How long does it take to fly to London?

Flight times from Montana to London vary, but if you’re flying out of Missoula and flying into London Heathrow Airport (one of the most popular routes), then the duration is 12h 05m on average. Another popular route from Montana to London is flying from Bozeman to London Heathrow Airport, which will take roughly 12h 20m. Keep in mind that layovers or delays could extend your travel time.

What is the cheapest airline that flies from Montana to London?

KLM, United Airlines, and Lufthansa are the most popular carriers operating from Montana to London

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

Prices for flights from Montana to London were last updated today.

How old do you have to be to fly from Montana to London?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montana to London.

What documentation or ID do you need to fly to London?

The travel and health documents you'll need for your trip to London 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 London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£237 Cheap Flights from Montana to London in 2025

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Find the cheapest flights from Montana to London

Round-trip

One-way

Last minute

Cheap return flights

13:05 - 09:50GTF-LHR

13h 45m1 stop

06:30 - 17:29LHR-GTF

17h 59m2 stops

£437KLM

Find Deal

Mon, 29 Sep - Wed, 8 Oct

13:05 - 20:00GTF-LHR

23h 55m2 stops

06:15 - 22:28LHR-GTF

23h 13m2 stops

£439Delta

Find Deal

Sat, 20 Sep - Tue, 30 Sep

05:30 - 09:50MSO-LHR

21h 20m1 stop

06:15 - 17:40LHR-MSO

18h 25m2 stops

£441Virgin Atlantic

Find Deal

Wed, 15 Oct - Wed, 22 Oct

05:35 - 10:00MSO-LHR

21h 25m1 stop

10:45 - 17:27LHR-MSO

13h 42m1 stop

£445

Find Deal

Wed, 26 Nov - Wed, 3 Dec

14:29 - 13:30BZN-LHR

16h 01m1 stop

06:15 - 17:39LHR-BZN

18h 24m2 stops

£470Virgin Atlantic

Find Deal

Wed, 15 Oct - Wed, 22 Oct

17:20 - 09:40HLN-LHR

33h 20m1 stop

14:05 - 21:11LHR-HLN

38h 06m2 stops

£473United Airlines

Find Deal

Mon, 25 Aug - Tue, 2 Sep

14:30 - 12:20HLN-LHR

14h 50m1 stop

14:05 - 21:11LHR-HLN

38h 06m2 stops

£474United Airlines

Find Deal

Mon, 25 Aug - Tue, 2 Sep

13:05 - 09:50GTF-LHR

13h 45m1 stop

06:30 - 17:27LHR-GTF

17h 57m2 stops

£516

Find Deal

Tue, 16 Sep - Tue, 30 Sep

05:00 - 11:50BIL-LHR

23h 50m2 stops

15:50 - 20:49LHR-BIL

35h 59m2 stops

£521Air Canada

Find Deal

Thu, 9 Oct - Wed, 15 Oct

07:00 - 10:00BIL-LHR

20h 00m2 stops

15:50 - 20:49LHR-BIL

35h 59m2 stops

£559Air Canada

Find Deal

Thu, 9 Oct - Wed, 15 Oct

United Airlines flights from Montana to London

Our best United Airlines deals on Montana to London flight tickets

United Airlines

25 Aug

HLN17:20Helena

33h 20m

1 stop

LHR09:40London Heathrow

2 Sept

LHR14:05London Heathrow

38h 06m

2 stops

HLN21:11Helena

£473

Find similar

United Airlines

25 Aug

HLN14:30Helena

14h 50m

1 stop

LHR12:20London Heathrow

2 Sept

LHR14:05London Heathrow

38h 06m

2 stops

HLN21:11Helena

£474

Find similar

United Airlines

14 Sept

GTF07:00Great Falls

22h 20m

1 stop

LHR12:20London Heathrow

2 Oct

LHR12:05London Heathrow

32h 21m

2 stops

GTF13:26Great Falls

£475

Find similar

KLM flights from Montana to London

Our best KLM deals on Montana to London flight tickets

KLM

29 Sept

GTF13:05Great Falls

13h 45m

1 stop

LHR09:50London Heathrow

8 Oct

LHR06:30London Heathrow

17h 59m

2 stops

GTF17:29Great Falls

£437

Find similar

KLM

29 Sept

GTF13:05Great Falls

18h 10m

2 stops

LHR14:15London Heathrow

8 Oct

LHR06:30London Heathrow

17h 59m

2 stops

GTF17:29Great Falls

£441

Find similar

KLM

29 Sept

GTF13:05Great Falls

13h 45m

1 stop

LHR09:50London Heathrow

8 Oct

LHR11:00London Heathrow

19h 06m

1 stop

GTF23:06Great Falls

£442

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 29/9

13:05-09:50

1 stop13h 45m

London Heathrow

Wed 8/10

06:30-17:29

2 stops17h 59m

£437

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sat 20/9

