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Cheap flights from Montana to London from £307

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 24/4. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — LON
26 Nov — 3 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Montana to London

Enter your travel dates to find the best prices.

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 27 October 2025.

Wed 5/1106:25BIL - LHR
1 stop17h 40mDelta
Wed 12/1106:20LHR - BIL
2 stops24h 04mDelta
Deal found 27/10£445
Wed 26/1113:13MSO - LHR
1 stop13h 47mMultiple Airlines
Wed 3/1206:20LHR - MSO
2 stops18h 16mMultiple Airlines
Deal found 26/10£445
Sun 9/1118:10GTF - LHR
1 stop32h 50mDelta
Tue 25/1106:20LHR - GTF
2 stops23h 10mDelta
Deal found 27/10£445
Wed 26/1113:13MSO - LHR
1 stop13h 47mKLM
Wed 3/1208:40LHR - MSO
2 stops20h 13mKLM
Deal found 25/10£445
Mon 10/1105:30GTF - LHR
1 stop21h 30mDelta
Wed 26/1111:45LHR - GTF
2 stops36h 45mDelta
Deal found 27/10£445
Tue 4/1105:30GTF - LHR
3 stops20h 30mDelta
Wed 19/1106:20LHR - GTF
2 stops18h 10mDelta
Deal found 25/10£448
Tue 11/1118:10GTF - LHR
2 stops29h 50mDelta
Wed 26/1111:45LHR - GTF
2 stops36h 45mDelta
Deal found 27/10£448
Tue 11/1105:30GTF - LHR
1 stop21h 30mDelta
Thu 27/1110:45LHR - GTF
1 stop13h 45mDelta
Deal found 27/10£450
Sat 22/1118:10GTF - LHR
2 stops29h 40mDelta
Wed 3/1206:20LHR - GTF
2 stops18h 08mDelta
Deal found 25/10£451
Sat 8/1118:09GTF - LHR
2 stops29h 11mDelta
Thu 27/1117:20LHR - GTF
2 stops36h 10mDelta
Deal found 27/10£454
Tue 11/1113:12GTF - LHR
2 stops16h 38mDelta
Mon 24/1114:45LHR - GTF
2 stops33h 45mDelta
Deal found 27/10£457
Sat 22/1118:10GTF - LHR
2 stops29h 40mDelta
Tue 2/1214:45LHR - GTF
2 stops33h 43mDelta
Deal found 25/10£461

Cheap flight deals from Montana to London

Keep the following information in mind while searching for Montana to London flight deals. Data was last updated 27 October 2025.

Round-trip from

£445

One-way from

£307

Popular in

December

Cheapest in

October

Average price

£517
Air France
  • Air France
  • 26/11-3/12
  • 3 total stops
  • 32h 03m total
  • Montana to London
Search Deals
24/4
  • 24/4
  • 2 total stops
  • 28h 38m total
  • Montana to London
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£48 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£27 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Montana to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 27 October 2025.
Use the filters below to find and compare flights from Montana to London that are best for you.

Fly from

Montana

Fly to

London

Route

Depart

Return

Price

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Wed 26/11

13:13-10:00

1 stop13h 47m

London Heathrow

Wed 3/12

06:20-17:36

2 stops18h 16m

£445

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sun 16/11

18:10-10:00

1 stop32h 50m

London Heathrow

Tue 25/11

06:20-22:30

2 stops23h 10m

£445

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Wed 26/11

13:13-10:00

1 stop13h 47m

London Heathrow

Wed 3/12

08:40-21:53

2 stops20h 13m

£445

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sun 9/11

18:10-10:00

1 stop32h 50m

London Heathrow

Wed 26/11

11:45-17:30

2 stops36h 45m

£445

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Tue 11/11

13:12-10:00

1 stop13h 48m

London Heathrow

Wed 26/11

20:25-17:30

2 stops28h 05m

£445

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sun 16/11

18:10-10:00

1 stop32h 50m

London Heathrow

Wed 26/11

11:45-17:30

2 stops36h 45m

£445

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Wed 12/11

13:12-10:00

1 stop13h 48m

London Heathrow

Wed 26/11

17:50-17:30

2 stops30h 40m

£445

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Tue 11/11

05:30-10:00

1 stop21h 30m

London Heathrow

Wed 26/11

11:45-17:30

2 stops36h 45m

£445

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Tue 18/11

05:30-06:50

2 stops18h 20m

London Heathrow

Thu 4/12

06:20-22:30

2 stops23h 10m

£448

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sat 15/11

18:10-06:20

2 stops29h 10m

London Heathrow

Tue 25/11

06:20-17:30

2 stops18h 10m

£448

Flights are sorted by cheapest return flights first.

Deals found on 26/10

Showing 1-10 of 38 results
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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.
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

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

Currently, August is the cheapest month in which you can book a flight from Montana to London (average of £478). Flying from Montana to London in June is currently the most expensive (average of £867). 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

Find useful and relevant information for your journey from Montana to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Montana to London?

    There are many flights that can get you from Montana to London in 13h 47m. Fly via Delta, KLM, or Virgin Atlantic to get the fastest option. The distance between Montana and London is about 4583 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Montana to London one-way?

    One-way options have recently been found by users for as low as £313 on Lufthansa. Other airlines that offer cheap prices include United Airlines from £329 and Delta from £389 one-way.

  • What are the most popular routes from Montana to London?

    Most travelers choose Bozeman Gallatin Field - London Heathrow, Bozeman Gallatin Field - London City or Missoula Johnson-Bell Field - 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, August is the cheapest month in which you can book a flight from Montana to London (average of £478). Flying from Montana to London in June is currently the most expensive (average of £867). 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.

See more FAQs

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
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Croydon
Slough
Gatwick
Hounslow
Luton
Wembley
Ilford
Deal
Hayes
Colchester
Watford
Crawley
Winchester
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Romford
Ipswich
Bedford
Brentford
Dartford

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Fly with Cheapflights

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How does Cheapflights help users find flights from Montana to London?

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

Cheapflights simply makes it quick and affordable to book flights from Montana to London by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Montana to London with no change fees?

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

Can Cheapflights notify me if prices for flights from Montana to London become cheaper?

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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