Heathrow

$629+ Cheap flights from Montana to Heathrow (LHR)

BZN — LHR
Dec 11 — Dec 181
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Cheap flight deals from Montana to Heathrow

Cheapest flights from Montana to Heathrow

Tue 12/87:20 am -
2 stops32h 35m
Tue 12/157:40 am -
2 stops21h 05m
Deal found 11/8$946
Mon 12/712:38 pm -
2 stops15h 12m
Mon 12/144:40 pm -
2 stops36h 05m
Deal found 11/9$960
Tue 12/82:41 pm -
1 stop11h 59m
Tue 12/1511:10 am -
2 stops41h 37m
Deal found 11/10$962
Tue 12/812:38 pm -
3 stops35h 32m
Tue 12/157:30 am -
2 stops21h 15m
Deal found 11/8$963
Tue 12/82:03 pm -
1 stop15h 07m
Tue 12/159:25 am -
1 stop13h 35m
Deal found 11/10$978
Tue 12/81:50 pm -
1 stop15h 20m
Tue 12/159:25 am -
1 stop21h 08m
Deal found 11/8$979
Tue 11/247:00 am -
2 stops16h 30m
Fri 1/158:30 am -
2 stops19h 45m
Deal found 11/10$985
Wed 11/256:34 am -
1 stop17h 31m
Thu 12/106:30 am -
2 stops20h 18m
Deal found 11/10$993
Wed 11/256:34 am -
2 stops16h 51m
Fri 12/118:40 am -
2 stops42h 08m
Deal found 11/10$994
Mon 11/234:00 pm -
1 stop34h 40m
Fri 1/156:35 am -
2 stops21h 40m
Deal found 11/10$1,000
Wed 11/256:34 am -
1 stop17h 31m
Tue 1/1211:45 am -
2 stops37h 02m
Deal found 11/10$1,002
Tue 11/245:35 am -
2 stops23h 00m
Tue 1/1211:45 am -
2 stops37h 02m
Deal found 11/10$1,006

Find flight deals from Montana to Heathrow

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$764
(United Airlines)

One-way from

$629
(United Airlines)

Popular in

February

Cheapest in

April

Average price

$1,000
Provider with most accurate pricing for Bozeman Gallatin Field-London (LON) flight deals.
Provider most trusted by Cheapflights users for Bozeman Gallatin Field-London (LON) flights.
From Montana to London Heathrow
One-way flight from Montana to London Heathrow
Highest demand for flights based on searches. 12% potential increase in price ($161 potential increase over avg. RT price).
Cheapest flight prices on average. 6% potential price decrease ($66 potential savings vs. average RT price).
Average for round-trip flights in November 2026

Cheapflights Fare Finder

 
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
Quickest round-trip

BillingsLondon

BIL Billings Logan Intl - LHR London Heathrow

BILLHR

Billings Logan Intl

Wed 11/25

2:42 pm-9:40 am

1 stop11h 58m

London Heathrow

Wed 12/31

12:00 am-4:00 pm

Nonstop0h 00m

$629

BillingsLondon

BIL Billings Logan Intl - LHR London Heathrow

BILLHR

Billings Logan Intl

Wed 11/25

7:00 am-6:30 am

3 stops16h 30m

London Heathrow

Wed 12/31

12:00 am-4:00 pm

Nonstop0h 00m

$637

BillingsLondon

BIL Billings Logan Intl - LHR London Heathrow

BILLHR

Billings Logan Intl

Tue 3/2

5:53 pm-7:40 am

2 stops30h 47m

London Heathrow

Fri 3/5

7:30 am-8:51 pm

2 stops20h 21m

$774

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Tue 3/2

6:30 am-6:40 am

2 stops17h 10m

London Heathrow

Thu 3/4

6:35 am-9:34 pm

2 stops21h 59m

$779

HelenaLondon

HLN Helena - LHR London Heathrow

HLNLHR

Helena

Tue 3/2

2:36 pm-9:40 am

1 stop12h 04m

London Heathrow

Thu 3/4

7:30 am-8:59 pm

2 stops20h 29m

$836

ButteLondon

BTM Butte Silver Bow Co - LHR London Heathrow

BTMLHR

Butte Silver Bow Co

Tue 3/2

9:30 am-7:10 am

2 stops38h 40m

London Heathrow

Fri 3/5

6:35 am-6:38 pm

2 stops19h 03m

$843

BozemanLondon

BZN Bozeman Gallatin Field - LHR London Heathrow

BZNLHR

Bozeman Gallatin Field

Sun 2/14

2:44 pm-9:40 am

1 stop11h 56m

London Heathrow

Thu 2/18

6:50 am-6:49 pm

2 stops18h 59m

$888

MissoulaLondon

MSO Missoula Johnson-Bell Field - LHR London Heathrow

MSOLHR

Missoula Johnson-Bell Field

Tue 3/9

12:50 pm-10:00 am

1 stop14h 10m

London Heathrow

Tue 3/16

5:50 pm-5:27 pm

2 stops29h 37m

$889

KalispellLondon

FCA Kalispell Glacier Park - LHR London Heathrow

FCALHR

Kalispell Glacier Park

Wed 3/31

1:25 pm-10:00 am

1 stop13h 35m

London Heathrow

Tue 4/27

7:15 pm-5:45 pm

2 stops29h 30m

$893

BillingsLondon

BIL Billings Logan Intl - LHR London Heathrow

BILLHR

Billings Logan Intl

Sat 2/13

5:53 pm-7:40 am

2 stops30h 47m

London Heathrow

Tue 2/23

6:35 am-9:28 pm

2 stops21h 53m

$895

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

Showing 1-10 of 37 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

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, March is the cheapest month in which you can book a flight from Montana to London Heathrow Airport (average of $825). Flying from Montana to London Heathrow Airport in June is currently the most expensive (average of $1,719). 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

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

    Departing from Montana to London Heathrow Airport will take you 13h 35m. 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?

  • 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, March is the cheapest month in which you can book a flight from Montana to London Heathrow Airport (average of $825). Flying from Montana to London Heathrow Airport in June is currently the most expensive (average of $1,719). 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
Dorking
Gatwick
Hounslow
Wembley
Harrow
Southend-on-Sea
Basingstoke
Northampton
Dartford
Winchester
Croydon
Kingston upon Thames
Chipping Norton
Slough
Eastbourne
Watford
Stansted
Sutton
Luton

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Montana to Heathrow

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$556Average$1,138FlexibilityNo cancel feeOn-time69%
DeltaCheapest$604Average$1,682FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$897Average$1,112FlexibilityNo cancel feeOn-time75%

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