Find flights
When to book
FAQs

Cheap flights from Kalispell to London Heathrow Airport from £283

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 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — LHR
22 Nov — 29 Nov1
1 adult
1 adult, Economy

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 23 October 2025.

Sun 7/1218:06FCA - LHR
1 stop32h 54mDelta
Sun 14/1211:45LHR - FCA
2 stops42h 25mDelta
Deal found 21/10£466
Sun 7/1206:30FCA - LHR
2 stops17h 20mMultiple Airlines
Sun 14/1211:45LHR - FCA
2 stops19h 13mMultiple Airlines
Deal found 23/10£512
Fri 12/1206:15FCA - LHR
1 stop20h 25mUnited Airlines
Thu 8/118:00LHR - FCA
2 stops49h 03mUnited Airlines
Deal found 23/10£588
Fri 12/1205:00FCA - LHR
1 stop22h 00mDelta
Thu 8/110:45LHR - FCA
1 stop14h 01mDelta
Deal found 23/10£601
Fri 26/1212:38FCA - LHR
2 stops35h 02mUnited Airlines
Thu 8/118:00LHR - FCA
2 stops49h 03mUnited Airlines
Deal found 21/10£744

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 23 October 2025.

Round-trip from

£466

One-way from

£283

Popular in

December

Cheapest in

October

Average price

£599
Delta
  • Delta
  • 7/12-14/12
  • 3 total stops
  • 75h 19m total
  • Kalispell to London
Search Deals
6/12
  • 6/12
  • 2 total stops
  • 15h 50m total
  • Kalispell to London
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£87 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£36 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 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 23 October 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

Sun 7/12

18:06-10:00

1 stop32h 54m

London Heathrow

Sun 14/12

11:45-23:10

2 stops42h 25m

£466

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Sat 10/1

13:40-07:25

1 stop34h 45m

London Heathrow

Mon 19/1

11:10-21:59

2 stops41h 49m

£471

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Tue 27/1

11:59-10:00

1 stop15h 01m

London Heathrow

Sun 22/2

20:25-17:46

2 stops28h 21m

£472

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Sun 7/12

06:30-08:35

2 stops19h 05m

London Heathrow

Sun 14/12

11:45-23:58

2 stops19h 13m

£512

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Sat 6/12

14:00-12:50

2 stops15h 50m

£283

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Sat 6/12

14:37-09:40

1 stop12h 03m

£329

Flights are sorted by cheapest return flights first.

Deals found on 22/10

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 15h 01m. Fly via Delta, United Airlines, or KLM to get the fastest option. The distance between Kalispell and London Heathrow Airport is about 4512 mi. This flight may include one or multiple stops.

  • 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
Wembley
Ilford
Deal
Hayes
Colchester
Watford
Crawley
Winchester
Swindon
Chichester
Romford
Ipswich
Bedford

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Kalispell to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Bozeman to Heathrow flights
Missoula to Heathrow flights
Billings to Heathrow flights
Great Falls to Heathrow flights
Missoula to Gatwick flights

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.