When did momondo last update prices for flights from Kalispell Glacier Park Airport to London Heathrow Airport?

Prices for flights from Kalispell Glacier Park Airport to London Heathrow Airport refresh daily.

How old do you have to be to fly from Kalispell Glacier Park Airport to London Heathrow Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Kalispell Glacier Park Airport to London Heathrow Airport.

What documentation or ID do you need to fly to London Heathrow Airport?

The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

£455 Cheap Flights from Kalispell to London Heathrow Airport in 2026

Find the cheapest flights from Kalispell to London

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

06:14 - 09:40FCA Kalispell Glacier Park-LHR London Heathrow

20h 26m1 stop Denver Intl

06:35 - 21:30LHR London Heathrow-FCA Kalispell Glacier Park

21h 55m2 stops Munich Franz Josef Strauss Denver Intl

£648United Airlines

Sun, 15 Nov - Thu, 3 Dec

12:25 - 13:45FCA Kalispell Glacier Park-LHR London Heathrow

18h 20m2 stops Salt Lake City Paris Charles de Gaulle

20:25 - 17:35LHR London Heathrow-FCA Kalispell Glacier Park

28h 10m2 stops Amsterdam Schiphol Salt Lake City

£652Multiple Airlines

Wed, 18 Nov - Wed, 2 Dec

05:15 - 10:40FCA Kalispell Glacier Park-LHR London Heathrow

22h 25m2 stops Salt Lake City Seattle/Tacoma Intl

11:45 - 14:40LHR London Heathrow-FCA Kalispell Glacier Park

33h 55m2 stops Amsterdam Schiphol Minneapolis St Paul

£655Delta

Sun, 15 Nov - Fri, 4 Dec

14:36 - 09:40FCA Kalispell Glacier Park-LHR London Heathrow

12h 04m1 stop Denver Intl

16:40 - 21:30LHR London Heathrow-FCA Kalispell Glacier Park

35h 50m2 stops Munich Franz Josef Strauss Denver Intl

£656United Airlines

Sun, 15 Nov - Wed, 2 Dec

14:10 - 12:20FCA Kalispell Glacier Park-LHR London Heathrow

15h 10m1 stop Seattle/Tacoma Intl

14:45 - 23:59LHR London Heathrow-FCA Kalispell Glacier Park

16h 14m1 stop Seattle/Tacoma Intl

£657Alaska Airlines

Sun, 6 Dec - Tue, 8 Dec

14:29 - 09:40FCA Kalispell Glacier Park-LHR London Heathrow

12h 11m1 stop Denver Intl

18:00 - 21:30LHR London Heathrow-FCA Kalispell Glacier Park

34h 30m2 stops Toronto Pearson Intl Denver Intl

£658United Airlines

Sun, 6 Dec - Tue, 8 Dec

06:31 - 09:10FCA Kalispell Glacier Park-LHR London Heathrow

19h 39m2 stops Denver Intl Newark

15:00 - 21:30LHR London Heathrow-FCA Kalispell Glacier Park

37h 30m2 stops Toronto Pearson Intl Denver Intl

£662United Airlines

Sun, 6 Dec - Tue, 8 Dec

05:15 - 11:35FCA Kalispell Glacier Park-LHR London Heathrow

23h 20m2 stops Salt Lake City Los Angeles

14:45 - 17:35LHR London Heathrow-FCA Kalispell Glacier Park

33h 50m2 stops Paris Charles de Gaulle Salt Lake City

£666Delta

Sun, 15 Nov - Wed, 2 Dec

06:14 - 07:10FCA Kalispell Glacier Park-LHR London Heathrow

17h 56m2 stops Denver Intl Montreal Pierre Elliott Trudeau Intl

11:35 - 21:30LHR London Heathrow-FCA Kalispell Glacier Park

16h 55m1 stop Denver Intl

£672United Airlines

Wed, 18 Nov - Thu, 3 Dec

06:14 - 07:10FCA Kalispell Glacier Park-LHR London Heathrow

17h 56m2 stops Denver Intl Montreal Pierre Elliott Trudeau Intl

06:35 - 21:30LHR London Heathrow-FCA Kalispell Glacier Park

21h 55m2 stops Munich Franz Josef Strauss Denver Intl

£684United Airlines

Wed, 18 Nov - Tue, 1 Dec

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United Airlines flights from Kalispell to London Heathrow Airport

Our best United Airlines deals on Kalispell to London Heathrow Airport flight tickets

United Airlines

15 Nov

FCA14:36Kalispell Glacier Park

12h 04m

1 stop

LHR09:40London Heathrow

4 Dec

LHR06:35London Heathrow

21h 55m

2 stops

FCA21:30Kalispell Glacier Park

£648

United Airlines

15 Nov

FCA14:36Kalispell Glacier Park

12h 04m

1 stop

LHR09:40London Heathrow

2 Dec

LHR16:40London Heathrow

35h 50m

2 stops

FCA21:30Kalispell Glacier Park

£656

United Airlines

6 Dec

FCA14:29Kalispell Glacier Park

12h 11m

1 stop

LHR09:40London Heathrow

8 Dec

LHR18:00London Heathrow

34h 30m

2 stops

FCA21:30Kalispell Glacier Park

£658

Delta flights from Kalispell to London Heathrow Airport

Our best Delta deals on Kalispell to London Heathrow Airport flight tickets

Delta

15 Nov

FCA05:15Kalispell Glacier Park

22h 25m

2 stops

LHR10:40London Heathrow

4 Dec

LHR11:45London Heathrow

33h 55m

2 stops

FCA14:40Kalispell Glacier Park

£655

Delta

15 Nov

FCA05:15Kalispell Glacier Park

23h 20m

2 stops

LHR11:35London Heathrow

2 Dec

LHR14:45London Heathrow

33h 50m

2 stops

FCA17:35Kalispell Glacier Park

£666

Delta

21 Nov

FCA15:35Kalispell Glacier Park

32h 30m

1 stop

LHR07:05London Heathrow

4 Dec

LHR11:45London Heathrow

33h 55m

2 stops

FCA14:40Kalispell Glacier Park

£690

momondo Fare Finder

Use the filters below to find and compare flights from Kalispell to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

