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Cheap flights from Great Falls to the United Kingdom from £616

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 the United Kingdom departing on 9/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Great Falls to the United Kingdom

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
06:10 - 09:40GTF-LHR
20h 30m1 stop
United Airlines Logo
10:50 - 13:29LHR-GTF
33h 39m2 stops
£616United Airlines
Find Deal
Mon, 9 Feb - Thu, 28 May
United Airlines Logo
06:10 - 15:50GTF-LHR
26h 40m2 stops
United Airlines Logo
10:50 - 13:29LHR-GTF
33h 39m2 stops
£622United Airlines
Find Deal
Mon, 9 Feb - Thu, 28 May
United Airlines Logo
14:29 - 09:40GTF-LHR
12h 11m1 stop
United Airlines Logo
11:25 - 21:15LHR-GTF
16h 50m1 stop
£638United Airlines
Find Deal
Mon, 9 Feb - Thu, 28 May
KLM Logo
18:15 - 16:45GTF-NCL
15h 30m2 stops
KLM Logo
15:40 - 17:44NCL-GTF
57h 04m2 stops
£650KLM
Find Deal
Fri, 3 Apr - Tue, 7 Apr
KLM Logo
18:15 - 16:25GTF-EDI
15h 10m2 stops
KLM Logo
17:15 - 17:44EDI-GTF
31h 29m2 stops
£651KLM
Find Deal
Fri, 3 Apr - Tue, 7 Apr
Delta Logo
13:10 - 10:00GTF-LHR
14h 50m1 stop
Delta Logo
09:55 - 17:44LHR-GTF
38h 49m2 stops
£660Delta
Find Deal
Fri, 27 Mar - Tue, 31 Mar
Delta Logo
13:10 - 10:00GTF-LHR
14h 50m1 stop
Delta Logo
10:55 - 17:44LHR-GTF
13h 49m1 stop
£681Delta
Find Deal
Fri, 27 Mar - Tue, 31 Mar
KLM Logo
13:10 - 16:45GTF-NCL
20h 35m2 stops
KLM Logo
09:30 - 17:44NCL-GTF
39h 14m2 stops
£715KLM
Find Deal
Fri, 3 Apr - Tue, 7 Apr
KLM Logo
18:15 - 16:45GTF-NCL
15h 30m2 stops
KLM Logo
15:40 - 22:53NCL-GTF
38h 13m2 stops
£716KLM
Find Deal
Fri, 3 Apr - Tue, 7 Apr
Multiple Airlines Logo
20:00 - 12:20GTF-LHR
33h 20m1 stop
Multiple Airlines Logo
09:50 - 16:29LHR-GTF
13h 39m1 stop
£836Multiple Airlines
Find Deal
Mon, 9 Feb - Thu, 28 May

Delta flights from Great Falls to United Kingdom

Our best Delta deals on Great Falls to United Kingdom flight tickets
Delta
27 Mar
GTF13:10Great Falls
14h 50m
1 stop
LHR10:00London Heathrow
31 Mar
LHR09:55London Heathrow
38h 49m
2 stops
GTF17:44Great Falls
£660
Find similar
Delta
27 Mar
GTF13:10Great Falls
14h 50m
1 stop
LHR10:00London Heathrow
31 Mar
LHR10:55London Heathrow
13h 49m
1 stop
GTF17:44Great Falls
£681
Find similar
Delta
27 Mar
GTF13:10Great Falls
14h 50m
1 stop
LHR10:00London Heathrow
31 Mar
LHR08:40London Heathrow
40h 04m
2 stops
GTF17:44Great Falls
£842
Find similar

United Airlines flights from Great Falls to United Kingdom

Our best United Airlines deals on Great Falls to United Kingdom flight tickets
United Airlines
9 Feb
GTF06:10Great Falls
20h 30m
1 stop
LHR09:40London Heathrow
28 May
LHR10:50London Heathrow
33h 39m
2 stops
GTF13:29Great Falls
£616
Find similar
United Airlines
9 Feb
GTF06:10Great Falls
26h 40m
2 stops
LHR15:50London Heathrow
28 May
LHR10:50London Heathrow
33h 39m
2 stops
GTF13:29Great Falls
£622
Find similar
United Airlines
9 Feb
GTF14:29Great Falls
12h 11m
1 stop
LHR09:40London Heathrow
28 May
LHR11:25London Heathrow
16h 50m
1 stop
GTF21:15Great Falls
£638
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Great Falls to United Kingdom that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 7 November 2025.
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

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 9/2

06:10-09:40

1 stop20h 30m

London Heathrow

Thu 28/5

10:50-13:29

2 stops33h 39m

£616

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 9/2

06:10-15:50

2 stops26h 40m

London Heathrow

Thu 28/5

10:50-13:29

2 stops33h 39m

£622

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 9/2

14:29-09:40

1 stop12h 11m

London Heathrow

Thu 28/5

11:25-21:15

1 stop16h 50m

£638

Great FallsNewcastle upon Tyne

GTF - NCL

GTFNCL

Great Falls

Fri 3/4

18:15-16:45

2 stops15h 30m

Newcastle upon Tyne

Tue 7/4

15:40-17:44

2 stops57h 04m

£650

Great FallsEdinburgh

GTF - EDI

GTFEDI

Great Falls

Fri 3/4

18:15-16:25

2 stops15h 10m

Edinburgh Turnhouse

Tue 7/4

17:15-17:44

2 stops31h 29m

£651

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Fri 27/3

13:10-10:00

1 stop14h 50m

London Heathrow

Tue 31/3

09:55-17:44

2 stops38h 49m

£660

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Fri 27/3

13:10-10:00

1 stop14h 50m

London Heathrow

Tue 31/3

10:55-17:44

1 stop13h 49m

£681

Great FallsNewcastle upon Tyne

GTF - NCL

GTFNCL

Great Falls

Fri 3/4

13:10-16:45

2 stops20h 35m

Newcastle upon Tyne

Tue 7/4

09:30-17:44

2 stops39h 14m

£715

Great FallsNewcastle upon Tyne

GTF - NCL

GTFNCL

Great Falls

Fri 3/4

18:15-16:45

2 stops15h 30m

Newcastle upon Tyne

Tue 7/4

15:40-22:53

2 stops38h 13m

£716

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 9/2

20:00-12:20

1 stop33h 20m

London Heathrow

Thu 28/5

09:50-16:29

1 stop13h 39m

£836

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to the United Kingdom from

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

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

Direct flights

None
There are no direct flights from Great Falls to United Kingdom. There are no popular flight routes from Great Falls to United Kingdom.
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  • 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.

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