How long is the flight from Montana to London?

There are many flights that can get you from Montana to London in 12h 20m. Fly via Alaska Airlines, United Airlines, or Delta to get the fastest option. The distance between Montana and London is about 4537 mi. Both multi-stop and direct flights can be found to your destination and back.

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the most popular routes from Montana to London?

Most travelers choose Bozeman Gallatin Field - London City, Bozeman Gallatin Field - London Heathrow or Great Falls - London Heathrow when deciding on the best route from Montana to London.

What is the cheapest time of day to fly from MT to LON?

When flying from Montana to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Montana to London that include hotel bookings?

Yes. In addition to deals on Montana to London flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Montana to London?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montana to London.

Can I find deals for business class flights from Montana to London?

Yes. Cheapflights offers flight deals from Montana to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£246+ Cheap Flights from Montana to London

Cheap flight deals from Montana to London

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Montana to London
Explore the most affordable flight options available from Montana to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2026.

Wed 25/1113:13 -

2 stops17h 32m

Wed 2/1220:25 -

2 stops28h 16m

Deal found 26/8£652

Mon 28/912:57 -

1 stop14h 03m

Wed 14/1009:55 -

2 stops17h 20m

Deal found 27/8£653

Mon 30/1106:22 -

1 stop22h 58m

Fri 25/1214:45 -

1 stop16h 07m

Deal found 27/8£657

Wed 21/1009:45 -

1 stop19h 50m

Wed 11/1106:35 -

2 stops23h 08m

Deal found 25/8£666

Wed 7/1015:34 -

1 stop12h 46m

Wed 14/1009:55 -

2 stops21h 02m

Deal found 24/8£669

Wed 21/1008:33 -

1 stop21h 32m

Wed 11/1106:30 -

2 stops20h 27m

Deal found 25/8£669

Mon 9/1113:13 -

1 stop13h 47m

Tue 17/1120:25 -

2 stops28h 14m

Deal found 26/8£669

Sun 8/1114:45 -

1 stop11h 55m

Tue 17/1106:35 -

2 stops38h 14m

Deal found 26/8£670

Mon 12/1007:15 -

1 stop19h 45m

Tue 20/1020:55 -

2 stops32h 29m

Deal found 24/8£670

Mon 28/907:00 -

2 stops20h 00m

Wed 14/1009:30 -

2 stops18h 40m

Deal found 27/8£672

Wed 21/1008:33 -

2 stops15h 12m

Wed 11/1106:30 -

2 stops20h 27m

Deal found 25/8£673

Mon 9/1113:13 -

2 stops17h 32m

Wed 18/1120:25 -

2 stops28h 14m

Deal found 26/8£673

Best flights from Montana to London
Discover carefully curated flight deals from Montana to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 August 2026.

