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Cheap flights from Great Falls to London from $512

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Great Falls to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
2:45 pm - 9:40 amGTF  Great Falls-LHR London Heathrow
11h 55m1 stop Denver Intl
United Airlines Logo
6:35 am - 9:38 pmLHR  London Heathrow-GTF Great Falls
22h 03m2 stops Munich Franz Josef Strauss Denver Intl
$907United Airlines
Tue, Nov 3 - Tue, Nov 17
United Airlines Logo
6:30 am - 7:10 amGTF  Great Falls-LHR London Heathrow
17h 40m2 stops Denver Intl Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
6:35 am - 9:38 pmLHR  London Heathrow-GTF Great Falls
22h 03m2 stops Munich Franz Josef Strauss Denver Intl
$910United Airlines
Tue, Nov 3 - Tue, Nov 17
United Airlines Logo
2:45 pm - 9:40 amGTF  Great Falls-LHR London Heathrow
11h 55m1 stop Denver Intl
United Airlines Logo
4:40 pm - 1:49 pmLHR  London Heathrow-GTF Great Falls
52h 09m2 stops Munich Franz Josef Strauss Denver Intl
$918United Airlines
Mon, Nov 2 - Mon, Nov 16
United Airlines Logo
2:45 pm - 7:10 amGTF  Great Falls-LHR London Heathrow
33h 25m2 stops Denver Intl Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
4:40 pm - 9:38 pmLHR  London Heathrow-GTF Great Falls
35h 58m2 stops Munich Franz Josef Strauss Denver Intl
$921United Airlines
Mon, Nov 2 - Mon, Nov 16
Alaska Airlines Logo
4:59 pm - 12:20 pmGTF  Great Falls-LHR London Heathrow
12h 21m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
2:45 pm - 4:19 pmLHR  London Heathrow-GTF Great Falls
32h 34m1 stop Seattle/Tacoma Intl
$935Alaska Airlines
Tue, Nov 10 - Fri, Nov 13
United Airlines Logo
2:45 pm - 9:40 amGTF  Great Falls-LHR London Heathrow
11h 55m1 stop Denver Intl
United Airlines Logo
11:35 am - 9:38 pmLHR  London Heathrow-GTF Great Falls
17h 03m1 stop Denver Intl
$935United Airlines
Tue, Nov 3 - Thu, Nov 19
United Airlines Logo
2:45 pm - 9:40 amGTF  Great Falls-LHR London Heathrow
11h 55m1 stop Denver Intl
United Airlines Logo
11:35 am - 9:38 pmLHR  London Heathrow-GTF Great Falls
17h 03m1 stop Denver Intl
$935United Airlines
Tue, Nov 3 - Wed, Nov 18
United Airlines Logo
2:45 pm - 9:40 amGTF  Great Falls-LHR London Heathrow
11h 55m1 stop Denver Intl
United Airlines Logo
11:35 am - 9:38 pmLHR  London Heathrow-GTF Great Falls
17h 03m1 stop Denver Intl
$935United Airlines
Wed, Nov 4 - Tue, Nov 17
United Airlines Logo
2:45 pm - 9:40 amGTF  Great Falls-LHR London Heathrow
11h 55m1 stop Denver Intl
United Airlines Logo
11:35 am - 9:38 pmLHR  London Heathrow-GTF Great Falls
17h 03m1 stop Denver Intl
$935United Airlines
Mon, Nov 2 - Fri, Nov 13
United Airlines Logo
2:45 pm - 9:40 amGTF  Great Falls-LHR London Heathrow
11h 55m1 stop Denver Intl
United Airlines Logo
11:35 am - 9:38 pmLHR  London Heathrow-GTF Great Falls
17h 03m1 stop Denver Intl
$935United Airlines
Mon, Nov 2 - Thu, Nov 19

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United Airlines flights from Great Falls to London Heathrow Airport

Our best United Airlines deals on Great Falls to London Heathrow Airport flight tickets
United Airlines
Nov 3
GTF2:45 pmGreat Falls
11h 55m
1 stop
LHR9:40 amLondon Heathrow
Nov 17
LHR6:35 amLondon Heathrow
22h 03m
2 stops
GTF9:38 pmGreat Falls
$907
United Airlines
Nov 3
GTF6:30 amGreat Falls
17h 40m
2 stops
LHR7:10 amLondon Heathrow
Nov 17
LHR6:35 amLondon Heathrow
22h 03m
2 stops
GTF9:38 pmGreat Falls
$910
United Airlines
Nov 2
GTF2:45 pmGreat Falls
11h 55m
1 stop
LHR9:40 amLondon Heathrow
Nov 16
LHR4:40 pmLondon Heathrow
52h 09m
2 stops
GTF1:49 pmGreat Falls
$918

