilometers south-east of Great Falls. No journey is complete without experiencing Pictograph Cave State Park, Moss Mansion and Yellowstone Art Museum.

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