FCA - LHR

$376 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 8/8. 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
$903
Typical prices: $805-$746
American Airlines
Tue 9/29Wed 10/14
FCA - LHR • 1 stop
Cheapest one-way
$376
United Airlines
Sat 8/8
FCA - LHR • 1 stop
Top airlines
American Airlines
Cheapest • from $908 (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
Denver (DEN)
Cheapest • Avg $1,758 (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

Tue, Sep 29 - Wed, Oct 14
Multiple Airlines Logo
1:25 pm - 12:15 pm
FCA
-
LHR
15h 50m
1 stop
Multiple Airlines Logo
9:50 am - 11:59 pm
LHR
-
FCA
21h 09m
1 stop
$903Multiple Airlines
Tue, Sep 29 - Fri, Oct 16
Multiple Airlines Logo
12:35 pm - 12:50 pm
FCA
-
LHR
17h 15m
1 stop
Multiple Airlines Logo
9:50 am - 11:59 pm
LHR
-
FCA
21h 09m
1 stop
$904Multiple Airlines
Tue, Sep 29 - Wed, Oct 14
Multiple Airlines Logo
3:29 pm - 12:50 pm
FCA
-
LHR
14h 21m
1 stop
Multiple Airlines Logo
11:10 am - 11:59 pm
LHR
-
FCA
19h 49m
2 stops
$907Multiple Airlines
Wed, Aug 19 - Wed, Aug 26
American Airlines Logo
3:29 pm - 2:25 pm
FCA
-
LHR
15h 56m
1 stop
American Airlines Logo
4:25 pm - 11:37 am
LHR
-
FCA
26h 12m
1 stop
$908American Airlines
Tue, Sep 29 - Wed, Oct 14
Multiple Airlines Logo
12:35 pm - 12:50 pm
FCA
-
LHR
17h 15m
1 stop
Multiple Airlines Logo
11:10 am - 11:59 pm
LHR
-
FCA
19h 49m
2 stops
$909Multiple Airlines
Wed, Aug 19 - Wed, Aug 26
Multiple Airlines Logo
3:29 pm - 12:10 pm
FCA
-
LHR
13h 41m
1 stop
Multiple Airlines Logo
10:45 am - 10:56 pm
LHR
-
FCA
19h 11m
2 stops
$910Multiple Airlines
Tue, Apr 28 - Tue, May 5
United Airlines Logo
2:33 pm - 9:40 am
FCA
-
LHR
12h 07m
1 stop
United Airlines Logo
7:25 am - 1:31 pm
LHR
-
FCA
37h 06m
2 stops
$940United Airlines
Tue, Sep 29 - Fri, Oct 16
Multiple Airlines Logo
3:29 pm - 12:50 pm
FCA
-
LHR
14h 21m
1 stop
Multiple Airlines Logo
12:15 pm - 11:59 pm
LHR
-
FCA
18h 44m
2 stops
$941Multiple Airlines
Tue, Apr 28 - Tue, May 5
United Airlines Logo
6:00 am - 10:40 am
FCA
-
LHR
21h 40m
2 stops
United Airlines Logo
10:50 am - 1:31 pm
LHR
-
FCA
33h 41m
2 stops
$945United Airlines
Mon, May 4 - Wed, May 13
United Airlines Logo
2:33 pm - 12:25 pm
FCA
-
LHR
14h 52m
1 stop
United Airlines Logo
2:50 pm - 9:57 pm
LHR
-
FCA
14h 07m
1 stop
$962United 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.

How much is a round-trip flight from Kalispell to London Heathrow Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Kalispell to London Heathrow Airport departing in September.
Find deals

Good to know

Cheapest flight$376
Most popular time to fly and prices are also 12% lower on average.
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 $376 for a one-way ticket and $908 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 9533 reviews
6.6Food
8.1Crew
7.7Boarding
7.1Entertainment
7.3Comfort
Airline reviews

Fine. The issues I had were associated with luggage being delayed from Turkey to Tanzania

2.0 MediocreAnonymous, Apr 2026
SAT - IAH
Read more United Airlines reviews

Fine. The issues I had were associated with luggage being delayed from Turkey to Tanzania

No meal service to the back of the plane as it started late or was too slow to get it out before it was time to land.

Terrible, if possible won't be flying again anytime soon!

Efficient boarding and early departure. Very smooth flight. Early arrival in ATL. Great flight.

We purchase first class seats for the first time for multiples of standard economy ticket. There was no access to the club lounge and no priority boarding. The meal and the service once on the plane were superior and the seat was nicer, but not worth the price difference. I will be happy to seat in economy and spend the difference on more travel.

The business class seat is exceptional. I wish the food is more palatable.

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

the entire flight felt off. The crew seemed uninterested and disengaged. The food service was really bad - overcooked, bland, weird food service. They actually woke us up to serve chicken wraps in the middle of the night, after dinner and before breakfast. Made no sense. Ultimately, I was glad they did though, because the breakfast had been held for so long it was inedible. Eggs, potatoes, sausage - all disgusting. We were asked to "honor" the lavatories for premium customers and stay in our own cabin: this was also strange. So people in economy didn't pay enough to use the closest toilet to them??? It's a toilet. All in all, not the experience I have come to expect from United Airlines. The return flight from Paris to SFO was better, btw.

Smooth and easy boarding, comfortable for the entire 5 hour flight, and the seat back entertainment was great! I appreciated all the features, from location info and maps, movies, the ability to connect with Bluetooth headphones, and good selection of movies. Food was good, normal airline snacks (I didn’t purchase anything)

Overall, the flight was good. Lounge access should be with all business class tickets.

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

Information on your arrival and departure airports

Kalispell (FCA)
Heathrow (LHR)