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$311+ 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 1/30. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — LHR
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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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 November 26, 2025.

This Delta deal was found by Cheapflights users on 11/25. 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 12/53:00 pmBZN - LHR
1 stop12h 30mDelta
Tue 12/96:20 amLHR - BZN
2 stops24h 17mDelta
Deal found 11/25$639
This Delta deal was found by Cheapflights users on 11/25. 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 12/56:25 amBIL - LHR
1 stop17h 40mDelta
Tue 12/96:20 amLHR - BIL
2 stops24h 28mDelta
Deal found 11/25$639
This United Airlines deal was found by Cheapflights users on 11/24. 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 12/316:10 amFCA - LHR
1 stop20h 30mUnited Airlines
Wed 2/2510:05 amLHR - FCA
1 stop32h 49mUnited Airlines
Deal found 11/24$644
This Delta deal was found by Cheapflights users on 11/25. 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 12/55:00 amFCA - LHR
2 stops19h 50mDelta
Tue 12/98:40 amLHR - FCA
2 stops39h 45mDelta
Deal found 11/25$645
This Virgin Atlantic deal was found by Cheapflights users on 11/25. 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 12/511:45 amBZN - LHR
1 stop15h 15mVirgin Atlantic
Tue 12/911:05 amLHR - BZN
1 stop19h 32mVirgin Atlantic
Deal found 11/25$646
This American Airlines deal was found by Cheapflights users on 11/24. 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.
Wed 12/3112:58 pmFCA - LHR
2 stops17h 17mMultiple Airlines
Wed 2/2511:45 amLHR - FCA
2 stops19h 12mMultiple Airlines
Deal found 11/24$649
This United Airlines deal was found by Cheapflights users on 11/25. 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.
Fri 12/56:30 amHLN - LHR
1 stop20h 10mUnited Airlines
Tue 12/99:30 amLHR - HLN
2 stops18h 52mUnited Airlines
Deal found 11/25$666
This United Airlines deal was found by Cheapflights users on 11/25. 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.
Fri 12/52:37 pmFCA - LHR
1 stop12h 03mUnited Airlines
Tue 12/911:35 amLHR - FCA
1 stop17h 11mUnited Airlines
Deal found 11/25$747
This United Airlines deal was found by Cheapflights users on 11/25. 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.
Fri 12/122:37 pmFCA - LHR
2 stops22h 58mUnited Airlines
Tue 12/164:20 pmLHR - FCA
2 stops50h 16mUnited Airlines
Deal found 11/25$775
This Kiwi.com deal was found by Cheapflights users on 11/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1110:49 amBZN - LHR
1 stop15h 51mLufthansa
Thu 12/181:35 pmLHR - BZN
1 stop15h 54mLufthansa
Deal found 11/24$792
This United Airlines deal was found by Cheapflights users on 11/23. 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 12/106:15 amMSO - LHR
1 stop20h 25mUnited Airlines
Sat 1/1011:10 amLHR - MSO
2 stops33h 25mUnited Airlines
Deal found 11/23$828
This United Airlines deal was found by Cheapflights users on 11/26. 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.
Sun 11/306:20 amMSO - LHR
1 stop20h 20mUnited Airlines
Mon 12/86:00 pmLHR - MSO
2 stops34h 18mUnited Airlines
Deal found 11/26$829

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 November 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$609
(American Airlines)

One-way from

$311
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$744
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. 7% potential increase in price ($76 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($56 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 26, 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

1:42 pm-11:35 am

1 stop14h 53m

London Heathrow

Thu 3/12

7:30 am-8:37 pm

2 stops19h 07m

$609

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Tue 4/14

2:00 pm-1:30 pm

1 stop16h 30m

London Heathrow

Tue 4/28

8:40 am-10:24 pm

2 stops20h 44m

$612

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 4/8

12:10 pm-9:50 am

1 stop14h 40m

London Heathrow

Thu 4/30

10:55 am-5:42 pm

1 stop13h 47m

$618

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 4/8

12:44 pm-12:10 pm

2 stops16h 26m

London Heathrow

Thu 4/30

4:30 pm-11:58 pm

1 stop14h 28m

$623

ButteLondon

BTM - LHR

BTMLHR

Butte Silver Bow Co

Fri 1/23

6:10 pm-8:10 pm

2 stops19h 00m

London Heathrow

Tue 1/27

10:00 am-5:11 pm

2 stops38h 11m

$623

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Fri 1/16

12:40 pm-10:00 am

1 stop14h 20m

London Heathrow

Tue 1/20

5:50 pm-8:14 pm

2 stops33h 24m

$625

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

11:10 am-10:45 pm

2 stops42h 35m

$631

ButteLondon

BTM - LHR

BTMLHR

Butte Silver Bow Co

Fri 1/9

9:14 am-9:40 am

1 stop17h 26m

London Heathrow

Fri 1/16

6:00 pm-10:45 pm

2 stops35h 45m

$631

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Thu 1/8

1:42 pm-8:15 am

1 stop11h 33m

London Heathrow

Tue 1/13

7:10 pm-12:50 pm

2 stops24h 40m

$632

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Thu 1/8

10:50 am-7:55 am

2 stops14h 05m

London Heathrow

Mon 1/12

1:25 pm-11:44 am

2 stops29h 19m

$634

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/24

Showing 1-10 of 43 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 $1,155). 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 14h 40m. There are 4512 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, Missoula Johnson-Bell Field - London Heathrow and Kalispell Glacier Park - 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 $1,155). 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
Ilford
Hayes
Southend-on-Sea
Harrow
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Chipping Norton
Wembley
Folkestone

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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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Boston to Stansted flights
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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 November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$604Average$905FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$645Average$873FlexibilityNo cancel feeOn-time69%

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