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.

£682 Cheap Flights from Great Falls to London in 2026/27

Find the cheapest flights from Great Falls to London

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

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

13h 47m1 stop Salt Lake City

20:25 - 17:39LHR London Heathrow-GTF Great Falls

28h 14m2 stops Amsterdam Schiphol Salt Lake City

£682Multiple Airlines

Mon, 30 Nov - Thu, 10 Dec

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

11h 55m1 stop Denver Intl

06:35 - 21:13LHR London Heathrow-GTF Great Falls

21h 38m2 stops Munich Franz Josef Strauss Denver Intl

£683United Airlines

Sun, 29 Nov - Tue, 8 Dec

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

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

20:25 - 17:39LHR London Heathrow-GTF Great Falls

28h 14m2 stops Amsterdam Schiphol Salt Lake City

£686Multiple Airlines

Mon, 16 Nov - Mon, 23 Nov

18:19 - 10:00GTF Great Falls-LHR London Heathrow

32h 41m1 stop Salt Lake City

06:20 - 17:39LHR London Heathrow-GTF Great Falls

18h 19m2 stops Paris Charles de Gaulle Salt Lake City

£688Delta

Sun, 29 Nov - Thu, 10 Dec

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

11h 55m1 stop Denver Intl

07:30 - 21:38LHR London Heathrow-GTF Great Falls

21h 08m2 stops Frankfurt am Main Denver Intl

£690United Airlines

Wed, 11 Nov - Wed, 18 Nov

05:30 - 11:35GTF Great Falls-LHR London Heathrow

23h 05m2 stops Salt Lake City Los Angeles

06:20 - 17:39LHR London Heathrow-GTF Great Falls

18h 19m2 stops Paris Charles de Gaulle Salt Lake City

£691Delta

Mon, 30 Nov - Tue, 8 Dec

14:47 - 09:40GTF Great Falls-LHR London Heathrow

11h 53m1 stop Denver Intl

15:00 - 21:13LHR London Heathrow-GTF Great Falls

37h 13m2 stops Toronto Pearson Intl Denver Intl

£693United Airlines

Tue, 1 Dec - Thu, 10 Dec

06:30 - 05:55GTF Great Falls-LHR London Heathrow

16h 25m2 stops Denver Intl Chicago O'Hare Intl

07:30 - 21:38LHR London Heathrow-GTF Great Falls

21h 08m2 stops Frankfurt am Main Denver Intl

£694United Airlines

Wed, 11 Nov - Wed, 18 Nov

18:19 - 06:25GTF Great Falls-LHR London Heathrow

29h 06m2 stops Salt Lake City Atlanta Hartsfield-Jackson

06:20 - 22:29LHR London Heathrow-GTF Great Falls

23h 09m2 stops Paris Charles de Gaulle Salt Lake City

£696Delta

Sun, 29 Nov - Fri, 11 Dec

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

£704United Airlines

Tue, 3 Nov - Tue, 17 Nov

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

United Airlines flights from Great Falls to London

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

United Airlines

29 Nov

GTF14:45Great Falls

11h 55m

1 stop

LHR09:40London Heathrow

8 Dec

LHR06:35London Heathrow

21h 38m

2 stops

GTF21:13Great Falls

£683

United Airlines

11 Nov

GTF14:45Great Falls

11h 55m

1 stop

LHR09:40London Heathrow

18 Nov

LHR07:30London Heathrow

21h 08m

2 stops

GTF21:38Great Falls

£690

United Airlines

1 Dec

GTF14:47Great Falls

11h 53m

1 stop

LHR09:40London Heathrow

10 Dec

LHR15:00London Heathrow

37h 13m

2 stops

GTF21:13Great Falls

£693

Delta flights from Great Falls to London

Our best Delta deals on Great Falls to London flight tickets

Delta

29 Nov

GTF18:19Great Falls

32h 41m

1 stop

LHR10:00London Heathrow

10 Dec

LHR06:20London Heathrow

18h 19m

2 stops

GTF17:39Great Falls

£688

Delta

30 Nov

GTF05:30Great Falls

23h 05m

2 stops

LHR11:35London Heathrow

8 Dec

LHR06:20London Heathrow

18h 19m

2 stops

GTF17:39Great Falls

£691

Delta

29 Nov

GTF18:19Great Falls

29h 06m

2 stops

LHR06:25London Heathrow

11 Dec

LHR06:20London Heathrow

23h 09m

2 stops

GTF22:29Great Falls

£696

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Mon 30/11

13:13-10:00

1 stop13h 47m

London Heathrow

Thu 10/12

20:25-17:39

2 stops28h 14m

£682

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Sun 29/11

14:45-09:40

1 stop11h 55m

London Heathrow

Tue 8/12

06:35-21:13

2 stops21h 38m

£683

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Mon 16/11

13:13-13:45

2 stops17h 32m

London Heathrow

Mon 23/11

20:25-17:39

2 stops28h 14m

£686

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Sun 29/11

18:19-10:00

1 stop32h 41m

London Heathrow

Thu 10/12

06:20-17:39

2 stops18h 19m

£688

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Wed 11/11

14:45-09:40

1 stop11h 55m

London Heathrow

Wed 18/11

07:30-21:38

2 stops21h 08m

£690

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Mon 30/11

05:30-11:35

2 stops23h 05m

London Heathrow

Tue 8/12

06:20-17:39

2 stops18h 19m

£691

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Tue 1/12

14:47-09:40

1 stop11h 53m

London Heathrow

Thu 10/12

15:00-21:13

2 stops37h 13m

£693

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Wed 11/11

06:30-05:55

2 stops16h 25m

London Heathrow

Wed 18/11

07:30-21:38

2 stops21h 08m

£694

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Sun 29/11

18:19-06:25

2 stops29h 06m

London Heathrow

Fri 11/12

06:20-22:29

2 stops23h 09m

£696

Fastest return journey

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Tue 3/11

14:45-09:40

1 stop11h 55m

London Heathrow

Tue 17/11

11:35-21:38

1 stop17h 03m

£704

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

Best price found	£682
Fastest flight time	12h 03m
Direct flights	None

The best flight deal from Great Falls to London found on momondo in the last 72 hours is £682

The fastest flight from Great Falls to London takes 12h 03m

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 03m, 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

Southend-on-Sea

Luton

Slough

Ipswich

Maidstone

Folkestone

Hastings

Ilford

Canterbury

Chichester

Hayes

Bedford

Colchester

Guildford

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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Sat 31/10

Sat 7/11

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United Kingdom

Nearby airports

Cabin classes

Other United Kingdom destinations

Complete your trip

Feeling lucky

Fly into one of these airports located in London

London City Airport

London Gatwick Airport

London Heathrow Airport

London Luton Airport

London Southend Airport

London Stansted Airport

Cheap flights from Great Falls to London from £682

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 30/11. 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

Cheap last-minute 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

Delta flights from Great Falls to London

Our best Delta 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

Best price found

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

Complete your trip to London

Explore popular destinations other users love

According to popular flight searches on momondo this year