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.

£510 Cheap Flights from Great Falls to London in 2026

Find the cheapest flights from Great Falls to London

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One-way

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Enter your travel dates to find the best prices.

05:35 - 07:05GTF Great Falls-LHR London Heathrow

18h 30m2 stops Salt Lake City Minneapolis St Paul

17:50 - 17:41LHR London Heathrow-GTF Great Falls

30h 51m2 stops Amsterdam Schiphol Salt Lake City

£654KLM

Sun, 15 Nov - Wed, 9 Dec

14:25 - 09:40GTF Great Falls-LHR London Heathrow

12h 15m1 stop Denver Intl

07:30 - 13:29LHR London Heathrow-GTF Great Falls

36h 59m2 stops Frankfurt am Main Denver Intl

£660United Airlines

Mon, 7 Dec - Fri, 11 Dec

16:55 - 12:20GTF Great Falls-LHR London Heathrow

12h 25m1 stop Seattle/Tacoma Intl

14:45 - 16:13LHR London Heathrow-GTF Great Falls

32h 28m1 stop Seattle/Tacoma Intl

£661Alaska Airlines

Mon, 7 Dec - Fri, 11 Dec

06:15 - 09:40GTF Great Falls-LHR London Heathrow

20h 25m1 stop Denver Intl

15:00 - 21:20LHR London Heathrow-GTF Great Falls

37h 20m2 stops Toronto Pearson Intl Denver Intl

£663United Airlines

Mon, 7 Dec - Fri, 11 Dec

06:15 - 07:10GTF Great Falls-LHR London Heathrow

17h 55m2 stops Denver Intl Montreal Pierre Elliott Trudeau Intl

07:30 - 21:20LHR London Heathrow-GTF Great Falls

20h 50m2 stops Frankfurt am Main Denver Intl

£663United Airlines

Mon, 7 Dec - Fri, 11 Dec

06:15 - 11:05GTF Great Falls-LHR London Heathrow

21h 50m2 stops Denver Intl Newark

11:10 - 21:20LHR London Heathrow-GTF Great Falls

41h 10m2 stops Toronto Pearson Intl Denver Intl

£666United Airlines

Mon, 7 Dec - Fri, 11 Dec

13:18 - 10:00GTF Great Falls-LHR London Heathrow

13h 42m1 stop Salt Lake City

10:45 - 17:41LHR London Heathrow-GTF Great Falls

13h 56m1 stop Salt Lake City

£672Delta

Mon, 2 Nov - Thu, 19 Nov

14:45 - 09:40GTF Great Falls-LHR London Heathrow

11h 55m1 stop Denver Intl

11:35 - 21:38LHR London Heathrow-GTF Great Falls

17h 03m1 stop Denver Intl

£674United Airlines

Mon, 2 Nov - Fri, 20 Nov

13:13 - 13:45GTF Great Falls-LHR London Heathrow

17h 32m2 stops Salt Lake City Paris Charles de Gaulle

20:25 - 17:41LHR London Heathrow-GTF Great Falls

28h 16m2 stops Amsterdam Schiphol Salt Lake City

£675Multiple Airlines

Wed, 11 Nov - Wed, 18 Nov

05:35 - 07:05GTF Great Falls-LHR London Heathrow

18h 30m2 stops Salt Lake City Minneapolis St Paul

10:45 - 17:41LHR London Heathrow-GTF Great Falls

13h 56m1 stop Salt Lake City

£676KLM

Sun, 15 Nov - Wed, 9 Dec

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KLM flights from Great Falls to London

Our best KLM deals on Great Falls to London flight tickets

KLM

15 Nov

GTF05:35Great Falls

18h 30m

2 stops

LHR07:05London Heathrow

9 Dec

LHR17:50London Heathrow

30h 51m

2 stops

GTF17:41Great Falls

£654

KLM

15 Nov

GTF05:35Great Falls

18h 30m

2 stops

LHR07:05London Heathrow

9 Dec

LHR10:45London Heathrow

13h 56m

1 stop

GTF17:41Great Falls

£676

United Airlines flights from Great Falls to London

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

United Airlines

7 Dec

GTF14:25Great Falls

12h 15m

1 stop

LHR09:40London Heathrow

11 Dec

LHR07:30London Heathrow

36h 59m

2 stops

GTF13:29Great Falls

£660

United Airlines

7 Dec

GTF06:15Great Falls

20h 25m

1 stop

LHR09:40London Heathrow

11 Dec

LHR15:00London Heathrow

37h 20m

2 stops

GTF21:20Great Falls

£663

United Airlines

7 Dec

GTF06:15Great Falls

17h 55m

2 stops

LHR07:10London Heathrow

11 Dec

LHR07:30London Heathrow

20h 50m

2 stops

GTF21:20Great Falls

£663

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Sun 15/11

05:35-07:05

2 stops18h 30m

London Heathrow

Wed 9/12

17:50-17:41

2 stops30h 51m

£654

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Mon 7/12

14:25-09:40

1 stop12h 15m

London Heathrow

Fri 11/12

07:30-13:29

2 stops36h 59m

£660

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Mon 7/12

16:55-12:20

1 stop12h 25m

London Heathrow

Fri 11/12

14:45-16:13

1 stop32h 28m

£661

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Mon 7/12

06:15-09:40

1 stop20h 25m

London Heathrow

Fri 11/12

15:00-21:20

2 stops37h 20m

£663

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Mon 7/12

06:15-07:10

2 stops17h 55m

London Heathrow

Fri 11/12

07:30-21:20

2 stops20h 50m

£663

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Mon 7/12

06:15-11:05

2 stops21h 50m

London Heathrow

Fri 11/12

11:10-21:20

2 stops41h 10m

£666

Fastest return journey

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Mon 2/11

13:18-10:00

1 stop13h 42m

London Heathrow

Thu 19/11

10:45-17:41

1 stop13h 56m

£672

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Mon 2/11

14:45-09:40

1 stop11h 55m

London Heathrow

Fri 20/11

11:35-21:38

1 stop17h 03m

£674

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Wed 11/11

13:13-13:45

2 stops17h 32m

London Heathrow

Wed 18/11

20:25-17:41

2 stops28h 16m

£675

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Sun 15/11

05:35-07:05

2 stops18h 30m

London Heathrow

Wed 9/12

10:45-17:41

1 stop13h 56m

£676

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted 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

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

Delta and United Airlines are the most popular carriers operating from Great Falls to London

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	11h 55m
Direct flights	None

The fastest flight from Great Falls to London takes 11h 55m

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 11h 55m, 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

Wembley

Gatwick

Milton Keynes

Luton

Southend-on-Sea

Slough

Ipswich

Maidstone

Folkestone

Ilford

Hastings

Canterbury

Guildford

Chichester

Hayes

Bedford

Harlow

Colchester

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.

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Cheap flights from Great Falls to London from £510

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 17/12. 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

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Big names, great deals

Big names, great deals

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Filter for what you want

Trusted and free

Trusted and free

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KLM flights from Great Falls to London

Our best KLM 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.

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

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

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

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.

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

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