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Heathrow

$334+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — LHR
May 29 — Jun 51
Fri 5/29
Fri 6/5
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 April 29, 2026.

This United Airlines deal was found by Cheapflights users on 4/24. 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.
Mon 11/165:51 pm
BIL
-
LHR
2 stops30h 39m
United Airlines
Thu 11/196:35 am
LHR
-
BIL
2 stops21h 16m
United Airlines
Deal found 4/24$815
This United Airlines deal was found by Cheapflights users on 4/27. 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 11/162:30 pm
HLN
-
LHR
2 stops42h 20m
United Airlines
Thu 11/197:30 am
LHR
-
HLN
2 stops20h 29m
United Airlines
Deal found 4/27$835
This United Airlines deal was found by Cheapflights users on 4/27. 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 11/152:25 pm
GTF
-
LHR
2 stops59h 20m
United Airlines
Thu 11/198:00 am
LHR
-
GTF
2 stops21h 30m
United Airlines
Deal found 4/27$868
This American Airlines deal was found by Cheapflights users on 4/24. 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.
Sun 8/94:54 pm
BZN
-
LHR
1 stop12h 21m
American Airlines
Thu 8/208:15 am
LHR
-
BZN
2 stops19h 22m
American Airlines
Deal found 4/24$870
This Air France deal was found by Cheapflights users on 4/27. 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.
Wed 9/23:40 pm
BZN
-
LHR
1 stop16h 55m
Multiple Airlines
Wed 9/1611:45 am
LHR
-
BZN
2 stops17h 39m
Multiple Airlines
Deal found 4/27$878
This Delta deal was found by Cheapflights users on 4/29. 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.
Wed 8/193:00 pm
FCA
-
LHR
1 stop15h 05m
Delta
Wed 8/266:30 am
LHR
-
FCA
2 stops23h 32m
Delta
Deal found 4/29$878
This Virgin Atlantic deal was found by Cheapflights users on 4/27. 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.
Wed 9/211:27 am
BZN
-
LHR
2 stops16h 13m
Virgin Atlantic
Wed 9/1611:45 am
LHR
-
BZN
2 stops17h 39m
Virgin Atlantic
Deal found 4/27$882
This Delta deal was found by Cheapflights users on 4/27. 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 9/25:45 am
BIL
-
LHR
2 stops21h 35m
Delta
Wed 9/166:30 am
LHR
-
BIL
2 stops20h 07m
Delta
Deal found 4/27$882
This Delta deal was found by Cheapflights users on 4/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:10 pm
MSO
-
LHR
2 stops19h 00m
Delta
Tue 9/226:30 am
LHR
-
MSO
2 stops17h 53m
Delta
Deal found 4/26$882
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:25 pm
BIL
-
LHR
2 stops28h 55m
Delta
Tue 9/156:30 am
LHR
-
BIL
2 stops22h 57m
Delta
Deal found 4/28$883
This United Airlines deal was found by Cheapflights users on 4/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:25 am
BZN
-
LHR
2 stops27h 55m
United Airlines
Mon 8/313:30 pm
LHR
-
BZN
2 stops36h 37m
United Airlines
Deal found 4/28$886
This KLM deal was found by Cheapflights users on 4/26. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:10 pm
FCA
-
LHR
2 stops16h 25m
KLM
Mon 10/268:25 pm
LHR
-
FCA
2 stops27h 20m
KLM
Deal found 4/26$887

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 April 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$870
(American Airlines)

One-way from

$334
(American Airlines)

Popular in

July

Cheapest in

November

Average price

$977
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. 23% potential increase in price ($299 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($50 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 29, 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

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 10/21

11:59 am-10:00 am

1 stop15h 01m

London Heathrow

Mon 10/26

8:25 pm-5:45 pm

2 stops27h 20m

$878

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 8/19

3:00 pm-1:05 pm

1 stop15h 05m

London Heathrow

Wed 8/26

6:30 am-11:02 pm

2 stops23h 32m

$878

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Wed 9/2

5:45 am-10:20 am

2 stops21h 35m

London Heathrow

Wed 9/16

6:30 am-7:37 pm

2 stops20h 07m

$882

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Tue 9/15

6:10 pm-8:10 pm

2 stops19h 00m

London Heathrow

Tue 9/22

6:30 am-5:23 pm

2 stops17h 53m

$882

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Tue 9/15

10:30 am-12:25 pm

1 stop18h 55m

London Heathrow

Tue 9/22

9:30 am-1:27 pm

2 stops34h 57m

$888

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Sun 9/13

3:40 pm-3:35 pm

1 stop16h 55m

London Heathrow

Tue 9/29

10:55 am-5:52 pm

1 stop13h 57m

$906

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 8/19

3:00 pm-1:05 pm

1 stop15h 05m

London Heathrow

Wed 8/26

10:55 am-11:02 pm

1 stop19h 07m

$907

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Wed 9/2

11:35 am-10:20 am

2 stops15h 45m

London Heathrow

Wed 9/16

10:55 am-5:48 pm

1 stop13h 53m

$911

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Sun 9/6

6:15 am-6:55 am

2 stops17h 40m

London Heathrow

Thu 9/10

10:25 am-9:26 pm

2 stops18h 01m

$914

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Thu 10/22

1:29 pm-1:05 pm

1 stop16h 36m

London Heathrow

Wed 10/28

11:45 am-12:29 pm

2 stops30h 44m

$933

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

Showing 1-10 of 60 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

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 01m. 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
Winchester
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Northampton
Borehamwood
Broadway
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough

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 April 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$604Average$905FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$645Average$973FlexibilityNo cancel feeOn-time69%

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