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

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

How long does it take to fly to London?

If you’re flying from a popular airport in Montana, such as Billings or Missoula, and flying into London, then you can expect flight times to average 11h 35m and 12h 02m, respectively.

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

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

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

There are 2 operators available for flights from Montana to London as of April 2026.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 required for your trip to London 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. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$334 Cheap Flights from Montana to London in 2026

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Find the cheapest flights from Montana to London

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:30 am - 12:10 pm

BZN

LHR

20h 40m

1 stop

8:40 am - 11:53 pm

LHR

BZN

22h 13m

2 stops

$877Delta

Wed, Sep 2 - Tue, Sep 15

2:25 pm - 9:40 am

BIL

LHR

12h 15m

1 stop

6:55 am - 5:16 pm

LHR

BIL

17h 21m

2 stops

$877United Airlines

Tue, Sep 1 - Tue, Sep 15

5:32 pm - 12:35 pm

MSO

LHR

12h 03m

1 stop

6:55 am - 9:26 pm

LHR

MSO

21h 31m

2 stops

$879United Airlines

Wed, Sep 2 - Tue, Sep 15

7:00 am - 8:35 am

BIL

LHR

42h 35m

2 stops

5:40 pm - 9:41 am

LHR

BIL

47h 01m

2 stops

$898Air Canada

Mon, Aug 31 - Wed, Sep 16

5:57 pm - 9:35 am

BIL

LHR

56h 38m

2 stops

5:40 pm - 9:41 am

LHR

BIL

47h 01m

2 stops

$904Air Canada

Sun, Aug 30 - Wed, Sep 16

5:18 pm - 6:55 am

HLN

LHR

30h 37m

2 stops

4:25 pm - 3:31 pm

LHR

HLN

30h 06m

2 stops

$908Multiple Airlines

Tue, Sep 29 - Tue, Oct 6

2:25 pm - 4:40 pm

BIL

LHR

19h 15m

2 stops

8:25 pm - 9:00 pm

LHR

BIL

31h 35m

2 stops

$912Lufthansa

Wed, Sep 2 - Mon, Sep 14

6:15 am - 6:30 am

MSO

LHR

17h 15m

2 stops

5:40 pm - 1:27 pm

LHR

MSO

26h 47m

2 stops

$945Multiple Airlines

Wed, Sep 2 - Sun, Sep 13

2:37 pm - 5:55 pm

BZN

LCY

20h 18m

2 stops

9:15 am - 9:07 pm

LCY

BZN

18h 52m

2 stops

$1,006Lufthansa

Thu, Aug 20 - Mon, Aug 24

6:35 am - 2:40 pm

FCA

LGW

25h 05m

2 stops

1:00 pm - 11:51 pm

LGW

FCA

17h 51m

2 stops

$1,142Icelandair

Tue, May 5 - Tue, May 12

Delta flights from Montana to London

Our best Delta deals on Montana to London flight tickets

Delta

Sep 2

BZN8:30 amBozeman Gallatin Field

20h 40m

1 stop

LHR12:10 pmLondon Heathrow

Sep 15

LHR8:40 amLondon Heathrow

22h 13m

2 stops

BZN11:53 pmBozeman Gallatin Field

$877

Delta

Sep 1

BZN6:00 amBozeman Gallatin Field

21h 40m

2 stops

LHR10:40 amLondon Heathrow

Sep 15

LHR8:40 amLondon Heathrow

22h 13m

2 stops

BZN11:53 pmBozeman Gallatin Field

$881

Delta

Sep 1

BZN8:30 amBozeman Gallatin Field

24h 05m

1 stop

LHR3:35 pmLondon Heathrow

Sep 15

LHR6:30 amLondon Heathrow

22h 54m

2 stops

BZN10:24 pmBozeman Gallatin Field

$882

United Airlines flights from Montana to London

Our best United Airlines deals on Montana to London flight tickets

United Airlines

Sep 1

BIL2:25 pmBillings Logan Intl

12h 15m

1 stop

LHR9:40 amLondon Heathrow

Sep 15

LHR6:55 amLondon Heathrow

17h 21m

2 stops

BIL5:16 pmBillings Logan Intl

$877

United Airlines

Sep 2

MSO5:32 pmMissoula Johnson-Bell Field

12h 03m

1 stop

LHR12:35 pmLondon Heathrow

Sep 15

LHR6:55 amLondon Heathrow

21h 31m

2 stops

MSO9:26 pmMissoula Johnson-Bell Field

$879

United Airlines

Sep 1

BIL7:00 amBillings Logan Intl

20h 00m

2 stops

LHR10:00 amLondon Heathrow

Sep 15

LHR6:55 amLondon Heathrow

17h 21m

2 stops

BIL5:16 pmBillings Logan Intl

$880

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Wed 9/2

8:30 am-12:10 pm

1 stop20h 40m

London Heathrow

Tue 9/15

8:40 am-11:53 pm

2 stops22h 13m

$877

Quickest round-trip

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Tue 9/1

2:25 pm-9:40 am

1 stop12h 15m

London Heathrow

Tue 9/15

6:55 am-5:16 pm

2 stops17h 21m

$877

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Wed 9/2

5:32 pm-12:35 pm

1 stop12h 03m

London Heathrow

Tue 9/15

6:55 am-9:26 pm

2 stops21h 31m

$879

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Mon 8/31

7:00 am-8:35 am

2 stops42h 35m

London Heathrow

Wed 9/16

5:40 pm-9:41 am

2 stops47h 01m

$898

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Sun 8/30

5:57 pm-9:35 am

2 stops56h 38m

London Heathrow

Wed 9/16

5:40 pm-9:41 am

2 stops47h 01m

$904

HelenaLondon

HLN - LHR

HLNLHR

Helena

Tue 9/29

