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Heathrow

$285+ 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 7/26. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — LHR
Apr 12 — Apr 191
Sun 4/12
Sun 4/19
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 March 13, 2026.

This United Airlines deal was found by Cheapflights users on 3/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:15 am
MSO
-
LHR
1 stop19h 55m
United Airlines
Tue 9/222:05 pm
LHR
-
MSO
2 stops30h 22m
United Airlines
Deal found 3/9$736
This United Airlines deal was found by Cheapflights users on 3/8. 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 11/135:32 pm
MSO
-
LHR
2 stops55h 58m
United Airlines
Tue 11/1711:10 am
LHR
-
MSO
2 stops41h 16m
United Airlines
Deal found 3/8$755
This United Airlines deal was found by Cheapflights users on 3/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:15 am
MSO
-
LHR
2 stops30h 25m
United Airlines
Fri 8/211:05 pm
LHR
-
MSO
1 stop16h 25m
United Airlines
Deal found 3/9$756
This United Airlines deal was found by Cheapflights users on 3/8. 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 11/132:25 pm
GTF
-
LHR
1 stop12h 15m
United Airlines
Tue 11/176:35 am
LHR
-
GTF
2 stops37h 54m
United Airlines
Deal found 3/8$778
This United Airlines deal was found by Cheapflights users on 3/8. 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 11/1810:00 am
BTM
-
LHR
1 stop16h 40m
United Airlines
Sun 11/227:30 am
LHR
-
BTM
2 stops21h 57m
United Airlines
Deal found 3/8$784
This United Airlines deal was found by Cheapflights users on 3/8. 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 4/155:15 pm
MSO
-
LHR
1 stop12h 20m
United Airlines
Wed 4/226:55 am
LHR
-
MSO
2 stops21h 35m
United Airlines
Deal found 3/8$788
This United Airlines deal was found by Cheapflights users on 3/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/165:32 pm
MSO
-
LHR
1 stop11h 48m
United Airlines
Wed 8/269:30 am
LHR
-
MSO
2 stops20h 00m
United Airlines
Deal found 3/9$789
This United Airlines deal was found by Cheapflights users on 3/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/155:32 pm
MSO
-
LHR
2 stops20h 08m
United Airlines
Wed 8/267:30 am
LHR
-
MSO
2 stops22h 00m
United Airlines
Deal found 3/9$793
This United Airlines deal was found by Cheapflights users on 3/8. 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 4/172:30 pm
GTF
-
LHR
2 stops59h 05m
United Airlines
Fri 5/87:25 am
LHR
-
GTF
2 stops37h 09m
United Airlines
Deal found 3/8$797
This United Airlines deal was found by Cheapflights users on 3/8. 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 4/276:15 am
GTF
-
LHR
1 stop20h 25m
United Airlines
Fri 5/157:30 am
LHR
-
GTF
2 stops20h 48m
United Airlines
Deal found 3/8$799
This United Airlines deal was found by Cheapflights users on 3/8. 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 4/142:30 pm
GTF
-
LHR
1 stop12h 10m
United Airlines
Thu 5/75:40 pm
LHR
-
GTF
2 stops34h 38m
United Airlines
Deal found 3/8$801
This American Airlines deal was found by Cheapflights users on 3/13. 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 8/191:25 pm
FCA
-
LHR
1 stop12h 40m
American Airlines
Wed 8/264:25 pm
LHR
-
FCA
1 stop25h 35m
American Airlines
Deal found 3/13$805

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 March 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$736
(United Airlines)

One-way from

$285
(United Airlines)

Popular in

June

Cheapest in

October

Average price

$1,079
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.
Search Deals
From Montana to London Heathrow
Search Deals
One-way flight from Montana to London Heathrow
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($129 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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 March 13, 2026.
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

Cheapest round-trip

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Tue 9/8

7:15 am-10:10 am

1 stop19h 55m

London Heathrow

Tue 9/22

2:05 pm-1:27 pm

2 stops30h 22m

$736
Quickest round-trip

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Thu 9/3

5:32 pm-12:20 pm

1 stop11h 48m

London Heathrow

Tue 9/15

2:50 pm-9:26 pm

1 stop13h 36m

$852

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Sat 5/9

5:08 pm-9:40 am

1 stop33h 32m

London Heathrow

Sun 5/17

2:05 pm-9:30 pm

2 stops38h 25m

$852

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sun 5/3

6:15 am-9:40 am

1 stop20h 25m

London Heathrow

Sun 5/10

2:50 pm-9:18 pm

1 stop13h 28m

$866

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Wed 4/29

2:30 pm-9:40 am

1 stop12h 10m

London Heathrow

Sat 5/16

11:25 am-9:18 pm

1 stop16h 53m

$866

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Wed 4/15

2:30 pm-9:40 am

1 stop12h 10m

London Heathrow

Sat 5/9

2:50 pm-9:18 pm

1 stop13h 28m

$866

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Fri 5/1

5:08 pm-6:35 am

2 stops54h 27m

London Heathrow

Tue 5/19

2:50 pm-9:30 pm

1 stop13h 40m

$882

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Tue 9/1

2:25 pm-9:40 am

1 stop12h 15m

London Heathrow

Tue 9/15

6:55 am-10:51 pm

2 stops22h 56m

$884

CodyLondon

COD - LHR

CODLHR

Cody E.E. Faust

Fri 4/17

6:20 am-12:25 pm

1 stop23h 05m

London Heathrow

Tue 4/21

7:30 am-10:45 pm

2 stops22h 15m

$889

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Sat 9/5

5:57 pm-9:40 am

1 stop32h 43m

London Heathrow

Wed 9/16

7:25 am-9:41 am

2 stops33h 16m

$895

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/10

Showing 1-10 of 46 resultsSorted by cheapest first
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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
No data available for this route at this time. Please check back soon.

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 42m. 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.

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
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Orpington
Watford
Northampton
Borehamwood
Broadway
Aylesbury
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne

Browse thousands of different options on Cheapflights for your next trip

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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 March 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$604Average$856FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$645Average$923FlexibilityNo cancel feeOn-time69%

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