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$378+ 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 12/31. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — LON
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Find 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 November 3, 2025.

This KLM deal was found by Cheapflights users on 11/2. 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.
Tue 12/211:45 amBZN - LHR
1 stop15h 15mKLM
Tue 12/96:30 amLHR - BZN
2 stops22h 56mKLM
Deal found 11/2$591
This Air France deal was found by Cheapflights users on 11/2. 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 11/265:25 amMSO - LHR
1 stop21h 35mMultiple Airlines
Wed 12/38:40 amLHR - MSO
2 stops20h 13mMultiple Airlines
Deal found 11/2$591
This Delta deal was found by Cheapflights users on 11/2. 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 11/306:04 amBZN - LHR
1 stop18h 01mDelta
Sun 12/78:40 amLHR - BZN
2 stops21h 57mDelta
Deal found 11/2$594
This Air France deal was found by Cheapflights users on 11/2. 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 11/265:25 amMSO - LHR
1 stop21h 35mAir France
Wed 12/311:05 amLHR - MSO
1 stop17h 48mAir France
Deal found 11/2$597
This Delta deal was found by Cheapflights users on 10/31. 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.
Mon 12/111:40 amBZN - LHR
1 stop15h 20mDelta
Fri 12/1212:20 pmLHR - BZN
1 stop17h 06mDelta
Deal found 10/31$598
This Air France deal was found by Cheapflights users on 11/2. 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.
Sun 11/306:04 amBZN - LHR
1 stop18h 01mAir France
Sun 12/710:45 amLHR - BZN
1 stop14h 08mAir France
Deal found 11/2$622
This Delta deal was found by Cheapflights users on 10/31. 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 12/311:45 amBZN - LHR
1 stop15h 15mDelta
Sun 12/1410:45 amLHR - BZN
1 stop14h 08mDelta
Deal found 10/31$623
This United Airlines deal was found by Cheapflights users on 11/2. 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 12/22:42 pmBZN - LHR
1 stop11h 58mUnited Airlines
Tue 12/99:30 amLHR - BZN
2 stops19h 09mUnited Airlines
Deal found 11/2$629
This Delta deal was found by Cheapflights users on 11/3. 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 11/266:16 pmMSO - LHR
2 stops18h 54mDelta
Wed 12/38:40 amLHR - MSO
2 stops20h 13mDelta
Deal found 11/3$646
This Delta deal was found by Cheapflights users on 10/31. 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.
Fri 12/53:00 pmBZN - LHR
1 stop12h 30mDelta
Mon 12/812:20 pmLHR - BZN
1 stop17h 06mDelta
Deal found 10/31$648
This FlightHub deal was found by Cheapflights users on 11/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/210:49 amBZN - LHR
2 stops24h 56mLufthansa
Tue 12/97:40 amLHR - BZN
2 stops20h 59mLufthansa
Deal found 11/2$651
This United Airlines deal was found by Cheapflights users on 11/2. 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 12/212:50 pmBZN - LCY
2 stops17h 05mMultiple Airlines
Tue 12/99:50 amLCY - BZN
3 stops31h 11mMultiple Airlines
Deal found 11/2$667

Cheap flight deals from Montana to London

Keep the following information in mind while searching for Montana to London flight deals. Data was last updated November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$591
(KLM)

One-way from

$378
(JetBlue)

Popular in

December

Cheapest in

October

Average price

$859
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. 8% potential increase in price ($85 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($48 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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 November 3, 2025.
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

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Wed 11/26

5:25 am-10:00 am

1 stop21h 35m

London Heathrow

Wed 12/3

8:40 am-9:53 pm

2 stops20h 13m

$591

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Tue 12/2

11:45 am-10:00 am

1 stop15h 15m

London Heathrow

Tue 12/9

10:45 am-5:53 pm

1 stop14h 08m

$597

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Tue 12/2

11:45 am-10:00 am

1 stop15h 15m

London Heathrow

Fri 12/12

12:20 pm-10:26 pm

1 stop17h 06m

$598

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Tue 12/2

11:45 am-10:00 am

1 stop15h 15m

London Heathrow

Wed 12/10

10:45 am-5:53 pm

1 stop14h 08m

$598

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Tue 1/13

12:40 pm-10:00 am

1 stop14h 20m

London Heathrow

Tue 1/27

6:20 am-8:14 pm

2 stops20h 54m

$598

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Wed 12/3

11:45 am-10:00 am

1 stop15h 15m

London Heathrow

Tue 12/9

12:20 pm-10:26 pm

1 stop17h 06m

$598

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Wed 12/3

3:00 pm-10:30 am

1 stop12h 30m

London Heathrow

Wed 12/10

10:45 am-5:53 pm

1 stop14h 08m

$598

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Tue 1/13

7:55 am-7:05 am

1 stop16h 10m

London Heathrow

Tue 1/27

10:45 am-5:25 pm

1 stop13h 40m

$605

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 1/28

12:15 pm-10:00 am

1 stop14h 45m

London Heathrow

Tue 2/3

10:45 am-10:54 pm

1 stop19h 09m

$605

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Fri 12/5

11:45 am-10:00 am

1 stop15h 15m

London Heathrow

Wed 12/10

10:45 am-5:53 pm

1 stop14h 08m

$623

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Showing 1-10 of 48 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

What is the cheapest month to book a flight from Montana to London?

Currently, August is the cheapest month in which you can book a flight from Montana to London (average of $638). Flying from Montana to London in June is currently the most expensive (average of $1,155). 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.

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 11h 55m. KLM provides one of the quickest options available for as low as $626. There are 4473 mi between Montana and London. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Montana to London one-way?

    To fly one-way, consider booking your trip with JetBlue, which is currently one of the cheapest options available, starting at $378. United Airlines flights start at $399 while deals on Lufthansa start at $459 one-way.

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

    Most travelers choose Bozeman Gallatin Field - London Heathrow, Missoula Johnson-Bell Field - London Heathrow or Kalispell Glacier Park - 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.

  • What is the cheapest month to book a flight from Montana to London?

    Currently, August is the cheapest month in which you can book a flight from Montana to London (average of $638). Flying from Montana to London in June is currently the most expensive (average of $1,155). 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?

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

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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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$645Average$903FlexibilityNo cancel feeOn-time69%
DeltaCheapest$677Average$905FlexibilityNo cancel feeOn-timeN/A

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