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Cheap flights from Kalispell to London from $528

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 8/24. 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 (FCA-LHR)

Cheap round-trip flights

United Airlines Logo
5:15 pm - 12:20 pmFCA-LHR
12h 05m1 stop
United Airlines Logo
5:40 pm - 9:31 pmLHR-FCA
34h 51m2 stops
$632United Airlines
Find Deal
mar., sep. 23 - mar., sep. 30
Delta Logo
5:25 am - 8:45 amFCA-LHR
20h 20m2 stops
Delta Logo
6:20 am - 5:45 pmLHR-FCA
18h 25m2 stops
$637Delta
Find Deal
jue., nov. 13 - mié., nov. 19
Delta Logo
5:20 am - 9:50 amFCA-LHR
21h 30m1 stop
Delta Logo
6:50 pm - 1:52 pmLHR-FCA
26h 02m2 stops
$643Delta
Find Deal
vie., sep. 19 - mar., sep. 30
Delta Logo
5:20 am - 9:50 amFCA-LHR
21h 30m1 stop
Delta Logo
4:05 pm - 1:52 pmLHR-FCA
28h 47m2 stops
$644Delta
Find Deal
vie., sep. 19 - mar., sep. 30
United Airlines Logo
5:15 pm - 12:20 pmFCA-LHR
12h 05m1 stop
United Airlines Logo
2:50 pm - 9:31 pmLHR-FCA
13h 41m1 stop
$649United Airlines
Find Deal
mar., sep. 23 - mar., sep. 30
United Airlines Logo
4:09 pm - 2:10 pmFCA-LHR
15h 01m1 stop
United Airlines Logo
11:25 am - 9:31 pmLHR-FCA
17h 06m1 stop
$650United Airlines
Find Deal
mié., sep. 24 - mié., oct. 1
United Airlines Logo
10:47 am - 11:45 amFCA-LHR
17h 58m2 stops
United Airlines Logo
9:30 am - 9:31 pmLHR-FCA
19h 01m2 stops
$654United Airlines
Find Deal
mié., sep. 24 - mié., oct. 1
United Airlines Logo
2:31 pm - 12:20 pmFCA-LHR
14h 49m1 stop
United Airlines Logo
12:05 pm - 4:08 pmLHR-FCA
35h 03m2 stops
$683United Airlines
Find Deal
jue., sep. 25 - jue., oct. 2
Virgin Atlantic Logo
11:54 am - 2:15 pmFCA-LHR
19h 21m2 stops
Virgin Atlantic Logo
9:40 am - 11:13 pmLHR-FCA
20h 33m2 stops
$694Virgin Atlantic
Find Deal
sáb., sep. 13 - sáb., sep. 20
British Airways Logo
4:22 pm - 1:40 pmFCA-LHR
14h 18m1 stop
British Airways Logo
9:50 am - 11:58 pmLHR-FCA
21h 08m1 stop
$2,596British Airways
Find Deal
mié., oct. 1 - lun., oct. 6

United Airlines flights from Kalispell to London Heathrow Airport

Our best United Airlines deals on Kalispell to London Heathrow Airport flight tickets
United Airlines
Sep 23
FCA5:15 pmKalispell Glacier Park
12h 05m
1 stop
LHR12:20 pmLondon Heathrow
Sep 30
LHR5:40 pmLondon Heathrow
34h 51m
2 stops
FCA9:31 pmKalispell Glacier Park
$632
Find similar
United Airlines
Sep 23
FCA5:15 pmKalispell Glacier Park
12h 05m
1 stop
LHR12:20 pmLondon Heathrow
Sep 30
LHR2:50 pmLondon Heathrow
13h 41m
1 stop
FCA9:31 pmKalispell Glacier Park
$649
Find similar
United Airlines
Sep 24
FCA4:09 pmKalispell Glacier Park
15h 01m
1 stop
LHR2:10 pmLondon Heathrow
Oct 1
LHR11:25 amLondon Heathrow
17h 06m
1 stop
FCA9:31 pmKalispell Glacier Park
$650
Find similar

Delta flights from Kalispell to London Heathrow Airport

Our best Delta deals on Kalispell to London Heathrow Airport flight tickets
Delta
Nov 13
FCA5:25 amKalispell Glacier Park
20h 20m
2 stops
LHR8:45 amLondon Heathrow
Nov 19
LHR6:20 amLondon Heathrow
18h 25m
2 stops
FCA5:45 pmKalispell Glacier Park
$637
Find similar
Delta
Sep 19
FCA5:20 amKalispell Glacier Park
21h 30m
1 stop
LHR9:50 amLondon Heathrow
Sep 30
LHR6:50 pmLondon Heathrow
26h 02m
2 stops
FCA1:52 pmKalispell Glacier Park
$643
Find similar
Delta
Sep 19
FCA5:20 amKalispell Glacier Park
21h 30m
1 stop
LHR9:50 amLondon Heathrow
Sep 30
LHR4:05 pmLondon Heathrow
28h 47m
2 stops
FCA1:52 pmKalispell Glacier Park
$644
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 agosto 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

mar. 9/23

5:15 pm-12:20 pm

1 stop12h 05m

London Heathrow

mar. 9/30

5:40 pm-9:31 pm

2 stops34h 51m

$632

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

jue. 11/13

5:25 am-8:45 am

2 stops20h 20m

London Heathrow

mié. 11/19

6:20 am-5:45 pm

2 stops18h 25m

$637

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

vie. 9/19

5:20 am-9:50 am

1 stop21h 30m

London Heathrow

mar. 9/30

6:50 pm-1:52 pm

2 stops26h 02m

$643

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

vie. 9/19

5:20 am-9:50 am

1 stop21h 30m

London Heathrow

mar. 9/30

4:05 pm-1:52 pm

2 stops28h 47m

$644

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

mar. 9/23

5:15 pm-12:20 pm

1 stop12h 05m

London Heathrow

mar. 9/30

2:50 pm-9:31 pm

1 stop13h 41m

$649

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

mié. 9/24

4:09 pm-2:10 pm

1 stop15h 01m

London Heathrow

mié. 10/1

11:25 am-9:31 pm

1 stop17h 06m

$650

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

mié. 9/24

10:47 am-11:45 am

2 stops17h 58m

London Heathrow

mié. 10/1

9:30 am-9:31 pm

2 stops19h 01m

$654

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

jue. 9/25

2:31 pm-12:20 pm

1 stop14h 49m

London Heathrow

jue. 10/2

12:05 pm-4:08 pm

2 stops35h 03m

$683

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

sáb. 9/13

11:54 am-2:15 pm

2 stops19h 21m

London Heathrow

sáb. 9/20

9:40 am-11:13 pm

2 stops20h 33m

$694

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

mié. 10/1

4:22 pm-1:40 pm

1 stop14h 18m

London Heathrow

lun. 10/6

9:50 am-11:58 pm

1 stop21h 08m

$2,596

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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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 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 7% 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

Best Price Found

$528

Fastest flight time

12h 05m

Direct flights

None
The best one-way flight to London Heathrow Airport from Kalispell in the past 72 hours is $528. The best round-trip flight deal from Kalispell to London Heathrow Airport found on momondo in the last 72 hours is $632.
The fastest flight from Kalispell to London Heathrow Airport takes 12h 05m
There are no direct flights from Kalispell to London Heathrow Airport. Popular non-direct route for this connection is Kalispell Glacier Park Airport - 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 12h 05m.

  • 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 $680Free CancellationRating
7.4
8,920 reviews
Search United Airlines flights

Traveling to a place near London?

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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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