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Cheap flights from Montana to London from £249

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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — LON
10 May — 17 May1
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 10 April 2026.

Wed 18/1113:05
BZN
-
LHR
1 stop13h 55m
KLM
Wed 25/1106:30
LHR
-
BZN
2 stops22h 51m
KLM
Deal found 5/4£651
Tue 1/914:25
BIL
-
LHR
1 stop12h 15m
United Airlines
Tue 15/906:55
LHR
-
BIL
2 stops17h 21m
United Airlines
Deal found 10/4£654
Wed 2/906:15
BIL
-
LHR
2 stops17h 30m
Multiple Airlines
Tue 15/908:40
LHR
-
BIL
2 stops17h 57m
Multiple Airlines
Deal found 6/4£654
Tue 1/906:15
BIL
-
LHR
2 stops21h 25m
Delta
Wed 16/906:30
LHR
-
BIL
2 stops22h 57m
Delta
Deal found 10/4£657
Mon 31/817:57
BIL
-
LHR
1 stop32h 43m
United Airlines
Tue 15/906:55
LHR
-
BIL
2 stops17h 21m
United Airlines
Deal found 10/4£657
Wed 18/1106:00
BZN
-
LHR
2 stops19h 45m
Virgin Atlantic
Wed 25/1106:20
LHR
-
BZN
2 stops18h 35m
Virgin Atlantic
Deal found 5/4£660
Tue 29/914:37
BZN
-
LHR
1 stop14h 48m
United Airlines
Tue 6/1007:30
LHR
-
BZN
2 stops20h 37m
United Airlines
Deal found 9/4£660
Tue 29/914:30
HLN
-
LHR
1 stop12h 10m
United Airlines
Tue 6/1017:40
LHR
-
HLN
2 stops29h 25m
United Airlines
Deal found 9/4£662
Wed 19/814:29
FCA
-
LHR
1 stop12h 11m
United Airlines
Wed 26/817:40
LHR
-
FCA
2 stops32h 08m
United Airlines
Deal found 10/4£663
Mon 2/1119:17
BIL
-
LHR
1 stop34h 03m
Alaska Airlines
Thu 28/114:45
LHR
-
BIL
1 stop16h 23m
Alaska Airlines
Deal found 6/4£663
Sun 27/907:00
BZN
-
LHR
1 stop25h 05m
Alaska Airlines
Thu 8/1017:00
LHR
-
BZN
1 stop28h 06m
Alaska Airlines
Deal found 8/4£667
Mon 2/1114:40
BIL
-
LHR
2 stops18h 10m
Lufthansa
Thu 28/106:35
LHR
-
BIL
2 stops21h 16m
Lufthansa
Deal found 6/4£668

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 10 April 2026.

Round-trip from

£654

One-way from

£249

Popular in

June

Cheapest in

November

Average price

£728
Delta
  • Delta
  • 2/9-15/9
  • 3 total stops
  • 42h 53m total
  • Montana to London
Search Deals
Virgin Atlantic
  • Virgin Atlantic
  • 8/9
  • 2 total stops
  • 16h 13m total
  • Montana to London
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£106 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£22 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 10 April 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

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Mon 14/9

13:05-10:00

1 stop13h 55m

London Heathrow

Tue 22/9

12:25-23:53

1 stop18h 28m

£672

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Tue 29/9

15:00-13:05

1 stop15h 05m

London Heathrow

Thu 22/10

10:55-17:45

1 stop13h 50m

£672

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Tue 29/9

10:41-09:40

1 stop15h 59m

London Heathrow

Tue 6/10

14:50-21:07

1 stop13h 17m

£673
Fastest return journey

HelenaLondon

HLN - LHR

HLNLHR

Helena

Tue 29/9

17:20-12:25

1 stop12h 05m

London Heathrow

Tue 6/10

11:25-20:59

1 stop16h 34m

£673

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Tue 1/9

14:25-09:40

1 stop12h 15m

London Heathrow

Wed 16/9

11:25-21:00

1 stop16h 35m

£675

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Tue 29/9

14:25-12:25

1 stop15h 00m

London Heathrow

Tue 6/10

11:25-21:15

1 stop16h 50m

£675

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Mon 14/9

13:05-15:00

2 stops18h 55m

London Heathrow

Tue 22/9

12:45-23:59

2 stops18h 14m

£676

HelenaLondon

HLN - LHR

HLNLHR

Helena

Tue 8/9

12:50-13:15

2 stops17h 25m

London Heathrow

Tue 22/9

10:55-22:34

1 stop18h 39m

£676

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Tue 29/9

12:35-10:55

1 stop15h 20m

London Heathrow

Thu 22/10

15:15-12:28

1 stop28h 13m

£677

HelenaLondon

HLN - LHR

HLNLHR

Helena

Fri 25/9

14:30-16:40

2 stops43h 10m

London Heathrow

Mon 28/9

14:05-16:05

2 stops33h 00m

£681

Flights are sorted by cheapest return flights first.

Deals found on 7/4

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

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 55m. Fly via KLM, United Airlines, or Virgin Atlantic 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, Bozeman Gallatin Field - London City 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.

See more FAQs

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Milton Keynes
Wembley
Croydon
Hounslow
Gatwick
Luton
Ilford
Slough
Hayes
Brentford
Colchester
Watford
Kingston upon Thames
Romford
Eastbourne
Chelmsford
Ipswich
Southend-on-Sea
Guildford
Bishop's Stortford

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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