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Cheap flights from Montana to London from £278

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 31/1. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — LON
20 Dec — 27 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 20 November 2025.

Wed 26/1105:25MSO - LHR
2 stops18h 40mDelta
Wed 3/1208:40LHR - MSO
2 stops20h 13mDelta
Deal found 17/11£476
Mon 29/1218:22BZN - LHR
1 stop32h 18mUnited Airlines
Sun 11/113:25LHR - BZN
2 stops27h 20mUnited Airlines
Deal found 17/11£492
Fri 5/1210:00BTM - LHR
1 stop16h 40mUnited Airlines
Tue 9/1206:35LHR - BTM
2 stops22h 54mUnited Airlines
Deal found 17/11£505
Fri 5/1206:15GTF - LHR
1 stop20h 25mUnited Airlines
Tue 9/1206:35LHR - GTF
2 stops21h 57mUnited Airlines
Deal found 17/11£509
Fri 5/1206:30HLN - LHR
2 stops17h 40mUnited Airlines
Tue 9/1206:35LHR - HLN
2 stops21h 47mUnited Airlines
Deal found 17/11£509
Fri 5/1206:25BIL - LHR
1 stop17h 40mVirgin Atlantic
Tue 9/1208:40LHR - BIL
2 stops22h 08mVirgin Atlantic
Deal found 17/11£510
Fri 5/1213:12GTF - LHR
1 stop13h 48mDelta
Tue 9/1210:45LHR - GTF
1 stop13h 43mDelta
Deal found 17/11£532
Fri 5/1213:06HLN - LHR
1 stop13h 54mDelta
Tue 9/1210:45LHR - HLN
1 stop18h 45mDelta
Deal found 17/11£532
Sun 30/1107:00MSO - LHR
1 stop18h 35mMultiple Airlines
Mon 8/1208:20LHR - MSO
1 stop18h 42mMultiple Airlines
Deal found 17/11£534
Fri 28/1114:43BZN - LHR
1 stop11h 57mUnited Airlines
Sat 6/1206:35LHR - BZN
2 stops22h 04mUnited Airlines
Deal found 17/11£547
Mon 29/1214:40BZN - LHR
2 stops56h 15mLufthansa
Sun 11/107:40LHR - BZN
2 stops20h 53mLufthansa
Deal found 17/11£576
Sun 30/1106:20MSO - LHR
1 stop20h 20mUnited Airlines
Mon 8/1213:00LHR - MSO
2 stops39h 18mUnited Airlines
Deal found 17/11£595

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 20 November 2025.

Round-trip from

£478

One-way from

£278

Popular in

December

Cheapest in

October

Average price

£568
Virgin Atlantic
  • Virgin Atlantic
  • 8/1-22/1
  • 3 total stops
  • 33h 16m total
  • Montana to London
Search Deals
31/1
  • 31/1
  • 3 total stops
  • 35h 02m total
  • Montana to London
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£43 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£33 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 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 20 November 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

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Thu 29/1

07:23-10:30

1 stop20h 07m

London Heathrow

Fri 6/2

08:40-20:06

2 stops18h 26m

£478

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Tue 13/1

12:40-10:00

1 stop14h 20m

London Heathrow

Tue 27/1

20:25-17:25

2 stops28h 00m

£478

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Thu 8/1

12:05-08:25

1 stop13h 20m

London Heathrow

Mon 12/1

13:25-11:44

2 stops29h 19m

£481

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Thu 29/1

06:00-06:25

2 stops17h 25m

London Heathrow

Fri 6/2

06:30-20:06

2 stops20h 36m

£481

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Thu 8/1

11:40-08:45

2 stops14h 05m

London Heathrow

Tue 13/1

20:25-17:48

2 stops28h 23m

£481

ButteLondon

BTM - LHR

BTMLHR

Butte Silver Bow Co

Wed 14/1

18:10-08:45

2 stops31h 35m

London Heathrow

Fri 23/1

06:20-17:11

2 stops17h 51m

£482

ButteLondon

BTM - LHR

BTMLHR

Butte Silver Bow Co

Thu 8/1

09:14-09:40

1 stop17h 26m

London Heathrow

Mon 12/1

13:00-22:45

2 stops40h 45m

£482

HelenaLondon

HLN - LHR

HLNLHR

Helena

Sat 31/1

06:15-09:40

1 stop20h 25m

London Heathrow

Sun 8/2

06:30-21:26

2 stops21h 56m

£484

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Thu 8/1

17:15-09:40

1 stop33h 25m

London Heathrow

Mon 12/1

11:10-13:35

2 stops33h 25m

£486

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Fri 16/1

14:37-09:40

1 stop12h 03m

London Heathrow

Tue 20/1

13:00-16:05

2 stops34h 05m

£486

Flights are sorted by cheapest return flights first.

Deals found on 19/11

Showing 1-10 of 35 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, January is the cheapest month in which you can book a flight from Montana to London (average of £461). Flying from Montana to London in June is currently the most expensive (average of £881). 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.

How much does it cost for a return flight from Montana to London?

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 20m. Fly via KLM, United Airlines, or Delta to get the fastest option. The distance between Montana and London is about 4556 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 Heathrow, Missoula Johnson-Bell Field - London Heathrow or Bozeman Gallatin Field - London City 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, January is the cheapest month in which you can book a flight from Montana to London (average of £461). Flying from Montana to London in June is currently the most expensive (average of £881). 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

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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?

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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.

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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