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

United Airlines, Delta, and KLM 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 12h and 12h 01m, 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 June 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.

2:00 pm - 7:15 am

BZN

LHR

34h 15m

1 stop

11:45 am - 11:58 pm

LHR

BZN

42h 13m

2 stops

$810Virgin Atlantic

Thu, Oct 22 - Mon, Oct 26

3:40 pm - 5:35 pm

BZN

LHR

18h 55m

2 stops

11:45 am - 11:58 pm

LHR

BZN

42h 13m

2 stops

$818Virgin Atlantic

Thu, Oct 22 - Mon, Oct 26

10:00 am - 8:30 am

BTM

LHR

39h 30m

2 stops

6:35 am - 10:27 pm

LHR

BTM

22h 52m

2 stops

$838United Airlines

Tue, Nov 10 - Fri, Nov 13

5:57 pm - 9:40 am

BIL

LHR

32h 43m

1 stop

7:30 am - 9:00 pm

LHR

BIL

20h 30m

2 stops

$847United Airlines

Tue, Sep 8 - Fri, Sep 11

12:05 pm - 7:00 am

BIL

LHR

12h 55m

1 stop

8:25 am - 9:15 pm

LHR

BIL

19h 50m

2 stops

$868Multiple Airlines

Tue, Oct 27 - Tue, Nov 3

3:54 pm - 3:35 pm

BZN

LHR

16h 41m

1 stop

6:30 am - 5:55 pm

LHR

BZN

18h 25m

2 stops

$876KLM

Sun, Sep 6 - Fri, Oct 9

5:25 am - 10:00 am

FCA

LHR

21h 35m

1 stop

8:25 pm - 5:45 pm

LHR

FCA

28h 20m

2 stops

$876KLM

Mon, Nov 2 - Wed, Dec 2

5:45 am - 10:00 am

BIL

LHR

21h 15m

1 stop

8:40 am - 11:11 pm

LHR

BIL

21h 31m

2 stops

$876Delta

Wed, Sep 9 - Thu, Sep 17

6:26 am - 10:40 am

BIL

LHR

21h 14m

2 stops

6:30 am - 11:11 pm

LHR

BIL

23h 41m

2 stops

$881Delta

Sun, Sep 6 - Tue, Sep 15

8:00 am - 6:50 am

MSO

LHR

15h 50m

2 stops

6:30 am - 8:12 pm

LHR

MSO

20h 42m

2 stops

$881Multiple Airlines

Mon, Nov 16 - Thu, Nov 19

Virgin Atlantic flights from Montana to London

Our best Virgin Atlantic deals on Montana to London flight tickets

Virgin Atlantic

Oct 22

BZN2:00 pmBozeman Gallatin Field

34h 15m

1 stop

LHR7:15 amLondon Heathrow

Oct 26

LHR11:45 amLondon Heathrow

42h 13m

2 stops

BZN11:58 pmBozeman Gallatin Field

$810

Virgin Atlantic

Oct 22

BZN3:40 pmBozeman Gallatin Field

18h 55m

2 stops

LHR5:35 pmLondon Heathrow

Oct 26

LHR11:45 amLondon Heathrow

42h 13m

2 stops

BZN11:58 pmBozeman Gallatin Field

$818

Virgin Atlantic

Jun 7

FCA3:29 pmKalispell Glacier Park

14h 36m

1 stop

LHR1:05 pmLondon Heathrow

Jun 14

LHR11:30 amLondon Heathrow

19h 08m

2 stops

FCA11:38 pmKalispell Glacier Park

$1,353

Lufthansa flights from Montana to London

Our best Lufthansa deals on Montana to London flight tickets

Lufthansa

Sep 6

HLN2:35 pmHelena

15h 00m

1 stop

LHR12:35 pmLondon Heathrow

Oct 9

LHR6:55 amLondon Heathrow

21h 08m

2 stops

HLN9:03 pmHelena

$876

Lufthansa

Nov 4

BZN2:37 pmBozeman Gallatin Field

17h 08m

2 stops

LHR2:45 pmLondon Heathrow

Nov 11

LHR6:35 amLondon Heathrow

21h 32m

2 stops

BZN9:07 pmBozeman Gallatin Field

$881

Lufthansa

Sep 8

HLN2:35 pmHelena

14h 50m

1 stop

LHR12:25 pmLondon Heathrow

Sep 29

LHR9:30 amLondon Heathrow

18h 33m

2 stops

HLN9:03 pmHelena

$890

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Thu 10/22

2:00 pm-7:15 am

1 stop34h 15m

London Heathrow

Mon 10/26

11:45 am-11:58 pm

2 stops42h 13m

$810

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Thu 10/22

3:40 pm-5:35 pm

2 stops18h 55m

London Heathrow

Mon 10/26

11:45 am-11:58 pm

2 stops42h 13m

$818

ButteLondon

BTM - LHR

BTMLHR

Butte Silver Bow Co

Tue 11/10

10:00 am-8:30 am

2 stops39h 30m

London Heathrow

Fri 11/13

6:35 am-10:27 pm

2 stops22h 52m

$838

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Tue 9/8

5:57 pm-9:40 am

1 stop32h 43m

London Heathrow

Fri 9/11

7:30 am-9:00 pm

2 stops20h 30m

$847

Quickest round-trip

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Tue 10/27

12:05 pm-7:00 am

1 stop12h 55m

London Heathrow

Tue 11/3

8:25 am-9:15 pm

2 stops19h 50m

$868

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Sun 9/6

3:54 pm-3:35 pm

1 stop16h 41m

London Heathrow

Fri 10/9

6:30 am-5:55 pm

2 stops18h 25m

$876

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Mon 11/2

5:25 am-10:00 am

1 stop21h 35m

London Heathrow

Wed 12/2

8:25 pm-5:45 pm

2 stops28h 20m

$876

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Wed 9/9

5:45 am-10:00 am

1 stop21h 15m

London Heathrow

Thu 9/17

8:40 am-11:11 pm

2 stops21h 31m

$876

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Sun 9/6

6:26 am-10:40 am

2 stops21h 14m

London Heathrow

Tue 9/15

6:30 am-11:11 pm

2 stops23h 41m

$881

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Mon 11/16

8:00 am-6:50 am

2 stops15h 50m

London Heathrow

Thu 11/19

6:30 am-8:12 pm

2 stops20h 42m

$881

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 December. Flight prices, which tend to average around $597, are often lower during this time because this is during the off-season. The month of August is another great option to travel to London, with average flight prices from Montana averaging around $599.

Can stopping save me money on Montana to London flights?

You could potentially save up to 11% 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 30m
Direct flights	None

The fastest flight from Montana to London takes 11h 30m

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 June 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
United Airlines	PriceFrom $556	Free Cancellation	Rating 7.4 9,778 reviews		Search United Airlines flights
Delta	PriceFrom $604	Free Cancellation	Rating 7.9 8,397 reviews		Search Delta flights

Hounslow

Gatwick

Milton Keynes

Luton

Dover

Hayes

Crawley

Croydon

Wembley

Slough

Stansted

Harrow

Dartford

Brentwood

Watford

Ilford

Cobham

Folkestone

Uxbridge

Guildford

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 11/2. 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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Virgin Atlantic flights from Montana to London

Our best Virgin Atlantic 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

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

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