What airlines fly to London Heathrow Airport?

United Airlines, Delta and Virgin Atlantic are the top three most popular airlines that fly to London Heathrow Airport from Montana according to our data. United Airlines is the first choice among our users, with 85% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 3 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

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

JetBlue, 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?

On average, it takes 12h 05m to fly from Montana to London Heathrow Airport if you fly out of Billings (the most popular airport in Montana) and into London Heathrow Airport (the most popular airport in London Heathrow Airport). If you’re flying out of Bozeman and into London Heathrow Airport, then the flight time is around 13h 11m.

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

Prices for flights from Montana to London Heathrow Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Montana to London Heathrow Airport?

There are 3 operators available for flights from Montana to London Heathrow Airport as of December 2025.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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 required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$349 Cheap Flights from Montana to London Heathrow Airport in 2025/26

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Find the cheapest flights from Montana to London

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

8:45 am - 11:15 am

BZN

LHR

19h 30m1 stop

6:35 am - 6:15 pm

LHR

BZN

18h 40m2 stops

$598Lufthansa

Sat, Jan 24 - Sat, Jan 31

10:50 am - 5:05 pm

BZN

LHR

23h 15m2 stops

6:35 am - 6:15 pm

LHR

BZN

18h 40m2 stops

$607Lufthansa

Sat, Jan 24 - Sat, Jan 31

2:41 pm - 7:35 pm

BZN

LHR

21h 54m2 stops

8:15 pm - 9:22 pm

LHR

BZN

31h 07m2 stops

$616Lufthansa

Wed, Mar 4 - Sun, Mar 8

1:25 pm - 10:00 am

MSO

LHR

13h 35m1 stop

10:45 am - 5:23 pm

LHR

MSO

13h 38m1 stop

$620Virgin Atlantic

Tue, Feb 10 - Tue, Feb 17

11:47 am - 10:00 am

BIL

LHR

15h 13m1 stop

6:30 am - 7:24 pm

LHR

BIL

19h 54m2 stops

$623KLM

Fri, Jan 23 - Thu, Feb 5

7:55 am - 7:05 am

MSO

LHR

16h 10m1 stop

8:25 pm - 8:14 pm

LHR

MSO

30h 49m2 stops

$623KLM

Sat, Jan 24 - Fri, Feb 6

6:30 am - 9:40 am

BIL

LHR

20h 10m1 stop

6:35 am - 9:23 pm

LHR

BIL

21h 48m2 stops

$630United Airlines

Fri, Jan 23 - Fri, Jan 30

6:30 am - 7:10 am

BIL

LHR

17h 40m2 stops

6:35 am - 9:23 pm

LHR

BIL

21h 48m2 stops

$633United Airlines

Fri, Jan 23 - Fri, Jan 30

6:30 am - 8:30 am

BIL

LHR

19h 00m3 stops

1:25 pm - 9:50 am

LHR

BIL

27h 25m2 stops

$660Multiple Airlines

Fri, Jan 23 - Thu, Feb 5

6:30 am - 8:30 am

BIL

LHR

19h 00m3 stops

1:25 pm - 9:50 am

LHR

BIL

27h 25m2 stops

$678Multiple Airlines

Fri, Jan 23 - Fri, Jan 30

American Airlines flights from Montana to London Heathrow Airport

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

American Airlines

Apr 3

MSO1:20 pmMissoula Johnson-Bell Field

12h 45m

1 stop

LHR9:05 amLondon Heathrow

Apr 18

LHR8:55 amLondon Heathrow

19h 50m

1 stop

MSO9:45 pmMissoula Johnson-Bell Field

$775

Find similar

American Airlines

May 8

MSO1:05 pmMissoula Johnson-Bell Field

16h 10m

1 stop

LHR12:15 pmLondon Heathrow

May 23

LHR10:05 amLondon Heathrow

17h 48m

1 stop

MSO8:53 pmMissoula Johnson-Bell Field

$912

Find similar

American Airlines

Dec 30

BIL6:00 amBillings Logan Intl

19h 35m

1 stop

LHR8:35 amLondon Heathrow

Jan 1

LHR10:05 amLondon Heathrow

18h 09m

1 stop

BIL9:14 pmBillings Logan Intl

$2,944

Find similar

Delta flights from Montana to London Heathrow Airport

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

Delta

Mar 13

BZN3:19 pmBozeman Gallatin Field

13h 11m

1 stop

LHR10:30 amLondon Heathrow

Mar 20

LHR8:00 pmLondon Heathrow

21h 29m

2 stops

BZN11:29 amBozeman Gallatin Field

$663

Find similar

Delta

Mar 13

BZN3:19 pmBozeman Gallatin Field

13h 11m

1 stop

LHR10:30 amLondon Heathrow

Mar 20

LHR12:20 pmLondon Heathrow

16h 26m

1 stop

BZN10:46 pmBozeman Gallatin Field

$848

Find similar

Delta

May 9

MSO12:50 pmMissoula Johnson-Bell Field