KLM flights from Great Falls to London Heathrow Airport

Our best KLM deals on Great Falls to London Heathrow Airport flight tickets
KLM
Sep 15
GTF1:15 pmGreat Falls
19h 20m
2 stops
LHR3:35 pmLondon Heathrow
Sep 30
LHR6:30 amLondon Heathrow
18h 11m
2 stops
GTF5:41 pmGreat Falls
$942
KLM
Oct 4
GTF6:21 pmGreat Falls
32h 39m
1 stop
LHR10:00 amLondon Heathrow
Oct 11
LHR12:25 pmLondon Heathrow
17h 15m
2 stops
GTF10:40 pmGreat Falls
$1,131

momondo Fare Finder

 
Use the filters below to find and compare flights from Great Falls to London Heathrow Airport that are best for you.

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Route

Depart

Return

Price

Cheapest round-trip

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Tue 11/3

2:45 pm-9:40 am

1 stop11h 55m

London Heathrow

Tue 11/17

6:35 am-9:38 pm

2 stops22h 03m

$907

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Tue 11/3

6:30 am-7:10 am

2 stops17h 40m

London Heathrow

Tue 11/17

6:35 am-9:38 pm

2 stops22h 03m

$910

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Mon 11/2

2:45 pm-9:40 am

1 stop11h 55m

London Heathrow

Mon 11/16

4:40 pm-1:49 pm

2 stops52h 09m

$918

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Mon 11/2

2:45 pm-7:10 am

2 stops33h 25m

London Heathrow

Mon 11/16

4:40 pm-9:38 pm

2 stops35h 58m

$921

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Tue 11/10

4:59 pm-12:20 pm

1 stop12h 21m

London Heathrow

Fri 11/13

2:45 pm-4:19 pm

1 stop32h 34m

$935
Quickest round-trip

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Tue 11/3

2:45 pm-9:40 am

1 stop11h 55m

London Heathrow

Thu 11/19

11:35 am-9:38 pm

1 stop17h 03m

$935

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Tue 11/3

2:45 pm-9:40 am

1 stop11h 55m

London Heathrow

Wed 11/18

11:35 am-9:38 pm

1 stop17h 03m

$935

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Wed 11/4

2:45 pm-9:40 am

1 stop11h 55m

London Heathrow

Tue 11/17

11:35 am-9:38 pm

1 stop17h 03m

$935

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Mon 11/2

2:45 pm-9:40 am

1 stop11h 55m

London Heathrow

Fri 11/13

11:35 am-9:38 pm

1 stop17h 03m

$935

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Mon 11/2

2:45 pm-9:40 am

1 stop11h 55m

London Heathrow

Thu 11/19

11:35 am-9:38 pm

1 stop17h 03m

$935

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Great Falls to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Great Falls to London Heathrow?

United Airlines is the most popular carrier operating from Great Falls to London Heathrow

When to book flights from Great Falls to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Great Falls to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Great Falls to London Heathrow Airport (GTF to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Great Falls to London Heathrow Airport

Best Price Found

$512

Fastest flight time

12h 03m

Direct flights

None
The best one-way flight to London Heathrow Airport from Great Falls in the past 72 hours is $512. The best round-trip flight deal from Great Falls to London Heathrow Airport found on momondo in the last 72 hours is $907.
The fastest flight from Great Falls to London Heathrow Airport takes 12h 03m
There are no direct flights from Great Falls to London Heathrow Airport. There are no popular flight routes from Great Falls to London Heathrow Airport.
Search flight deals

Frequently asked questions about flying from Great Falls to London Heathrow Airport

  • How far is Great Falls to London Heathrow by plane?

    There are 4468.7 mi between Great Falls and London Heathrow. A reasonable flight in good conditions will take 12h 03m.

  • When did momondo last update prices for flights from Great Falls Airport to London Heathrow Airport?

    Prices for flights from Great Falls Airport to London Heathrow Airport were last updated today.

  • How old do you have to be to fly from Great Falls Airport to London Heathrow Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Great Falls Airport to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The travel and health documents you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Gatwick
Milton Keynes
Luton
Hayes
Stratford-upon-Avon
Wembley
Croydon
Dover
Stansted
Richmond
Kingston upon Thames
Harrow
Watford
Cobham
Slough
Uxbridge
Eastbourne
Worthing
Romford

Why use momondo?

Why should I use momondo to find a flight deal from Great Falls to London?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Great Falls to London. momondo saves you time and could save you money on your trip.

Can I find flights from Great Falls to London with flexible booking policies on momondo?

Yes. All flights to London from Great Falls on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Great Falls to London?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Great Falls to London.

I’m not ready to book a flight from Great Falls to London right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Great Falls to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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