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Cheap flights from Kalispell to London from $399

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Kalispell to London departing on 1/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Kalispell to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
2:42 pm - 7:30 am
FCA
-
LHR
57h 48m2 stops
United Airlines Logo
6:00 pm - 1:34 pm
LHR
-
FCA
50h 34m2 stops
$644United Airlines
qua, fev 4 - sáb, fev 14
United Airlines Logo
6:00 am - 9:40 am
FCA
-
LHR
20h 40m1 stop
United Airlines Logo
11:35 am - 9:59 pm
LHR
-
FCA
17h 24m1 stop
$656United Airlines
sex, jan 23 - ter, jan 27
United Airlines Logo
6:00 am - 10:25 am
FCA
-
LHR
21h 25m2 stops
United Airlines Logo
11:35 am - 9:59 pm
LHR
-
FCA
17h 24m1 stop
$660United Airlines
sex, jan 23 - ter, jan 27
United Airlines Logo
6:00 am - 6:40 am
FCA
-
LHR
17h 40m2 stops
United Airlines Logo
7:25 am - 9:59 pm
LHR
-
FCA
21h 34m2 stops
$661United Airlines
sex, jan 23 - ter, jan 27
United Airlines Logo
2:29 pm - 9:35 am
FCA
-
LHR
36h 06m2 stops
United Airlines Logo
2:50 pm - 9:30 pm
LHR
-
FCA
13h 40m1 stop
$828United Airlines
qua, mai 20 - ter, mai 26
United Airlines Logo
2:29 pm - 6:35 am
FCA
-
LHR
33h 06m2 stops
United Airlines Logo
4:40 pm - 11:41 am
LHR
-
FCA
26h 01m2 stops
$832United Airlines
qua, mai 20 - ter, mai 26
United Airlines Logo
6:31 am - 12:20 pm
FCA
-
LHR
22h 49m1 stop
United Airlines Logo
10:50 am - 9:30 pm
LHR
-
FCA
41h 40m2 stops
$873United Airlines
sex, mai 1 - seg, mai 11
United Airlines Logo
2:29 pm - 10:00 am
FCA
-
LHR
36h 31m2 stops
United Airlines Logo
10:50 am - 9:30 pm
LHR
-
FCA
41h 40m2 stops
$876United Airlines
sex, mai 1 - seg, mai 11
Delta Logo
3:00 pm - 1:10 pm
FCA
-
LHR
15h 10m1 stop
Delta Logo
5:35 pm - 5:42 pm
LHR
-
FCA
31h 07m2 stops
$882Delta
qui, abr 23 - seg, mai 4
Multiple Airlines Logo
11:59 am - 2:15 pm
FCA
-
LHR
19h 16m2 stops
Multiple Airlines Logo
7:45 pm - 5:42 pm
LHR
-
FCA
28h 57m2 stops
$886Multiple Airlines
qui, abr 23 - seg, mai 4

KLM flights from Kalispell to London Heathrow Airport

Our best KLM deals on Kalispell to London Heathrow Airport flight tickets
KLM
May 20
FCA1:35 pmKalispell Glacier Park
13h 15m
1 stop
LHR9:50 amLondon Heathrow
May 26
LHR10:55 amLondon Heathrow
13h 47m
1 stop
FCA5:42 pmKalispell Glacier Park
$976
Find similar
KLM
May 20
FCA1:35 pmKalispell Glacier Park
13h 15m
1 stop
LHR9:50 amLondon Heathrow
May 26
LHR11:45 amLondon Heathrow
18h 17m
2 stops
FCA11:02 pmKalispell Glacier Park
$980
Find similar
KLM
Mar 19
FCA12:10 pmKalispell Glacier Park
16h 20m
2 stops
LHR10:30 amLondon Heathrow
Mar 28
LHR5:20 pmLondon Heathrow
29h 58m
2 stops
FCA5:18 pmKalispell Glacier Park
$1,150
Find similar

