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Cheap flights from Montana to London from £212

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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — LON
21 Jul — 28 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap 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 21 June 2026.

Sun 6/1214:25
GTF
-
LHR
2 stops33h 45m
United Airlines
Wed 9/1206:35
LHR
-
GTF
2 stops21h 45m
United Airlines
Deal found 20/6£569
Tue 20/1014:28
BIL
-
LHR
2 stops17h 12m
United Airlines
Thu 22/1014:05
LHR
-
BIL
2 stops34h 11m
United Airlines
Deal found 20/6£572
Sun 8/1114:30
HLN
-
LHR
2 stops42h 20m
United Airlines
Wed 11/1111:35
LHR
-
HLN
1 stop16h 24m
United Airlines
Deal found 16/6£587
Wed 30/914:20
BZN
-
LHR
1 stop15h 55m
KLM
Wed 7/1011:45
LHR
-
BZN
2 stops17h 36m
KLM
Deal found 16/6£661
Sun 18/1011:38
BZN
-
LHR
1 stop12h 37m
United Airlines
Tue 27/1006:50
LHR
-
BZN
2 stops34h 43m
United Airlines
Deal found 20/6£664
Mon 5/1016:24
BZN
-
LHR
2 stops31h 06m
United Airlines
Tue 13/1007:25
LHR
-
BZN
2 stops18h 47m
United Airlines
Deal found 17/6£664
Wed 30/913:08
BZN
-
LHR
2 stops16h 02m
Virgin Atlantic
Wed 7/1011:45
LHR
-
BZN
2 stops17h 36m
Virgin Atlantic
Deal found 16/6£665
Tue 6/1012:53
BZN
-
LHR
1 stop13h 07m
United Airlines
Wed 14/1007:30
LHR
-
BZN
2 stops20h 34m
United Airlines
Deal found 21/6£668
Tue 20/1019:32
BIL
-
LHR
1 stop12h 33m
Alaska Airlines
Thu 22/1017:00
LHR
-
BIL
1 stop13h 50m
Alaska Airlines
Deal found 20/6£668
Wed 30/914:21
BZN
-
LHR
1 stop17h 44m
Alaska Airlines
Wed 7/1017:00
LHR
-
BZN
1 stop13h 59m
Alaska Airlines
Deal found 16/6£670
Sun 18/1012:21
MSO
-
LHR
1 stop16h 34m
United Airlines
Tue 27/1007:30
LHR
-
MSO
2 stops20h 05m
United Airlines
Deal found 20/6£670
Sun 6/1216:55
GTF
-
LHR
1 stop12h 25m
Alaska Airlines
Wed 9/1214:45
LHR
-
GTF
1 stop32h 28m
Alaska Airlines
Deal found 20/6£670

Find flight deals from Montana to London

Keep the following information in mind while searching for Montana to London flight deals. Data was last updated 21 June 2026.

Round-trip from

£569

One-way from

£212

Popular in

July

Cheapest in

November

Average price

£1,067
United Airlines
  • United Airlines
  • 6/12-9/12
  • 4 total stops
  • 55h 30m total
  • Montana to London
Search Deals
6/10
  • 6/10
  • 3 total stops
  • 29h 40m total
  • Montana to London
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£176 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£28 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
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 21 June 2026.
Use the filters below to find and compare flights from Montana to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Tue 20/10

14:28-14:40

2 stops17h 12m

London Heathrow

Thu 22/10

14:05-17:16

2 stops34h 11m

£572

HelenaLondon

HLN - LHR

HLNLHR

Helena

Sun 8/11

14:30-15:50

2 stops42h 20m

London Heathrow

Wed 11/11

11:35-20:59

1 stop16h 24m

£587

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sun 6/12

14:25-16:50

2 stops43h 25m

London Heathrow

Wed 9/12

11:35-21:20

1 stop16h 45m

£588
Fastest return journey

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Tue 20/10

19:32-15:05

1 stop12h 33m

London Heathrow

Thu 22/10

17:00-23:50

1 stop13h 50m

£668

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sun 6/12

16:55-12:20

1 stop12h 25m

London Heathrow

Wed 9/12

14:45-16:13

1 stop32h 28m

£670

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Sun 18/10

12:21-11:55

1 stop16h 34m

London Heathrow

Tue 27/10

07:30-21:35

2 stops20h 05m

£670

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Mon 5/10

06:30-07:15

2 stops17h 45m

London Heathrow

Tue 13/10

09:30-21:04

2 stops18h 34m

£672

HelenaLondon

HLN - LHR

HLNLHR

Helena

Sun 8/11

16:41-12:20

1 stop12h 39m

London Heathrow

Wed 11/11

14:45-16:04

1 stop32h 19m

£674

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Mon 16/11

05:40-10:00

1 stop21h 20m

London Heathrow

Thu 19/11

08:40-20:12

2 stops18h 32m

£681

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Tue 22/9

05:30-11:00

1 stop22h 30m

London Heathrow

Tue 6/10

06:30-20:12

2 stops20h 42m

£681

Flights are sorted by cheapest return flights first.

Deals found on 20/6

Showing 1-10 of 60 resultsSorted by cheapest first
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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, March is the cheapest month in which you can book a flight from Montana to London (average of £418). Flying from Montana to London in June is currently the most expensive (average of £907). 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 12h 25m. Fly via United Airlines, Alaska Airlines, or Delta to get the fastest option. The distance between Montana and London is about 4472 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 Missoula Johnson-Bell Field - London Gatwick 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 £418). Flying from Montana to London in June is currently the most expensive (average of £907). 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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Ipswich
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Folkestone
Southall

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Alternative routes for Montana to London

See prices for flight routes from nearby airports that may be better suited for you.
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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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