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$287+ 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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — LHR
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap 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 December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/10. 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.
Tue 12/235:15 pmMSO - LHR
2 stops30h 55mUnited Airlines
Tue 1/61:25 pmLHR - MSO
2 stops39h 26mUnited Airlines
Deal found 12/10$1,082
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Thu 12/115:20 pmMSO - LHR
1 stop33h 20mUnited Airlines
Sat 12/276:00 pmLHR - MSO
2 stops53h 10mUnited Airlines
Deal found 12/10$1,110
This Cheapflightsfares deal was found by Cheapflights users on 12/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1710:49 amBZN - LHR
1 stop15h 51mLufthansa
Wed 12/246:35 amLHR - BZN
2 stops21h 33mLufthansa
Deal found 12/10$1,484
This Delta deal was found by Cheapflights users on 12/10. 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 12/172:17 pmBZN - LHR
2 stops14h 23mDelta
Wed 12/248:40 amLHR - BZN
2 stops22h 06mDelta
Deal found 12/10$1,604
This Delta deal was found by Cheapflights users on 12/10. 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.
Tue 12/238:10 amMSO - LHR
1 stop15h 55mDelta
Tue 1/611:05 amLHR - MSO
1 stop16h 09mDelta
Deal found 12/10$1,664
This Delta deal was found by Cheapflights users on 12/10. 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.
Sun 12/213:20 pmBZN - LHR
1 stop13h 20mDelta
Sat 1/311:05 amLHR - BZN
1 stop19h 41mDelta
Deal found 12/10$2,042
This Delta deal was found by Cheapflights users on 12/9. 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.
Thu 12/182:36 pmBZN - LHR
1 stop14h 04mDelta
Sat 1/311:05 amLHR - BZN
1 stop19h 41mDelta
Deal found 12/9$2,112

Find flight deals from Montana to Heathrow

Keep the following information in mind while searching for Montana to Heathrow flight deals. Data was last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$606
(Cheapflightsfares)

One-way from

$287
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$1,201
Provider with most accurate pricing for Bozeman Gallatin Field-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bozeman Gallatin Field-London (LON) flights.
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From Montana to London Heathrow
Search Deals
One-way flight from Montana to London Heathrow
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($146 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 12, 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

Thu 1/15

12:46 pm-11:15 am

1 stop15h 29m

London Heathrow

Thu 3/12

8:15 pm-9:22 pm

2 stops31h 07m

$606

ButteLondon

BTM - LHR

BTMLHR

Butte Silver Bow Co

Thu 1/8

9:14 am-9:40 am

1 stop17h 26m

London Heathrow

Mon 1/12

7:40 am-10:45 pm

2 stops22h 05m

$623

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Fri 1/23

2:45 pm-9:40 am

1 stop11h 55m

London Heathrow

Tue 1/27

6:35 am-9:23 pm

2 stops21h 48m

$628

HelenaLondon

HLN - LHR

HLNLHR

Helena

Sat 1/24

6:15 am-9:40 am

1 stop20h 25m

London Heathrow

Sat 1/31

6:35 am-1:41 pm

2 stops38h 06m

$628

HelenaLondon

HLN - LHR

HLNLHR

Helena

Fri 1/23

2:27 pm-9:40 am

1 stop12h 13m

London Heathrow

Tue 1/27

6:35 am-1:41 pm

2 stops38h 06m

$628

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Sat 1/24

11:40 am-10:00 am

1 stop15h 20m

London Heathrow

Sat 1/31

8:40 am-8:06 pm

2 stops18h 26m

$629

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Thu 1/8

6:22 am-7:05 am

1 stop17h 43m

London Heathrow

Thu 1/15

8:40 am-7:25 pm

2 stops17h 45m

$629

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Wed 1/28

7:23 am-10:30 am

1 stop20h 07m

London Heathrow

Fri 2/6

6:30 am-10:27 pm

2 stops22h 57m

$629

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Fri 1/30

11:40 am-10:00 am

1 stop15h 20m

London Heathrow

Fri 2/6

6:30 am-8:06 pm

2 stops20h 36m

$629

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Sat 2/21

11:40 am-10:00 am

1 stop15h 20m

London Heathrow

Sat 3/7

8:40 am-7:39 pm

2 stops17h 59m

$629

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

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 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, January is the cheapest month in which you can book a flight from Montana to London Heathrow Airport (average of $604). Flying from Montana to London Heathrow Airport in June is currently the most expensive (average of $1,115). 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?

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.

  • How long is the flight from Montana to London Heathrow Airport?

    Departing from Montana to London Heathrow Airport will take you 15h 29m. There are 4556 mi between Montana and London Heathrow Airport. This flight may include one or multiple stops.

  • 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, Kalispell Glacier Park - 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 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, January is the cheapest month in which you can book a flight from Montana to London Heathrow Airport (average of $604). Flying from Montana to London Heathrow Airport in June is currently the most expensive (average of $1,115). 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
Ilford
Hounslow
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Croydon
Orpington
Northampton
Watford
Hayes
Borehamwood
Broadway
Aylesbury
Chipping Norton
Horley
Kingston upon Thames
Wembley

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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 3 airlines flying from Montana to Heathrow

Discover the top 3 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$604Average$853FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$645Average$873FlexibilityNo cancel feeOn-time69%
Virgin AtlanticCheapest$707Average$1,046FlexibilityNo cancel feeOn-time72%

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