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.

£474 Cheap Flights from Great Falls to London in 2025/26

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0 bags

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Find the cheapest flights from Great Falls to London

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13:12 - 10:00

GTF

LHR

13h 48m1 stop

06:20 - 17:30

LHR

GTF

18h 10m2 stops

£474Multiple Airlines

Fri, 23 Jan - Fri, 6 Feb

14:25 - 07:30

GTF

LHR

34h 05m2 stops

06:35 - 21:11

LHR

GTF

20h 36m2 stops

£476United Airlines

Fri, 27 Feb - Thu, 26 Mar

13:12 - 20:10

GTF

LHR

23h 58m2 stops

06:20 - 17:30

LHR

GTF

18h 10m2 stops

£477Delta

Fri, 23 Jan - Fri, 6 Feb

14:29 - 07:10

GTF

LHR

33h 41m2 stops

16:40 - 21:43

LHR

GTF

36h 03m2 stops

£479United Airlines

Fri, 30 Jan - Fri, 6 Feb

17:59 - 07:10

GTF

LHR

30h 11m1 stop

14:55 - 17:19

LHR

GTF

33h 24m1 stop

£490Multiple Airlines

Fri, 23 Jan - Fri, 6 Feb

18:10 - 06:55

GTF

LHR

29h 45m2 stops

10:45 - 22:48

LHR

GTF

18h 03m1 stop

£493Delta

Fri, 27 Feb - Thu, 26 Mar

06:10 - 09:40

GTF

LHR

20h 30m1 stop

16:40 - 21:53

LHR

GTF

36h 13m2 stops

£626United Airlines

Thu, 8 Jan - Mon, 12 Jan

06:10 - 09:40

GTF

LHR

20h 30m1 stop

06:30 - 13:48

LHR

GTF

38h 18m2 stops

£627United Airlines

Thu, 8 Jan - Mon, 12 Jan

14:29 - 07:10

GTF

LHR

33h 41m2 stops

16:40 - 21:53

LHR

GTF

36h 13m2 stops

£629United Airlines

Thu, 8 Jan - Mon, 12 Jan

06:10 - 07:55

GTF

LHR

18h 45m2 stops

07:30 - 13:48

LHR

GTF

37h 18m2 stops

£630United Airlines

Thu, 8 Jan - Mon, 12 Jan

United Airlines flights from Great Falls to London

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

United Airlines

27 Feb

GTF14:25Great Falls

34h 05m

2 stops

LHR07:30London Heathrow

26 Mar

LHR06:35London Heathrow

20h 36m

2 stops

GTF21:11Great Falls

£476

Find similar

United Airlines

30 Jan

GTF14:29Great Falls

33h 41m

2 stops

LHR07:10London Heathrow

6 Feb

LHR16:40London Heathrow

36h 03m

2 stops

GTF21:43Great Falls

£479

Find similar

United Airlines

8 Jan

GTF06:10Great Falls

20h 30m

1 stop

LHR09:40London Heathrow

12 Jan

LHR16:40London Heathrow

36h 13m

2 stops

GTF21:53Great Falls

£626

Find similar

Delta flights from Great Falls to London

Our best Delta deals on Great Falls to London flight tickets

Delta

23 Jan

GTF13:12Great Falls

23h 58m

2 stops

LHR20:10London Heathrow

6 Feb

LHR06:20London Heathrow

18h 10m

2 stops

GTF17:30Great Falls

£477

Find similar

Delta

27 Feb

GTF18:10Great Falls

29h 45m

2 stops

LHR06:55London Heathrow

26 Mar

LHR10:45London Heathrow

18h 03m

1 stop

GTF22:48Great Falls

£493

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Fri 23/1

13:12-10:00

1 stop13h 48m

London Heathrow

Fri 6/2

06:20-17:30

2 stops18h 10m

£474

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Fri 27/2

14:25-07:30

2 stops34h 05m

London Heathrow

Thu 26/3

06:35-21:11

2 stops20h 36m

£476

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Fri 23/1

13:12-20:10

2 stops23h 58m

London Heathrow

Fri 6/2

06:20-17:30

2 stops18h 10m

£477

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Fri 30/1

14:29-07:10

2 stops33h 41m

London Heathrow

Fri 6/2

16:40-21:43

2 stops36h 03m

£479

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Fri 23/1

17:59-07:10

1 stop30h 11m

London Heathrow

Fri 6/2

14:55-17:19

1 stop33h 24m

£490

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Fri 27/2

18:10-06:55

2 stops29h 45m

London Heathrow

Thu 26/3

10:45-22:48

1 stop18h 03m

£493

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Thu 8/1

06:10-09:40

1 stop20h 30m

London Heathrow

Mon 12/1

16:40-21:53

2 stops36h 13m

£626

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Thu 8/1

06:10-09:40

1 stop20h 30m

London Heathrow

Mon 12/1

06:30-13:48

2 stops38h 18m

£627

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Thu 8/1

14:29-07:10

2 stops33h 41m

London Heathrow

Mon 12/1

16:40-21:53

2 stops36h 13m

£629

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Thu 8/1

06:10-07:55

2 stops18h 45m

London Heathrow

Mon 12/1

07:30-13:48

2 stops37h 18m

£630

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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

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

Can stopping save me money on Great Falls to London flights?

You could potentially save up to 1% on your flight if you consider stops on a Great Falls to London flight.

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 11m
Direct flights	None

The fastest flight from Great Falls to London takes 12h 11m

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

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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 11m, 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.

Eastbourne

Milton Keynes

Luton

Gatwick

Maidstone

Slough

Southend-on-Sea

Canterbury

Ipswich

Ilford

Guildford

Hayes

Chelmsford

Dover

Worthing

Colchester

Bedford

Ramsgate

Hounslow

Stansted

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.