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.

£565 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

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

06:15 - 06:40

GTF

LHR

17h 25m

2 stops

06:35 - 22:30

LHR

GTF

22h 55m

2 stops

£565United Airlines

Wed, 11 Nov - Fri, 13 Nov

14:25 - 11:05

GTF

LHR

37h 40m

2 stops

07:30 - 21:20

LHR

GTF

20h 50m

2 stops

£576United Airlines

Sun, 6 Dec - Wed, 9 Dec

14:25 - 11:05

GTF

LHR

37h 40m

2 stops

07:30 - 21:20

LHR

GTF

20h 50m

2 stops

£577United Airlines

Sun, 6 Dec - Wed, 9 Dec

14:25 - 16:50

GTF

LHR

43h 25m

2 stops

11:35 - 13:29

LHR

GTF

32h 54m

1 stop

£583United Airlines

Sun, 6 Dec - Wed, 9 Dec

14:25 - 09:40

GTF

LHR

12h 15m

1 stop

06:35 - 22:30

LHR

GTF

22h 55m

2 stops

£623United Airlines

Wed, 11 Nov - Fri, 13 Nov

16:55 - 12:20

GTF

LHR

12h 25m

1 stop

14:45 - 16:13

LHR

GTF

32h 28m

1 stop

£664Alaska Airlines

Sun, 6 Dec - Wed, 9 Dec

16:55 - 12:20

GTF

LHR

12h 25m

1 stop

14:45 - 16:13

LHR

GTF

32h 28m

1 stop

£665Alaska Airlines

Sun, 6 Dec - Wed, 9 Dec

06:15 - 09:40

GTF

LHR

20h 25m

1 stop

06:55 - 21:12

LHR

GTF

21h 17m

2 stops

£776United Airlines

Thu, 27 Aug - Sat, 5 Sep

06:15 - 06:55

GTF

LHR

17h 40m

2 stops

06:55 - 21:12

LHR

GTF

21h 17m

2 stops

£780United Airlines

Thu, 27 Aug - Sat, 5 Sep

14:25 - 12:25

GTF

LHR

15h 00m

1 stop

14:50 - 21:12

LHR

GTF

13h 22m

1 stop

£798United Airlines

Thu, 27 Aug - Sat, 5 Sep

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United Airlines flights from Great Falls to London

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

United Airlines

11 Nov

GTF06:15Great Falls

17h 25m

2 stops

LHR06:40London Heathrow

13 Nov

LHR06:35London Heathrow

22h 55m

2 stops

GTF22:30Great Falls

£565

United Airlines

6 Dec

GTF14:25Great Falls

37h 40m

2 stops

LHR11:05London Heathrow

9 Dec

LHR07:30London Heathrow

20h 50m

2 stops

GTF21:20Great Falls

£576

United Airlines

6 Dec

GTF14:25Great Falls

37h 40m

2 stops

LHR11:05London Heathrow

9 Dec

LHR07:30London Heathrow

20h 50m

2 stops

GTF21:20Great Falls

£577

Alaska Airlines flights from Great Falls to London

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

Alaska Airlines

6 Dec

GTF16:55Great Falls

12h 25m

1 stop

LHR12:20London Heathrow

9 Dec

LHR14:45London Heathrow

32h 28m

1 stop

GTF16:13Great Falls

£664

Alaska Airlines

6 Dec

GTF16:55Great Falls

12h 25m

1 stop

LHR12:20London Heathrow

9 Dec

LHR14:45London Heathrow

32h 28m

1 stop

GTF16:13Great Falls

£664

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Wed 11/11

06:15-06:40

2 stops17h 25m

London Heathrow

Fri 13/11

06:35-22:30

2 stops22h 55m

£565

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sun 6/12

14:25-11:05

2 stops37h 40m

London Heathrow

Wed 9/12

07:30-21:20

2 stops20h 50m

£576

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sun 6/12

14:25-11:05

2 stops37h 40m

London Heathrow

Wed 9/12

07:30-21:20

2 stops20h 50m

£577

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sun 6/12

14:25-16:50

2 stops43h 25m

London Heathrow

Wed 9/12

11:35-13:29

1 stop32h 54m

£583

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Wed 11/11

14:25-09:40

1 stop12h 15m

London Heathrow

Fri 13/11

06:35-22:30

2 stops22h 55m

£623

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sun 6/12

16:55-12:20

1 stop12h 25m

London Heathrow

Wed 9/12

14:45-16:13

1 stop32h 28m

£664

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sun 6/12

16:55-12:20

1 stop12h 25m

London Heathrow

Wed 9/12

14:45-16:13

1 stop32h 28m

£664

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Thu 27/8

06:15-09:40

1 stop20h 25m

London Heathrow

Sat 5/9

06:55-21:12

2 stops21h 17m

£776

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Thu 27/8

06:15-06:55

2 stops17h 40m

London Heathrow

Sat 5/9

06:55-21:12

2 stops21h 17m

£780

Fastest return journey

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Thu 27/8

14:25-12:25

1 stop15h 00m

London Heathrow

Sat 5/9

14:50-21:12

1 stop13h 22m

£798

Flights are sorted by cheapest return flights first.

Sorted 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	17h 30m
Direct flights	None

The fastest flight from Great Falls to London takes 17h 30m

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 17h 30m, 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

Milton Keynes

Gatwick

Wembley

Luton

Slough

Southend-on-Sea

Maidstone

Ipswich

Ilford

Canterbury

Guildford

Folkestone

Hayes

Chelmsford

Bedford

Dover

Chichester

Harlow

Colchester

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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Find better results for your trip to the United Kingdom

Nearby airports

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Feeling lucky

Fly into one of these airports located in London

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London Heathrow Airport

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Cheap flights from Great Falls to London from £565

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Great Falls to London departing on 11/11. 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

United Airlines flights from Great Falls to London

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

Alaska Airlines flights from Great Falls to London

Our best Alaska 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

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

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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