How do I get Price Alerts for flights from Great Falls to London?

Search flight deals from Great Falls to London . While viewing offers you’ll have the option to create a Price Alert.

How can I save money on flights from Great Falls to London with momondo?

Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

How does momondo find its flight prices?

We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

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

Prices for flights from Great Falls Airport to London are refreshed on a daily basis.

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

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.

What documentation or ID do you need to fly to London?

The required travel and health documents for your London trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

£650 Cheap Flights from Great Falls to London in 2026

Voted winner of Europe's Best Travel App 2023

Find the cheapest flights from Great Falls to London

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

14:39 - 09:40

GTF

LHR

12h 01m

1 stop

06:35 - 21:47

LHR

GTF

22h 12m

2 stops

£650United Airlines

Mon, 9 Nov - Fri, 13 Nov

14:39 - 07:10

GTF

LHR

33h 31m

2 stops

06:35 - 21:47

LHR

GTF

22h 12m

2 stops

£652United Airlines

Mon, 9 Nov - Fri, 13 Nov

16:57 - 12:20

GTF

LHR

12h 23m

1 stop

14:45 - 16:17

LHR

GTF

32h 32m

1 stop

£658Alaska Airlines

Mon, 9 Nov - Fri, 13 Nov

17:15 - 15:05

GTF

LHR

14h 50m

1 stop

14:45 - 16:35

LHR

GTF

31h 50m

1 stop

£659Alaska Airlines

Wed, 21 Oct - Wed, 28 Oct

13:10 - 10:00

GTF

LHR

13h 50m

1 stop

17:50 - 17:43

LHR

GTF

30h 53m

2 stops

£669Multiple Airlines

Wed, 2 Dec - Wed, 9 Dec

14:37 - 09:40

GTF

LHR

12h 03m

1 stop

06:35 - 21:47

LHR

GTF

21h 12m

2 stops

£670United Airlines

Mon, 28 Sep - Wed, 28 Oct

06:15 - 10:00

GTF

LHR

20h 45m

2 stops

06:35 - 21:47

LHR

GTF

21h 12m

2 stops

£672United Airlines

Mon, 28 Sep - Wed, 28 Oct

13:10 - 10:00

GTF

LHR

13h 50m

1 stop

10:45 - 17:43

LHR

GTF

13h 58m

1 stop

£691Multiple Airlines

Wed, 2 Dec - Wed, 9 Dec

17:19 - 13:45

GTF

LHR

13h 26m

1 stop

14:55 - 16:35

LHR

GTF

31h 40m

1 stop

£692Multiple Airlines

Mon, 28 Sep - Wed, 28 Oct

14:25 - 12:25

GTF

LHR

15h 00m

1 stop

06:55 - 21:12

LHR

GTF

21h 17m

2 stops

£695United Airlines

Tue, 18 Aug - Wed, 2 Sep

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Alaska Airlines flights from Great Falls to London

