What airlines fly to London?

United Airlines, Alaska Airlines and Delta are the top three most popular airlines that fly to London from Montana according to our data. United Airlines is the first choice among our users, with 68% of people opting to fly with this airline when traveling to London. Keep in mind that there are 3 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to London?

If you’re flying from a popular airport in Montana, such as Great Falls or Missoula, and flying into London, then you can expect flight times to average 11h 55m and 11h 57m, respectively.

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

Lufthansa, United Airlines, and American Airlines are the most popular carriers operating 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 3 operators available for flights from Montana to London as of November 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.

$332 Cheap Flights from Montana to London in 2026/27

Discover deals from 900+ travel sites with momondo.

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.

5:53 pm - 7:40 amBIL Billings Logan Intl-LHR London Heathrow

30h 47m2 stops Denver Intl Houston George Bush Intcntl

6:35 am - 8:51 pmLHR London Heathrow-BIL Billings Logan Intl

21h 16m2 stops Munich Franz Josef Strauss Denver Intl

$763United Airlines

Tue, Mar 2 - Fri, Mar 5

5:55 pm - 11:15 amBZN Bozeman Gallatin Field-LHR London Heathrow

34h 20m1 stop San Francisco

6:50 am - 11:07 pmLHR London Heathrow-BZN Bozeman Gallatin Field

23h 17m2 stops Brussels Bruxelles-National Chicago O'Hare Intl

$768United Airlines

Mon, Mar 1 - Thu, Mar 4

5:53 pm - 7:40 amBIL Billings Logan Intl-LHR London Heathrow

30h 47m2 stops Denver Intl Houston George Bush Intcntl

7:30 am - 8:51 pmLHR London Heathrow-BIL Billings Logan Intl

20h 21m2 stops Frankfurt am Main Denver Intl

$772United Airlines

Tue, Mar 2 - Fri, Mar 5

1:00 pm - 6:55 amBZN Bozeman Gallatin Field-LHR London Heathrow

34h 55m1 stop Boston Logan Intl

9:20 am - 11:45 amLHR London Heathrow-BZN Bozeman Gallatin Field

33h 25m1 stop Boston Logan Intl

$857JetBlue

Tue, Mar 2 - Mon, Mar 8

1:00 pm - 6:55 amBZN Bozeman Gallatin Field-LHR London Heathrow

34h 55m1 stop Boston Logan Intl

9:20 am - 11:45 amLHR London Heathrow-BZN Bozeman Gallatin Field

33h 25m1 stop Boston Logan Intl

$862JetBlue

Wed, Feb 24 - Mon, Mar 1

2:34 pm - 9:40 pmBZN Bozeman Gallatin Field-LHR London Heathrow

24h 06m1 stop New York John F Kennedy Intl

9:20 am - 11:45 amLHR London Heathrow-BZN Bozeman Gallatin Field

33h 25m1 stop Boston Logan Intl

$862JetBlue

Fri, Feb 26 - Mon, Mar 1

6:33 am - 12:20 pmFCA Kalispell Glacier Park-LHR London Heathrow

22h 47m1 stop Seattle/Tacoma Intl

2:45 pm - 11:59 pmLHR London Heathrow-FCA Kalispell Glacier Park

16h 14m1 stop Seattle/Tacoma Intl

$891Alaska Airlines

Tue, Mar 2 - Fri, Mar 5

4:13 pm - 12:20 pmMSO Missoula Johnson-Bell Field-LHR London Heathrow

13h 07m1 stop Seattle/Tacoma Intl

2:45 pm - 11:59 pmLHR London Heathrow-MSO Missoula Johnson-Bell Field

16h 14m1 stop Seattle/Tacoma Intl

$891Alaska Airlines

Tue, Mar 2 - Fri, Mar 5

6:00 am - 7:05 amBZN Bozeman Gallatin Field-LHR London Heathrow

18h 05m1 stop Minneapolis St Paul

8:40 am - 8:03 pmLHR London Heathrow-BZN Bozeman Gallatin Field

18h 23m2 stops Amsterdam Schiphol Minneapolis St Paul

$906Delta

Sun, Feb 28 - Thu, Mar 11

1:15 pm - 10:30 amBZN Bozeman Gallatin Field-LHR London Heathrow

14h 15m1 stop New York John F Kennedy Intl

8:40 am - 8:03 pmLHR London Heathrow-BZN Bozeman Gallatin Field

18h 23m2 stops Amsterdam Schiphol Minneapolis St Paul

$906Delta

Mon, Mar 1 - Thu, Mar 11

Cheap last minute flights

Enter your travel dates to find the best prices.