5:18 pm-6:55 am

2 stops30h 37m

London Heathrow

Tue 10/6

4:25 pm-3:31 pm

2 stops30h 06m

$908

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Wed 9/2

2:25 pm-4:40 pm

2 stops19h 15m

London Heathrow

Mon 9/14

8:25 pm-9:00 pm

2 stops31h 35m

$912

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Wed 9/2

6:15 am-6:30 am

2 stops17h 15m

London Heathrow

Sun 9/13

5:40 pm-1:27 pm

2 stops26h 47m

$945

BozemanLondon

BZN - LCY

BZNLCY

Bozeman Gallatin Field

Thu 8/20

2:37 pm-5:55 pm

2 stops20h 18m

London City

Mon 8/24

9:15 am-9:07 pm

2 stops18h 52m

$1,006

KalispellLondon

FCA - LGW

FCALGW

Kalispell Glacier Park

Tue 5/5

6:35 am-2:40 pm

2 stops25h 05m

London Gatwick

Tue 5/12

1:00 pm-11:51 pm

2 stops17h 51m

$1,142

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

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 November. Flight prices, which tend to average around $629, are often lower during this time because this is during the off-season. The month of October is another great option to travel to London, with average flight prices from Montana averaging around $689.

Can stopping save me money on Montana to London flights?

You could potentially save up to 2% 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

Fastest flight time	11h 25m
Direct flights	None

The fastest flight from Montana to London takes 11h 25m

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

Search flight deals

Frequently asked questions about flying from Montana to London

When did momondo last update prices for flights from Montana to London?
Prices for flights from Montana to London are refreshed on a daily basis.
How many operators does momondo search for flights from Montana to London?
There are 2 operators available for flights from Montana to London as of April 2026.
How old do you have to be to fly from Montana to London?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 required for your trip to London 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. 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

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $604	Free Cancellation	Rating 7.9 8,406 reviews		Search Delta flights
United Airlines	PriceFrom $645	Free Cancellation	Rating 7.4 9,581 reviews		Search United Airlines flights

Gatwick

Hounslow

Milton Keynes

Luton

Dover

Hayes

Slough

Crawley

Wembley

Stansted

Croydon

Dartford

Brentwood

Cobham

Folkestone

Guildford

Romford

Harrow

Watford

Richmond

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Montana to London. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to London 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 London?

momondo provides multiple filters to help you find the best flight to London from Montana. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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.

An easier way to manage your London trip

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Cheap flights from Montana to London from $334

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montana to London departing on 7/19. 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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Delta flights from Montana to London

Our best Delta deals on Montana to London flight tickets

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Our best United Airlines deals on Montana to London flight tickets

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How to get the cheapest flight ticket from Montana to London

What is the cheapest month to fly to London?

Can stopping save me money on Montana to London flights?

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

How long does it take to fly to London?

Cheap Montana to London flight deals and tips

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

Fastest flight time

Direct flights

Frequently asked questions about flying from Montana to London

Best airlines flying from Montana to London

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

Traveling to a place near London?

Why use momondo?

An easier way to manage your London trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London

Fly your favorite airline to London

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to London

List of cabin classes available on flights landing in London. Availability may vary depending on flight origin and airline.

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Popular flights according to clicks in the last 7 days on momondo

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