Our best Alaska Airlines deals on Great Falls to London flight tickets

Alaska Airlines

9 Nov

GTF16:57Great Falls

12h 23m

1 stop

LHR12:20London Heathrow

13 Nov

LHR14:45London Heathrow

32h 32m

1 stop

GTF16:17Great Falls

£658

Alaska Airlines

21 Oct

GTF17:15Great Falls

14h 50m

1 stop

LHR15:05London Heathrow

28 Oct

LHR14:45London Heathrow

31h 50m

1 stop

GTF16:35Great Falls

£659

Alaska Airlines

17 Aug

GTF17:09Great Falls

14h 56m

1 stop

LHR15:05London Heathrow

24 Aug

LHR17:00London Heathrow

30h 38m

1 stop

GTF16:38Great Falls

£754

United Airlines flights from Great Falls to London

Our best United Airlines deals on Great Falls to London flight tickets

United Airlines

9 Nov

GTF14:39Great Falls

12h 01m

1 stop

LHR09:40London Heathrow

13 Nov

LHR06:35London Heathrow

22h 12m

2 stops

GTF21:47Great Falls

£650

United Airlines

9 Nov

GTF14:39Great Falls

33h 31m

2 stops

LHR07:10London Heathrow

13 Nov

LHR06:35London Heathrow

22h 12m

2 stops

GTF21:47Great Falls

£652

United Airlines

28 Sept

GTF14:37Great Falls

12h 03m

1 stop

LHR09:40London Heathrow

28 Oct

LHR06:35London Heathrow

21h 12m

2 stops

GTF21:47Great Falls

£670

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 9/11

14:39-09:40

1 stop12h 01m

London Heathrow

Fri 13/11

06:35-21:47

2 stops22h 12m

£650

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 9/11

14:39-07:10

2 stops33h 31m

London Heathrow

Fri 13/11

06:35-21:47

2 stops22h 12m

£652

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 9/11

16:57-12:20

1 stop12h 23m

London Heathrow

Fri 13/11

14:45-16:17

1 stop32h 32m

£658

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Wed 21/10

17:15-15:05

1 stop14h 50m

London Heathrow

Wed 28/10

14:45-16:35

1 stop31h 50m

£659

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Wed 2/12

13:10-10:00

1 stop13h 50m

London Heathrow

Wed 9/12

17:50-17:43

2 stops30h 53m

£669

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 28/9

14:37-09:40

1 stop12h 03m

London Heathrow

Wed 28/10

06:35-21:47

2 stops21h 12m

£670

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 28/9

06:15-10:00

2 stops20h 45m

London Heathrow

Wed 28/10

06:35-21:47

2 stops21h 12m

£672

Fastest return journey

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Wed 2/12

13:10-10:00

1 stop13h 50m

London Heathrow

Wed 9/12

10:45-17:43

1 stop13h 58m

£691

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 28/9

17:19-13:45

1 stop13h 26m

London Heathrow

Wed 28/10

14:55-16:35

1 stop31h 40m

£692

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Tue 18/8

14:25-12:25

1 stop15h 00m

London Heathrow

Wed 2/9

06:55-21:12

2 stops21h 17m

£695

Flights are sorted by cheapest return flights first.

Showing 1-10 of 12 resultsSorted by cheapest first

When to book flights from Great Falls to London

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

Estimated return price

Cheap Great Falls to London (GTF to LON) flight deals and tips

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

Fastest flight time	12h 01m
Direct flights	None

The fastest flight from Great Falls to London takes 12h 01m

There are no direct flights from Great Falls to London. There are no popular flight routes from Great Falls to London.

Search flight deals

Frequently asked questions about flying from Great Falls to London

How far is Great Falls to London by plane?
The straight-line distance from Great Falls to London is 4477.2 mi. Flights usually cover this in 12h 01m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Great Falls Airport to London?
Prices for flights from Great Falls Airport to London are refreshed on a daily basis.
How old do you have to be to fly from Great Falls Airport to London?
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.
What documentation or ID do you need to fly to London?
The required travel and health documents for your London trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Frequently asked questions about flying from Great Falls to London

How do I get Price Alerts for flights from Great Falls to London?
Search flight deals from Great Falls to London. While viewing offers you’ll have the option to create a Price Alert.
How can I save money on flights from Great Falls to London with momondo?
Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.
How does momondo find its flight prices?
We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Eastbourne

Wembley

Gatwick

Milton Keynes

Luton

Southend-on-Sea

Slough

Ipswich

Maidstone

Folkestone

Ilford

Canterbury

Guildford

Hastings

Hayes

Chichester

Bedford

Colchester

Harlow

Chelmsford

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?

Once all potential Great Falls to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from Great Falls to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

An easier way to manage your London trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

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Fly into one of these airports located in London

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London Gatwick Airport

London Heathrow Airport

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London Stansted Airport

Cheap flights from Great Falls to London from £343

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Great Falls to London departing on 26/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Great Falls to London

Cheap return flights

Cheap one-way flights

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Alaska Airlines flights from Great Falls to London

Our best Alaska Airlines deals on Great Falls to London flight tickets

United Airlines flights from Great Falls to London

Our best United Airlines deals on Great Falls to London flight tickets

momondo Fare Finder

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

When to book flights from Great Falls to London

Cheap Great Falls to London (GTF to LON) flight deals and tips

Fastest flight time

Direct flights

Frequently asked questions about flying from Great Falls to London

Frequently asked questions about flying from Great Falls to London

Travelling to a place near London?

Why use momondo?

An easier way to manage your London trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London

Cabin classes currently available on flights to London

List of cabin classes available on flights landing in London. Availability may vary depending on flight origin and airline.

Popular Cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo

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