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$283+ 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — LON
Aug 5 — Aug 121
Wed 8/5
Wed 8/12
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 July 6, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 7/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/54:24 pm
BZN
-
LHR
2 stops16h 16m
Lufthansa
Tue 10/137:25 am
LHR
-
BZN
2 stops20h 39m
Lufthansa
Deal found 7/2$868
This United Airlines deal was found by Cheapflights users on 7/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/132:37 pm
BZN
-
LHR
1 stop14h 48m
United Airlines
Wed 10/286:35 am
LHR
-
BZN
2 stops20h 32m
United Airlines
Deal found 7/3$874
This Delta deal was found by Cheapflights users on 7/4. 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 10/65:45 am
BIL
-
LHR
1 stop22h 15m
Delta
Wed 10/146:30 am
LHR
-
BIL
2 stops20h 37m
Delta
Deal found 7/4$874
This Delta deal was found by Cheapflights users on 7/6. 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 10/51:37 pm
BZN
-
LHR
1 stop16h 28m
Delta
Tue 10/139:55 am
LHR
-
BZN
2 stops19h 42m
Delta
Deal found 7/6$875
This Air France deal was found by Cheapflights users on 7/6. 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.
Mon 11/212:58 pm
BIL
-
LHR
1 stop14h 02m
Multiple Airlines
Fri 11/66:30 am
LHR
-
BIL
2 stops20h 37m
Multiple Airlines
Deal found 7/6$875
This KLM deal was found by Cheapflights users on 7/5. 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.
Mon 10/1212:35 pm
FCA
-
LHR
1 stop14h 25m
KLM
Tue 10/206:30 am
LHR
-
FCA
2 stops15h 11m
KLM
Deal found 7/5$875
This Delta deal was found by Cheapflights users on 7/6. 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 11/165:40 am
MSO
-
LHR
1 stop21h 20m
Delta
Thu 11/198:40 am
LHR
-
MSO
2 stops18h 32m
Delta
Deal found 7/6$875
This KLM deal was found by Cheapflights users on 7/6. 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 10/211:13 pm
GTF
-
LHR
1 stop13h 47m
KLM
Wed 10/285:50 pm
LHR
-
GTF
2 stops29h 48m
KLM
Deal found 7/6$875
This United Airlines deal was found by Cheapflights users on 7/2. 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.
Sun 11/86:30 am
GTF
-
LHR
1 stop20h 10m
United Airlines
Thu 11/126:35 am
LHR
-
GTF
2 stops22h 12m
United Airlines
Deal found 7/2$876
This eDestinos deal was found by Cheapflights users on 7/5. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/222:30 pm
BZN
-
LHR
1 stop13h 50m
Virgin Atlantic
Mon 10/2612:20 pm
LHR
-
BZN
1 stop16h 17m
Virgin Atlantic
Deal found 7/5$877
This Delta deal was found by Cheapflights users on 7/6. 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 10/66:00 am
BZN
-
LHR
2 stops17h 25m
Delta
Wed 10/146:30 am
LHR
-
BZN
2 stops18h 28m
Delta
Deal found 7/6$879
This KLM deal was found by Cheapflights users on 7/4. 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 10/1412:35 pm
FCA
-
LHR
2 stops17h 30m
KLM
Wed 10/216:30 am
LHR
-
FCA
2 stops15h 11m
KLM
Deal found 7/4$879

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 July 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$868
(Cheapflightsfares)

One-way from

$283
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$1,511
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. 23% potential increase in price ($310 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 July 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 July 6, 2026.
Use the filters below to find and compare flights from Montana to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BillingsLondon

BIL - LHR

BILLHR

Billings Logan Intl

Tue 10/6

5:45 am-11:00 am

1 stop22h 15m

London Heathrow

Wed 10/14

6:30 am-8:07 pm

2 stops20h 37m

$874

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Wed 10/21

1:13 pm-10:00 am

1 stop13h 47m

London Heathrow

Wed 10/28

5:50 pm-5:38 pm

2 stops29h 48m

$875

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Mon 10/5

1:37 pm-1:05 pm

1 stop16h 28m

London Heathrow

Tue 10/13

9:55 am-10:37 pm

2 stops19h 42m

$875

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sun 11/8

6:30 am-9:40 am

1 stop20h 10m

London Heathrow

Thu 11/12

6:35 am-9:47 pm

2 stops22h 12m

$876

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Sat 10/24

4:22 pm-8:25 am

1 stop33h 03m

London Heathrow

Wed 10/28

6:35 am-9:07 pm

2 stops20h 32m

$879

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Mon 11/16

12:50 pm-11:40 am

2 stops15h 50m

London Heathrow

Thu 11/19

6:30 am-8:12 pm

2 stops20h 42m

$879

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Tue 10/6

6:38 pm-8:10 pm

2 stops18h 32m

London Heathrow

Wed 10/14

6:30 am-5:58 pm

2 stops18h 28m

$879

HelenaLondon

HLN - LHR

HLNLHR

Helena

Wed 12/2

12:50 pm-10:00 am

1 stop14h 10m

London Heathrow

Wed 12/9

6:20 am-10:41 pm

2 stops23h 21m

$882

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Tue 11/3

2:05 pm-12:20 pm

1 stop15h 15m

London Heathrow

Thu 11/5

2:45 pm-11:59 pm

1 stop16h 14m

$884
Quickest round-trip

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 10/14

7:45 pm-3:05 pm

1 stop12h 20m

London Heathrow

Wed 10/21

5:00 pm-10:59 pm

1 stop12h 59m

$885

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 57 resultsSorted by cheapest first
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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, March is the cheapest month in which you can book a flight from Montana to London (average of $554). Flying from Montana to London in June is currently the most expensive (average of $1,201). 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 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 14h 25m. Delta provides one of the quickest options available for as low as $875. 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, Missoula Johnson-Bell Field - London Heathrow or Bozeman Gallatin Field - London City 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, March is the cheapest month in which you can book a flight from Montana to London (average of $554). Flying from Montana to London in June is currently the most expensive (average of $1,201). 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
Ilford
Dorking
Hounslow
Winchester
Croydon
Gatwick
Southend-on-Sea
Wembley
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough
Stansted

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 July 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$556Average$1,017FlexibilityNo cancel feeOn-time69%
DeltaCheapest$604Average$1,019FlexibilityNo cancel feeOn-timeN/A

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