2:45 pm - 9:40 amGTF Great Falls-LHR London Heathrow

11h 55m1 stop Denver Intl

11:35 am - 9:38 pmLHR London Heathrow-GTF Great Falls

17h 03m1 stop Denver Intl

$1,027United Airlines

Wed, Nov 4 - Wed, Nov 18

2:45 pm - 9:40 amGTF Great Falls-LHR London Heathrow

11h 55m1 stop Denver Intl

11:35 am - 9:38 pmLHR London Heathrow-GTF Great Falls

17h 03m1 stop Denver Intl

$1,077United Airlines

Fri, Nov 6 - Tue, Nov 17

1:18 pm - 10:00 amGTF Great Falls-LHR London Heathrow

13h 42m1 stop Salt Lake City

10:45 am - 5:39 pmLHR London Heathrow-GTF Great Falls

13h 54m1 stop Salt Lake City

$1,107Delta

Wed, Nov 4 - Sun, Nov 15

8:33 am - 7:05 amMSO Missoula Johnson-Bell Field-LHR London Heathrow

15h 32m1 stop Minneapolis St Paul

6:20 am - 7:57 pmLHR London Heathrow-MSO Missoula Johnson-Bell Field

20h 37m2 stops Paris Charles de Gaulle Minneapolis St Paul

$1,124Air France

Fri, Nov 6 - Sat, Nov 14

7:03 am - 12:20 pmMSO Missoula Johnson-Bell Field-LHR London Heathrow

22h 17m1 stop Seattle/Tacoma Intl

2:45 pm - 9:18 pmLHR London Heathrow-MSO Missoula Johnson-Bell Field

13h 33m1 stop Seattle/Tacoma Intl

$1,127Alaska Airlines

Fri, Nov 6 - Sat, Nov 14

2:45 pm - 9:40 amGTF Great Falls-LHR London Heathrow

11h 55m1 stop Denver Intl

11:35 am - 9:38 pmLHR London Heathrow-GTF Great Falls

17h 03m1 stop Denver Intl

$1,127United Airlines

Thu, Nov 5 - Mon, Nov 16

5:30 am - 7:05 amMSO Missoula Johnson-Bell Field-LHR London Heathrow

18h 35m2 stops Salt Lake City Minneapolis St Paul

6:20 am - 7:57 pmLHR London Heathrow-MSO Missoula Johnson-Bell Field

20h 37m2 stops Paris Charles de Gaulle Minneapolis St Paul

$1,129Delta

Fri, Nov 6 - Sat, Nov 14

6:15 am - 7:40 amMSO Missoula Johnson-Bell Field-LHR London Heathrow

18h 25m3 stops Denver Intl Austin Bergstrom Houston George Bush Intcntl

12:05 pm - 1:31 pmLHR London Heathrow-MSO Missoula Johnson-Bell Field

32h 26m2 stops Houston George Bush Intcntl Denver Intl

$1,144United Airlines

Fri, Nov 6 - Sat, Nov 14

1:18 pm - 10:00 amGTF Great Falls-LHR London Heathrow

13h 42m1 stop Salt Lake City

10:45 am - 5:39 pmLHR London Heathrow-GTF Great Falls

13h 54m1 stop Salt Lake City

$1,157Delta

Fri, Nov 6 - Sun, Nov 15

1:14 pm - 6:30 pmMSO Missoula Johnson-Bell Field-LHR London Heathrow

22h 16m3 stops Salt Lake City Los Angeles Kastrup Copenhagen

10:20 am - 12:39 pmLHR London Heathrow-MSO Missoula Johnson-Bell Field

33h 19m3 stops Kastrup Copenhagen Los Angeles Salt Lake City

$4,451Multiple Airlines

Fri, Nov 6 - Sat, Nov 14

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

United Airlines flights from Montana to London

Our best United Airlines deals on Montana to London flight tickets

United Airlines

Mar 2

BIL5:53 pmBillings Logan Intl

30h 47m

2 stops

LHR7:40 amLondon Heathrow

Mar 5

LHR6:35 amLondon Heathrow

21h 16m

2 stops

BIL8:51 pmBillings Logan Intl

$763

United Airlines

Mar 1

BZN5:55 pmBozeman Gallatin Field

34h 20m

1 stop

LHR11:15 amLondon Heathrow