KalispellLondon

FCA Kalispell Glacier Park - LHR London Heathrow

FCALHR

Kalispell Glacier Park

Sun 15/11

06:14-09:40

1 stop20h 26m

London Heathrow

Thu 3/12

06:35-21:30

2 stops21h 55m

£648

KalispellLondon

FCA Kalispell Glacier Park - LHR London Heathrow

FCALHR

Kalispell Glacier Park

Wed 18/11

12:25-13:45

2 stops18h 20m

London Heathrow

Wed 2/12

20:25-17:35

2 stops28h 10m

£652

KalispellLondon

FCA Kalispell Glacier Park - LHR London Heathrow

FCALHR

Kalispell Glacier Park

Sun 15/11

05:15-10:40

2 stops22h 25m

London Heathrow

Fri 4/12

11:45-14:40

2 stops33h 55m

£655

KalispellLondon

FCA Kalispell Glacier Park - LHR London Heathrow

FCALHR

Kalispell Glacier Park

Sun 15/11

14:36-09:40

1 stop12h 04m

London Heathrow

Wed 2/12

16:40-21:30

2 stops35h 50m

£656

Fastest return journey

KalispellLondon

FCA Kalispell Glacier Park - LHR London Heathrow

FCALHR

Kalispell Glacier Park

Sun 6/12

14:10-12:20

1 stop15h 10m

London Heathrow

Tue 8/12

14:45-23:59

1 stop16h 14m

£657

KalispellLondon

FCA Kalispell Glacier Park - LHR London Heathrow

FCALHR

Kalispell Glacier Park

Sun 6/12

14:29-09:40

1 stop12h 11m

London Heathrow

Tue 8/12

18:00-21:30

2 stops34h 30m

£658

KalispellLondon

FCA Kalispell Glacier Park - LHR London Heathrow

FCALHR

Kalispell Glacier Park

Sun 6/12

06:31-09:10

2 stops19h 39m

London Heathrow

Tue 8/12

15:00-21:30

2 stops37h 30m

£662

KalispellLondon

FCA Kalispell Glacier Park - LHR London Heathrow

FCALHR

Kalispell Glacier Park

Sun 15/11

05:15-11:35

2 stops23h 20m

London Heathrow

Wed 2/12

14:45-17:35

2 stops33h 50m

£666

KalispellLondon

FCA Kalispell Glacier Park - LHR London Heathrow

FCALHR

Kalispell Glacier Park

Wed 18/11

06:14-07:10

2 stops17h 56m

London Heathrow

Thu 3/12

11:35-21:30

1 stop16h 55m

£672

KalispellLondon

FCA Kalispell Glacier Park - LHR London Heathrow

FCALHR

Kalispell Glacier Park

Wed 18/11

06:14-07:10

2 stops17h 56m

London Heathrow

Tue 1/12

06:35-21:30

2 stops21h 55m

£684

Flights are sorted by cheapest return flights first.

Showing 1-10 of 14 resultsSorted by cheapest first

How to get the cheapest flight ticket from Kalispell to London Heathrow Airport

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

What is the cheapest airline that flies from Kalispell Glacier Park to London Heathrow?

United Airlines is the most popular carrier operating from Kalispell Glacier Park to London Heathrow

When to book flights from Kalispell to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Kalispell to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Kalispell to London Heathrow Airport (FCA to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Kalispell to London Heathrow Airport

Best price found	£455
Fastest flight time	12h 11m
Direct flights	None

The best one-way flight to London Heathrow Airport from Kalispell in the past 72 hours is £455. The best return flight deal from Kalispell to London Heathrow Airport found on momondo in the last 72 hours is £648.

The fastest flight from Kalispell to London Heathrow Airport takes 12h 11m

There are no direct flights from Kalispell to London Heathrow Airport. There are no popular flight routes from Kalispell to London Heathrow Airport.

Search flight deals

Frequently asked questions about flying from Kalispell to London Heathrow Airport

How far is Kalispell Glacier Park to London Heathrow by plane?
London Heathrow is 4520.2 mi away from Kalispell Glacier Park. By plane, this route typically takes 12h 11m.
When did momondo last update prices for flights from Kalispell Glacier Park Airport to London Heathrow Airport?
Prices for flights from Kalispell Glacier Park Airport to London Heathrow Airport refresh daily.
How old do you have to be to fly from Kalispell Glacier Park Airport to London Heathrow Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Kalispell Glacier Park Airport to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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Why use momondo?

Why should I use momondo to find a flight deal from Kalispell to London?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Kalispell to London. momondo saves you time and could save you money on your trip.

Can I find flights from Kalispell to London with flexible booking policies on momondo?

Yes. All flights to London from Kalispell on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Kalispell to London?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Kalispell.

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

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Kalispell and alert you when they change.