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.

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).

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, Missoula Johnson-Bell Field - London Heathrow and Billings Logan Intl - London Heathrow.

What is the cheapest month to fly from Montana to London Heathrow Airport?

February can be a great time to fly to London Heathrow Airport from Montana with a flight ticket averaging about £672. Cheapflights users have found deals in the month of February for as cheap as £547. The most expensive prices can be found in the month of July.

What is the cheapest time of day to fly from MT to LHR?

When flying from Montana to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

£338+ Flights from Montana to London Heathrow Airport

Cheap flight deals from Montana to Heathrow

Round-trip from	£428
One-way from	£338
Popular in	July
Cheapest in	February
Average price	£1,077

KLM
30/9-8/10
3 total stops
31h 57m total
Montana to London

Search Deals

United Airlines
20/9
2 total stops
35h 05m 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 July 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 11 July 2025.

Tue 30/913:05GTF - LHR

1 stop13h 45mKLM

Wed 8/1006:30LHR - GTF

2 stops18h 12mKLM

Deal found 10/7£428

Tue 5/813:00MSO - LHR

1 stop13h 50mAir France

Tue 12/806:15LHR - MSO

2 stops18h 29mAir France

Deal found 10/7£430

Wed 6/814:45FCA - LHR

1 stop15h 25mKLM

Fri 29/811:45LHR - FCA

2 stops19h 08mKLM

Deal found 9/7£431

Wed 26/1108:00MSO - LHR

1 stop21h 15mKLM

Wed 3/1206:30LHR - MSO

2 stops20h 42mKLM

Deal found 10/7£431

Mon 25/805:50HLN - LHR

1 stop21h 00mDelta

Tue 2/906:30LHR - HLN

2 stops22h 43mDelta

Deal found 9/7£431

Tue 5/805:30MSO - LHR

2 stops24h 40mDelta

Tue 12/806:15LHR - MSO

2 stops18h 29mDelta

Deal found 10/7£433

Wed 6/812:00FCA - LHR

2 stops18h 10mDelta

Fri 29/809:00LHR - FCA

2 stops21h 53mDelta

Deal found 9/7£434

Mon 25/813:00HLN - LHR

2 stops17h 30mKLM

Tue 2/920:55LHR - HLN

2 stops32h 18mKLM

Deal found 9/7£435

Wed 13/815:18BZN - LHR

1 stop11h 32mDelta

Fri 22/806:15LHR - BZN

2 stops17h 33mDelta

Deal found 10/7£459

Wed 1/1011:55BZN - LHR

1 stop19h 20mKLM

Thu 9/1006:30LHR - BZN

2 stops17h 08mKLM

Deal found 10/7£460

Sun 24/806:00GTF - LHR

1 stop24h 10mDelta

Sun 31/809:00LHR - GTF

2 stops18h 34mDelta

Deal found 10/7£464

Mon 29/914:31GTF - LHR

2 stops36h 04mUnited Airlines

Wed 8/1015:50LHR - GTF

2 stops36h 21mUnited Airlines

Deal found 9/7£465

Best flights from Montana to Heathrow
Discover carefully curated flight deals from Montana to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 July 2025.

Tue 30/913:05GTF - LHR

1 stop13h 45mKLM

Wed 8/1006:30LHR - GTF

2 stops18h 12mKLM

Deal found 10/7£428

Tue 5/813:00MSO - LHR

1 stop13h 50mAir France

Tue 12/806:15LHR - MSO

2 stops18h 29mAir France

Deal found 10/7£430

Mon 25/805:50HLN - LHR

1 stop21h 00mDelta

Tue 2/906:30LHR - HLN

2 stops22h 43mDelta

Deal found 9/7£431

Wed 13/814:18BZN - LHR

1 stop16h 12mVirgin Atlantic

Thu 21/811:30LHR - BZN

2 stops19h 00mVirgin Atlantic

Deal found 10/7£459

Mon 29/914:31GTF - LHR

2 stops36h 04mUnited Airlines

Wed 8/1015:50LHR - GTF

2 stops36h 21mUnited Airlines

Deal found 9/7£465

Thu 7/806:20BIL - LHR

1 stop23h 50mMultiple Airlines

Thu 14/812:25LHR - BIL

1 stop17h 45mMultiple Airlines

Deal found 10/7£494

Fri 22/805:49BIL - LHR

1 stop20h 21mAmerican Airlines

Fri 29/812:15LHR - BIL

1 stop17h 45mAmerican Airlines

Deal found 9/7£586

Wed 6/814:45FCA - LHR

1 stop15h 25mKLM

Fri 29/811:45LHR - FCA

2 stops19h 08mKLM

Deal found 9/7£431

Tue 5/805:30MSO - LHR

2 stops24h 40mDelta

Tue 12/806:15LHR - MSO

2 stops18h 29mDelta

Deal found 10/7£433

Wed 13/807:30BZN - LHR

3 stops19h 30mUnited Airlines

Fri 22/807:30LHR - BZN

2 stops18h 25mUnited Airlines

Deal found 10/7£472

Wed 26/1108:00MSO - LHR

1 stop21h 15mKLM

Wed 3/1206:30LHR - MSO

2 stops20h 42mKLM

Deal found 10/7£431

Wed 6/812:00FCA - LHR

2 stops18h 10mDelta

Fri 29/809:00LHR - FCA

2 stops21h 53mDelta

Deal found 9/7£434

Last-minute flights from Montana to Heathrow
Discover last-minute flight deals from Montana to Heathrow. Data last updated 11 July 2025 and is based on user searches.