Sun 7/217:00 -

1 stop12h 20m

Wed 24/214:45 -

1 stop31h 46m

Deal found 28/8£660

Sat 13/218:10 -

2 stops30h 55m

Wed 24/206:20 -

2 stops17h 45m

Deal found 28/8£661

Wed 21/1009:45 -

1 stop19h 50m

Wed 11/1106:35 -

2 stops23h 08m

Deal found 25/8£666

Mon 28/907:00 -

2 stops20h 00m

Wed 14/1009:30 -

2 stops18h 40m

Deal found 27/8£672

Mon 28/906:23 -

1 stop23h 42m

Wed 14/1012:25 -

1 stop14h 50m

Deal found 27/8£688

Tue 9/207:30 -

2 stops27h 10m

Mon 22/209:50 -

2 stops39h 53m

Deal found 28/8£713

Tue 27/1012:28 -

1 stop15h 32m

Sun 1/1110:45 -

1 stop19h 12m

Deal found 27/8£750

Thu 22/1014:29 -

1 stop15h 46m

Mon 26/1020:25 -

2 stops27h 26m

Deal found 27/8£762

Sun 8/1107:03 -

2 stops24h 57m

Sat 14/1120:15 -

2 stops32h 03m

Deal found 24/8£906

Tue 27/1019:45 -

2 stops33h 10m

Sun 1/1111:55 -

2 stops32h 20m

Deal found 27/8£925

Sun 7/218:10 -

2 stops29h 40m

Mon 22/214:45 -

2 stops33h 20m

Deal found 28/8£671

Wed 25/1114:45 -

1 stop11h 55m

Wed 2/1217:30 -

2 stops35h 20m

Deal found 26/8£673

Tue 10/1116:59 -

1 stop12h 21m

Fri 13/1114:45 -

1 stop32h 34m

Deal found 24/8£691

Tue 9/212:50 -

2 stops15h 50m

Sat 20/206:20 -

2 stops23h 21m

Deal found 28/8£700

Tue 9/207:30 -

2 stops27h 10m

Tue 23/209:50 -

2 stops39h 53m

Deal found 28/8£713

Wed 10/212:50 -

2 stops15h 00m

Wed 24/211:35 -

1 stop16h 32m

Deal found 28/8£676

Sun 7/205:45 -

2 stops18h 20m

Fri 19/210:55 -

2 stops18h 46m

Deal found 28/8£680

Tue 1/1211:16 -

1 stop18h 04m

Sun 6/1214:45 -

1 stop16h 14m

Deal found 25/8£694

Thu 8/1007:00 -

2 stops18h 35m

Thu 15/1007:25 -

2 stops20h 45m

Deal found 24/8£713

Tue 9/207:30 -

2 stops27h 10m

Thu 18/209:50 -

2 stops39h 53m

Deal found 28/8£713

Wed 7/1014:37 -

1 stop12h 03m

Wed 14/1014:05 -

2 stops38h 17m

Deal found 24/8£676

Sun 7/205:45 -

2 stops21h 45m

Thu 18/210:50 -

2 stops18h 51m

Deal found 28/8£680

Mon 16/1107:00 -

1 stop22h 20m

Wed 18/1114:45 -

1 stop15h 07m

Deal found 28/8£697

Wed 4/1106:30 -

1 stop20h 10m

Thu 12/1109:30 -

2 stops19h 08m

Deal found 26/8£677

Sat 13/216:08 -

1 stop13h 12m

Fri 19/214:45 -

1 stop31h 46m

Deal found 28/8£697

Wed 7/1015:34 -

1 stop12h 46m

Mon 19/1008:40 -

2 stops22h 17m

Deal found 25/8£706

Fri 9/1013:21 -

1 stop14h 34m

Fri 16/1009:50 -

1 stop21h 00m

Deal found 26/8£814

Sat 7/1114:02 -

2 stops17h 58m

Sat 14/1120:15 -

2 stops32h 03m

Deal found 24/8£988

Thu 22/1014:37 -

2 stops20h 18m

Mon 26/1009:50 -

2 stops17h 40m

Deal found 25/8£817

Mon 2/1114:45 -

1 stop11h 55m

Mon 16/1116:40 -

2 stops52h 09m

Deal found 28/8£677

Find flight deals from Montana to London

Round-trip from	£652
One-way from	£246
Popular in	July
Cheapest in	April
Average price	£720

KLM
25/11-2/12
4 total stops
45h 48m total
Montana to London

Search Deals

United Airlines
25/11
2 total stops
19h 55m total
Montana to London

Search Deals

Highest demand for flights based on searches. 15% potential increase in price (£107 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£23 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Sun 7/2