13:05-20:00

2 stops23h 55m

London Heathrow

Tue 30/9

06:15-22:28

2 stops23h 13m

£439

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Wed 15/10

05:30-09:50

1 stop21h 20m

London Heathrow

Wed 22/10

06:15-17:40

2 stops18h 25m

£441

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Wed 26/11

05:35-10:00

1 stop21h 25m

London Heathrow

Wed 3/12

10:45-17:27

1 stop13h 42m

£445

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Wed 15/10

14:29-13:30

1 stop16h 01m

London Heathrow

Wed 22/10

06:15-17:39

2 stops18h 24m

£470

HelenaLondon

HLN - LHR

HLNLHR

Helena

Mon 25/8

17:20-09:40

1 stop33h 20m

London Heathrow

Tue 2/9

14:05-21:11

2 stops38h 06m

£473

HelenaLondon

HLN - LHR

HLNLHR

Helena

Mon 25/8

14:30-12:20

1 stop14h 50m

London Heathrow

Tue 2/9

14:05-21:11

2 stops38h 06m

£474

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Tue 16/9

13:05-09:50

1 stop13h 45m

London Heathrow

Tue 30/9

06:30-17:27

2 stops17h 57m

£516

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Thu 9/10

05:00-11:50

2 stops23h 50m

London Heathrow

Wed 15/10

15:50-20:49

2 stops35h 59m

£521

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Thu 9/10

07:00-10:00

2 stops20h 00m

London Heathrow

Wed 15/10

15:50-20:49

2 stops35h 59m

£559

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 London

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 London?

The cheapest month to fly to London from Montana is in February. Flight prices, which tend to average around £561, are often lower during this time because this is during the off-season. The month of March is another great option to travel to London, with average flight prices from Montana averaging around £573.

Can stopping save me money on Montana to London flights?

You could potentially save up to 6% on your flight if you consider stops on a Montana to London flight.

Cheap Montana to London flight deals and tips

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

Best price found	£237
Fastest flight time	11h 23m
Direct flights	None
Airports in London	2 airports

The best one-way flight to London from Montana in the past 72 hours is £237. The best return flight deal from Montana to London found on momondo in the last 72 hours is £437.

The fastest flight from Montana to London takes 11h 23m

There are no direct flights from Montana to London. Popular non-direct routes for this connection are Bozeman Gallatin Field Airport - London Heathrow Airport, Helena Airport - London Heathrow Airport and Great Falls Airport - London Heathrow Airport.

There are 2 airports near London: London City (LCY), London Heathrow (LHR)

Search flight deals

When did momondo last update prices for flights from Montana to London?
Prices for flights from Montana to London were last updated today.
How old do you have to be to fly from Montana to London?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montana to London.
What documentation or ID do you need to fly to London?
The travel and health documents you'll need for your trip to London 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 London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Eastbourne

Milton Keynes

Luton

Slough

Southend-on-Sea

Maidstone

Canterbury

Gatwick

Ipswich

Ilford

Dartford

Guildford

Colchester

Worthing

Hounslow

Dover

Winchester

Margate

Chelmsford

Bedford

Why use momondo?

Why should I use momondo to find a flight deal from Montana to London?

It is quick and easy to find Montana to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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

Yes. All flights to London from Montana on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Montana to London?

Once you have performed a search for Montana to London 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 London right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Montana to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.