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$491+ Cheap flights from Montana to the United Kingdom

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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — LHR
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Cheap flight deals from Montana to United Kingdom

Keep the following information in mind while searching for Montana to United Kingdom flight deals. Data was last updated October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$592
(KLM)

One-way from

$491
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$689
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 United Kingdom
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One-way flight from Montana to United Kingdom
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Highest demand for flights based on searches. 8% potential increase in price ($85 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($48 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Montana to United Kingdom

Cheapest flights from Montana to United Kingdom
Explore the most affordable flight options available from Montana to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This KLM deal was found by Cheapflights users on 10/27. 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 11/182:35 pmBZN - LHR
1 stop14h 05mMultiple Airlines
Tue 11/256:20 amLHR - BZN
2 stops18h 34mMultiple Airlines
Deal found 10/27$592
This KLM deal was found by Cheapflights users on 10/26. 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 11/261:13 pmMSO - LHR
1 stop13h 47mMultiple Airlines
Wed 12/36:20 amLHR - MSO
2 stops18h 16mMultiple Airlines
Deal found 10/26$592
This Delta deal was found by Cheapflights users on 10/27. 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 11/96:10 pmGTF - LHR
1 stop32h 50mDelta
Tue 11/256:20 amLHR - GTF
2 stops23h 10mDelta
Deal found 10/27$592
This Delta deal was found by Cheapflights users on 10/27. 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 11/105:30 amGTF - LHR
1 stop21h 30mDelta
Wed 11/2611:45 amLHR - GTF
2 stops36h 45mDelta
Deal found 10/27$593
This KLM deal was found by Cheapflights users on 10/27. 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 11/187:25 amBZN - LHR
2 stops16h 40mAir France
Tue 11/256:20 amLHR - BZN
2 stops18h 34mAir France
Deal found 10/27$596
This Delta deal was found by Cheapflights users on 10/27. 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 11/115:30 amGTF - LHR
3 stops20h 30mDelta
Tue 11/256:20 amLHR - GTF
2 stops18h 10mDelta
Deal found 10/27$596
This Delta deal was found by Cheapflights users on 10/27. 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 11/116:10 pmGTF - LHR
2 stops29h 50mDelta
Wed 11/2611:45 amLHR - GTF
2 stops36h 45mDelta
Deal found 10/27$597
This KLM deal was found by Cheapflights users on 10/27. 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 11/182:35 pmBZN - LHR
1 stop14h 05mKLM
Tue 11/2512:20 pmLHR - BZN
1 stop17h 09mKLM
Deal found 10/27$599
This KLM deal was found by Cheapflights users on 10/26. 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 11/261:13 pmMSO - LHR
1 stop13h 47mKLM
Wed 12/311:05 amLHR - MSO
1 stop17h 48mKLM
Deal found 10/26$599
This Delta deal was found by Cheapflights users on 10/27. 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 11/175:30 amGTF - LHR
3 stops20h 30mDelta
Wed 11/2612:20 pmLHR - GTF
2 stops36h 10mDelta
Deal found 10/27$604
This Delta deal was found by Cheapflights users on 10/27. 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 11/115:30 amGTF - LHR
3 stops20h 30mDelta
Mon 11/245:35 pmLHR - GTF
2 stops30h 55mDelta
Deal found 10/27$609
This United Airlines deal was found by Cheapflights users on 10/27. 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 11/112:30 pmGTF - LHR
2 stops33h 40mUnited Airlines
Thu 11/276:35 amLHR - GTF
2 stops37h 58mUnited Airlines
Deal found 10/27$619

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montana to United Kingdom 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 October 28, 2025.
Use the filters below to find and compare flights from Montana to the United Kingdom that are best for you.

Fly from

Montana

Fly to

United Kingdom

Route

Depart

Return

Price

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Wed 11/26

1:13 pm-10:00 am

1 stop13h 47m

London Heathrow

Wed 12/3

6:20 am-5:36 pm

2 stops18h 16m

$592

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sun 11/16

6:10 pm-10:00 am

1 stop32h 50m

London Heathrow

Tue 11/25

6:20 am-10:30 pm

2 stops23h 10m

$592

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 11/17

6:10 pm-10:00 am

1 stop32h 50m

London Heathrow

Tue 11/25

6:20 am-5:30 pm

2 stops18h 10m

$592

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Tue 11/11

1:12 pm-10:00 am

1 stop13h 48m

London Heathrow

Wed 11/26

8:25 pm-5:30 pm

2 stops28h 05m

$593

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Wed 11/12

1:12 pm-10:00 am

1 stop13h 48m

London Heathrow

Wed 11/26

5:50 pm-5:30 pm

2 stops30h 40m

$593

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Tue 11/18

7:25 am-7:05 am

2 stops16h 40m

London Heathrow

Tue 11/25

6:20 am-5:54 pm

2 stops18h 34m

$596

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 11/10

5:30 am-12:50 pm

2 stops24h 20m

London Heathrow

Tue 11/25

6:20 am-10:30 pm

2 stops23h 10m

$596

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sat 11/8

6:09 pm-6:20 am

2 stops29h 11m

London Heathrow

Wed 11/26

11:45 am-5:30 pm

2 stops36h 45m

$597

BozemanLondon

BZN - LHR

BZNLHR

Bozeman Gallatin Field

Tue 11/18

2:35 pm-11:40 am

1 stop14h 05m

London Heathrow

Tue 11/25

12:20 pm-10:29 pm

1 stop17h 09m

$599

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Wed 11/26

1:13 pm-10:00 am

1 stop13h 47m

London Heathrow

Wed 12/3

11:05 am-9:53 pm

1 stop17h 48m

$599

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 36 results
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Best time to book a flight from Montana to United Kingdom

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

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

Currently, August is the cheapest month in which you can book a flight from Montana to United Kingdom (average of $636). Flying from Montana to United Kingdom 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.

Related info for your journey

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

    Airlines like Delta, KLM, and Air France fly from Montana to United Kingdom in about 13h 48m. The time it takes to get you to your destination can typically vary by up to 19h 02m. The distance between Montana and United Kingdom is about 4472 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

  • How can I find direct flights from Montana to United Kingdom?

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

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

    Yes. Cheapflights offers flight deals from Montana to United Kingdom 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 United Kingdom?

    Currently, August is the cheapest month in which you can book a flight from Montana to United Kingdom (average of $636). Flying from Montana to United Kingdom 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

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Alternative routes for Montana to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
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Dallas/Fort Worth to Heathrow flights
Newark to Lisbon flights
Dulles Intl to Charles de Gaulle flights
LaGuardia to Gatwick flights
John F Kennedy Intl to Luton flights
Newark to Malpensa flights
Newark to Barcelona-El Prat flights
Newark to Dublin flights
Newark to Frankfurt flights
San Francisco to Charles de Gaulle flights
Dulles Intl to Madrid flights
O'Hare Intl to Charles de Gaulle flights
Seattle to Heathrow flights
Dallas/Fort Worth to Charles de Gaulle flights
Newark to Luton flights
Newark to Stansted flights
O'Hare Intl to Leonardo da Vinci/Fiumicino flights
LaGuardia to Leonardo da Vinci/Fiumicino flights
Dulles Intl to Leonardo da Vinci/Fiumicino flights

Top 3 airlines flying from Montana to United Kingdom

Discover the top 3 airlines that operate flights from Montana to United Kingdom. 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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$645Average$944FlexibilityNo cancel feeOn-time69%
DeltaCheapest$677Average$946FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$799Average$799FlexibilityNo cancel feeOn-time75%

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