Find flights
When to book
Airlines
FAQs

Cheap flights from Montana to London Heathrow Airport from £323

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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — LHR
18 יוני — 25 יוני1
1 adult

Cheap flight deals from Montana to Heathrow

Keep the following information in mind while searching for Montana to Heathrow flight deals. Data was last updated 13 יוני 2025.

Round-trip from

£533

One-way from

£323

Popular in

July

Cheapest in

February

Average price

£952
United Airlines
  • United Airlines
  • 15/10-21/10
  • 3 total stops
  • 58h 49m total
  • Montana to London
Search Deals
United Airlines
  • United Airlines
  • 5/10
  • 1 total stop
  • 22h 20m total
  • Montana to London
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (£161 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 Heathrow

Cheapest flights from Montana to Heathrow
Explore the most affordable flight options available from Montana to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 יוני 2025.

ד' 15/1009:47BTM - LHR
1 stop19h 33mUnited Airlines
ג' 21/1014:05LHR - BTM
2 stops39h 16mUnited Airlines
Deal found 11/6£533
ד' 15/1016:30BZN - LHR
1 stop12h 50mUnited Airlines
ג' 21/1014:05LHR - BZN
2 stops28h 34mUnited Airlines
Deal found 11/6£536
ב' 29/907:00GTF - LHR
1 stop22h 20mUnited Airlines
ד' 8/1014:05LHR - GTF
2 stops38h 06mUnited Airlines
Deal found 11/6£536
ב' 25/814:30HLN - LHR
1 stop14h 50mUnited Airlines
ג' 2/914:05LHR - HLN
2 stops38h 06mUnited Airlines
Deal found 11/6£536
ד' 26/1106:25MSO - LHR
1 stop20h 15mUnited Airlines
ד' 3/1211:10LHR - MSO
2 stops36h 00mUnited Airlines
Deal found 12/6£540
א' 21/907:25BZN - LHR
1 stop20h 55mDelta
ד' 8/1006:15LHR - BZN
2 stops17h 23mDelta
Deal found 10/6£546
ד' 26/1110:50MSO - LHR
1 stop18h 25mMultiple Airlines
ד' 3/1215:00LHR - MSO
1 stop15h 57mMultiple Airlines
Deal found 12/6£552
ש' 13/917:15FCA - LHR
2 stops30h 05mUnited Airlines
ב' 22/913:30LHR - FCA
2 stops37h 13mUnited Airlines
Deal found 11/6£560
א' 7/912:44BZN - LHR
1 stop13h 21mAmerican Airlines
א' 14/908:50LHR - BZN
2 stops17h 29mAmerican Airlines
Deal found 12/6£567
ד' 26/1105:35MSO - LHR
2 stops21h 40mDelta
ד' 3/1206:20LHR - MSO
2 stops20h 52mDelta
Deal found 11/6£580
ו' 19/913:51MSO - LHR
1 stop13h 59mAmerican Airlines
ו' 3/1009:15LHR - MSO
1 stop21h 03mAmerican Airlines
Deal found 11/6£589
א' 27/707:30BZN - LHR
1 stop15h 50mLufthansa
א' 3/811:25LHR - BZN
1 stop17h 07mLufthansa
Deal found 12/6£590

Cheapflights Fare Finder

Customise your flight search to find flights from Montana to Heathrow 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 13 יוני 2025.
Use the filters below to find and compare flights from Montana to London Heathrow Airport that are best for you.

