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Cheap flights from Kalispell to London Heathrow Airport from £456

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/1. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — LHR
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Kalispell to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Kalispell to Heathrow
Explore the most affordable flight options available from Kalispell to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 November 2025.

Wed 24/1213:45FCA - LHR
1 stop13h 15mDelta
Wed 25/206:20LHR - FCA
2 stops24h 21mDelta
Deal found 6/11£538
Wed 24/1212:38FCA - LHR
1 stop15h 37mUnited Airlines
Wed 25/213:45LHR - FCA
1 stop29h 09mUnited Airlines
Deal found 6/11£629

Cheap flight deals from Kalispell to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Kalispell (FCA) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 7 November 2025.

Round-trip from

£456

Popular in

December

Cheapest in

October

Average price

£612
Air France
  • Air France
  • 14/1-23/1
  • 3 total stops
  • 32h 39m total
  • Kalispell to London
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£91 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£38 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Kalispell to Heathrow 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, Cheapflights users made 858,174 searches. Data last updated 7 November 2025.
Use the filters below to find and compare flights from Kalispell to London Heathrow Airport that are best for you.

Fly from

Kalispell

Fly to

Heathrow

Route

Depart

Return

Price

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 14/1

12:15-10:00

1 stop14h 45m

London Heathrow

Fri 23/1

06:20-17:14

2 stops17h 54m

£456

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 14/1

05:05-08:45

2 stops20h 40m

London Heathrow

Fri 23/1

06:20-22:54

2 stops23h 34m

£460

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 24/12

13:45-10:00

1 stop13h 15m

London Heathrow

Wed 25/2

06:20-23:41

2 stops24h 21m

£538

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Fri 27/3

06:31-08:30

2 stops19h 59m

London Heathrow

Tue 31/3

15:50-21:30

2 stops36h 40m

£606

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 24/12

12:38-11:15

1 stop15h 37m

London Heathrow

Wed 25/2

13:45-11:54

1 stop29h 09m

£629

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Thu 23/4

15:00-13:10

1 stop15h 10m

London Heathrow

Mon 4/5

20:55-17:42

2 stops27h 47m

£657

Flights are sorted by cheapest return flights first.

Deals found on 5/11

Best time to book a flight from Kalispell to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Kalispell with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Kalispell to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Kalispell to London Heathrow?

    Located just 8.4 mi from the city center, Kalispell Glacier Park is the airport most travelers will use when flying to London Heathrow from Kalispell. Booking flights from Glacier Park (FCA) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 0 different airlines.

  • How long is the flight from Kalispell to London Heathrow Airport?

    There are many flights that can get you from Kalispell to London Heathrow Airport in 20h 40m. Fly via Delta to get the fastest option. The distance between Kalispell and London Heathrow Airport is about 4512 mi.

  • Can I find deals for flights from Kalispell to Heathrow that include hotel bookings?

    Yes. In addition to deals on Kalispell to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Kalispell to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kalispell to Heathrow.

  • Can I find deals for business class flights from Kalispell to Heathrow?

    Yes. Cheapflights offers flight deals from Kalispell to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Slough
Gatwick
Hounslow
Northampton
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Winchester
Swindon
Crawley
Brentford
Romford
Chichester
Ipswich

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Alternative routes for Kalispell to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Kalispell to Heathrow?

When you search for this flight from Kalispell to Heathrow, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Kalispell to Heathrow?

Cheapflights simply makes it quick and affordable to book flights from Kalispell to Heathrow by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Kalispell to Heathrow with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Kalispell to Heathrow, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Kalispell to Heathrow become cheaper?

Yes! Start tracking prices for Kalispell to Heathrow flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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