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

How long does it take to fly to London?

If you’re flying from a popular airport in Montana, such as Bozeman or Missoula, and flying into London, then you can expect flight times to average 13h 35m and 14h 10m, 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 August 2025.

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.

$314 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 round-trip flights

5:40 am - 9:50 amGTF-LHR

21h 10m1 stop

6:15 am - 5:29 pmLHR-GTF

18h 14m2 stops

$577Delta

Find Deal

Mon, Sep 29 - Wed, Oct 8

1:05 pm - 9:50 amGTF-LHR

13h 45m1 stop

6:30 am - 5:29 pmLHR-GTF

17h 59m2 stops

$578KLM

Find Deal

Mon, Sep 29 - Wed, Oct 8

5:35 am - 10:00 amMSO-LHR

21h 25m1 stop

8:40 am - 8:12 pmLHR-MSO

18h 32m2 stops

$582

Find Deal

Wed, Nov 26 - Wed, Dec 3

5:35 am - 10:00 amMSO-LHR

21h 25m1 stop

8:40 am - 8:12 pmLHR-MSO

18h 32m2 stops

$583

Find Deal

Wed, Nov 26 - Wed, Dec 3

2:29 pm - 1:30 pmBZN-LHR

16h 01m1 stop

6:15 am - 5:39 pmLHR-BZN

18h 24m2 stops

$622Virgin Atlantic

Find Deal

Wed, Oct 15 - Wed, Oct 22

11:35 am - 11:20 amBZN-LHR

16h 45m2 stops

6:15 am - 5:39 pmLHR-BZN

18h 24m2 stops

$626Virgin Atlantic

Find Deal

Wed, Oct 15 - Wed, Oct 22

5:20 pm - 9:40 amHLN-LHR

33h 20m1 stop

2:05 pm - 9:11 pmLHR-HLN

38h 06m2 stops

$626United Airlines

Find Deal

Mon, Aug 25 - Tue, Sep 2

7:00 am - 12:20 pmGTF-LHR

22h 20m1 stop

12:05 pm - 1:26 pmLHR-GTF

32h 21m2 stops

$628United Airlines

Find Deal

Sun, Sep 14 - Thu, Oct 2

5:00 am - 11:50 amBIL-LHR

23h 50m2 stops

3:50 pm - 8:49 pmLHR-BIL

35h 59m2 stops

$689Air Canada

Find Deal

Thu, Oct 9 - Wed, Oct 15

7:00 am - 6:30 amBIL-LHR

16h 30m3 stops

8:30 am - 8:34 pmLHR-BIL

19h 04m3 stops

$1,205Air Canada

Find Deal

Fri, Aug 29 - Fri, Sep 5

Virgin Atlantic flights from Montana to London

Our best Virgin Atlantic deals on Montana to London flight tickets

Virgin Atlantic

Oct 15

BZN2:29 pmBozeman Gallatin Field

16h 01m

1 stop

LHR1:30 pmLondon Heathrow

Oct 22

LHR6:15 amLondon Heathrow

18h 24m

2 stops

BZN5:39 pmBozeman Gallatin Field

$622

Find similar

Virgin Atlantic

Oct 15

BZN11:35 amBozeman Gallatin Field

16h 45m

2 stops

LHR11:20 amLondon Heathrow

Oct 22

LHR6:15 amLondon Heathrow

18h 24m

2 stops

BZN5:39 pmBozeman Gallatin Field

$626

Find similar

Virgin Atlantic

Sep 10

BZN5:28 pmBozeman Gallatin Field

13h 47m

1 stop

LHR2:15 pmLondon Heathrow

Sep 17

LHR1:25 pmLondon Heathrow

15h 58m

1 stop

BZN10:23 pmBozeman Gallatin Field

$628

Find similar

Delta flights from Montana to London

Our best Delta deals on Montana to London flight tickets

Delta

Sep 29

GTF5:40 amGreat Falls

21h 10m

1 stop

LHR9:50 amLondon Heathrow

Oct 8

LHR6:15 amLondon Heathrow

18h 14m

2 stops

GTF5:29 pmGreat Falls

$577

Find similar

Delta

Sep 20

GTF1:05 pmGreat Falls

23h 55m

2 stops

LHR8:00 pmLondon Heathrow

Sep 30

LHR6:15 amLondon Heathrow

23h 13m

2 stops

GTF10:28 pmGreat Falls

$581

Find similar

Delta

Nov 11

GTF1:10 pmGreat Falls

13h 50m

1 stop

LHR10:00 amLondon Heathrow

Nov 27

LHR10:45 amLondon Heathrow

13h 57m

1 stop

GTF5:42 pmGreat Falls

$585

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 9/29

5:40 am-9:50 am

1 stop21h 10m

London Heathrow

Wed 10/8

6:15 am-5:29 pm

2 stops18h 14m

$577

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 9/29

1:05 pm-9:50 am

1 stop13h 45m

London Heathrow

Wed 10/8

6:30 am-5:29 pm

2 stops17h 59m

$578

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Wed 11/26

5:35 am-10:00 am

1 stop21h 25m

London Heathrow

Wed 12/3

8:40 am-8:12 pm

2 stops18h 32m

$582

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Wed 11/26

5:35 am-10:00 am

1 stop21h 25m

London Heathrow

Wed 12/3

8:40 am-8:12 pm

2 stops18h 32m

$583

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Wed 10/15

2:29 pm-1:30 pm

1 stop16h 01m

London Heathrow

Wed 10/22

6:15 am-5:39 pm

2 stops18h 24m

$622

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Wed 10/15

11:35 am-11:20 am

2 stops16h 45m

London Heathrow

Wed 10/22

6:15 am-5:39 pm

2 stops18h 24m

$626

HelenaLondon

HLN - LHR

HLNLHR

Helena

Mon 8/25

5:20 pm-9:40 am

1 stop33h 20m

London Heathrow

Tue 9/2

2:05 pm-9:11 pm

2 stops38h 06m

$626

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sun 9/14

7:00 am-12:20 pm

1 stop22h 20m

London Heathrow

Thu 10/2

12:05 pm-1:26 pm

2 stops32h 21m

$628

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Thu 10/9

