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$289+ Cheap flights from Montana to London (LON)

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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — LON
Mar 13 — Mar 201
Fri 3/13
Fri 3/20
1 adult, Economy
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Cheap flight deals from Montana to London

Cheapest flights from Montana to London
Explore the most affordable flight options available from Montana to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 11, 2026.

This Billigflug deal was found by Cheapflights users on 2/9. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/152:49 pm
FCA
-
LHR
1 stop15h 16m
Virgin Atlantic
Thu 4/306:15 am
LHR
-
FCA
2 stops24h 12m
Virgin Atlantic
Deal found 2/9$629
This Cheapflightsfares deal was found by Cheapflights users on 2/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/142:40 pm
BZN
-
LHR
2 stops20h 00m
Lufthansa
Tue 4/286:55 am
LHR
-
BZN
2 stops21h 37m
Lufthansa
Deal found 2/10$636
This Delta deal was found by Cheapflights users on 2/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/292:53 pm
BZN
-
LHR
1 stop13h 27m
Delta
Thu 5/78:40 am
LHR
-
BZN
2 stops21h 29m
Delta
Deal found 2/9$648
This Delta deal was found by Cheapflights users on 2/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/22:53 pm
BZN
-
LHR
1 stop32h 52m
Delta
Wed 5/138:40 am
LHR
-
BZN
2 stops21h 29m
Delta
Deal found 2/9$653
This Delta deal was found by Cheapflights users on 2/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/293:15 pm
BZN
-
LHR
1 stop13h 55m
Delta
Fri 5/88:55 am
LHR
-
BZN
2 stops21h 39m
Delta
Deal found 2/9$655
This Delta deal was found by Cheapflights users on 2/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/295:59 am
BZN
-
LHR
2 stops20h 16m
Delta
Tue 5/1211:30 am
LHR
-
BZN
2 stops18h 39m
Delta
Deal found 2/9$659
This Delta deal was found by Cheapflights users on 2/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/158:32 am
MSO
-
LHR
1 stop16h 33m
Delta
Tue 3/2410:45 am
LHR
-
MSO
1 stop19h 39m
Delta
Deal found 2/9$661
This United Airlines deal was found by Cheapflights users on 2/9. 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 4/144:19 pm
BZN
-
LHR
1 stop13h 01m
United Airlines
Tue 4/2812:05 pm
LHR
-
BZN
2 stops32h 29m
United Airlines
Deal found 2/9$662
This Delta deal was found by Cheapflights users on 2/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/171:07 pm
MSO
-
LHR
2 stops16h 48m
Delta
Mon 3/234:35 pm
LHR
-
MSO
2 stops25h 41m
Delta
Deal found 2/9$665
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Mon 4/136:15 am
HLN
-
LHR
1 stop20h 25m
United Airlines
Mon 4/209:30 am
LHR
-
HLN
2 stops43h 03m
United Airlines
Deal found 2/9$680
This United Airlines deal was found by Cheapflights users on 2/10. 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 3/172:35 pm
MSO
-
LHR
1 stop13h 05m
United Airlines
Tue 3/312:10 pm
LHR
-
MSO
2 stops32h 56m
United Airlines
Deal found 2/10$683
This United Airlines deal was found by Cheapflights users on 2/8. 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 3/252:35 pm
MSO
-
LHR
1 stop13h 05m
United Airlines
Wed 4/16:55 am
LHR
-
MSO
2 stops21h 40m
United Airlines
Deal found 2/8$685

Find flight deals from Montana to London

Keep the following information in mind while searching for Montana to London flight deals. Data was last updated February 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$629
(Billigflug)

One-way from

$289
(United Airlines)

Popular in

June

Cheapest in

October

Average price

$923
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 (LON)
Search Deals
One-way flight from Montana to London (LON)
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($158 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montana to London 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 February 11, 2026.
Use the filters below to find and compare flights from Montana to London that are best for you.

Fly from

Montana

Fly to

London

Route

Depart

Return

Price

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 4/15

2:49 pm-1:05 pm

1 stop15h 16m

London Heathrow

Thu 4/30

6:15 am-11:27 pm

2 stops24h 12m

$629

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Wed 4/29

1:45 pm-1:05 pm

1 stop16h 20m

London Heathrow

Wed 5/13

9:55 am-11:09 pm

2 stops20h 14m

$648

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Wed 4/29

2:53 pm-11:20 am

1 stop13h 27m

London Heathrow

Thu 5/7

8:40 am-11:09 pm

2 stops21h 29m

$648

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Mon 5/4

5:59 am-11:20 am

2 stops22h 21m

London Heathrow

Wed 5/13

11:45 am-11:09 pm

2 stops18h 24m

$652

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Tue 5/5

5:59 am-9:15 am

2 stops20h 16m

London Heathrow

Wed 5/13

11:45 am-11:09 pm

2 stops18h 24m

$652

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Sun 5/3

2:53 pm-1:15 pm

1 stop15h 22m

London Heathrow

Tue 5/12

11:30 am-11:09 pm

2 stops18h 39m

$655

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Wed 4/29

3:15 pm-3:35 pm

1 stop17h 20m

London Heathrow

Tue 5/12

11:30 am-11:09 pm

2 stops18h 39m

$655

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Mon 5/4

5:59 am-10:20 am

2 stops21h 21m

London Heathrow

Tue 5/12

11:30 am-11:09 pm

2 stops18h 39m

$659

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Sat 5/2

2:53 pm-6:45 am

1 stop32h 52m

London Heathrow

Tue 5/12

11:30 am-11:09 pm

2 stops18h 39m

$660

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Mon 3/16

5:20 am-10:30 am

2 stops23h 10m

London Heathrow

Tue 3/24

4:35 pm-12:16 pm

2 stops25h 41m

$665

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/8

Showing 1-10 of 60 results
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Best time to book a flight from Montana to London

Have a flexible travel schedule? Discover the best time to fly to London 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

How much does it cost to fly round-trip from Montana to London?

Related info for your journey

Find useful and relevant information for your journey from Montana to London. 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?

    A quick flight from Montana to London can take about 15h 16m. Virgin Atlantic provides one of the quickest options available for as low as $629. There are 4512 mi between Montana and London. This flight may include one or multiple stops.

  • What are the most popular routes from Montana to London?

    Most travelers choose Bozeman Gallatin Field - London Heathrow, Kalispell Glacier Park - London Heathrow or Missoula Johnson-Bell Field - London Heathrow when deciding on the best route from Montana to London.

  • Can I find deals for flights from Montana to London that include hotel bookings?

    Yes. In addition to deals on Montana to London flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Montana to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montana to London.

  • Can I find deals for business class flights from Montana to London?

    Yes. Cheapflights offers flight deals from Montana to London 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?

Book flights to London if you plan to visit one of these locations
Ilford
Croydon
Hounslow
Southend-on-Sea
Harrow
Eastleigh
Gatwick
Dartford
Dover
Winchester
Orpington
Watford
Hayes
Borehamwood
Aylesbury
Chipping Norton
Horley
Kingston upon Thames
Eastbourne
Sutton

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Alternative routes for Montana to London

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Montana to London

Discover the top 2 airlines that operate flights from Montana to London. 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 February 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$604Average$856FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$645Average$881FlexibilityNo cancel feeOn-time69%

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