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

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

How long does it take to fly to London Heathrow Airport?

If you’re flying from a popular airport in Montana, such as Billings or Great Falls, and flying into London Heathrow Airport, then you can expect flight times to average 11h 35m and 12h 05m, respectively.

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

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

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

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 Heathrow Airport.

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

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

£246 Cheap Flights from Montana to London Heathrow Airport in 2026

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Find the cheapest flights from Montana to London

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

08:40 - 12:50

COD

LHR

21h 10m

2 stops

08:30 - 12:53

LHR

COD

35h 23m

2 stops

£590United Airlines

Wed, 30 Sep - Fri, 2 Oct

13:28 - 11:35

COD

LHR

39h 07m

2 stops

07:30 - 21:38

LHR

COD

21h 08m

2 stops

£599United Airlines

Tue, 29 Sep - Fri, 2 Oct

08:30 - 12:10

BZN

LHR

20h 40m

1 stop

08:40 - 23:53

LHR

BZN

22h 13m

2 stops

£647Delta

Wed, 2 Sep - Tue, 15 Sep

06:00 - 10:40

BZN

LHR

21h 40m

2 stops

08:40 - 23:53

LHR

BZN

22h 13m

2 stops

£650Delta

Tue, 1 Sep - Tue, 15 Sep

07:00 - 08:35

BIL

LHR

42h 35m

2 stops

17:40 - 09:41

LHR

BIL

47h 01m

2 stops

£663Air Canada

Mon, 31 Aug - Wed, 16 Sep

17:57 - 09:35

BIL

LHR

56h 38m

2 stops

17:40 - 09:41

LHR

BIL

47h 01m

2 stops

£667Air Canada

Sun, 30 Aug - Wed, 16 Sep

12:50 - 10:00

MSO

LHR

14h 10m

1 stop

12:25 - 20:12

LHR

MSO

14h 47m

1 stop

£669KLM

Wed, 7 Oct - Wed, 14 Oct

12:50 - 10:00

MSO

LHR

14h 10m

1 stop

12:50 - 00:31

LHR

MSO

18h 41m

2 stops

£672KLM

Wed, 7 Oct - Wed, 14 Oct

14:25 - 16:40

BIL

LHR

19h 15m

2 stops

20:25 - 21:00

LHR

BIL

31h 35m

2 stops

£673Lufthansa

Wed, 2 Sep - Mon, 14 Sep

12:30 - 06:45

GTF

LHR

35h 15m

1 stop

14:50 - 21:28

LHR

GTF

13h 38m

1 stop

£756Lufthansa

Sat, 1 Aug - Thu, 13 Aug

United Airlines flights from Montana to London Heathrow Airport

Our best United Airlines deals on Montana to London Heathrow Airport flight tickets

United Airlines

30 Sept

COD08:40Cody E.E. Faust

21h 10m

2 stops

LHR12:50London Heathrow

2 Oct

LHR08:30London Heathrow

35h 23m

2 stops

COD12:53Cody E.E. Faust

£590

United Airlines

29 Sept

COD13:28Cody E.E. Faust

39h 07m

2 stops

LHR11:35London Heathrow

2 Oct

LHR07:30London Heathrow

21h 08m

2 stops

COD21:38Cody E.E. Faust

£599

United Airlines

1 Sept

BIL14:25Billings Logan Intl

12h 15m

1 stop

LHR09:40London Heathrow

15 Sept

LHR06:55London Heathrow

17h 21m

2 stops

BIL17:16Billings Logan Intl

£647

Delta flights from Montana to London Heathrow Airport

Our best Delta deals on Montana to London Heathrow Airport flight tickets

Delta

2 Sept

BZN08:30Bozeman Gallatin Field

20h 40m

1 stop

LHR12:10London Heathrow

15 Sept

LHR08:40London Heathrow

22h 13m

2 stops

BZN23:53Bozeman Gallatin Field

£647

Delta

1 Sept

BZN06:00Bozeman Gallatin Field

21h 40m

2 stops

LHR10:40London Heathrow

15 Sept

LHR08:40London Heathrow

22h 13m

2 stops

BZN23:53Bozeman Gallatin Field

£650

Delta

1 Sept

BZN08:30Bozeman Gallatin Field

24h 05m

1 stop

LHR15:35London Heathrow

15 Sept

LHR06:30London Heathrow

22h 54m

2 stops

BZN22:24Bozeman Gallatin Field

£651

momondo Fare Finder

Use the filters below to find and compare flights from Montana to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CodyLondon

COD - LHR

CODLHR

Cody E.E. Faust

Wed 30/9

08:40-12:50

2 stops21h 10m

London Heathrow

Fri 2/10

08:30-12:53

2 stops35h 23m

£590

CodyLondon

COD - LHR

CODLHR

Cody E.E. Faust

Tue 29/9

13:28-11:35

2 stops39h 07m

London Heathrow

Fri 2/10

07:30-21:38

2 stops21h 08m

£599

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Wed 2/9

08:30-12:10

1 stop20h 40m

London Heathrow

Tue 15/9

08:40-23:53

2 stops22h 13m

£647

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Tue 1/9

06:00-10:40

2 stops21h 40m

London Heathrow

Tue 15/9

08:40-23:53

2 stops22h 13m

£650

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Mon 31/8

07:00-08:35

2 stops42h 35m

London Heathrow

Wed 16/9

17:40-09:41

2 stops47h 01m

£663

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Sun 30/8

17:57-09:35

2 stops56h 38m

London Heathrow

Wed 16/9

17:40-09:41

2 stops47h 01m

£667

Fastest return journey

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Wed 7/10

12:50-10:00

1 stop14h 10m

London Heathrow

Wed 14/10

12:25-20:12

1 stop14h 47m

£669

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Wed 7/10

12:50-10:00

1 stop14h 10m

London Heathrow

Wed 14/10

12:50-00:31

2 stops18h 41m

£672

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Wed 2/9

14:25-16:40

2 stops19h 15m

London Heathrow

Mon 14/9

20:25-21:00

2 stops31h 35m

£673

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sat 1/8

12:30-06:45

1 stop35h 15m

London Heathrow

Thu 13/8

14:50-21:28

1 stop13h 38m

£756

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 Heathrow Airport

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

Can stopping save me money on Montana to London Heathrow Airport flights?

You could potentially save up to 38% on your flight if you consider stops on a Montana to London Heathrow Airport flight.

Cheap Montana to London Heathrow Airport flight deals and tips

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

Fastest flight time	12h 14m
Direct flights	None

The fastest flight from Montana to London Heathrow Airport takes 12h 14m

There are no direct flights from Montana to London Heathrow Airport. There are no popular flight routes from Montana to London Heathrow Airport.

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Frequently asked questions about flying from Montana to London Heathrow Airport

When did momondo last update prices for flights from Montana to London Heathrow Airport?
Prices for flights from Montana to London Heathrow Airport were last updated today.
How old do you have to be to fly from Montana to London Heathrow Airport?
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 Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents you'll need for your trip to London Heathrow Airport 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 Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Eastbourne

Milton Keynes

Luton

Gatwick

Stratford-upon-Avon

Slough

Maidstone

Northampton

Wembley

Swindon

Southend-on-Sea

Ipswich

Canterbury

Ilford

Guildford

Hayes

Poole

Dover

Chelmsford

Folkestone

Why use momondo?

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

Finding the right flight to London from Montana 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 London quick and easy, saving you time and money.

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?

momondo helps you find the best flight between Montana and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Montana to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.