How long is the flight from Montana to United Kingdom?

The flight from Montana to United Kingdom depends on which airports you’re departing from and arriving to, and whether or not you have a layover. If you fly from Great Falls (a popular airport in Montana) to London Heathrow Airport (the most popular airport in United Kingdom), then the flight time is 11h 55m on average. If you fly from Kalispell (another popular airport in Montana) to London Heathrow Airport, then the average flight time is 12h 10m.

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

Delta, Air Canada, and Alaska Airlines are the most popular carriers operating from Montana to United Kingdom

When did momondo last update prices for flights from Montana to United Kingdom?

Prices for flights from Montana to United Kingdom are updated daily.

How old do you have to be to fly from Montana 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 Montana 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.

£248 Cheap Flights from Montana to the United Kingdom in 2026

Find the cheapest flights from Montana to the United Kingdom

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

14:30 - 16:50

HLN

LHR

43h 20m

2 stops

11:35 - 20:59

LHR

HLN

16h 24m

1 stop

£581United Airlines

Mon, 7 Dec - Thu, 10 Dec

14:30 - 16:50

HLN

LHR

43h 20m

2 stops

11:10 - 20:59

LHR

HLN

16h 49m

2 stops

£586United Airlines

Mon, 7 Dec - Thu, 10 Dec

14:30 - 08:30

HLN

LHR

35h 00m

2 stops

07:30 - 20:59

LHR

HLN

20h 29m

2 stops

£622United Airlines

Mon, 7 Dec - Thu, 10 Dec

07:00 - 08:25

HLN

LHR

42h 25m

2 stops

07:30 - 20:59

LHR

HLN

20h 29m

2 stops

£624United Airlines

Mon, 7 Dec - Thu, 10 Dec

16:57 - 12:20

GTF

LHR

12h 23m

1 stop

14:45 - 16:17

LHR

GTF

32h 32m

1 stop

£638Alaska Airlines

Tue, 3 Nov - Tue, 17 Nov

12:25 - 10:00

FCA

LHR

14h 35m

1 stop

17:50 - 17:35

LHR

FCA

30h 45m

2 stops

£648KLM

Mon, 9 Nov - Wed, 18 Nov

05:33 - 10:00

MSO

LHR

21h 27m

1 stop

08:40 - 19:57

LHR

MSO

18h 17m

2 stops

£648Delta

Mon, 16 Nov - Thu, 19 Nov

13:18 - 10:00

GTF

LHR

13h 42m

1 stop

17:50 - 17:41

LHR

GTF

30h 51m

2 stops

£648Multiple Airlines

Tue, 3 Nov - Tue, 17 Nov

18:27 - 10:00

GTF

LHR

32h 33m

1 stop

11:45 - 17:41

LHR

GTF

36h 56m

2 stops

£649Delta

Mon, 2 Nov - Mon, 16 Nov

05:33 - 10:00

MSO

LHR

21h 27m

1 stop

08:40 - 19:57

LHR

MSO

18h 17m

2 stops

£649Delta

Mon, 16 Nov - Thu, 19 Nov

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Air France flights from Montana to United Kingdom