United Airlines flights from Kalispell to London Heathrow Airport

Our best United Airlines deals on Kalispell to London Heathrow Airport flight tickets
United Airlines
Feb 4
FCA2:42 pmKalispell Glacier Park
57h 48m
2 stops
LHR7:30 amLondon Heathrow
Feb 14
LHR6:00 pmLondon Heathrow
50h 34m
2 stops
FCA1:34 pmKalispell Glacier Park
$644
Find similar
United Airlines
Jan 23
FCA6:00 amKalispell Glacier Park
20h 40m
1 stop
LHR9:40 amLondon Heathrow
Jan 27
LHR11:35 amLondon Heathrow
17h 24m
1 stop
FCA9:59 pmKalispell Glacier Park
$656
Find similar
United Airlines
Jan 23
FCA6:00 amKalispell Glacier Park
21h 25m
2 stops
LHR10:25 amLondon Heathrow
Jan 27
LHR11:35 amLondon Heathrow
17h 24m
1 stop
FCA9:59 pmKalispell Glacier Park
$660
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Kalispell to London Heathrow Airport 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, momondo users made 832,500 searches. Data last updated dezembro 11, 2025.
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

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

qua 2/4

2:42 pm-7:30 am

2 stops57h 48m

London Heathrow

sáb 2/14

6:00 pm-1:34 pm

2 stops50h 34m

$644

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

sex 1/23

6:00 am-9:40 am

1 stop20h 40m

London Heathrow

ter 1/27

11:35 am-9:59 pm

1 stop17h 24m

$656

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

sex 1/23

6:00 am-10:25 am

2 stops21h 25m

London Heathrow

ter 1/27

11:35 am-9:59 pm

1 stop17h 24m

$660

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

sex 1/23

6:00 am-6:40 am

2 stops17h 40m

London Heathrow

ter 1/27

7:25 am-9:59 pm

2 stops21h 34m

$661

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

qua 5/20

2:29 pm-9:35 am

2 stops36h 06m

London Heathrow

ter 5/26

2:50 pm-9:30 pm

1 stop13h 40m

$828

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

qua 5/20

2:29 pm-6:35 am

2 stops33h 06m

London Heathrow

ter 5/26

4:40 pm-11:41 am

2 stops26h 01m

$832

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

sex 5/1

6:31 am-12:20 pm

1 stop22h 49m

London Heathrow

seg 5/11

10:50 am-9:30 pm

2 stops41h 40m

$873

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

sex 5/1

2:29 pm-10:00 am

2 stops36h 31m

London Heathrow

seg 5/11

10:50 am-9:30 pm

2 stops41h 40m

$876

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

qui 4/23

3:00 pm-1:10 pm

1 stop15h 10m

London Heathrow

seg 5/4

5:35 pm-5:42 pm

2 stops31h 07m

$882

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

qui 4/23

11:59 am-2:15 pm

2 stops19h 16m

London Heathrow

seg 5/4

7:45 pm-5:42 pm

2 stops28h 57m

$886

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

See travel insights to London from

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 typical price of a round-trip flight between Kalispell and London Heathrow Airport?

What is the cheapest day to depart on your flight to London Heathrow Airport?

Our data shows that Monday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $647. The most expensive day to fly to London Heathrow Airport is Friday, with ticket prices averaging around $1,084.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is at noon. momondo users have found flights departing from Kalispell to London Heathrow Airport at noon for as low as $834. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of $885.

Can stopping save me money on Kalispell to London Heathrow Airport flights?

You could potentially save up to 5% on your flight if you consider stops on a Kalispell to London Heathrow Airport flight.

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 round-trip 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

Fastest flight time

13h 15m

Direct flights

None
The fastest flight from Kalispell to London Heathrow Airport takes 13h 15m
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

  • How far is Kalispell Glacier Park to London Heathrow by plane?

    A flight from Kalispell Glacier Park to London Heathrow will travel around 4520.2 mi. In terms of flight time, this usually takes a little over 13h 15m.

  • 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 are updated daily.

  • How many operators does momondo search for flights from Kalispell Glacier Park Airport to London Heathrow Airport?

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

    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 Kalispell Glacier Park Airport to London Heathrow Airport.

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

    The travel and health documents you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Kalispell to London Heathrow Airport?

Best airlines flying from Kalispell to London Heathrow Airport

Compare and see reviews for airlines that fly from Kalispell to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
Virgin AtlanticPriceFrom $707Free CancellationRating
7.5
675 reviews
Search Virgin Atlantic flights
United AirlinesPriceFrom $733Free CancellationRating
7.4
9,093 reviews
Search United Airlines flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Milton Keynes
Dover
Luton
Slough
Guildford
Hayes
Dartford
Stratford-upon-Avon
Crawley
Brentwood
Salisbury
Wembley
Romford
Watford
Ilford
Cobham
Folkestone
Uxbridge

Why use momondo?

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

It is quick and easy to find Kalispell to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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 not ready to book a flight from Kalispell to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

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