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Cheap flights from Montana to London from £211

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 18/5. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — LON
4 Mar — 11 Mar1
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 2 February 2026.

Sat 28/206:25
GTF
-
LHR
1 stop20h 15m
United Airlines
Wed 11/306:35
LHR
-
GTF
2 stops20h 36m
United Airlines
Deal found 31/1£464
Sun 1/318:20
GTF
-
LHR
1 stop32h 40m
Delta
Thu 12/311:45
LHR
-
GTF
2 stops35h 57m
Delta
Deal found 31/1£464
Tue 14/414:40
BZN
-
LHR
2 stops19h 00m
Lufthansa
Tue 28/407:25
LHR
-
BZN
2 stops21h 07m
Lufthansa
Deal found 1/2£467
Sun 1/318:20
GTF
-
LHR
1 stop32h 40m
Delta
Tue 10/306:20
LHR
-
GTF
2 stops22h 10m
Delta
Deal found 31/1£468
Mon 2/314:25
GTF
-
LHR
2 stops25h 30m
United Airlines
Thu 12/306:35
LHR
-
GTF
2 stops20h 36m
United Airlines
Deal found 31/1£470
Tue 3/305:20
GTF
-
LHR
3 stops20h 40m
Delta
Fri 13/306:20
LHR
-
GTF
2 stops17h 22m
Delta
Deal found 31/1£472
Mon 2/313:15
GTF
-
LHR
2 stops17h 35m
Delta
Mon 16/311:45
LHR
-
GTF
2 stops35h 57m
Delta
Deal found 31/1£472
Thu 5/314:30
GTF
-
LHR
1 stop12h 10m
United Airlines
Mon 16/313:00
LHR
-
GTF
2 stops38h 11m
United Airlines
Deal found 31/1£474
Tue 14/411:59
BZN
-
LHR
1 stop16h 01m
Delta
Tue 28/406:30
LHR
-
BZN
2 stops20h 41m
Delta
Deal found 1/2£475
Mon 4/505:05
BIL
-
LHR
1 stop24h 15m
United Airlines
Fri 15/510:50
LHR
-
BIL
2 stops29h 48m
United Airlines
Deal found 31/1£475
Sun 1/318:20
GTF
-
LHR
2 stops29h 30m
Delta
Fri 13/306:20
LHR
-
GTF
2 stops17h 22m
Delta
Deal found 31/1£475
Wed 15/406:15
GTF
-
LHR
2 stops20h 45m
United Airlines
Wed 29/407:25
LHR
-
GTF
2 stops37h 09m
United Airlines
Deal found 31/1£478

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 2 February 2026.

Round-trip from

£464

One-way from

£211

Popular in

June

Cheapest in

October

Average price

£543
United Airlines
  • United Airlines
  • 28/2-13/3
  • 3 total stops
  • 40h 51m total
  • Montana to London
Search Deals
United Airlines
  • United Airlines
  • 18/5
  • 1 total stop
  • 14h 43m total
  • Montana to London
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£97 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 February 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 2 February 2026.
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

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Wed 4/3

06:25-09:40

1 stop20h 15m

London Heathrow

Tue 10/3

06:35-21:11

2 stops20h 36m

£464

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Tue 14/4

14:40-16:40

2 stops19h 00m

London Heathrow

Tue 28/4

07:25-21:32

2 stops21h 07m

£467

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sun 1/3

18:20-10:00

1 stop32h 40m

London Heathrow

Tue 10/3

06:20-22:30

2 stops22h 10m

£468

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Wed 4/3

06:25-22:55

2 stops33h 30m

London Heathrow

Fri 13/3

06:35-21:11

2 stops20h 36m

£470

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Wed 22/4

05:30-10:00

1 stop21h 30m

London Heathrow

Thu 30/4

06:30-22:40

2 stops23h 10m

£475

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Tue 14/4

13:45-13:05

1 stop16h 20m

London Heathrow

Tue 28/4

08:40-20:11

2 stops18h 31m

£475

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Mon 4/5

05:05-12:20

1 stop24h 15m

London Heathrow

Fri 15/5

10:50-09:38

2 stops29h 48m

£475

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Wed 29/4

06:15-06:30

2 stops17h 15m

London Heathrow

Wed 13/5

07:25-13:34

2 stops37h 09m

£478

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Wed 15/4

13:09-10:00

1 stop13h 51m

London Heathrow

Thu 30/4

06:15-17:40

2 stops18h 25m

£481

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Tue 14/4

13:09-13:05

2 stops16h 56m

London Heathrow

Thu 30/4

06:15-17:40

2 stops18h 25m

£484

Flights are sorted by cheapest return flights first.

Deals found on 30/1

Showing 1-10 of 60 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 £441). Flying from Montana to London in June is currently the most expensive (average of £819). 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.

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 19h. Fly via United Airlines, Lufthansa, or Delta 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 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 £441). Flying from Montana to London in June is currently the most expensive (average of £819). 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?

Book flights to London if you plan to visit one of these locations
Milton Keynes
Croydon
Luton
Wembley
Gatwick
Slough
Ilford
Hounslow
Brentford
Hayes
Colchester
Watford
Guildford
Bedford
Chelmsford
Eastbourne
Crawley
Kingston upon Thames
Romford
Ipswich

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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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