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

United Airlines is the most popular carrier operating from Great Falls to United Kingdom

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

Prices for flights from Great Falls Airport to United Kingdom are updated daily.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Great Falls Airport to United Kingdom.

What documentation or ID do you need to fly to United Kingdom?

The travel and health documents you'll need for your trip to United Kingdom may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at United Kingdom. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£370 Cheap Flights from Great Falls to the United Kingdom in 2026

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Find the cheapest flights from Great Falls to the United Kingdom

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

14:25 - 12:25

GTF

LHR

15h 00m

1 stop

11:25 - 21:15

LHR

GTF

16h 50m

1 stop

£675United Airlines

Tue, 29 Sep - Tue, 6 Oct

14:25 - 09:40

GTF

LHR

12h 15m

1 stop

10:00 - 21:15

LHR

GTF

18h 15m

2 stops

£678United Airlines

Tue, 29 Sep - Tue, 6 Oct

18:20 - 10:00

GTF

LHR

32h 40m

1 stop

06:30 - 17:43

LHR

GTF

18h 13m

2 stops

£689Delta

Sun, 27 Sep - Wed, 7 Oct

05:30 - 15:35

GTF

LHR

27h 05m

2 stops

11:45 - 17:43

LHR

GTF

36h 58m

2 stops

£692Delta

Sun, 27 Sep - Tue, 6 Oct

06:15 - 09:40

GTF

LHR

20h 25m

1 stop

09:30 - 21:28

LHR

GTF

42h 58m

2 stops

£697United Airlines

Tue, 1 Sep - Sun, 6 Sep

06:15 - 06:30

GTF

LHR

17h 15m

2 stops

09:30 - 21:28

LHR

GTF

42h 58m

2 stops

£699United Airlines

Tue, 1 Sep - Sun, 6 Sep

18:20 - 10:00

GTF

LHR

32h 40m

1 stop

17:35 - 17:43

LHR

GTF

31h 08m

2 stops

£704Delta

Sun, 27 Sep - Mon, 5 Oct

14:35 - 06:30

GTF

LHR

32h 55m

2 stops

09:30 - 21:18

LHR

GTF

42h 48m

2 stops

£707United Airlines

Sat, 9 May - Tue, 19 May

14:25 - 12:35

GTF

LHR

15h 10m

1 stop

14:50 - 21:15

LHR

GTF

13h 25m

1 stop

£711United Airlines

Sun, 27 Sep - Thu, 8 Oct

13:07 - 11:50

GTF

EDI

15h 43m

2 stops

17:05 - 17:39

EDI

GTF

31h 34m

2 stops

£960Multiple Airlines

Sun, 24 May - Sun, 31 May

KLM flights from Great Falls to United Kingdom

Our best KLM deals on Great Falls to United Kingdom flight tickets

KLM

10 May

GTF18:19Great Falls

14h 56m

2 stops

LHR16:15London Heathrow

18 May

LHR20:55London Heathrow

27h 44m

2 stops

GTF17:39Great Falls

£753

KLM

8 May

GTF18:19Great Falls

32h 41m

1 stop

LHR10:00London Heathrow

20 May

LHR06:30London Heathrow

18h 09m

2 stops

GTF17:39Great Falls

£785

KLM

1 May

GTF18:20Great Falls

32h 40m

1 stop

LHR10:00London Heathrow

19 May

LHR06:30London Heathrow

18h 09m

2 stops

GTF17:39Great Falls

£802

Air France flights from Great Falls to United Kingdom

Our best Air France deals on Great Falls to United Kingdom flight tickets

Air France

27 Apr

GTF13:09Great Falls

13h 51m

1 stop

LHR10:00London Heathrow

12 May

LHR06:15London Heathrow

18h 24m

2 stops

GTF17:39Great Falls

£768

Air France

27 Apr

GTF13:09Great Falls

16h 56m

2 stops

LHR13:05London Heathrow

12 May

LHR06:15London Heathrow

18h 24m

2 stops

GTF17:39Great Falls

£771

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Tue 29/9

14:25-12:25

1 stop15h 00m

London Heathrow

Tue 6/10

11:25-21:15

1 stop16h 50m

£675

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Tue 29/9

14:25-09:40

1 stop12h 15m

London Heathrow

Tue 6/10

10:00-21:15

2 stops18h 15m

£678

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sun 27/9

18:20-10:00

1 stop32h 40m

London Heathrow

Wed 7/10

06:30-17:43

2 stops18h 13m

£689

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sun 27/9

05:30-15:35

2 stops27h 05m

London Heathrow

Tue 6/10

11:45-17:43

2 stops36h 58m

£692

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Tue 1/9

06:15-09:40

1 stop20h 25m

London Heathrow

Sun 6/9

09:30-21:28

2 stops42h 58m

£697

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Tue 1/9

06:15-06:30

2 stops17h 15m

London Heathrow

Sun 6/9

09:30-21:28

2 stops42h 58m

£699

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sun 27/9

18:20-10:00

1 stop32h 40m

London Heathrow

Mon 5/10

17:35-17:43

2 stops31h 08m

£704

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sat 9/5

14:35-06:30

2 stops32h 55m

London Heathrow

Tue 19/5

09:30-21:18

2 stops42h 48m

£707

Fastest return journey

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sun 27/9

14:25-12:35

1 stop15h 10m

London Heathrow

Thu 8/10

14:50-21:15

1 stop13h 25m

£711

Great FallsEdinburgh

GTF - EDI

GTFEDI

Great Falls

Sun 24/5

13:07-11:50

2 stops15h 43m

Edinburgh Turnhouse

Sun 31/5

17:05-17:39

2 stops31h 34m

£960

Flights are sorted by cheapest return flights first.

Showing 1-10 of 18 resultsSorted by cheapest first

How to get the cheapest flight ticket from Great Falls to United Kingdom

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

Prices

Airlines

Can stopping save me money on Great Falls to United Kingdom flights?

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

Cheap Great Falls to United Kingdom flight deals and tips

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

Fastest flight time	13h 15m
Direct flights	None

The fastest flight from Great Falls to United Kingdom takes 13h 15m

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

Search flight deals

Frequently asked questions about flying from Great Falls to the United Kingdom

When did momondo last update prices for flights from Great Falls Airport to United Kingdom?
Prices for flights from Great Falls Airport to United Kingdom are updated daily.
How old do you have to be to fly from Great Falls Airport to United Kingdom?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Great Falls Airport to United Kingdom.
What documentation or ID do you need to fly to United Kingdom?
The travel and health documents you'll need for your trip to United Kingdom may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at United Kingdom. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Great Falls to United Kingdom?

Finding the right flight to United Kingdom from Great Falls is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to United Kingdom quick and easy, saving you time and money.

Can I find flights from Great Falls to United Kingdom with flexible booking policies on momondo?

Flights from Great Falls to United Kingdom with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Great Falls to United Kingdom?

momondo provides multiple filters to help you find the best flight to United Kingdom from Great Falls. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to United Kingdom from Great Falls are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.