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Cheap flights from Montana to London from £247

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 18/8. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — LON
5 Jun — 12 Jun1
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 6 May 2026.

Mon 19/1013:55
COD
-
LHR
2 stops20h 10m
United Airlines
Wed 21/1014:05
LHR
-
COD
2 stops39h 42m
United Airlines
Deal found 2/5£587
Tue 11/813:32
BZN
-
LHR
1 stop14h 33m
American Airlines
Tue 22/908:15
LHR
-
BZN
2 stops19h 24m
American Airlines
Deal found 5/5£643
Tue 18/810:41
BZN
-
LHR
2 stops19h 09m
Lufthansa
Tue 1/906:55
LHR
-
BZN
2 stops21h 12m
Lufthansa
Deal found 5/5£645
Tue 18/812:30
BZN
-
LHR
1 stop16h 25m
United Airlines
Tue 1/906:50
LHR
-
BZN
2 stops18h 33m
United Airlines
Deal found 5/5£648
Wed 4/1111:35
BIL
-
LHR
1 stop15h 25m
KLM
Tue 23/206:30
LHR
-
BIL
2 stops20h 18m
KLM
Deal found 2/5£648
Sun 25/1008:00
MSO
-
LHR
1 stop17h 05m
Delta
Thu 12/1108:40
LHR
-
MSO
2 stops18h 32m
Delta
Deal found 3/5£648
Wed 19/815:14
FCA
-
LHR
1 stop14h 51m
Delta
Wed 26/811:45
LHR
-
FCA
2 stops18h 08m
Delta
Deal found 4/5£649
Mon 10/813:14
MSO
-
LHR
1 stop13h 46m
Virgin Atlantic
Wed 19/811:45
LHR
-
MSO
2 stops19h 02m
Virgin Atlantic
Deal found 4/5£649
Wed 28/1014:27
MSO
-
LHR
1 stop13h 13m
United Airlines
Tue 10/1106:35
LHR
-
MSO
2 stops21h 51m
United Airlines
Deal found 3/5£650
Sun 1/1107:00
BZN
-
LHR
2 stops17h 10m
United Airlines
Tue 10/1106:35
LHR
-
BZN
2 stops21h 32m
United Airlines
Deal found 1/5£651
Wed 4/1105:00
BIL
-
LHR
2 stops19h 10m
United Airlines
Tue 23/206:35
LHR
-
BIL
2 stops21h 16m
United Airlines
Deal found 5/5£651
Tue 11/810:41
BZN
-
LHR
2 stops16h 44m
United Airlines
Tue 22/906:50
LHR
-
BZN
2 stops18h 33m
United Airlines
Deal found 5/5£652

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 6 May 2026.

Round-trip from

£587

One-way from

£247

Popular in

July

Cheapest in

November

Average price

£715
United Airlines
  • United Airlines
  • 19/10-21/10
  • 4 total stops
  • 59h 52m total
  • Montana to London
Search Deals
KLM
  • KLM
  • 18/8
  • 1 total stop
  • 16h 41m total
  • Montana to London
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£160 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 May 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 6 May 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

CodyLondon

COD - LHR

CODLHR

Cody E.E. Faust

Mon 19/10

13:55-17:05

2 stops20h 10m

London Heathrow

Wed 21/10

14:05-22:47

2 stops39h 42m

£587

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 19/8

15:14-13:05

1 stop14h 51m

London Heathrow

Wed 26/8

11:45-22:53

2 stops18h 08m

£649

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Sun 1/11

07:00-07:10

2 stops17h 10m

London Heathrow

Tue 10/11

06:35-21:07

2 stops21h 32m

£651

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Sun 13/9

05:45-07:15

2 stops18h 30m

London Heathrow

Fri 25/9

06:30-23:47

2 stops24h 17m

£652

MissoulaLondon

MSO - LGW

MSOLGW

Missoula Johnson-Bell Field

Mon 10/8

13:14-16:00

2 stops19h 46m

London Gatwick

Wed 19/8

10:25-23:52

2 stops20h 27m

£657

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Sun 1/11

06:00-07:05

1 stop18h 05m

London Heathrow

Tue 10/11

10:45-17:55

1 stop14h 10m

£670

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 19/8

15:14-13:05

1 stop14h 51m

London Heathrow

Wed 26/8

10:55-22:53

1 stop18h 58m

£670

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 19/8

17:00-12:35

1 stop12h 35m

London Heathrow

Wed 26/8

08:00-18:48

1 stop17h 48m

£670

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Mon 14/9

12:50-10:00

1 stop14h 10m

London Heathrow

Thu 1/10

10:55-17:23

1 stop13h 28m

£670

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Sun 6/9

10:30-09:40

1 stop16h 10m

London Heathrow

Thu 10/9

08:00-21:26

2 stops20h 26m

£674

Flights are sorted by cheapest return flights first.

Deals found on 4/5

Showing 1-10 of 55 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, October is the cheapest month in which you can book a flight from Montana to London (average of £349). Flying from Montana to London in June is currently the most expensive (average of £780). 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 55m. Fly via United Airlines, Delta, 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, Missoula Johnson-Bell Field - London Gatwick 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, October is the cheapest month in which you can book a flight from Montana to London (average of £349). Flying from Montana to London in June is currently the most expensive (average of £780). 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?

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Wembley
Croydon
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Luton
Gatwick
Ilford
Slough
Hayes
Brentford
Colchester
Romford
Watford
Kingston upon Thames
Eastbourne
Ipswich
Southend-on-Sea
Guildford
Bishop's Stortford
Chelmsford

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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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