16h 20m

2 stops

LHR12:10 pmLondon Heathrow

May 24

LHR12:25 pmLondon Heathrow

17h 49m

2 stops

MSO11:14 pmMissoula Johnson-Bell Field

$916

Find similar

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

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Sat 1/24

8:45 am-11:15 am

1 stop19h 30m

London Heathrow

Sat 1/31

6:35 am-6:15 pm

2 stops18h 40m

$598

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Sat 1/24

10:50 am-5:05 pm

2 stops23h 15m

London Heathrow

Sat 1/31

6:35 am-6:15 pm

2 stops18h 40m

$607

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Wed 3/4

2:41 pm-7:35 pm

2 stops21h 54m

London Heathrow

Sun 3/8

8:15 pm-9:22 pm

2 stops31h 07m

$616

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Tue 2/10

1:25 pm-10:00 am

1 stop13h 35m

London Heathrow

Tue 2/17

10:45 am-5:23 pm

1 stop13h 38m

$620

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Fri 1/23

11:47 am-10:00 am

1 stop15h 13m

London Heathrow

Thu 2/5

6:30 am-7:24 pm

2 stops19h 54m

$623

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Sat 1/24

7:55 am-7:05 am

1 stop16h 10m

London Heathrow

Fri 2/6

8:25 pm-8:14 pm

2 stops30h 49m

$623

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Fri 1/23

6:30 am-9:40 am

1 stop20h 10m

London Heathrow

Fri 1/30

6:35 am-9:23 pm

2 stops21h 48m

$630

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Fri 1/23

6:30 am-7:10 am

2 stops17h 40m

London Heathrow

Fri 1/30

6:35 am-9:23 pm

2 stops21h 48m

$633

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Fri 1/23

6:30 am-8:30 am

3 stops19h 00m

London Heathrow

Thu 2/5

1:25 pm-9:50 am

2 stops27h 25m

$660

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Fri 1/23

6:30 am-8:30 am

3 stops19h 00m

London Heathrow

Fri 1/30

1:25 pm-9:50 am

2 stops27h 25m

$678

Flights are sorted by cheapest round-trip 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

What is the cheapest month to fly to London Heathrow Airport?

The month of November is, on average, the cheapest month to fly to London Heathrow Airport from Montana, with most prices found around $679. If you’re not able to fly to London Heathrow Airport in November, then February is your next best option. Flight prices from Montana to London Heathrow Airport during February average around $732.

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	11h 48m
Direct flights	None

The fastest flight from Montana to London Heathrow Airport takes 11h 48m

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

Search flight deals

When did momondo last update prices for flights from Montana to London Heathrow Airport?
Prices for flights from Montana to London Heathrow Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Montana to London Heathrow Airport?
There are 3 operators available for flights from Montana to London Heathrow Airport as of December 2025.
How old do you have to be to fly from Montana to London Heathrow Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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 required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Montana to London Heathrow Airport

Compare and see reviews for airlines that fly from Montana to London Heathrow Airport with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $604	Free Cancellation	Rating 7.9 8,016 reviews	Search Delta flights
United Airlines	PriceFrom $645	Free Cancellation	Rating 7.4 9,114 reviews	Search United Airlines flights
Virgin Atlantic	PriceFrom $707	Free Cancellation	Rating 7.5 677 reviews	Search Virgin Atlantic flights

Gatwick

Hounslow

Milton Keynes

Dover

Luton

Slough

Guildford

Hayes

Dartford

Stratford-upon-Avon

Crawley

Brentwood

Salisbury

Watford

Wembley

Cobham

Folkestone

Romford

Richmond

Uxbridge

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Montana to London for you.

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

Yes. momondo enables you to select and highlight flights to London from Montana with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Montana.

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

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