Find flights
When to book
Airlines
FAQs

Cheap flights from Montana to London from £251

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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — LON
2 juil. — 9 juil.1
1 adult

Cheap flight deals from Montana to London

Keep the following information in mind while searching for Montana to London flight deals. Data was last updated 27 juin 2025.

Round-trip from

£458

One-way from

£251

Popular in

July

Cheapest in

February

Average price

£942
United Airlines
  • United Airlines
  • 25/8-2/9
  • 4 total stops
  • 71h 06m total
  • Montana to London
Search Deals
United Airlines
  • United Airlines
  • 10/8
  • 1 total stop
  • 12h 05m total
  • Montana to London
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (£158 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 2025
Search Deals

Find flight deals from Montana to London

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 27 juin 2025.

lun. 25/814:30HLN - LHR
2 stops33h 00mUnited Airlines
mar. 2/914:05LHR - HLN
2 stops38h 06mUnited Airlines
Deal found 25/6£458
mer. 26/1114:35MSO - LHR
1 stop12h 05mUnited Airlines
mer. 3/1213:00LHR - MSO
2 stops39h 30mUnited Airlines
Deal found 25/6£462
lun. 29/914:31GTF - LHR
1 stop14h 49mUnited Airlines
mer. 8/1012:05LHR - GTF
2 stops40h 06mUnited Airlines
Deal found 25/6£462
mer. 26/1108:00MSO - LHR
1 stop21h 15mKLM
mer. 3/1210:45LHR - MSO
1 stop13h 42mKLM
Deal found 25/6£474
lun. 29/911:30GTF - LHR
1 stop15h 20mKLM
mer. 8/1011:00LHR - GTF
1 stop18h 51mKLM
Deal found 25/6£474
lun. 25/805:50HLN - LHR
1 stop21h 00mDelta
mar. 2/910:55LHR - HLN
1 stop18h 18mDelta
Deal found 25/6£474
mer. 26/1105:35MSO - LHR
2 stops21h 55mDelta
mer. 3/1206:20LHR - MSO
2 stops20h 52mDelta
Deal found 25/6£482
jeu. 25/910:50BZN - LHR
1 stop15h 50mUnited Airlines
mar. 7/1015:50LHR - BZN
2 stops26h 49mUnited Airlines
Deal found 25/6£498
lun. 6/1012:41FCA - LHR
1 stop16h 04mUnited Airlines
mar. 21/1014:05LHR - FCA
2 stops28h 30mUnited Airlines
Deal found 26/6£503
lun. 25/817:28BZN - LHR
1 stop13h 47mDelta
dim. 31/806:15LHR - BZN
2 stops21h 12mDelta
Deal found 25/6£504
jeu. 25/914:00BZN - LHR
1 stop16h 30mKLM
ven. 3/1012:25LHR - BZN
1 stop18h 33mKLM
Deal found 25/6£511
jeu. 9/1011:38BIL - LHR
2 stops19h 37mKLM
mer. 15/1011:45LHR - BIL
2 stops17h 47mKLM
Deal found 24/6£514

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 27 juin 2025.
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

