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Cheap flights from Kalispell to London from $334

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 10/28. 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
2:29 pm - 9:40 am
FCA
-
LHR
13h 11m
1 stop
United Airlines Logo
6:35 am - 9:30 pm
LHR
-
FCA
21h 55m
2 stops
$879United Airlines
mar., oct. 27 - vie., dic. 4
United Airlines Logo
6:31 am - 9:40 am
FCA
-
LHR
21h 09m
1 stop
United Airlines Logo
11:10 am - 1:33 pm
LHR
-
FCA
33h 23m
2 stops
$885United Airlines
mié., oct. 28 - mié., dic. 9
Delta Logo
5:25 am - 10:00 am
FCA
-
LHR
22h 35m
1 stop
Delta Logo
6:20 am - 5:45 pm
LHR
-
FCA
18h 25m
2 stops
$886Delta
mié., oct. 28 - jue., dic. 10
Delta Logo
3:14 pm - 1:05 pm
FCA
-
LHR
14h 51m
1 stop
Delta Logo
6:15 am - 11:51 pm
LHR
-
FCA
24h 36m
2 stops
$887Delta
mié., ago. 19 - mié., ago. 26
KLM Logo
1:29 pm - 1:50 pm
FCA
-
LHR
17h 21m
2 stops
KLM Logo
8:25 pm - 5:45 pm
LHR
-
FCA
28h 20m
2 stops
$888KLM
dom., nov. 1 - mar., dic. 8
Delta Logo
5:25 am - 9:20 am
FCA
-
LHR
21h 55m
2 stops
Delta Logo
11:45 am - 12:29 pm
LHR
-
FCA
31h 44m
2 stops
$889Delta
mié., oct. 28 - vie., dic. 4
Delta Logo
1:29 pm - 7:05 am
FCA
-
LHR
35h 36m
1 stop
Delta Logo
11:45 am - 12:29 pm
LHR
-
FCA
31h 44m
2 stops
$890Delta
sáb., oct. 31 - mié., dic. 9
Delta Logo
12:02 pm - 1:15 pm
FCA
-
LHR
18h 13m
2 stops
Delta Logo
6:15 am - 11:51 pm
LHR
-
FCA
24h 36m
2 stops
$891Delta
mié., ago. 19 - mié., ago. 26
Delta Logo
1:29 pm - 7:05 am
FCA
-
LHR
35h 36m
1 stop
Delta Logo
6:20 am - 11:07 pm
LHR
-
FCA
23h 47m
2 stops
$892Delta
sáb., oct. 31 - mar., dic. 8
Alaska Airlines Logo
2:03 pm - 12:20 pm
FCA
-
LHR
16h 17m
1 stop
Alaska Airlines Logo
2:45 pm - 12:14 pm
LHR
-
FCA
28h 29m
1 stop
$895Alaska Airlines
mar., oct. 27 - jue., dic. 3

United Airlines flights from Kalispell to London Heathrow Airport

Our best United Airlines deals on Kalispell to London Heathrow Airport flight tickets
United Airlines
Oct 27
FCA2:29 pmKalispell Glacier Park
13h 11m
1 stop
LHR9:40 amLondon Heathrow
Dec 4
LHR6:35 amLondon Heathrow
21h 55m
2 stops
FCA9:30 pmKalispell Glacier Park
$879
United Airlines
Oct 28
FCA6:31 amKalispell Glacier Park
21h 09m
1 stop
LHR9:40 amLondon Heathrow
Dec 9
LHR11:10 amLondon Heathrow
33h 23m
2 stops
FCA1:33 pmKalispell Glacier Park
$885
United Airlines
Nov 1
FCA6:31 amKalispell Glacier Park
19h 39m
2 stops
LHR9:10 amLondon Heathrow
Dec 3
LHR3:00 pmLondon Heathrow
37h 30m
2 stops
FCA9:30 pmKalispell Glacier Park
$897

Delta flights from Kalispell to London Heathrow Airport

Our best Delta deals on Kalispell to London Heathrow Airport flight tickets
Delta
Oct 28
FCA5:25 amKalispell Glacier Park
22h 35m
1 stop
LHR10:00 amLondon Heathrow
Dec 10
LHR6:20 amLondon Heathrow
18h 25m
2 stops
FCA5:45 pmKalispell Glacier Park
$886
Delta
Aug 19
FCA3:14 pmKalispell Glacier Park
14h 51m
1 stop
LHR1:05 pmLondon Heathrow
Aug 26
LHR6:15 amLondon Heathrow
24h 36m
2 stops
FCA11:51 pmKalispell Glacier Park
$887
Delta
Oct 28
FCA5:25 amKalispell Glacier Park
21h 55m
2 stops
LHR9:20 amLondon Heathrow
Dec 4
LHR11:45 amLondon Heathrow
31h 44m
2 stops
FCA12:29 pmKalispell Glacier Park
$889

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 mayo 13, 2026.
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 round-trip
Quickest round-trip

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

mar. 10/27

2:29 pm-9:40 am

1 stop13h 11m

London Heathrow

vie. 12/4

6:35 am-9:30 pm

2 stops21h 55m

$879

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

mié. 10/28

6:31 am-9:40 am

1 stop21h 09m

London Heathrow

mié. 12/9

11:10 am-1:33 pm

2 stops33h 23m

$885

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

mié. 10/28

5:25 am-10:00 am

1 stop22h 35m

London Heathrow

jue. 12/10

6:20 am-5:45 pm

2 stops18h 25m

$886

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

mié. 8/19

3:14 pm-1:05 pm

1 stop14h 51m

London Heathrow

mié. 8/26

6:15 am-11:51 pm

2 stops24h 36m

$887

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

dom. 11/1

1:29 pm-1:50 pm

2 stops17h 21m

London Heathrow

mar. 12/8

8:25 pm-5:45 pm

2 stops28h 20m

$888

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

mié. 10/28

5:25 am-9:20 am

2 stops21h 55m

London Heathrow

vie. 12/4

11:45 am-12:29 pm

2 stops31h 44m

$889

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

sáb. 10/31

1:29 pm-7:05 am

1 stop35h 36m

London Heathrow

mié. 12/9

11:45 am-12:29 pm

2 stops31h 44m

$890

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

mié. 8/19

12:02 pm-1:15 pm

2 stops18h 13m

London Heathrow

mié. 8/26

6:15 am-11:51 pm

2 stops24h 36m

$891

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

sáb. 10/31

1:29 pm-7:05 am

1 stop35h 36m

London Heathrow

mar. 12/8

6:20 am-11:07 pm

2 stops23h 47m

$892

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

mar. 10/27

2:03 pm-12:20 pm

1 stop16h 17m

London Heathrow

jue. 12/3

2:45 pm-12:14 pm

1 stop28h 29m

$895

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

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

You could potentially save up to 23% 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

12h 15m

Direct flights

None
The fastest flight from Kalispell to London Heathrow Airport takes 12h 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

Frequently asked questions about flying from Kalispell to London Heathrow Airport

  • 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 12h 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
United AirlinesPriceFrom $733Free CancellationRating
7.4
9,706 reviews
Search United Airlines flights

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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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