Our best Air France deals on Montana to United Kingdom flight tickets

Air France

18 Nov

FCA12:25Kalispell Glacier Park

18h 20m

2 stops

LHR13:45London Heathrow

23 Nov

LHR19:20London Heathrow

29h 15m

2 stops

FCA17:35Kalispell Glacier Park

£667

Air France

18 Nov

FCA12:25Kalispell Glacier Park

18h 20m

2 stops

LHR13:45London Heathrow

23 Nov

LHR19:20London Heathrow

29h 15m

2 stops

FCA17:35Kalispell Glacier Park

£667

Air France

20 Oct

MSO08:33Missoula Johnson-Bell Field

18h 47m

1 stop

LHR10:20London Heathrow

30 Oct

LHR06:20London Heathrow

19h 34m

2 stops

MSO19:54Missoula Johnson-Bell Field

£675

KLM flights from Montana to United Kingdom

Our best KLM deals on Montana to United Kingdom flight tickets

KLM

9 Nov

FCA12:25Kalispell Glacier Park

14h 35m

1 stop

LHR10:00London Heathrow

18 Nov

LHR17:50London Heathrow

30h 45m

2 stops

FCA17:35Kalispell Glacier Park

£648

KLM

3 Nov

GTF05:40Great Falls

21h 20m

1 stop

LHR10:00London Heathrow

17 Nov

LHR17:50London Heathrow

30h 51m

2 stops

GTF17:41Great Falls

£649

KLM

3 Nov

GTF05:40Great Falls

18h 25m

2 stops

LHR07:05London Heathrow

17 Nov

LHR20:25London Heathrow

28h 16m

2 stops

GTF17:41Great Falls

£652

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

HelenaLondon

HLN - LHR

HLNLHR

Helena

Mon 7/12

14:30-16:50

2 stops43h 20m

London Heathrow

Thu 10/12

11:35-20:59

1 stop16h 24m

£581

HelenaLondon

HLN - LHR

HLNLHR

Helena

Mon 7/12

14:30-16:50

2 stops43h 20m

London Heathrow

Thu 10/12

11:10-20:59

2 stops16h 49m

£586

HelenaLondon

HLN - LHR

HLNLHR

Helena

Mon 7/12

14:30-08:30

2 stops35h 00m

London Heathrow

Thu 10/12

07:30-20:59

2 stops20h 29m

£622

HelenaLondon

HLN - LHR

HLNLHR

Helena

Mon 7/12

07:00-08:25

2 stops42h 25m

London Heathrow

Thu 10/12

07:30-20:59

2 stops20h 29m

£624

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Tue 3/11

16:57-12:20

1 stop12h 23m

London Heathrow

Tue 17/11

14:45-16:17

1 stop32h 32m

£638

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Mon 9/11

12:25-10:00

1 stop14h 35m

London Heathrow

Wed 18/11

17:50-17:35

2 stops30h 45m

£648

Fastest return journey

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Mon 16/11

05:33-10:00

1 stop21h 27m

London Heathrow

Thu 19/11

08:40-19:57

2 stops18h 17m

£648

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Tue 3/11

13:18-10:00

1 stop13h 42m

London Heathrow

Tue 17/11

17:50-17:41

2 stops30h 51m

£648

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 2/11

18:27-10:00

1 stop32h 33m

London Heathrow

Mon 16/11

11:45-17:41

2 stops36h 56m

£649

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Mon 16/11

05:33-10:00

1 stop21h 27m

London Heathrow

Thu 19/11

08:40-19:57

2 stops18h 17m

£649

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Montana 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

Other information

What is the cheapest month to fly to United Kingdom?

The cheapest month to fly to United Kingdom from Montana is in October. Flight prices, which tend to average around £574, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of October, then departing from Montana during the month April is also very affordable. Most momondo users find prices during this month for around £601.

Can stopping save me money on Montana to United Kingdom flights?

You could potentially save up to 12% on your flight if you consider stops on a Montana to United Kingdom flight.

Cheap Montana to United Kingdom flight deals and tips

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

Fastest flight time	11h 55m
Direct flights	None

The fastest flight from Montana to United Kingdom takes 11h 55m

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

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Frequently asked questions about flying from Montana to the United Kingdom

When did momondo last update prices for flights from Montana to United Kingdom?
Prices for flights from Montana to United Kingdom are updated daily.
How old do you have to be to fly from Montana 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 Montana 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 Montana to United Kingdom?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to United Kingdom from Montana.

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

momondo does allow users to show only those flights to United Kingdom from Montana which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Montana to United Kingdom flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to United Kingdom, momondo offers a useful price alert feature which will track prices for flights to United Kingdom from Montana and alert you when they change.