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Cheap flights from Kalispell to London from $355

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 2/9. 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
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
Fri, Jan 23 - Tue, Jan 27
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
$657United Airlines
Fri, Jan 23 - Tue, Jan 27
United Airlines Logo
6:00 am - 8:25 am
FCA
-
LHR
19h 25m2 stops
United Airlines Logo
7:25 am - 9:59 pm
LHR
-
FCA
21h 34m2 stops
$660United Airlines
Fri, Jan 23 - Tue, Jan 27
United Airlines Logo
6:00 am - 10:15 am
FCA
-
LHR
21h 15m2 stops
United Airlines Logo
11:35 am - 9:59 pm
LHR
-
FCA
17h 24m1 stop
$661United Airlines
Fri, Jan 23 - Tue, Jan 27
United Airlines Logo
6:31 am - 9:40 am
FCA
-
LHR
20h 09m1 stop
United Airlines Logo
7:30 am - 9:30 pm
LHR
-
FCA
21h 00m2 stops
$825United Airlines
Tue, Apr 7 - Thu, Apr 30
United Airlines Logo
6:31 am - 7:15 am
FCA
-
LHR
17h 44m2 stops
United Airlines Logo
7:30 am - 9:30 pm
LHR
-
FCA
21h 00m2 stops
$829United Airlines
Tue, Apr 7 - Thu, Apr 30
KLM Logo
12:10 pm - 9:50 am
FCA
-
LHR
14h 40m1 stop
KLM Logo
10:55 am - 5:42 pm
LHR
-
FCA
13h 47m1 stop
$842KLM
Tue, Apr 7 - Thu, Apr 30
KLM Logo
12:10 pm - 1:30 pm
FCA
-
LHR
18h 20m2 stops
KLM Logo
8:00 pm - 5:42 pm
LHR
-
FCA
28h 42m2 stops
$846KLM
Tue, Apr 7 - Thu, Apr 30
Multiple Airlines Logo
3:00 pm - 1:10 pm
FCA
-
LHR
15h 10m1 stop
Multiple Airlines Logo
7:45 pm - 5:42 pm
LHR
-
FCA
28h 57m2 stops
$883Multiple Airlines
Thu, Apr 23 - Mon, May 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
$888Multiple Airlines
Thu, Apr 23 - Mon, May 4

United Airlines flights from Kalispell to London

Our best United Airlines deals on Kalispell to London flight tickets
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
20h 40m
1 stop
LHR9:40 amLondon Heathrow
Jan 27
LHR11:35 amLondon Heathrow
17h 24m
1 stop
FCA9:59 pmKalispell Glacier Park
$657
Find similar
United Airlines
Jan 23
FCA1:40 pmKalispell Glacier Park
15h 20m
1 stop
LHR12:00 pmLondon Heathrow
Jan 27
LHR9:10 amLondon Heathrow
19h 49m
2 stops
FCA9:59 pmKalispell Glacier Park
$660
Find similar

KLM flights from Kalispell to London

Our best KLM deals on Kalispell to London flight tickets
KLM
Apr 7
FCA12:10 pmKalispell Glacier Park
14h 40m
1 stop
LHR9:50 amLondon Heathrow
Apr 30
LHR10:55 amLondon Heathrow
13h 47m
1 stop
FCA5:42 pmKalispell Glacier Park
$842
Find similar
KLM
Apr 7
FCA12:10 pmKalispell Glacier Park
18h 20m
2 stops
LHR1:30 pmLondon Heathrow
Apr 30
LHR8:00 pmLondon Heathrow
28h 42m
2 stops
FCA5:42 pmKalispell Glacier Park
$846
Find similar
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

momondo Fare Finder

 
Customize your flight search to find flights from Kalispell to London 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 December 15, 2025.
Use the filters below to find and compare flights from Kalispell to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Fri 1/23

6:00 am-9:40 am

1 stop20h 40m

London Heathrow

Tue 1/27

11:35 am-9:59 pm

1 stop17h 24m

$656

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Fri 1/23

6:00 am-9:40 am

1 stop20h 40m

London Heathrow

Tue 1/27

11:35 am-9:59 pm

1 stop17h 24m

$657

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Fri 1/23

6:00 am-8:25 am

2 stops19h 25m

London Heathrow

Tue 1/27

7:25 am-9:59 pm

2 stops21h 34m

$660

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Fri 1/23

6:00 am-10:15 am

2 stops21h 15m

London Heathrow

Tue 1/27

11:35 am-9:59 pm

1 stop17h 24m

$661

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Tue 4/7

6:31 am-9:40 am

1 stop20h 09m

London Heathrow

Thu 4/30

7:30 am-9:30 pm

2 stops21h 00m

$825

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Tue 4/7

6:31 am-7:15 am

2 stops17h 44m

London Heathrow

Thu 4/30

7:30 am-9:30 pm

2 stops21h 00m

$829

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Tue 4/7

12:10 pm-9:50 am

1 stop14h 40m

London Heathrow

Thu 4/30

10:55 am-5:42 pm

1 stop13h 47m

$842

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Tue 4/7

12:10 pm-1:30 pm

2 stops18h 20m

London Heathrow

Thu 4/30

8:00 pm-5:42 pm

2 stops28h 42m

$846

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Thu 4/23

3:00 pm-1:10 pm

1 stop15h 10m

London Heathrow

Mon 5/4

7:45 pm-5:42 pm

2 stops28h 57m

$883

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Thu 4/23

11:59 am-2:15 pm

2 stops19h 16m

London Heathrow

Mon 5/4

7:45 pm-5:42 pm

2 stops28h 57m

$888

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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

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?

The cheapest day to depart from Kalispell to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $691. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,179. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

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

Flying to London from Kalispell in the morning is the least expensive time of day to depart. momondo users have found prices as low as $780 when looking at flights departing in the morning. Flights to London are more costly at noon, with an average ticket price of $886. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on Kalispell to London flights?

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

When to book flights from Kalispell to London

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

Cheap Kalispell to London (FCA to LON) flight deals and tips

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

Fastest flight time

12h 11m

Direct flights

None
The fastest flight from Kalispell to London takes 12h 11m
There are no direct flights from Kalispell to London. There are no popular flight routes from Kalispell to London.
Search flight deals

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

    There are 4528.3 mi between Kalispell Glacier Park and London. In terms of flight time, this usually takes a little over 12h 11m.

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

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

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

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

    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.

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

    The required travel and health documents for your London 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. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Best airlines flying from Kalispell to London

Compare and see reviews for airlines that fly from Kalispell to London 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
9,092 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
Crawley
Brentwood
Wembley
Watford
Ilford
Cobham
Folkestone
Romford
Richmond
Uxbridge
Stansted

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. momondo enables you to select and highlight flights to London from Kalispell with this policy.

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

Once all potential Kalispell to London 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 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.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport