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Heathrow

$314+ 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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — LHR
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
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 julio 31, 2025.

Round-trip from

$578
(KLM)

One-way from

$314
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$1,463
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. 22% potential increase in price ($268 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($51 potential savings vs. average RT price).
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Average for round-trip flights in July 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 julio 31, 2025.

This KLM deal was found by Cheapflights users on 7/31. 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.
lun. 9/291:05 pmGTF - LHR
1 stop13h 45mKLM
mié. 10/86:30 amLHR - GTF
2 stops17h 59mKLM
Deal found 7/31$578
This Delta deal was found by Cheapflights users on 7/31. 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.
sáb. 9/201:05 pmGTF - LHR
2 stops23h 55mDelta
mar. 9/306:15 amLHR - GTF
2 stops23h 13mDelta
Deal found 7/31$581
This Virgin Atlantic deal was found by Cheapflights users on 7/29. 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.
mié. 10/155:30 amMSO - LHR
1 stop21h 20mVirgin Atlantic
mié. 10/226:15 amLHR - MSO
2 stops18h 25mVirgin Atlantic
Deal found 7/29$583
This Air France deal was found by Cheapflights users on 7/29. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/265:35 amMSO - LHR
1 stop21h 25mMultiple Airlines
mié. 12/38:40 amLHR - MSO
2 stops18h 32mMultiple Airlines
Deal found 7/29$584
This Delta deal was found by Cheapflights users on 7/29. 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.
mié. 10/15:30 amMSO - LHR
1 stop21h 20mDelta
mié. 10/86:30 amLHR - MSO
2 stops21h 48mDelta
Deal found 7/29$585
This Delta deal was found by Cheapflights users on 7/31. 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.
lun. 8/251:00 pmHLN - LHR
2 stops17h 10mDelta
mar. 9/26:15 amLHR - HLN
2 stops22h 58mDelta
Deal found 7/31$586
This KLM deal was found by Cheapflights users on 7/29. 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.
mié. 10/13:33 pmMSO - LHR
1 stop14h 37mKLM
mié. 10/811:00 amLHR - MSO
1 stop13h 40mKLM
Deal found 7/29$590
This KLM deal was found by Cheapflights users on 7/28. 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.
mar. 8/2611:44 amBZN - LHR
1 stop15h 06mKLM
mar. 9/26:30 amLHR - BZN
2 stops17h 18mKLM
Deal found 7/28$612
This Delta deal was found by Cheapflights users on 7/31. 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.
mié. 9/105:28 pmBZN - LHR
1 stop13h 47mDelta
mié. 9/176:15 amLHR - BZN
2 stops17h 30mDelta
Deal found 7/31$621
This Virgin Atlantic deal was found by Cheapflights users on 7/29. 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.
mié. 10/152:29 pmBZN - LHR
1 stop16h 01mVirgin Atlantic
mié. 10/226:15 amLHR - BZN
2 stops18h 24mVirgin Atlantic
Deal found 7/29$622
This Delta deal was found by Cheapflights users on 7/30. 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.
mié. 11/196:25 amBIL - LHR
2 stops18h 55mDelta
jue. 11/276:20 amLHR - BIL
2 stops17h 37mDelta
Deal found 7/30$626
This United Airlines deal was found by Cheapflights users on 7/31. 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.
lun. 8/255:20 pmHLN - LHR
1 stop33h 20mUnited Airlines
mar. 9/22:05 pmLHR - HLN
2 stops38h 06mUnited Airlines
Deal found 7/31$626

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 julio 31, 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

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

lun. 9/29

1:05 pm-9:50 am

1 stop13h 45m

London Heathrow

mié. 10/8

6:30 am-5:29 pm

2 stops17h 59m

$578

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

sáb. 9/20

1:05 pm-8:00 pm

2 stops23h 55m

London Heathrow

mar. 9/30

6:15 am-10:28 pm

2 stops23h 13m

$581

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

mié. 10/15

5:30 am-9:50 am

1 stop21h 20m

London Heathrow

mié. 10/22

6:15 am-5:40 pm

2 stops18h 25m

$583

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

mié. 11/26

5:35 am-10:00 am

1 stop21h 25m

London Heathrow

mié. 12/3

8:40 am-8:12 pm

2 stops18h 32m

$584

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

mié. 10/1

5:30 am-9:50 am

1 stop21h 20m

London Heathrow

mié. 10/8

6:30 am-9:18 pm

2 stops21h 48m

$585

HelenaLondon

HLN - LHR

HLNLHR

Helena

lun. 8/25

1:00 pm-1:10 pm

2 stops17h 10m

London Heathrow

mar. 9/2

6:15 am-10:13 pm

2 stops22h 58m

$586

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

mié. 10/1

3:33 pm-1:10 pm

1 stop14h 37m

London Heathrow

mié. 10/8

11:00 am-5:40 pm

1 stop13h 40m

$590

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

mar. 8/26

11:44 am-9:50 am

1 stop15h 06m

London Heathrow

mar. 9/2

6:30 am-4:48 pm

2 stops17h 18m

$612

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

mié. 9/10

5:28 pm-2:15 pm

1 stop13h 47m

London Heathrow

mié. 9/17

6:15 am-4:45 pm

2 stops17h 30m

$621

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

mié. 10/15

2:29 pm-1:30 pm

1 stop16h 01m

London Heathrow

mié. 10/22

6:15 am-5:39 pm

2 stops18h 24m

$622

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 40 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 $1,097). 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 to fly round-trip from Montana to London Heathrow Airport?

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 julio 31, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and KLM from Montana to London Heathrow Airport by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
KLM
7.8
Good
1,383 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Virgin Atlantic
7.4
Good
655 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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 KLM ($378), United Airlines ($399), and Lufthansa ($439).

  • 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 Great Falls - 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 $1,097). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Harrow
Canterbury
Dover
Stratford-upon-Avon
Orpington
Watford
Northampton
Gatwick
Borehamwood
Dartford
Broadway
Aylesbury
Chelmsford
Folkestone
Southend-on-Sea
Chichester
Swindon

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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 2 airlines flying from Montana to Heathrow

Discover the top 2 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 julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$613Average$807FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$645Average$862FlexibilityNo cancel feeOn-time69%

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