Fly from

Montana

Fly to

Heathrow

Route

Depart

Return

Price

ButteLondon

BTM - LHR

BTMLHR

Butte Silver Bow Co

ד' 15/10

09:47-12:20

1 stop19h 33m

London Heathrow

ג' 21/10

14:05-22:21

2 stops39h 16m

£533

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

ד' 15/10

16:30-12:20

1 stop12h 50m

London Heathrow

ג' 21/10

14:05-11:39

2 stops28h 34m

£536

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

ב' 29/9

07:00-12:20

1 stop22h 20m

London Heathrow

ד' 8/10

14:05-21:11

2 stops38h 06m

£536

HelenaLondon

HLN - LHR

HLNLHR

Helena

ב' 25/8

14:30-06:30

2 stops33h 00m

London Heathrow

ג' 2/9

14:05-21:11

2 stops38h 06m

£536

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

ד' 26/11

06:25-09:40

1 stop20h 15m

London Heathrow

ד' 3/12

11:10-16:10

2 stops36h 00m

£540

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

א' 21/9

07:25-11:20

1 stop20h 55m

London Heathrow

ג' 7/10

06:15-16:38

2 stops17h 23m

£546

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

ד' 26/11

10:50-12:15

1 stop18h 25m

London Heathrow

ד' 3/12

15:00-23:57

1 stop15h 57m

£552

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

ש' 13/9

17:15-06:20

2 stops30h 05m

London Heathrow

ב' 22/9

13:30-19:43

2 stops37h 13m

£560

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

א' 7/9

12:44-09:05

1 stop13h 21m

London Heathrow

א' 14/9

08:50-19:19

2 stops17h 29m

£567

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

ד' 26/11

05:35-10:15

2 stops21h 40m

London Heathrow

ד' 3/12

06:20-20:12

2 stops20h 52m

£580

Flights are sorted by cheapest return flights first.

Deals found on 10/6

Showing 1-10 of 41 results
1
2
3
...
5

Best time to book a flight from Montana to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow 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 Heathrow Airport

What is the cheapest month to book a flight from Montana to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Montana to London Heathrow Airport (average of £112). Flying from Montana to London Heathrow Airport 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.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 13 יוני 2025.
To help decide which airline to fly from Montana to London, see what other customers have to say about Alaska Airlines, Delta and KLM. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

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

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

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
7,946 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

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
1,358 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

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
1,463 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

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.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

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 Heathrow. 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 Heathrow Airport one-way?

    £323 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Delta and Virgin Atlantic, with prices starting from £328 and £341, respectively.

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

    The most popular flight routes from Montana to London Heathrow Airport are Bozeman Gallatin Field - London Heathrow, Great Falls - London Heathrow and Missoula Johnson-Bell Field - London Heathrow.

  • Can I find deals for flights from Montana to Heathrow that include hotel bookings?

    Yes. In addition to deals on Montana to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Montana to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montana to Heathrow.

  • Can I find deals for business class flights from Montana to Heathrow?

    Yes. Cheapflights offers flight deals from Montana to Heathrow 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 Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Montana to London Heathrow Airport (average of £112). Flying from Montana to London Heathrow Airport 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
Deal
Hounslow
Croydon
Milton Keynes
Northampton
Gatwick
Luton
Slough
Wembley
Crawley
Eastbourne
Ilford
Southend-on-Sea
Watford
Hayes
Ipswich
Winchester
Folkestone
Maidstone
Swindon

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 Heathrow

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
Los Angeles to Heathrow flights
Dulles Intl to Heathrow flights
Boston to Heathrow flights
Newark to Gatwick flights
John F Kennedy Intl to London City flights
LaGuardia to Heathrow flights
San Francisco to Heathrow flights
Baltimore to Heathrow flights
O'Hare Intl to Heathrow flights
Dallas/Fort Worth to Heathrow flights
Seattle to Heathrow flights
Boston to Gatwick flights
LaGuardia to Gatwick flights
John F Kennedy Intl to Stansted flights
Newark to London City flights
Miami to Heathrow flights
Atlanta to Heathrow flights
Denver to Heathrow flights
Dulles Intl to Gatwick flights
Orlando to Heathrow flights
Los Angeles to London City flights
Hobby to Heathrow flights
Philadelphia to Heathrow flights
Dulles Intl to London City flights
Reagan-National to Heathrow flights
Boston to London City flights
Baltimore to Gatwick flights
Los Angeles to Gatwick flights
Sky Harbor Intl to Heathrow flights
Reagan-National to Gatwick flights
San Francisco to Gatwick flights
George Bush Intcntl to Heathrow flights
Newark to Stansted flights
Dallas/Fort Worth to Gatwick flights
San Francisco to London City flights
O'Hare Intl to Gatwick flights
Detroit to Heathrow flights
Minneapolis to Heathrow flights
Newark to Luton flights
Seattle to Gatwick flights
Austin to Heathrow flights
Tampa to Heathrow flights
Orlando to Gatwick flights
O'Hare Intl to London City flights
Miami to Gatwick flights
Portland 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 Heathrow?

When you search for this flight from Montana to Heathrow, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Montana to Heathrow?

Millions of users choose and trust Cheapflights to book the best flight deals from Montana to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Montana to Heathrow with no change fees?

Need flexible booking options for your flight to Heathrow from Montana? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Montana to Heathrow become cheaper?

Not ready to book yet? You can track prices for flights from Montana to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

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