FCA - LHR

$642 Find Cheap Flights from Kalispell to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Kalispell to Heathrow departing on 5/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Kalispell to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Kalispell to London, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$875
KLM
Mon 11/2Tue 12/8
FCA - LHR • 1 stop
Cheapest one-way
$642
Alaska Airlines
Sun 5/24
FCA - LHR • 1 stop
Top airlines
KLM
Cheapest • from $875 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Kalispell and Heathrow. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Salt Lake City (SLC)
Cheapest • Avg $604 (round-trip)
Chicago (ORD)
Shortest trip • 12h 22m (one-way)
Insights
Insights
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Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Heathrow!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Kalispell to Heathrow (FCA-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Kalispell to Heathrow that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Kalispell to Heathrow

Mon, Nov 2 - Tue, Dec 8
KLM Logo
5:25 am - 10:00 am
FCA
-
LHR
21h 35m
1 stop
KLM Logo
8:25 pm - 5:45 pm
LHR
-
FCA
28h 20m
2 stops
$875KLM
Wed, Aug 19 - Wed, Aug 26
Delta Logo
3:14 pm - 1:05 pm
FCA
-
LHR
14h 51m
1 stop
Delta Logo
6:30 am - 11:51 pm
LHR
-
FCA
24h 21m
2 stops
$876Delta
Wed, Sep 2 - Thu, Sep 10
Delta Logo
5:25 am - 10:00 am
FCA
-
LHR
21h 35m
1 stop
Delta Logo
6:30 am - 11:46 pm
LHR
-
FCA
24h 16m
2 stops
$877Delta
Wed, Aug 19 - Wed, Aug 26
Delta Logo
3:14 pm - 1:05 pm
FCA
-
LHR
14h 51m
1 stop
Delta Logo
6:30 am - 11:51 pm
LHR
-
FCA
24h 21m
2 stops
$878Delta
Wed, Aug 19 - Wed, Aug 26
Delta Logo
6:20 am - 7:10 am
FCA
-
LHR
17h 50m
2 stops
Delta Logo
6:30 am - 11:51 pm
LHR
-
FCA
24h 21m
2 stops
$880Delta
Sun, Nov 1 - Tue, Dec 8
United Airlines Logo
2:29 pm - 9:40 am
FCA
-
LHR
12h 11m
1 stop
United Airlines Logo
11:10 am - 1:33 pm
LHR
-
FCA
33h 23m
2 stops
$881United Airlines
Tue, Sep 1 - Thu, Sep 10
Delta Logo
6:59 am - 11:20 am
FCA
-
LHR
21h 21m
2 stops
Delta Logo
8:40 am - 11:46 pm
LHR
-
FCA
22h 06m
2 stops
$882Delta
Mon, Sep 7 - Wed, Sep 16
Delta Logo
6:59 am - 1:05 pm
FCA
-
LHR
23h 06m
1 stop
Delta Logo
8:40 am - 11:46 pm
LHR
-
FCA
22h 06m
2 stops
$883Delta
Sun, Nov 1 - Tue, Dec 8
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
$884KLM
Sun, Nov 1 - Wed, Dec 9
United Airlines Logo
6:31 am - 9:40 am
FCA
-
LHR
20h 09m
1 stop
United Airlines Logo
7:30 am - 9:30 pm
LHR
-
FCA
21h 00m
2 stops
$886United Airlines
Booking Insights

KAYAK's insights & trends for Kalispell to Heathrow flights

Get data-powered insights and trends into flights from Kalispell to Heathrow to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Kalispell to London Heathrow Airport?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Kalispell to London Heathrow Airport were found on KLM ($875) and Delta ($876).

Find deals

Good to know

Cheapest flight$642
Flight from Kalispell to London Heathrow Airport

When to book flights from Kalispell to Heathrow

Are your dates flexible? Find out the best times to travel from Kalispell to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Kalispell to London Heathrow Airport flights

  • What is the cheapest flight from Kalispell to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Kalispell to London Heathrow Airport was $642 for a one-way ticket and $875 for a round-trip.

  • Do I need a passport to fly between Kalispell and London Heathrow Airport?

    A passport is required to fly from Kalispell to London Heathrow Airport.

  • Which airports will I be using when flying from Kalispell to London Heathrow Airport?

    When flying out of Kalispell you will be using Kalispell Glacier Park. You will be landing at London Heathrow Airport, also known as London Heathrow.

  • Which aircraft models fly most regularly from Kalispell to London Heathrow Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Kalispell to London Heathrow Airport?

    Star Alliance is the only airline alliance operating flights between Kalispell and London Heathrow Airport.

  • How does KAYAK find such low prices on flights from Kalispell to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Kalispell to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Kalispell to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Kalispell is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Kalispell to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London Heathrow Airport with an airline and back to Kalispell with another airline. Booking your flights between Kalispell and LHR can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Kalispell to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Kalispell up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Kalispell to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Kalispell to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Kalispell to Heathrow? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9737 reviews
6.6Food
7.7Boarding
7.3Comfort
7.1Entertainment
8.1Crew
Airline reviews

Late plane. Only one crew on the ground so we b had to wait for Denver flight to come in, board, and depart. At 78 yrs of age I was not pleased trying to get my connection. What really made me angry was the notification you sent me to hurry up or I would miss my connection. Why tell me to hurry up when you got me in late. It was not a good way of treating customers.

6.0 Goodrsillman, May 2026
ACV - SFO
Read more United Airlines reviews

Late plane. Only one crew on the ground so we b had to wait for Denver flight to come in, board, and depart. At 78 yrs of age I was not pleased trying to get my connection. What really made me angry was the notification you sent me to hurry up or I would miss my connection. Why tell me to hurry up when you got me in late. It was not a good way of treating customers.

No complaints other than luggage carousel was incorrectly guiding passengers to the wrong carousel on the screen.

Did not like that we couldn't complete check in on-line without providing pictures of our passports. Worry about identity theft. We had no delays and boarding was handled In an efficient manner.

We were a little disappointed to not be able to complete check in online without uploading pics of passports. Also we have KTN's and they weren't on our boarding passes when we got to security. Had to trek back to counter to have them fix.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

My flight time was changed without any notification to me which ruined my time sensitive plans so I ended up completely changing my travel plans and no reimbursement.

Excellent! I got to Munich and was transferred to my Lufthansa flight quickly, in 15 to 20 minutes, so I did not miss my flight. However, I had checked my overhead bag at the boarding gate in Tampa. That got to Tunis the next day. That is to be expected.

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

WiFi didn’t exist , seats were super cramped, lights stayed on near my seat for a long time while others were dimmed, the food/trash/drink cart hit my shoulder at least a couple of times while moving, food options were down to just one option by the time it got to my row, the utensils were garbage (knife bent at a couple of places by the time I was done eating) the spoon was very flimsy plastic

Friendliest Flight Attendant I’ve seen since I flew on Southwest Airlines. The whole trip was outstanding…and arrived Early!

Everything you need to know for your flight from Kalispell to Heathrow

Information on your arrival and departure airports

Kalispell (FCA)
Heathrow (LHR)