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Cheap flights from Montana to London Heathrow Airport from £322

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 17/8. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — LHR
27 Apr — 4 May1
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 22 April 2025.

Round-trip from

£566

One-way from

£322

Popular in

July

Cheapest in

February

Average price

£721
American Airlines
  • American Airlines
  • 8/9-24/9
  • 3 total stops
  • 31h 31m total
  • Montana to London
Virgin Atlantic
  • Virgin Atlantic
  • 17/8
  • 1 total stop
  • 14h 10m total
  • Montana to London
Highest demand for flights based on searches. 21% potential increase in price (£134 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£23 potential savings vs. average return price).
Average for round-trip flights in April 2025

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 22 April 2025.

Wed 1/1012:50BZN - LHR
1 stop15h 55mUnited Airlines
Fri 31/1013:30LHR - BZN
3 stops31h 05mUnited Airlines
Deal found 22/4£567
Tue 2/905:00BIL - LHR
2 stops22h 00mAir Canada
Wed 15/1009:30LHR - BIL
2 stops38h 43mAir Canada
Deal found 21/4£572
Mon 11/814:34HLN - LHR
1 stop12h 06mUnited Airlines
Tue 26/814:05LHR - HLN
2 stops32h 59mUnited Airlines
Deal found 21/4£572
Tue 2/911:25BZN - LHR
1 stop18h 45mKLM
Thu 11/906:30LHR - BZN
2 stops14h 47mKLM
Deal found 22/4£573
Wed 12/1106:15MSO - LHR
1 stop20h 25mUnited Airlines
Tue 18/1118:00LHR - MSO
2 stops34h 26mUnited Airlines
Deal found 22/4£577
Mon 1/914:35BIL - LHR
1 stop14h 45mUnited Airlines
Fri 17/1010:50LHR - BIL
2 stops18h 54mUnited Airlines
Deal found 21/4£578
Mon 1/905:45BIL - LHR
1 stop21h 05mDelta
Wed 15/1011:45LHR - BIL
2 stops17h 59mDelta
Deal found 21/4£578
Tue 12/813:03HLN - LHR
1 stop13h 47mVirgin Atlantic
Mon 25/820:55LHR - HLN
2 stops32h 38mVirgin Atlantic
Deal found 21/4£578
Sun 31/814:10BZN - LHR
1 stop22h 50mDelta
Thu 11/906:30LHR - BZN
2 stops14h 47mDelta
Deal found 22/4£579
Wed 12/1113:05MSO - LHR
2 stops15h 35mDelta
Tue 18/1106:30LHR - MSO
2 stops20h 42mDelta
Deal found 22/4£582
Wed 12/1105:40MSO - LHR
1 stop21h 20mMultiple Airlines
Tue 18/1110:45LHR - MSO
1 stop13h 42mMultiple Airlines
Deal found 22/4£589
Mon 11/813:03HLN - LHR
1 stop13h 47mMultiple Airlines
Tue 26/810:55LHR - HLN
1 stop18h 38mMultiple Airlines
Deal found 21/4£589

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 22 April 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

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Mon 8/9

15:22-12:15

1 stop13h 53m

London Heathrow

Wed 24/9

08:50-19:28

2 stops17h 38m

£566

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Wed 1/10

16:20-14:10

1 stop14h 50m

London Heathrow

Fri 31/10

13:30-14:35

3 stops31h 05m

£566

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Tue 2/9

07:00-10:00

2 stops20h 00m

London Heathrow

Fri 17/10

14:05-20:44

2 stops37h 39m

£572

HelenaLondon

HLN - LHR

HLNLHR

Helena

Mon 11/8

14:34-09:40

1 stop12h 06m

London Heathrow

Tue 26/8

14:05-16:04

2 stops32h 59m

£572

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Mon 1/9

14:35-12:20

1 stop14h 45m

London Heathrow

Fri 17/10

10:50-22:44

2 stops18h 54m

£578

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Wed 1/10

11:46-14:15

1 stop19h 29m

London Heathrow

Fri 31/10

06:30-22:21

2 stops21h 51m

£578

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Mon 1/9

05:45-09:50

1 stop21h 05m

London Heathrow

Wed 15/10

11:45-22:44

2 stops17h 59m

£578

HelenaLondon

HLN - LHR

HLNLHR

Helena

Tue 12/8

13:03-09:50

1 stop13h 47m

London Heathrow

Mon 25/8

20:55-22:33

2 stops32h 38m

£578

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Mon 8/9

11:25-08:55

2 stops14h 30m

London Heathrow

Wed 24/9

11:45-00:52

2 stops20h 07m

£582

HelenaLondon

HLN - LHR

HLNLHR

Helena

Mon 11/8

13:03-09:50

1 stop13h 47m

London Heathrow

Tue 26/8

10:55-22:33

1 stop18h 38m

£589

Flights are sorted by cheapest return flights first.

Deals found on 21/4

Showing 1-10 of 46 results
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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 22 April 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.

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
8.0
Very Good

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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?

    £322 is the cheapest one-way deal found within the past few days, from Virgin Atlantic. You may also be able to find cheap deals on Air France and Delta, with prices starting from £346 and £349, respectively.

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

  • 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
Milton Keynes
Gatwick
Luton
Slough
Croydon
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Northampton
Ilford
Hayes
Southend-on-Sea
Crawley
Wembley
Ipswich
Maidstone
Winchester
Swindon
Folkestone
Dartford

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Alternative routes for Montana to Heathrow

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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.

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