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Cheap flights from Montana to London from £318

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 8/2. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — LON
17 Dec — 24 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 17 November 2025.

Wed 26/1105:25MSO - LHR
2 stops18h 40mDelta
Wed 3/1208:40LHR - MSO
2 stops20h 13mDelta
Deal found 17/11£473
Wed 10/1214:37FCA - LHR
1 stop12h 03mUnited Airlines
Fri 9/118:00LHR - FCA
2 stops34h 59mUnited Airlines
Deal found 16/11£477
Tue 2/1217:20MSO - LHR
2 stops30h 50mUnited Airlines
Fri 12/1211:10LHR - MSO
2 stops33h 23mUnited Airlines
Deal found 15/11£478
Tue 2/1205:00MSO - LHR
1 stop22h 00mMultiple Airlines
Fri 12/1211:05LHR - MSO
1 stop17h 48mMultiple Airlines
Deal found 15/11£491
Fri 5/1210:00BTM - LHR
1 stop16h 40mUnited Airlines
Tue 9/1206:35LHR - BTM
2 stops22h 54mUnited Airlines
Deal found 16/11£502
Fri 5/1214:35GTF - LHR
1 stop12h 05mUnited Airlines
Tue 9/1206:35LHR - GTF
2 stops38h 04mUnited Airlines
Deal found 15/11£506
Fri 5/1206:30HLN - LHR
1 stop20h 10mUnited Airlines
Tue 9/1206:35LHR - HLN
2 stops21h 47mUnited Airlines
Deal found 16/11£506
Fri 5/1213:12GTF - LHR
1 stop13h 48mDelta
Tue 9/1210:45LHR - GTF
1 stop18h 45mDelta
Deal found 16/11£529
Fri 5/1213:06HLN - LHR
1 stop13h 54mDelta
Tue 9/1210:45LHR - HLN
1 stop18h 45mDelta
Deal found 16/11£529
Fri 12/1205:00FCA - LHR
2 stops22h 15mDelta
Fri 9/120:00LHR - FCA
2 stops25h 31mDelta
Deal found 16/11£531
Sun 30/1107:00MSO - LHR
1 stop18h 35mMultiple Airlines
Mon 8/1208:20LHR - MSO
1 stop18h 42mMultiple Airlines
Deal found 17/11£531
Wed 31/1213:11GTF - LHR
1 stop13h 49mKLM
Wed 7/120:00LHR - GTF
2 stops28h 30mKLM
Deal found 16/11£563

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 17 November 2025.

Round-trip from

£475

One-way from

£318

Popular in

December

Cheapest in

October

Average price

£565
United Airlines
  • United Airlines
  • 11/1-21/1
  • 4 total stops
  • 59h 06m total
  • Montana to London
Search Deals
United Airlines
  • United Airlines
  • 8/2
  • 1 total stop
  • 15h 40m 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 17 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

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Wed 21/1

14:45-09:40

1 stop11h 55m

London Heathrow

Fri 30/1

06:35-21:23

2 stops21h 48m

£475

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Tue 20/1

10:52-09:40

1 stop15h 48m

London Heathrow

Fri 30/1

06:35-21:23

2 stops21h 48m

£475

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Sun 11/1

10:52-07:10

2 stops37h 18m

London Heathrow

Wed 21/1

06:35-21:23

2 stops21h 48m

£475

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Thu 8/1

14:39-11:40

1 stop14h 01m

London Heathrow

Tue 13/1

20:25-17:48

2 stops28h 23m

£476

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

£476

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

£476

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 10/12

14:37-09:40

1 stop12h 03m

London Heathrow

Fri 9/1

18:00-21:59

2 stops34h 59m

£477

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Tue 2/12

17:20-07:10

2 stops30h 50m

London Heathrow

Fri 12/12

11:10-13:33

2 stops33h 23m

£478

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Wed 25/2

05:30-08:05

2 stops19h 35m

London Heathrow

Wed 4/3

06:30-22:27

2 stops22h 57m

£479

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

£479

Flights are sorted by cheapest return flights first.

Deals found on 14/11

Showing 1-10 of 34 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 £458). Flying from Montana to London in June is currently the most expensive (average of £876). 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 11h 55m. Fly via United Airlines, KLM, or Delta to get the fastest option. The distance between Montana and London is about 4473 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 Billings Logan Intl - 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, January is the cheapest month in which you can book a flight from Montana to London (average of £458). Flying from Montana to London in June is currently the most expensive (average of £876). 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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Fly with Cheapflights

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

Cheapflights helps you search for flights from Montana to London via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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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