5:00 am-11:50 am

2 stops23h 50m

London Heathrow

Wed 10/15

3:50 pm-8:49 pm

2 stops35h 59m

$689

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Fri 8/29

7:00 am-6:30 am

3 stops16h 30m

London Heathrow

Fri 9/5

8:30 am-8:34 pm

3 stops19h 04m

$1,205

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 February. Flight prices, which tend to average around $743, 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 $758.

What is the cheapest day to depart on your flight to London?

The cheapest day to depart from Montana to London is on a Monday. Travelers who choose to depart for London on a Monday will often find tickets for as low as $800. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $1,005. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

What is the cheapest time of day to depart on your flight to London?

Flying to London from Montana in the morning is the least expensive time of day to depart. momondo users have found prices as low as $852 when looking at flights departing in the morning. Flights to London are more costly in the afternoon, with an average ticket price of $867. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on Montana to London flights?

You could potentially save up to 41% 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	$314
Fastest flight time	12h 05m
Direct flights	None
Airports in London	2 airports

The best one-way flight to London from Montana in the past 72 hours is $314. The best round-trip flight deal from Montana to London found on momondo in the last 72 hours is $577.

The fastest flight from Montana to London takes 12h 05m

There are no direct flights from Montana to London. Popular non-direct routes for this connection are Bozeman Gallatin Field Airport - London Heathrow Airport, Billings Logan Intl 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 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 August 2025.
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 $613	Free Cancellation	Rating 8.0 7,983 reviews		Search Delta flights
United Airlines	PriceFrom $645	Free Cancellation	Rating 7.4 8,904 reviews		Search United Airlines flights

Gatwick

Hounslow

Dover

Slough

Luton

Dartford

Guildford

Milton Keynes

Stansted

Hayes

Crawley

Croydon

Chelmsford

Ilford

Brentwood

Colchester

Folkestone

Watford

Canterbury

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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Find better results for your trip to the United Kingdom

Cheap flights from Montana to London from $314

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 10/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

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Price Alerts

Find the cheapest flights from Montana to London

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Virgin Atlantic flights from Montana to London

Our best Virgin Atlantic deals on Montana to London flight tickets

Delta flights from Montana to London

Our best Delta deals on Montana to London flight tickets

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

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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

What is the cheapest month to fly to London?

What is the cheapest day to depart on your flight to London?

What is the cheapest time of day to depart on your flight to London?

Can stopping save me money on Montana to London flights?

You could potentially save up to 41% on your flight if you consider stops on a Montana to London flight.

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

How long does it take to fly to London?

If you’re flying from a popular airport in Montana, such as Bozeman or Missoula, and flying into London, then you can expect flight times to average 13h 35m and 14h 10m, respectively.

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

Fastest flight time

Direct flights

Airports in London

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

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

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

What documentation or ID do you need to fly 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?

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

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

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

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

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