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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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — LON
19 Jun — 26 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 20 May 2026.

Mon 17/806:15
GTF
-
LHR
2 stops20h 45m
United Airlines
Wed 19/806:55
LHR
-
GTF
2 stops21h 17m
United Airlines
Deal found 19/5£563
Tue 10/1112:50
MSO
-
LHR
2 stops14h 55m
KLM
Thu 12/1110:45
LHR
-
MSO
1 stop13h 42m
KLM
Deal found 20/5£609
Tue 10/1108:00
MSO
-
LHR
2 stops15h 20m
Virgin Atlantic
Thu 12/1106:20
LHR
-
MSO
2 stops20h 52m
Virgin Atlantic
Deal found 20/5£612
Tue 17/1106:31
FCA
-
LHR
1 stop20h 09m
United Airlines
Thu 19/1109:30
LHR
-
FCA
2 stops43h 00m
United Airlines
Deal found 19/5£628
Sun 16/816:15
BZN
-
LHR
1 stop15h 10m
American Airlines
Wed 26/808:15
LHR
-
BZN
2 stops19h 22m
American Airlines
Deal found 18/5£649
Thu 22/1015:40
BZN
-
LHR
1 stop15h 20m
Virgin Atlantic
Mon 26/1012:20
LHR
-
BZN
1 stop16h 01m
Virgin Atlantic
Deal found 17/5£650
Wed 11/1105:45
BIL
-
LHR
1 stop21h 15m
KLM
Wed 18/1106:30
LHR
-
BIL
2 stops20h 18m
KLM
Deal found 19/5£653
Mon 2/1105:25
FCA
-
LHR
1 stop21h 35m
KLM
Tue 8/1220:25
LHR
-
FCA
2 stops28h 20m
KLM
Deal found 19/5£653
Mon 17/813:08
GTF
-
LHR
1 stop13h 52m
Delta
Thu 20/806:30
LHR
-
GTF
2 stops18h 12m
Delta
Deal found 19/5£653
Wed 19/815:14
FCA
-
LHR
1 stop14h 51m
Delta
Wed 26/806:30
LHR
-
FCA
2 stops24h 21m
Delta
Deal found 20/5£653
Tue 10/1108:00
MSO
-
LHR
1 stop16h 05m
KLM
Tue 17/1106:30
LHR
-
MSO
2 stops20h 42m
KLM
Deal found 20/5£653
Tue 3/1114:00
BZN
-
LHR
1 stop14h 40m
KLM
Tue 10/1120:25
LHR
-
BZN
2 stops28h 30m
KLM
Deal found 17/5£654

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 20 May 2026.

Round-trip from

£563

One-way from

£249

Popular in

July

Cheapest in

November

Average price

£729
United Airlines
  • United Airlines
  • 17/8-19/8
  • 4 total stops
  • 42h 02m total
  • Montana to London
Search Deals
United Airlines
  • United Airlines
  • 3/11
  • 1 total stop
  • 17h 00m total
  • Montana to London
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (£174 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£29 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 20 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

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Tue 10/11

12:50-10:45

2 stops14h 55m

London Heathrow

Thu 12/11

10:45-17:27

1 stop13h 42m

£609

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Tue 10/11

08:00-06:20

2 stops15h 20m

London Heathrow

Thu 12/11

06:20-20:12

2 stops20h 52m

£612

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 19/8

15:14-13:05

1 stop14h 51m

London Heathrow

Wed 26/8

06:30-23:51

2 stops24h 21m

£653

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Tue 3/11

14:00-11:40

1 stop14h 40m

London Heathrow

Mon 9/11

20:25-17:55

2 stops28h 30m

£654

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 2/9

05:25-10:00

1 stop21h 35m

London Heathrow

Thu 10/9

06:30-23:46

2 stops24h 16m

£654

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 30/9

05:25-10:00

1 stop21h 35m

London Heathrow

Wed 7/10

09:55-23:07

2 stops20h 12m

£655

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Tue 15/9

06:59-12:05

2 stops22h 06m

London Heathrow

Thu 24/9

08:40-23:46

2 stops22h 06m

£658

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Wed 11/11

11:55-12:20

1 stop17h 25m

London Heathrow

Wed 18/11

14:45-22:43

1 stop14h 58m

£661

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Tue 10/11

07:00-12:20

1 stop22h 20m

London Heathrow

Thu 12/11

14:45-21:25

1 stop13h 40m

£662

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Sun 1/11

13:29-13:50

2 stops17h 21m

London Heathrow

Wed 9/12

06:20-17:45

2 stops18h 25m

£665

Flights are sorted by cheapest return flights first.

Deals found on 17/5

Showing 1-10 of 50 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, December is the cheapest month in which you can book a flight from Montana to London (average of £445). Flying from Montana to London in June is currently the most expensive (average of £950). 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 14h 51m. Fly via KLM, Virgin Atlantic, or Delta to get the fastest option. The distance between Montana and London is about 4512 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 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, December is the cheapest month in which you can book a flight from Montana to London (average of £445). Flying from Montana to London in June is currently the most expensive (average of £950). 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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Croydon
Wembley
Luton
Gatwick
Slough
Ilford
Hayes
Brentford
Colchester
Romford
Watford
Kingston upon Thames
Eastbourne
Ipswich
Southend-on-Sea
Guildford
Southall
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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