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GTF - LHR

Find cheap flights from Great Falls to London from $725

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Great Falls to Heathrow departing on 10/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sun 5/19
Sun 5/26

Search hundreds of travel sites at once for deals on flights to London

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Great Falls to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Great Falls to London, as well as popular online travel agencies
In the last 7 days travelers have searched 44,212,662 times on KAYAK, and here is why:

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Cheap flight deals from Great Falls to Heathrow (GTF-LHR)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Great Falls to Heathrow that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:45 am - 9:40 amGTF-LHR
19h 55m1 stop
7:25 am - 1:31 pmLHR-GTF
37h 06m2 stops
$725United Airlines
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Wed, Oct 16 - Wed, Oct 23
6:45 am - 7:40 amGTF-LHR
17h 55m2 stops
7:25 am - 1:31 pmLHR-GTF
37h 06m2 stops
$729United Airlines
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Wed, Oct 16 - Wed, Oct 23
12:30 pm - 10:00 amGTF-LHR
14h 30m1 stop
11:00 am - 10:37 pmLHR-GTF
18h 37m1 stop
$738KLM
Find Deal
Wed, Oct 16 - Wed, Oct 23
5:45 am - 10:00 amGTF-LHR
21h 15m1 stop
9:55 am - 10:36 pmLHR-GTF
19h 41m2 stops
$1,169Delta
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Wed, May 15 - Wed, May 22
12:00 pm - 11:10 amGTF-LHR
16h 10m2 stops
6:30 am - 10:36 pmLHR-GTF
23h 06m2 stops
$1,173Delta
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Wed, May 15 - Wed, May 22
12:07 pm - 10:00 amGTF-LHR
14h 53m1 stop
9:20 am - 10:54 pmLHR-GTF
20h 34m1 stop
$1,189KLM
Find Deal
Tue, Jul 9 - Wed, Jul 17
7:00 am - 11:55 amGTF-LHR
21h 55m2 stops
9:25 pm - 3:23 pmLHR-GTF
24h 58m2 stops
$1,229
Find Deal
Sun, May 19 - Tue, May 28
12:00 pm - 1:15 pmGTF-LHR
18h 15m2 stops
10:55 am - 5:38 pmLHR-GTF
13h 43m1 stop
$1,348Air France
Find Deal
Sat, May 18 - Tue, May 28
12:00 pm - 11:10 amGTF-LHR
16h 10m2 stops
10:55 am - 10:36 pmLHR-GTF
18h 41m1 stop
$1,398Air France
Find Deal
Fri, May 17 - Sat, May 25
7:00 am - 1:00 pmGTF-LHR
23h 00m1 stop
4:00 pm - 11:55 pmLHR-GTF
14h 55m1 stop
$1,594
Find Deal
Sun, May 19 - Mon, May 27

Good to know

Cheapest flight

$725
Flight from Great Falls to London

When to book flights from Great Falls to Heathrow

Are your dates flexible? Find out the best times to travel from Great Falls to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Great Falls to London flights

  • What is the cheapest flight from Great Falls to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Great Falls to London Heathrow Airport was $725 for a round-trip ticket.

  • Do I need a passport to fly between Great Falls and London?

    Yes

  • Which airports will I be using when flying from Great Falls to London?

    Great Falls and London are both served by 1 main airport. You will leave Great Falls from Great Falls and will be arriving at London Heathrow.

  • Which aircraft models fly most regularly from Great Falls to London?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Great Falls to London?

    Star Alliance, and SkyTeam are the airline alliances operating flights between Great Falls and London, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Great Falls to London, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Great Falls to London are Delta and United Airlines. With an average price for the route of $935 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $880 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Great Falls to London?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Great Falls to London.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Great Falls to London?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Great Falls is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Great Falls to London?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Great Falls with another airline. Booking your flights between Great Falls and LHR can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Great Falls to London?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Great Falls up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airlines flying from Great Falls to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Great Falls to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Great Falls to Heathrow? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 11094 reviews
7.5food
8.2boarding
8.0entertainment
8.6crew
7.9comfort
Airline reviews

Seat back monitors and outlets were dead and not working.

8.0 ExcellentCarl, Apr 2024JFK - FLL
Read more about Delta reviews

Seat back monitors and outlets were dead and not working.

Everything was great except for the seat. The backrest would not stay in the upright position.

I usually have a positive experience with Delta. Complimentary upgrades are always nice!

Flight delayed about 2 hrs so it made it a VERY late night

The crew, food, and entertainment were all good. But my screen had some sort of bug where if I turned it off, it would turn back on after 2-5 minutes. At full brightness. It made it very hard to get any shut-eye on the overnight flight. Also, the older Boeing plane, while nicely cared for (and no doors fell off 😅👏) doesn't have the nice air quality of newer planes. So I felt a bit greasy by the time we landed in Sweden.

It was a crowded flight. They did the best they could.

Service was good for such a short flight. Small plane but smooth flight.

Worst flight in my life. Only was scheduled for a 45 min flight to get our connection flight. It was late by 40 minutes and we missed our connection. Delta was totally useless trying to help and unable to get my family on the next flight because they overbooked it Thus had to get a hotel at my expense and lost a day at Disney as a result. Cost me about a $1000 if you add 2 hotels meals shuttles etc to get thru the day Awful customer service by Delta in Detroit totally useless people

The experience was good and the flight departed on time and landed early

The flight was delayed but we got to our final destination.

I just wrote a text which was supposed to be for the flight from Denver to spokane not Frankfurt to Denver.

On time every leg of the journey and exceptional staff at counter, gate, and on board. I haven’t travelled in US for a long time and was genuinely surprised how pleasant this was.

Hated every minute of it. This flight should have only taken 1.5hrs but was delayed over 10hours. Now I am being told I cannot be compensated or refunded my ticket price or extra leg room, which I purchased but did not receive, because the airline is throwing the blame on the 3rd party I purchased tickets through and 3rd party putting the blame on airline. No one wants to help. They received their money and that's all they care about. Im going on 3 days of still trying to get to my final destination, had to cancel car rental, car insurance and hotel. Currently staying in airport until hotels open up. Thank you Lufthansa, Kayak, Underpricer and United for making this trip the worst ever.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

flight delays, staff only communicating when pushed, food service lasting a grand total of 7 minutes, stuck in seat from 45mins into flight until landing

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

the flight from Tampa departed with a delay. The food on board was poor, usually on international airlines alcoholic beverages are offered free of charge , but here it was for a fee, the cutlery was wooden, there were no hot drinks (tea, coffee). Unfortunately, I didn't take pictures of the portions of food, but it wouldn't have been enough for a child either.And in the future, I will try not to use the services of this airline

they made me check my carryon. There was space in the overhead bins.

Nice flight, nice crew but no cookie or napkin with my seltzer.

Trip was smooth bumpy from the wind but no issues at all the crew attendant was very pleasant and had great customer service

Great Falls - London Flights

Departure:

Great Falls (GTF)United States

Destination:

London (LHR)United Kingdom

Cabin classes: