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Heathrow

$536+ Cheap flights from Montana to Heathrow (LHR)

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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — LHR
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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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 May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$727
(American Airlines)

One-way from

$536
(Delta)

Popular in

July

Cheapest in

February

Average price

$862
Provider with most accurate pricing for Bozeman Gallatin Field-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Bozeman Gallatin Field-London (LON) flights.
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From Montana to London Heathrow
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One-way flight from Montana to London Heathrow
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Highest demand for flights based on searches. 21% potential increase in price ($238 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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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 May 1, 2025.

This British Airways deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/261:58 pmMSO - LHR
1 stop15h 17mMultiple Airlines
Wed 12/32:55 pmLHR - MSO
1 stop29h 00mMultiple Airlines
Deal found 4/30$714
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/123:22 pmBZN - LHR
1 stop12h 08mAmerican Airlines
Fri 9/198:50 amLHR - BZN
2 stops17h 38mAmerican Airlines
Deal found 4/30$727
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/266:15 amMSO - LHR
1 stop20h 25mUnited Airlines
Wed 12/33:00 pmLHR - MSO
2 stops32h 10mUnited Airlines
Deal found 4/30$732
This Delta deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/265:40 amMSO - LHR
2 stops19h 40mDelta
Wed 12/36:20 amLHR - MSO
2 stops20h 52mDelta
Deal found 4/30$745
This Delta deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/252:00 pmBZN - LHR
1 stop16h 30mDelta
Sun 8/316:15 amLHR - BZN
2 stops21h 12mDelta
Deal found 4/30$750
This KLM deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1911:46 amBZN - LHR
1 stop19h 29mKLM
Fri 9/2612:25 pmLHR - BZN
1 stop18h 33mKLM
Deal found 4/30$758
This United Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/252:41 pmBZN - LHR
1 stop14h 39mUnited Airlines
Sun 8/315:40 pmLHR - BZN
2 stops32h 15mUnited Airlines
Deal found 5/1$783
This Virgin Atlantic deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/191:05 pmMSO - LHR
2 stops18h 10mVirgin Atlantic
Fri 10/39:20 amLHR - MSO
2 stops21h 37mVirgin Atlantic
Deal found 4/30$803
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/247:52 amBIL - LHR
1 stop18h 08mAmerican Airlines
Sat 11/111:55 amLHR - BIL
1 stop14h 55mAmerican Airlines
Deal found 4/30$808
This Delta deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/246:25 amBIL - LHR
2 stops21h 45mDelta
Sat 11/19:20 amLHR - BIL
2 stops19h 24mDelta
Deal found 4/30$813
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/265:14 pmFCA - LHR
1 stop33h 26mUnited Airlines
Fri 8/811:25 amLHR - FCA
1 stop17h 05mUnited Airlines
Deal found 4/30$850
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/2611:59 amFCA - LHR
2 stops18h 11mDelta
Fri 8/89:20 amLHR - FCA
2 stops21h 31mDelta
Deal found 5/1$879

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated May 1, 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

Fri 9/12

3:22 pm-10:30 am

1 stop12h 08m

London Heathrow

Fri 9/19

8:50 am-7:28 pm

2 stops17h 38m

$727

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Mon 8/25

2:00 pm-1:30 pm

1 stop16h 30m

London Heathrow

Sun 8/31

6:15 am-8:27 pm

2 stops21h 12m

$750

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Fri 9/19

11:46 am-2:15 pm

1 stop19h 29m

London Heathrow

Fri 9/26

12:25 pm-11:58 pm

1 stop18h 33m

$758

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Fri 9/19

12:54 pm-10:55 am

1 stop15h 01m

London Heathrow

Fri 10/3

1:10 pm-11:33 pm

1 stop17h 23m

$758

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Fri 9/19

4:17 pm-2:10 pm

1 stop14h 53m

London Heathrow

Fri 10/3

2:05 pm-11:48 am

2 stops28h 43m

$775

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Mon 8/25

2:41 pm-12:20 pm

1 stop14h 39m

London Heathrow

Sun 8/31

5:40 pm-6:55 pm

2 stops32h 15m

$783

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Fri 9/19

1:05 pm-2:15 pm

2 stops18h 10m

London Heathrow

Fri 10/3

9:20 am-11:57 pm

2 stops21h 37m

$803

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Fri 10/24

7:52 am-9:00 am

1 stop18h 08m

London Heathrow

Sat 11/1

11:55 am-8:50 pm

1 stop14h 55m

$808

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Fri 10/24

6:25 am-11:10 am

2 stops21h 45m

London Heathrow

Sat 11/1

9:20 am-10:44 pm

2 stops19h 24m

$813

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Sat 7/26

5:14 pm-9:40 am

1 stop33h 26m

London Heathrow

Fri 8/8

11:25 am-9:30 pm

1 stop17h 05m

$850

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 35 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 round-trip 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, November is the cheapest month in which you can book a flight from Montana to London Heathrow Airport (average of $661). Flying from Montana to London Heathrow Airport in June is currently the most expensive (average of $1,103). 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 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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 May 1, 2025.
Get a feel of what it's like to fly with Delta, KLM and SWISS from Montana to London by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,589 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,446 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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?

    The cheapest airlines for a one-way flight from Montana to London Heathrow Airport are Delta ($536), Air France ($709), and Air Canada ($815).

  • 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 vacation 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, November is the cheapest month in which you can book a flight from Montana to London Heathrow Airport (average of $661). Flying from Montana to London Heathrow Airport in June is currently the most expensive (average of $1,103). 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

Traveling to a place near Montana?

Book flights to Montana if you plan to visit one of these locations
Hayes
Hounslow
Thornton Heath
Luton
Horley
Canterbury
Harrow
Wembley
Dover
Stratford-upon-Avon
Gatwick
Orpington
Watford
Northampton
Croydon
Borehamwood
Folkestone
Ilford
Broadway
Aylesbury

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Alternative routes for Montana to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Montana to Heathrow

Discover the top 4 airlines that operate flights from Montana to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$613Average$741FlexibilityNo cancel feeOn-time75%
DeltaCheapest$622Average$800FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$647Average$1,084FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$655Average$852FlexibilityNo cancel feeOn-time69%

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