HelenaLondon

HLN - LHR

HLNLHR

Helena

lun. 25/8

14:30-06:30

2 stops33h 00m

London Heathrow

mar. 2/9

14:05-21:11

2 stops38h 06m

£458

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

mer. 26/11

14:35-09:40

1 stop12h 05m

London Heathrow

mer. 3/12

13:00-21:30

2 stops39h 30m

£462

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

lun. 29/9

14:31-06:30

2 stops32h 59m

London Heathrow

mer. 8/10

12:05-21:11

2 stops40h 06m

£462

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

mer. 26/11

08:00-12:15

1 stop21h 15m

London Heathrow

mer. 3/12

10:45-17:27

1 stop13h 42m

£474

HelenaLondon

HLN - LHR

HLNLHR

Helena

lun. 25/8

05:50-09:50

1 stop21h 00m

London Heathrow

mar. 2/9

10:55-22:13

1 stop18h 18m

£474

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

lun. 29/9

11:30-09:50

1 stop15h 20m

London Heathrow

mer. 8/10

11:00-22:51

1 stop18h 51m

£474

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

mer. 26/11

05:35-10:30

2 stops21h 55m

London Heathrow

mer. 3/12

06:20-20:12

2 stops20h 52m

£482

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

jeu. 25/9

11:05-06:45

1 stop12h 40m

London Heathrow

ven. 3/10

16:00-15:24

2 stops30h 24m

£498

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

lun. 6/10

12:41-11:45

1 stop16h 04m

London Heathrow

mar. 21/10

14:05-11:35

2 stops28h 30m

£503

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

lun. 25/8

17:28-14:15

1 stop13h 47m

London Heathrow

dim. 31/8

06:15-20:27

2 stops21h 12m

£504

Flights are sorted by cheapest return flights first.

Deals found on 26/6

Showing 1-10 of 39 results
1
2
3
4

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 £112). Flying from Montana to London in August is currently the most expensive (average of £164). 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?

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 27 juin 2025.
Read through reviews of airlines operating flights from Montana to London, such as Alaska Airlines, Delta, andKLM. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Entertainment

7.1

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Alaska Airlines
8.0
Very Good
10,000 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Entertainment

7.1

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Delta
8.0
Very Good
7,963 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Entertainment

7.1

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
KLM
7.8
Good
1,365 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Entertainment

7.1

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Air France
7.5
Good
1,469 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Entertainment

7.1

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
SWISS
7.5
Good
1,649 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Entertainment

7.1

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.

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.

  • What are the cheapest airlines to fly from Montana to London one-way?

    One-way options have recently been found by users for as low as £251 on United Airlines. Other airlines that offer cheap prices include Delta from £396 and KLM from £417 one-way.

  • What are the most popular routes from Montana to London?

    Most travelers choose Bozeman Gallatin Field - London Heathrow, Billings Logan Intl - London Heathrow or Billings Logan Intl - London City 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 £112). Flying from Montana to London in August is currently the most expensive (average of £164). 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 Montana?

Book flights to Montana if you plan to visit one of these locations
Croydon
Milton Keynes
Hounslow
Deal
Gatwick
Slough
Luton
Wembley
Crawley
Eastbourne
Ilford
Watford
Southend-on-Sea
Folkestone
Ipswich
Winchester
Hayes
Maidstone
Guildford
Chichester

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Montana to London

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
John F Kennedy Intl to Gatwick flights
Dulles Intl to Heathrow flights
John F Kennedy Intl to London City flights
Newark to Gatwick flights
LaGuardia to Heathrow flights
Los Angeles to Heathrow flights
Boston to Heathrow flights
O'Hare Intl to Heathrow flights
Baltimore to Heathrow flights
Dallas/Fort Worth to Heathrow flights
Seattle to Heathrow flights
John F Kennedy Intl to Stansted flights
Boston to Gatwick flights
LaGuardia to Gatwick flights
San Francisco to Heathrow flights
Newark to London City flights
Atlanta to Heathrow flights
Miami to Heathrow flights
Dulles Intl to Gatwick flights
Orlando to Heathrow flights
Reagan-National to Heathrow flights
Baltimore to Gatwick flights
Denver to Heathrow flights
Boston to London City flights
Newark to Stansted flights
Dulles Intl to London City flights
Philadelphia to Heathrow flights
Los Angeles to Gatwick flights
Los Angeles to London City flights
Hobby to Heathrow flights
Reagan-National to Gatwick flights
John F Kennedy Intl to Edinburgh flights
O'Hare Intl to Gatwick flights
O'Hare Intl to London City flights
Newark to Luton flights
Seattle to Gatwick flights
San Francisco to Gatwick flights
Dallas/Fort Worth to Gatwick flights
Newark to Edinburgh flights
Detroit to Heathrow flights
San Francisco to London City flights
George Bush Intcntl to Heathrow flights
Minneapolis to Heathrow flights
San Diego to Heathrow flights
Seattle to London City flights
Orlando to Gatwick flights
Raleigh to Heathrow flights

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights