What is the cheapest airline that flies from Montana to United Kingdom?

United Airlines, Alaska Airlines, and Delta are the most popular carriers operating from Montana to United Kingdom

What airlines fly to United Kingdom?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to United Kingdom from Montana according to our data. United Airlines is the first choice among our users, with 74% of people opting to fly with this airline when traveling to United Kingdom. Keep in mind that there are 3 different airlines that fly to United Kingdom on a routine basis, so you have a few additional options to choose from.

How long is the flight from Montana to United Kingdom?

The flight from Montana to United Kingdom depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Bozeman (a popular airport in Montana) to London Heathrow Airport (the most popular airport in United Kingdom), then the flight time is 12h 10m on average. If you fly from Kalispell (another popular airport in Montana) to London Heathrow Airport, then the average flight time is 12h 11m.

When did momondo last update prices for flights from Montana to United Kingdom?

Prices for flights from Montana to United Kingdom were last updated today.

How many operators does momondo search for flights from Montana to United Kingdom?

As of August 2026, there are 2 operators available to choose from for flights from Montana to United Kingdom.

How old do you have to be to fly from Montana to United Kingdom?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montana to United Kingdom.

What documentation or ID do you need to fly to United Kingdom?

The necessary travel and health documents for your United Kingdom trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$397 Cheap Flights from Montana to the United Kingdom in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Montana to the United Kingdom

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:30 pm - 4:50 pm-

43h 20m

11:35 am - 8:59 pm-

16h 24m

$783United Airlines

Mon, Dec 7 - Thu, Dec 10

2:30 pm - 4:50 pm-

43h 20m

11:10 am - 8:59 pm-

16h 49m

$791United Airlines

Mon, Dec 7 - Thu, Dec 10

7:00 am - 8:30 am-

42h 30m

7:30 am - 8:59 pm-

20h 29m

$835United Airlines

Mon, Dec 7 - Thu, Dec 10

2:30 pm - 8:30 am-

35h 00m

7:30 am - 8:59 pm-

20h 29m

$839United Airlines

Mon, Dec 7 - Thu, Dec 10

1:42 pm - 5:00 pm-

20h 18m

11:05 am - 12:52 pm-

32h 47m

$865American Airlines

Sun, Nov 1 - Tue, Nov 17

12:25 pm - 10:00 am-

14h 35m

5:05 pm - 5:35 pm-

31h 30m

$874KLM

Mon, Nov 9 - Tue, Dec 8

12:25 pm - 10:00 am-

14h 35m

5:50 pm - 5:35 pm-

30h 45m

$874KLM

Mon, Nov 9 - Wed, Nov 18

5:33 am - 10:00 am-

21h 27m

8:40 am - 7:57 pm-

18h 17m

$875Delta

Mon, Nov 16 - Thu, Nov 19

5:33 am - 10:00 am-

21h 27m

8:40 am - 7:57 pm-

18h 17m

$876Delta

Mon, Nov 16 - Thu, Nov 19

5:33 am - 10:00 am-

21h 27m

8:40 am - 7:57 pm-

18h 17m

$877Delta

Mon, Nov 16 - Thu, Nov 19

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SWISS flights from Montana to United Kingdom