17:00-12:20

1 stop12h 20m

London Heathrow

Wed 24/2

14:45-15:31

1 stop31h 46m

£660

ButteLondon

BTM Butte Silver Bow Co - LHR London Heathrow

BTMLHR

Butte Silver Bow Co

Sat 13/2

18:10-08:05

2 stops30h 55m

London Heathrow

Wed 24/2

06:20-17:05

2 stops17h 45m

£661

ButteLondon

BTM Butte Silver Bow Co - LHR London Heathrow

BTMLHR

Butte Silver Bow Co

Wed 21/10

09:45-12:35

1 stop19h 50m

London Heathrow

Wed 11/11

06:35-22:43

2 stops23h 08m

£666

ButteLondon

BTM Butte Silver Bow Co - LHR London Heathrow

BTMLHR

Butte Silver Bow Co

Sun 7/2

18:10-06:50

2 stops29h 40m

London Heathrow

Mon 22/2

14:45-17:05

2 stops33h 20m

£671

BillingsLondon

BIL Billings Logan Intl - LHR London Heathrow

BILLHR

Billings Logan Intl

Mon 28/9

07:00-10:00

2 stops20h 00m

London Heathrow

Wed 14/10

09:30-21:10

2 stops18h 40m

£672

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Wed 25/11

14:45-09:40

1 stop11h 55m

London Heathrow

Wed 2/12

17:30-21:50

2 stops35h 20m

£673

Fastest return journey

BozemanLondon

BZN Bozeman Gallatin Field - LHR London Heathrow

BZNLHR

Bozeman Gallatin Field

Wed 10/2

12:50-10:50

2 stops15h 00m

London Heathrow

Wed 24/2

11:35-21:07

1 stop16h 32m

£676

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Wed 7/10

14:37-09:40

1 stop12h 03m

London Heathrow

Wed 14/10

14:05-21:22

2 stops38h 17m

£676

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Wed 4/11

06:30-09:40

1 stop20h 10m

London Heathrow

Thu 12/11

09:30-21:38

2 stops19h 08m

£677

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Mon 2/11

14:45-09:40

1 stop11h 55m

London Heathrow

Mon 16/11

16:40-13:49

2 stops52h 09m

£677

Flights are sorted by cheapest return flights first.

Deals found on 26/8

Showing 1-10 of 54 resultsSorted by cheapest first

...

Best time to book a flight from Montana to London

Have a flexible travel schedule? Discover the best time to fly to London from Montana with our price prediction graph.

BIL-LHR

GTF-LHR

MSO-LHR

MSO-LGW

BZN-LHR

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Montana to London

USMT-LON

BIL-LHR

GTF-LHR

MSO-LHR

MSO-LGW

What is the cheapest month to book a flight from Montana to London?

Currently, March is the cheapest month in which you can book a flight from Montana to London (average of £608). Flying from Montana to London in June is currently the most expensive (average of £1,166). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

How long is the flight from Montana to London?
There are many flights that can get you from Montana to London in 12h 20m. Fly via Alaska Airlines, United Airlines, or Delta to get the fastest option. The distance between Montana and London is about 4537 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the most popular routes from Montana to London?
Most travelers choose Bozeman Gallatin Field - London City, Bozeman Gallatin Field - London Heathrow or Great Falls - London Heathrow when deciding on the best route from Montana to London.
Can I find deals for flights from Montana to London that include hotel bookings?
Yes. In addition to deals on Montana to London flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Montana to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montana to London.
Can I find deals for business class flights from Montana to London?
Yes. Cheapflights offers flight deals from Montana to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Montana to London?
Currently, March is the cheapest month in which you can book a flight from Montana to London (average of £608). Flying from Montana to London in June is currently the most expensive (average of £1,166). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Why should you use Cheapflights to find cheap flight tickets from Montana to London?

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Users can book flights with no change fees policies with our dedicated filters. Book flights from Montana to London flexibly with Cheapflights today.

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Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from Montana today and book when prices fit your budget.

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Cheap flights from Montana to London from £246

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Montana to London

Cheapest flights from Montana to LondonExplore the most affordable flight options available from Montana to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2026.

Explore the most affordable flight options available from Montana to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2026.

Best flights from Montana to LondonDiscover carefully curated flight deals from Montana to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 August 2026.

Discover carefully curated flight deals from Montana to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 August 2026.

Last-minute flights from Montana to LondonDiscover last-minute flight deals from Montana to London. Data last updated 29 August 2026 and is based on user searches.

Discover last-minute flight deals from Montana to London. Data last updated 29 August 2026 and is based on user searches.

One-way flights from Montana to LondonSearch for one-way flight options from Montana to London. Find affordable one-way fares based on user searches. Data last updated 29 August 2026.

Search for one-way flight options from Montana to London. Find affordable one-way fares based on user searches. Data last updated 29 August 2026.

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Best time to book a flight from Montana to London

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Cheapflights Insights

What is the cheapest month to book a flight from Montana to London?

Related info for your journey

How long is the flight from Montana to London?

What are the most popular routes from Montana to London?

Can I find deals for flights from Montana to London that include hotel bookings?

How can I find direct flights from Montana to London?

Can I find deals for business class flights from Montana to London?

What is the cheapest month to book a flight from Montana to London?

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Complete your trip

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Search flights from Montana to London by cabin class

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Other flights to London

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Montana and London flights

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Cheapest flights from Montana to London
Explore the most affordable flight options available from Montana to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2026.

Best flights from Montana to London
Discover carefully curated flight deals from Montana to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 August 2026.

Last-minute flights from Montana to London
Discover last-minute flight deals from Montana to London. Data last updated 29 August 2026 and is based on user searches.

One-way flights from Montana to London
Search for one-way flight options from Montana to London. Find affordable one-way fares based on user searches. Data last updated 29 August 2026.