Mar 4

LHR6:50 amLondon Heathrow

23h 17m

2 stops

BZN11:07 pmBozeman Gallatin Field

$768

United Airlines

Mar 2

BIL5:53 pmBillings Logan Intl

30h 47m

2 stops

LHR7:40 amLondon Heathrow

Mar 5

LHR7:30 amLondon Heathrow

20h 21m

2 stops

BIL8:51 pmBillings Logan Intl

$772

Lufthansa flights from Montana to London

Our best Lufthansa deals on Montana to London flight tickets

Lufthansa

Mar 24

HLN7:00 amHelena

20h 40m

1 stop

LHR9:40 amLondon Heathrow

Mar 31

LHR7:30 amLondon Heathrow

20h 29m

2 stops

HLN8:59 pmHelena

$946

Lufthansa

Nov 29

FCA6:14 amKalispell Glacier Park

20h 26m

1 stop

LHR9:40 amLondon Heathrow

Dec 8

LHR4:20 pmLondon Heathrow

28h 16m

2 stops

FCA1:36 pmKalispell Glacier Park

$959

Lufthansa

Mar 24

HLN2:30 pmHelena

16h 20m

2 stops

LHR12:50 pmLondon Heathrow

Mar 31

LHR7:30 amLondon Heathrow

20h 29m

2 stops

HLN8:59 pmHelena

$964

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BillingsLondon

BIL Billings Logan Intl - LHR London Heathrow

BILLHR

Billings Logan Intl

Tue 3/2

5:53 pm-7:40 am

2 stops30h 47m

London Heathrow

Fri 3/5

6:35 am-8:51 pm

2 stops21h 16m

$763

BozemanLondon

BZN Bozeman Gallatin Field - LHR London Heathrow

BZNLHR

Bozeman Gallatin Field

Mon 3/1

5:55 pm-11:15 am

1 stop34h 20m

London Heathrow

Thu 3/4

6:50 am-11:07 pm

2 stops23h 17m

$768

BillingsLondon

BIL Billings Logan Intl - LHR London Heathrow

BILLHR

Billings Logan Intl

Tue 3/2

5:53 pm-7:40 am

2 stops30h 47m

London Heathrow

Fri 3/5

7:30 am-8:51 pm

2 stops20h 21m

$772

BozemanLondon

BZN Bozeman Gallatin Field - LHR London Heathrow

BZNLHR

Bozeman Gallatin Field

Tue 3/2

1:00 pm-6:55 am

1 stop34h 55m

London Heathrow

Mon 3/8

9:20 am-11:45 am

1 stop33h 25m

$857

BozemanLondon

BZN Bozeman Gallatin Field - LHR London Heathrow

BZNLHR

Bozeman Gallatin Field

Wed 2/24

1:00 pm-6:55 am

1 stop34h 55m

London Heathrow

Mon 3/1

9:20 am-11:45 am

1 stop33h 25m

$862

BozemanLondon

BZN Bozeman Gallatin Field - LHR London Heathrow

BZNLHR

Bozeman Gallatin Field

Fri 2/26

2:34 pm-9:40 pm

1 stop24h 06m

London Heathrow

Mon 3/1

9:20 am-11:45 am

1 stop33h 25m

$862

KalispellLondon

FCA Kalispell Glacier Park - LHR London Heathrow

FCALHR

Kalispell Glacier Park

Tue 3/2

6:33 am-12:20 pm

1 stop22h 47m

London Heathrow

Fri 3/5

2:45 pm-11:59 pm

1 stop16h 14m

$891

Quickest round-trip

MissoulaLondon

MSO Missoula Johnson-Bell Field - LHR London Heathrow

MSOLHR

Missoula Johnson-Bell Field

Tue 3/2

4:13 pm-12:20 pm

1 stop13h 07m

London Heathrow

Fri 3/5

2:45 pm-11:59 pm

1 stop16h 14m

$891

BozemanLondon

BZN Bozeman Gallatin Field - LHR London Heathrow

BZNLHR

Bozeman Gallatin Field

Sun 2/28

6:00 am-7:05 am

1 stop18h 05m

London Heathrow

Thu 3/11

8:40 am-8:03 pm

2 stops18h 23m

$906

BozemanLondon

BZN Bozeman Gallatin Field - LHR London Heathrow

BZNLHR

Bozeman Gallatin Field

Mon 3/1

1:15 pm-10:30 am

1 stop14h 15m

London Heathrow

Thu 3/11

8:40 am-8:03 pm

2 stops18h 23m

$906

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 January. Flight prices, which tend to average around $853, 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 $915.

Can stopping save me money on Montana to London flights?

You could potentially save up to 35% 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	$332
Fastest flight time	11h 55m
Direct flights	None

The best one-way flight to London from Montana in the past 72 hours is $332. The best round-trip flight deal from Montana to London found on momondo in the last 72 hours is $763.

The fastest flight from Montana to London takes 11h 55m

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 3 operators available for flights from Montana to London as of November 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 7.3 10,459 reviews	Search United Airlines flights
Delta	PriceFrom $604	Free Cancellation	Rating 7.8 8,696 reviews	Search Delta flights
Alaska Airlines	PriceFrom $897	Free Cancellation	Rating 7.9 13,138 reviews	Search Alaska Airlines flights

Hounslow

Gatwick

Croydon

Hayes

Milton Keynes

Luton

Stansted

Kingston upon Thames

Watford

Richmond

Dover

Wembley

Crawley

Worthing

Harrow

Brentford

Canterbury

Hook

Dunstable

Eastbourne

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

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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Thu 12/3

Thu 12/10

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United Kingdom

Nearby airports

Airlines

Cabin classes

Other United Kingdom destinations

Other flights from Montana

Complete your trip

Feeling lucky

Fly into one of these airports located in London

London City Airport

London Gatwick Airport

London Heathrow Airport

London Luton Airport

London Southend Airport

London Stansted Airport

Cheap flights from Montana to London from $332

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 2/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Montana to London

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

United Airlines flights from Montana to London

Our best United Airlines deals on Montana to London flight tickets

Lufthansa flights from Montana to London

Our best Lufthansa deals on Montana to London flight tickets

momondo Fare Finder

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

See travel insights to London from

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?

What airlines fly to London?

How long does it take to fly to London?

Cheap Montana to London flight deals and tips

Best Price Found

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.

Popular cities in the United Kingdom

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

Fly to other destinations from Montana

According to popular flight searches on momondo this year

Complete your trip to London

Explore popular destinations other users love

According to popular flight searches on momondo this year