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.

£462 Cheap Flights from Great Falls to the United Kingdom in 2026

1 adult

0 bags

Voted winner of Europe's Best Travel App 2023

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.

06:15 - 10:00

GTF

LHR

20h 45m

2 stops

07:25 - 21:34

LHR

GTF

21h 09m

2 stops

£793United Airlines

Sun, 17 May - Thu, 4 Jun

14:35 - 20:40

GTF

LHR

23h 05m

2 stops

07:25 - 21:34

LHR

GTF

21h 09m

2 stops

£794United Airlines

Mon, 18 May - Thu, 4 Jun

14:35 - 06:30

GTF

LHR

32h 55m

2 stops

06:55 - 21:18

LHR

GTF

21h 23m

2 stops

£797United Airlines

Tue, 5 May - Tue, 19 May

06:15 - 10:00

GTF

LHR

20h 45m

2 stops

14:05 - 13:41

LHR

GTF

30h 36m

2 stops

£799United Airlines

Sun, 17 May - Tue, 2 Jun

14:35 - 20:40

GTF

LHR

23h 05m

2 stops

14:05 - 13:41

LHR

GTF

30h 36m

2 stops

£800United Airlines

Mon, 18 May - Tue, 2 Jun

13:09 - 10:00

GTF

LHR

13h 51m

1 stop

06:30 - 17:39

LHR

GTF

18h 09m

2 stops

£811KLM

Mon, 4 May - Tue, 19 May

18:20 - 10:00

GTF

LHR

32h 40m

1 stop

06:30 - 22:26

LHR

GTF

22h 56m

2 stops

£811Delta

Sun, 3 May - Wed, 20 May

13:09 - 15:35

GTF

LHR

19h 26m

2 stops

20:55 - 17:39

LHR

GTF

27h 44m

2 stops

£814KLM

Mon, 4 May - Mon, 18 May

14:35 - 21:25

GTF

LHR

23h 50m

2 stops

11:25 - 21:34

LHR

GTF

17h 09m

1 stop

£815United Airlines

Mon, 18 May - Fri, 5 Jun

13:09 - 10:00

GTF

LHR

13h 51m

1 stop

06:30 - 12:27

LHR

GTF

36h 57m

2 stops

£817Delta

Mon, 4 May - Fri, 22 May

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United Airlines flights from Great Falls to United Kingdom

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

United Airlines

17 May

GTF06:15Great Falls

20h 45m

2 stops

LHR10:00London Heathrow

5 Jun

LHR07:25London Heathrow

21h 09m

2 stops

GTF21:34Great Falls

£793

United Airlines

18 May

GTF14:35Great Falls

23h 05m

2 stops

LHR20:40London Heathrow

4 Jun

LHR07:25London Heathrow

21h 09m

2 stops

GTF21:34Great Falls

£794

United Airlines

5 May

GTF14:35Great Falls

32h 55m

2 stops

LHR06:30London Heathrow

19 May

LHR06:55London Heathrow

21h 23m

2 stops

GTF21:18Great Falls

£797

KLM flights from Great Falls to United Kingdom

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

KLM

4 May

GTF13:09Great Falls

13h 51m

1 stop

LHR10:00London Heathrow

19 May

LHR06:30London Heathrow

18h 09m

2 stops

GTF17:39Great Falls

£811

KLM

4 May

GTF13:09Great Falls

19h 26m

2 stops

LHR15:35London Heathrow

18 May

LHR20:55London Heathrow

27h 44m

2 stops

GTF17:39Great Falls

£814

KLM

19 May

GTF13:07Great Falls

14h 53m

1 stop

LHR11:00London Heathrow

2 Jun

LHR06:30London Heathrow

18h 09m

2 stops

GTF17:39Great Falls

£824

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

Sun 17/5

06:15-10:00

2 stops20h 45m

London Heathrow

Thu 4/6

07:25-21:34

2 stops21h 09m

£793

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 18/5

14:35-20:40

2 stops23h 05m

London Heathrow

Thu 4/6

07:25-21:34

2 stops21h 09m

£794

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Tue 5/5

14:35-06:30

2 stops32h 55m

London Heathrow

Tue 19/5

06:55-21:18

2 stops21h 23m

£797

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sun 17/5

06:15-10:00

2 stops20h 45m

London Heathrow

Tue 2/6

14:05-13:41

2 stops30h 36m

£799

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 18/5

14:35-20:40

2 stops23h 05m

London Heathrow

Tue 2/6

14:05-13:41

2 stops30h 36m

£800

Fastest return journey

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 4/5

13:09-10:00

1 stop13h 51m

London Heathrow

Tue 19/5

06:30-17:39

2 stops18h 09m

£811

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sun 3/5

18:20-10:00

1 stop32h 40m

London Heathrow

Wed 20/5

06:30-22:26

2 stops22h 56m

£811

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 4/5

13:09-15:35

2 stops19h 26m

London Heathrow

Mon 18/5

20:55-17:39

2 stops27h 44m

£814

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 18/5

14:35-21:25

2 stops23h 50m

London Heathrow

Fri 5/6

11:25-21:34

1 stop17h 09m

£815

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 4/5

13:09-10:00

1 stop13h 51m

London Heathrow

Fri 22/5

06:30-12:27

2 stops36h 57m

£817

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 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	12h 05m
Direct flights	None

The fastest flight from Great Falls to United Kingdom takes 12h 05m

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.