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GTF - LHR

Find cheap flights from Great Falls to London from $746

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 8/23. 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
Wed 6/5
Wed 6/12

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 42,830,901 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
7:00 am - 12:20 pmGTF-LHR
22h 20m1 stop
2:05 pm - 1:26 pmLHR-GTF
30h 21m2 stops
$746United Airlines
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Fri, Aug 23 - Tue, Aug 27
7:00 am - 6:45 amGTF-LHR
16h 45m2 stops
2:05 pm - 1:26 pmLHR-GTF
30h 21m2 stops
$750United Airlines
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Fri, Aug 23 - Tue, Aug 27
5:55 am - 10:00 amGTF-LHR
21h 05m1 stop
6:15 am - 4:50 pmLHR-GTF
17h 35m2 stops
$761Delta
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Fri, Aug 23 - Tue, Aug 27
5:55 am - 11:10 amGTF-LHR
22h 15m2 stops
6:15 am - 4:50 pmLHR-GTF
17h 35m2 stops
$765Delta
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Fri, Aug 23 - Tue, Aug 27
12:30 pm - 10:00 amGTF-LHR
14h 30m1 stop
9:20 am - 10:51 pmLHR-GTF
20h 31m1 stop
$789KLM
Find Deal
Tue, Oct 1 - Thu, Oct 10
6:00 am - 7:15 amGTF-LHR
18h 15m1 stop
9:00 am - 11:13 pmLHR-GTF
21h 13m2 stops
$920Virgin Atlantic
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Tue, Jun 4 - Tue, Jun 11
4:31 pm - 8:20 pmGTF-LHR
20h 49m2 stops
9:25 pm - 11:46 pmLHR-GTF
33h 21m2 stops
$1,025
Find Deal
Sun, Sep 1 - Sat, Sep 7
7:00 am - 8:20 pmGTF-LHR
30h 20m2 stops
1:05 pm - 11:46 pmLHR-GTF
17h 41m2 stops
$1,075
Find Deal
Sun, Sep 15 - Sat, Sep 21
12:30 pm - 10:00 amGTF-LHR
14h 30m1 stop
11:00 am - 10:33 pmLHR-GTF
18h 33m1 stop
$1,587KLM
Find Deal
Sat, Aug 17 - Wed, Aug 21
6:00 am - 7:15 amGTF-LHR
18h 15m1 stop
9:20 am - 10:49 pmLHR-GTF
20h 29m1 stop
$1,688Virgin Atlantic
Find Deal
Sun, Sep 1 - Sat, Sep 7

Good to know

Cheapest flight

$746
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 $746 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 $799 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 $856 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 10818 reviews
8.0Entertainment
8.6Crew
7.9Comfort
8.2Boarding
7.4Food
Airline reviews

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

2.0 MediocreAnonymous, May 2024AVL - LGA
Read more about Delta reviews

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

Big plane, long flight, absolutely no leg room and basically non existent air! I am 5”4’ and always travel Main Cabin, I was miserable on this plane and could barely move when we arrived in Cabo due to the cramped leg area!

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The pilots were good. Disappointing when planes don't have electrical ports

This flight was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

All flights were on time and boarding was issue free

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

Great! The plane was decently sized and comfortable. The staff was nice and there was great in flight entertainment

Food was terrible Not many options Stewards dont care Delay

Great Falls - London Flights

Departure:

Great Falls (GTF)United States

Destination:

London (LHR)United Kingdom

Cabin classes: