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$313+ 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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — LHR
feb 19 — feb 261
gio 2/19
gio 2/26
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 gennaio 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$608
(American Airlines)

One-way from

$313
(JetBlue)

Popular in

June

Cheapest in

October

Average price

$798
Provider with most accurate pricing for Bozeman Gallatin Field-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Bozeman Gallatin Field-London (LON) flights.
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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. 17% potential increase in price ($179 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 gennaio 20, 2026.

This American Airlines deal was found by Cheapflights users on 1/18. 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.
lun 8/171:22 pm
BZN
-
LHR
1 stop14h 43m
American Airlines
mar 8/258:15 am
LHR
-
BZN
2 stops18h 02m
American Airlines
Deal found 1/18$594
This American Airlines deal was found by Cheapflights users on 1/18. 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.
mer 3/46:15 am
MSO
-
LHR
1 stop22h 25m
American Airlines
mer 3/118:20 am
LHR
-
MSO
1 stop19h 36m
American Airlines
Deal found 1/18$608
This American Airlines deal was found by Cheapflights users on 1/19. 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.
mer 2/181:36 pm
BZN
-
LHR
1 stop13h 49m
American Airlines
mer 2/254:30 pm
LHR
-
BZN
1 stop27h 27m
American Airlines
Deal found 1/19$613
This Finnair deal was found by Cheapflights users on 1/17. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer 8/191:58 pm
BIL
-
LHR
1 stop13h 57m
Multiple Airlines
mer 9/212:55 pm
LHR
-
BIL
1 stop15h 35m
Multiple Airlines
Deal found 1/17$624
This American Airlines deal was found by Cheapflights users on 1/20. 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.
mar 2/31:42 pm
BZN
-
LHR
1 stop11h 33m
American Airlines
dom 2/89:50 am
LHR
-
BZN
2 stops20h 07m
American Airlines
Deal found 1/20$627
This United Airlines deal was found by Cheapflights users on 1/18. 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.
mer 3/410:50 am
BZN
-
LHR
1 stop15h 50m
United Airlines
mer 3/116:50 am
LHR
-
BZN
2 stops21h 22m
United Airlines
Deal found 1/18$629
This United Airlines deal was found by Cheapflights users on 1/18. 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.
mer 3/42:41 pm
FCA
-
LHR
1 stop11h 59m
United Airlines
mer 3/116:35 am
LHR
-
FCA
2 stops21h 22m
United Airlines
Deal found 1/18$630
This United Airlines deal was found by Cheapflights users on 1/19. 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.
ven 2/202:34 pm
MSO
-
LHR
1 stop12h 06m
United Airlines
gio 2/2611:10 am
LHR
-
MSO
2 stops33h 22m
United Airlines
Deal found 1/19$630
This United Airlines deal was found by Cheapflights users on 1/19. 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.
gio 3/52:30 pm
GTF
-
LHR
1 stop12h 10m
United Airlines
gio 3/126:35 am
LHR
-
GTF
2 stops20h 36m
United Airlines
Deal found 1/19$630
This United Airlines deal was found by Cheapflights users on 1/19. 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.
gio 3/56:15 am
HLN
-
LHR
1 stop20h 25m
United Airlines
gio 3/126:35 am
LHR
-
HLN
2 stops37h 03m
United Airlines
Deal found 1/19$630
This KLM deal was found by Cheapflights users on 1/19. 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.
mer 2/1812:55 pm
BZN
-
LHR
1 stop14h 05m
KLM
mer 2/256:30 am
LHR
-
BZN
2 stops22h 55m
KLM
Deal found 1/19$631
This Delta deal was found by Cheapflights users on 1/19. 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.
ven 2/205:15 am
MSO
-
LHR
1 stop21h 45m
Delta
lun 3/26:30 am
LHR
-
MSO
2 stops20h 31m
Delta
Deal found 1/19$631

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 gennaio 20, 2026.
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

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

mer 3/4

6:15 am-11:40 am

1 stop22h 25m

London Heathrow

mer 3/11

8:20 am-9:56 pm

1 stop19h 36m

$608

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

mer 3/4

1:47 pm-11:40 am

1 stop14h 53m

London Heathrow

mer 3/11

12:35 pm-12:59 pm

1 stop30h 24m

$613

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

mar 2/3

1:42 pm-8:15 am

1 stop11h 33m

London Heathrow

dom 2/8

9:50 am-10:57 pm

2 stops20h 07m

$627

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

mer 3/4

10:50 am-9:40 am

1 stop15h 50m

London Heathrow

mer 3/11

6:50 am-10:12 pm

2 stops21h 22m

$629

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

mer 3/4

2:41 pm-9:40 am

1 stop11h 59m

London Heathrow

mer 3/11

6:35 am-9:57 pm

2 stops21h 22m

$630

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

gio 3/5

2:30 pm-9:40 am

1 stop12h 10m

London Heathrow

gio 3/12

6:35 am-9:11 pm

2 stops20h 36m

$630

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

gio 2/26

7:30 am-7:05 am

1 stop16h 35m

London Heathrow

lun 3/2

8:40 am-8:01 pm

2 stops18h 21m

$631

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

lun 2/23

7:30 am-7:05 am

1 stop16h 35m

London Heathrow

lun 3/2

8:25 pm-5:23 pm

2 stops27h 58m

$631

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

mar 4/14

2:40 pm-4:40 pm

2 stops19h 00m

London Heathrow

mar 4/28

6:55 am-9:32 pm

2 stops21h 37m

$633

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

mer 3/4

6:15 am-7:10 am

2 stops17h 55m

London Heathrow

mer 3/11

6:35 am-1:33 pm

2 stops36h 58m

$633

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/18

Showing 1-10 of 44 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.

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 50m. 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, 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 $1,115). 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
Croydon
Eastleigh
Gatwick
Dartford
Dover
Winchester
Orpington
Watford
Northampton
Hayes
Borehamwood
Broadway
Aylesbury
Chipping Norton
Horley
Kingston upon Thames

Browse thousands of different options on Cheapflights for your next trip

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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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Los Angeles to Gatwick flights
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Boston to Stansted flights
Baltimore to Gatwick flights
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Dallas/Fort Worth to Gatwick flights
O'Hare Intl to London City flights
Los Angeles to London City flights
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O'Hare Intl to Stansted flights
San Francisco to Gatwick flights
Los Angeles to Stansted flights
Seattle to Gatwick flights
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Austin to Heathrow flights

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 gennaio 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$604Average$856FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$645Average$879FlexibilityNo cancel feeOn-time69%
Virgin AtlanticCheapest$707Average$1,046FlexibilityNo cancel feeOn-time72%

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