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Cheap flights from Kalispell to London Heathrow Airport from £298

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/1. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — LHR
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Kalispell to Heathrow

Enter your travel dates to find the best prices.

Best flights from Kalispell to Heathrow
Discover carefully curated flight deals from Kalispell to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 December 2025.

Fri 23/113:40FCA - LHR
1 stop15h 20mUnited Airlines
Tue 27/111:35LHR - FCA
1 stop17h 24mUnited Airlines
Deal found 9/12£490
Thu 23/415:00FCA - LHR
1 stop15h 10mMultiple Airlines
Mon 4/519:45LHR - FCA
2 stops28h 57mMultiple Airlines
Deal found 10/12£659
Thu 23/405:25FCA - LHR
2 stops20h 30mDelta
Mon 4/517:35LHR - FCA
2 stops31h 07mDelta
Deal found 10/12£684
Fri 1/506:31FCA - LHR
1 stop22h 49mUnited Airlines
Mon 11/510:50LHR - FCA
2 stops41h 40mUnited Airlines
Deal found 9/12£652

Find 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 12 December 2025.

Round-trip from

£481

One-way from

£298

Popular in

May

Cheapest in

January

Average price

£715
United Airlines
  • United Airlines
  • 4/2-14/2
  • 4 total stops
  • 108h 22m total
  • Kalispell to London
Search Deals
United Airlines
  • United Airlines
  • 13/1
  • 1 total stop
  • 20h 40m total
  • Kalispell to London
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£135 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£38 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 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 12 December 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

Fri 23/1

13:40-12:00

1 stop15h 20m

London Heathrow

Tue 27/1

11:35-21:59

1 stop17h 24m

£490

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Fri 1/5

06:31-12:20

1 stop22h 49m

London Heathrow

Mon 11/5

10:50-21:30

2 stops41h 40m

£652

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Thu 23/4

15:00-13:10

1 stop15h 10m

London Heathrow

Mon 4/5

19:45-17:42

2 stops28h 57m

£659

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Thu 23/4

05:25-08:55

2 stops20h 30m

London Heathrow

Mon 4/5

17:35-17:42

2 stops31h 07m

£684

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Tue 13/1

06:00-06:40

2 stops17h 40m

£298

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 4/2

14:42-21:20

2 stops23h 38m

£302

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 4/2

12:25-10:00

1 stop14h 35m

£313

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Tue 13/1

06:25-14:25

3 stops25h 00m

£319

Flights are sorted by cheapest return flights first.

Deals found on 11/12

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.

Cheapflights Insights

Everything you need to know about your flight from Kalispell to London Heathrow Airport

How much does it cost for a return flight from Kalispell to London Heathrow Airport?

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 15h 20m. Fly via United Airlines 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
Northampton
Hounslow
Luton
Gatwick
Wembley
Ilford
Brentford
Colchester
Watford
Hayes
Crawley
Winchester
Swindon
Deal
Bedford
Romford
Chichester

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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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