Our best SWISS deals on Montana to United Kingdom flight tickets

SWISS

Nov 15

GTF6:30 amGreat Falls

18h 25m

2 stops

LHR7:55 amLondon Heathrow

Dec 9

LHR11:35 amLondon Heathrow

16h 45m

1 stop

GTF9:20 pmGreat Falls

$962

SWISS

Oct 22

MSO2:38 pmMissoula Johnson-Bell Field

12h 02m

1 stop

LHR9:40 amLondon Heathrow

Oct 30

LHR10:25 amLondon Heathrow

17h 22m

2 stops

MSO9:47 pmMissoula Johnson-Bell Field

$1,022

United Airlines flights from Montana to United Kingdom

Our best United Airlines deals on Montana to United Kingdom flight tickets

United Airlines

Dec 7

HLN2:30 pmHelena

43h 20m

2 stops

LHR4:50 pmLondon Heathrow

Dec 10

LHR11:35 amLondon Heathrow

16h 24m

1 stop

HLN8:59 pmHelena

$783

United Airlines

Dec 7

HLN2:30 pmHelena

43h 20m

2 stops

LHR4:50 pmLondon Heathrow

Dec 10

LHR11:10 amLondon Heathrow

16h 49m

2 stops

HLN8:59 pmHelena

$791

United Airlines

Dec 7

HLN7:00 amHelena

42h 30m

2 stops

LHR8:30 amLondon Heathrow

Dec 10

LHR7:30 amLondon Heathrow

20h 29m

2 stops

HLN8:59 pmHelena

$835

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HelenaLondon

HLN - LHR

HLNLHR

Helena

Mon 12/7

2:30 pm-4:50 pm

2 stops43h 20m

London Heathrow

Thu 12/10

11:35 am-8:59 pm

1 stop16h 24m

$783

HelenaLondon

HLN - LHR

HLNLHR

Helena

Mon 12/7

2:30 pm-4:50 pm

2 stops43h 20m

London Heathrow

Thu 12/10

11:10 am-8:59 pm

2 stops16h 49m

$791

HelenaLondon

HLN - LHR

HLNLHR

Helena

Mon 12/7

7:00 am-8:30 am

2 stops42h 30m

London Heathrow

Thu 12/10

7:30 am-8:59 pm

2 stops20h 29m

$835

HelenaLondon

HLN - LHR

HLNLHR

Helena

Mon 12/7

2:30 pm-8:30 am

2 stops35h 00m

London Heathrow

Thu 12/10

7:30 am-8:59 pm

2 stops20h 29m

$839

BozemanEdinburgh

BZN - EDI

BZNEDI

Bozeman Gallatin Field

Sun 11/1

1:42 pm-5:00 pm

2 stops20h 18m

Edinburgh Turnhouse

Tue 11/17

11:05 am-12:52 pm

2 stops32h 47m

$865

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Mon 11/9

12:25 pm-10:00 am

1 stop14h 35m

London Heathrow

Tue 12/8

5:05 pm-5:35 pm

2 stops31h 30m

$874

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Mon 11/9

12:25 pm-10:00 am

1 stop14h 35m

London Heathrow

Wed 11/18

5:50 pm-5:35 pm

2 stops30h 45m

$874

Quickest round-trip

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Mon 11/16

5:33 am-10:00 am

1 stop21h 27m

London Heathrow

Thu 11/19

8:40 am-7:57 pm

2 stops18h 17m

$875

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Mon 11/16

5:33 am-10:00 am

1 stop21h 27m

London Heathrow

Thu 11/19

8:40 am-7:57 pm

2 stops18h 17m

$876

MissoulaLondon

MSO - LHR

MSOLHR

Missoula Johnson-Bell Field

Mon 11/16

5:33 am-10:00 am

1 stop21h 27m

London Heathrow

Thu 11/19

8:40 am-7:57 pm

2 stops18h 17m

$877

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Montana to United Kingdom

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to United Kingdom?

In general, October is the cheapest month to fly from Montana to United Kingdom. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $796. If you aren’t able to travel to United Kingdom during the month of October, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $825.

Can stopping save me money on Montana to United Kingdom flights?

You could potentially save up to 23% on your flight if you consider stops on a Montana to United Kingdom flight.

Cheap Montana to United Kingdom flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montana to United Kingdom

Fastest flight time	12h 10m
Direct flights	None

The fastest flight from Montana to United Kingdom takes 12h 10m

There are no direct flights from Montana to United Kingdom. There are no popular flight routes from Montana to United Kingdom.

Search flight deals

Frequently asked questions about flying from Montana to the United Kingdom

When did momondo last update prices for flights from Montana to United Kingdom?
Prices for flights from Montana to United Kingdom were last updated today.
How many operators does momondo search for flights from Montana to United Kingdom?
As of August 2026, there are 2 operators available to choose from for flights from Montana to United Kingdom.
How old do you have to be to fly from Montana to United Kingdom?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montana to United Kingdom.
What documentation or ID do you need to fly to United Kingdom?
The necessary travel and health documents for your United Kingdom trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Montana to United Kingdom

Compare and see reviews for airlines that fly from Montana to United Kingdom with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $556	Free Cancellation	Rating 7.4 10,059 reviews	Search United Airlines flights
Delta	PriceFrom $604	Free Cancellation	Rating 7.8 8,483 reviews	Search Delta flights
American Airlines	PriceFrom $652	Free Cancellation	Rating 7.1 11,845 reviews	Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Montana to United Kingdom?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Montana to United Kingdom. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Montana to United Kingdom with flexible booking policies on momondo?

momondo does allow users to show only those flights to United Kingdom from Montana which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Montana to United Kingdom?

Once all potential Montana to United Kingdom flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Montana to United Kingdom right now. Can momondo alert me if prices change?

Price alerts on flights to United Kingdom from Montana are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.