Wed 16/711:43GTF - LHR

2 stops16h 42mDelta

Wed 30/710:55LHR - GTF

2 stops18h 50mDelta

Deal found 11/7£717

Thu 17/707:15FCA - LHR

1 stop22h 55mDelta

Thu 24/712:25LHR - FCA

1 stop18h 26mDelta

Deal found 10/7£639

Thu 17/712:42FCA - LHR

2 stops15h 43mUnited Airlines

Thu 24/709:30LHR - FCA

2 stops20h 18mUnited Airlines

Deal found 10/7£712

Thu 17/711:43GTF - LHR

2 stops18h 27mMultiple Airlines

Thu 31/706:30LHR - GTF

2 stops18h 09mMultiple Airlines

Deal found 11/7£770

Fri 18/718:19GTF - LHR

2 stops14h 56mKLM

Thu 31/706:30LHR - GTF

2 stops18h 09mKLM

Deal found 11/7£807

Sun 20/714:35GTF - LHR

1 stop14h 45mUnited Airlines

Mon 4/816:40LHR - GTF

2 stops35h 33mUnited Airlines

Deal found 11/7£603

Tue 5/813:00MSO - LHR

1 stop13h 50mAir France

Tue 12/806:15LHR - MSO

2 stops18h 29mAir France

Deal found 10/7£430

Tue 5/805:30MSO - LHR

2 stops24h 40mDelta

Tue 12/806:15LHR - MSO

2 stops18h 29mDelta

Deal found 10/7£433

Tue 5/813:00MSO - LHR

1 stop13h 50mKLM

Tue 12/812:25LHR - MSO

1 stop18h 23mKLM

Deal found 10/7£436

Wed 6/814:45FCA - LHR

1 stop15h 25mKLM

Fri 29/811:45LHR - FCA

2 stops19h 08mKLM

Deal found 9/7£431

Wed 6/812:00FCA - LHR

2 stops18h 10mDelta

Fri 29/809:00LHR - FCA

2 stops21h 53mDelta

Deal found 9/7£434

Wed 13/814:18BZN - LHR

1 stop16h 12mVirgin Atlantic

Thu 21/811:30LHR - BZN

2 stops19h 00mVirgin Atlantic

Deal found 10/7£459

Cheapflights Fare Finder

Use the filters below to find and compare flights from Montana to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Tue 30/9

13:05-09:50

1 stop13h 45m

London Heathrow

Wed 8/10

06:30-17:42

2 stops18h 12m

£428

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Tue 5/8

13:00-09:50

1 stop13h 50m

London Heathrow

Tue 12/8

06:15-17:44

2 stops18h 29m

£430

HelenaLondon

HLN - LHR

HLNLHR

Helena

Mon 25/8

05:50-09:50

1 stop21h 00m

London Heathrow

Tue 2/9

06:30-22:13

2 stops22h 43m

£431

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 6/8

14:45-13:10

1 stop15h 25m

London Heathrow

Fri 29/8

11:45-23:53

2 stops19h 08m

£431

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Wed 26/11

08:00-12:15

1 stop21h 15m

London Heathrow

Wed 3/12

06:30-20:12

2 stops20h 42m

£431

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Tue 5/8

05:30-13:10

2 stops24h 40m

London Heathrow

Tue 12/8

06:15-17:44

2 stops18h 29m

£433

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 6/8

12:00-13:10

2 stops18h 10m

London Heathrow

Fri 29/8

09:00-23:53

2 stops21h 53m

£434

HelenaLondon

HLN - LHR

HLNLHR

Helena

Mon 25/8

13:00-13:30

2 stops17h 30m

London Heathrow

Tue 2/9

20:55-22:13

2 stops32h 18m

£435

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Wed 13/8

14:18-13:30

1 stop16h 12m

London Heathrow

Thu 21/8

11:30-23:30

2 stops19h 00m

£459

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Wed 1/10

11:55-14:15

1 stop19h 20m

London Heathrow

Thu 9/10

06:30-16:38

2 stops17h 08m

£460

Flights are sorted by cheapest return flights first.

Deals found on 11/7

Showing 1-10 of 29 results

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.

Reviews of airlines servicing Heathrow

See what other customers who have flown with Delta, KLM, andAir France from Montana to London Heathrow Airport have to say. 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.

Delta

8.0

Very Good

7,951 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very Good

7,951 reviews

Delta

8.0

Very Good

7,951 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

KLM

7.8

Good

1,372 reviews

Delta

8.0

Very Good

7,951 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Air France

7.5

Good

1,467 reviews

Delta

8.0

Very Good

7,951 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,848 reviews

Delta

8.0

Very Good

7,951 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Virgin Atlantic

7.4

Good

654 reviews

Delta

8.0

Very Good

7,951 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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, Missoula Johnson-Bell Field - London Heathrow and Billings Logan Intl - 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

Hounslow

Croydon

Milton Keynes

Deal

Northampton

Gatwick

Slough

Luton

Wembley

Crawley

Eastbourne

Ilford

Hayes

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Folkestone

Southend-on-Sea

Watford

Winchester

Swindon

Maidstone

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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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Cheap flights from Montana to London Heathrow Airport from £338

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 20/9. Fares are subject to change and may not be available on all flights or dates of travel.

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 11 July 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Montana to Heathrow

Cheapest flights from Montana to HeathrowExplore 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 11 July 2025.

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 11 July 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Montana to London Heathrow Airport that are best for you.

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.

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?

Reviews of airlines servicing Heathrow

See what other customers who have flown with Delta, KLM, andAir France from Montana to London Heathrow Airport have to say. 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.

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 most popular routes from Montana to London Heathrow Airport?

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

How can I find direct flights from Montana to Heathrow?

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

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

Travelling to a place near Montana?

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.

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?

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

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

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

100% Free

Book with Flexibility

Travel Smart

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 11 July 2025.