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Cheap Flights from Kalispell (FCA) to London Heathrow (LHR)

Compare Kalispell to London Heathrow flight deals

Find the cheapest month or even day of the year to fly to London Heathrow

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Flight deals from Kalispell Airport to London Heathrow Airport

Looking for a cheap last-minute deal or the best return flight from Kalispell Airport to London Heathrow Airport? If you want to travel next month, return fares start from £669. Find the lowest prices on one-way and return tickets right here.
London.£669 per passenger.Departing Tue, 14 Apr, returning Fri, 24 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from Kalispell on Tue, 14 Apr, arriving in London Heathrow.Inbound indirect flight with Delta, departs from London Heathrow on Fri, 24 Apr, arriving in Kalispell.Price includes taxes and charges.From £669, select.
London.£673 per passenger.Departing Wed, 5 Aug, returning Wed, 19 Aug.Return flight with Virgin Atlantic.Outbound indirect flight with Virgin Atlantic, departs from Kalispell on Wed, 5 Aug, arriving in London Heathrow.Inbound indirect flight with Virgin Atlantic, departs from London Heathrow on Wed, 19 Aug, arriving in Kalispell.Price includes taxes and charges.From £673, select.
London.£674 per passenger.Departing Tue, 12 May, returning Wed, 3 Jun.Return flight with United.Outbound indirect flight with United, departs from Kalispell on Tue, 12 May, arriving in London Heathrow.Inbound indirect flight with United, departs from London Heathrow on Wed, 3 Jun, arriving in Kalispell.Price includes taxes and charges.From £674, select.
London.£674 per passenger.Departing Wed, 6 May, returning Wed, 27 May.Return flight with United.Outbound indirect flight with United, departs from Kalispell on Wed, 6 May, arriving in London Heathrow.Inbound indirect flight with United, departs from London Heathrow on Wed, 27 May, arriving in Kalispell.Price includes taxes and charges.From £674, select.
London.£739 per passenger.Departing Sun, 12 Jul, returning Mon, 17 Aug.Return flight with American Airlines.Outbound indirect flight with American Airlines, departs from Kalispell on Sun, 12 Jul, arriving in London Heathrow.Inbound indirect flight with American Airlines, departs from London Heathrow on Mon, 17 Aug, arriving in Kalispell.Price includes taxes and charges.From £739, select.
London.£1,137 per passenger.Departing Wed, 1 Jul, returning Sun, 12 Jul.Return flight with Delta.Outbound indirect flight with Delta, departs from Kalispell on Wed, 1 Jul, arriving in London Heathrow.Inbound indirect flight with Delta, departs from London Heathrow on Sun, 12 Jul, arriving in Kalispell.Price includes taxes and charges.From £1,137, select.
London.£1,160 per passenger.Departing Fri, 20 Mar, returning Mon, 30 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from Kalispell on Fri, 20 Mar, arriving in London Heathrow.Inbound indirect flight with Delta, departs from London Heathrow on Mon, 30 Mar, arriving in Kalispell.Price includes taxes and charges.From £1,160, select.

Find the cheapest month to fly from Kalispell to London Heathrow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Kalispell to London Heathrow flights are currently cheapest in April.
Mar
from £1,160
Apr
from £669
May
from £674
Jun
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Jul
from £1,137
Aug
from £673
Sep
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Oct
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Nov
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Dec
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Jan
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Feb
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Kalispell to London Heathrow: Alternative routes

Compare routes from Kalispell to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Heathrow.

London City

8 miles from central London
Closest
from £766
Search flights

London Heathrow

14 miles from central London
from £669
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London Gatwick

25 miles from central London
from £675
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London Luton

28 miles from central London
from £742
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London Stansted

30 miles from central London
Cheapest
from £627
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London Southend

36 miles from central London
Search flights

Kalispell to London: Flight information

The things to know before you go.
Cheapest flight found£669
Cheapest month to flyApril

Finding cheap flights from Kalispell to London Heathrow: Frequently asked questions

The best price we found for a return flight from Kalispell to London Heathrow is £669. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Kalispell to London Heathrow. But we found flights with one or more stops from £669.
As of March 2026, there are no flights flying from Kalispell to London Heathrow.
The cheapest month to fly from Kalispell to London Heathrow is usually April.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Kalispell Airport to London Heathrow Airport on Tuesday, 14 April 2026.
No airlines currently offer direct flights between Kalispell Airport and London Heathrow Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Delta offers the cheapest flight tickets to London Heathrow.

How to find cheap flights to London (LHR) from Kalispell (FCA) in 2026

Looking for cheap tickets from Kalispell to London Heathrow? Return tickets start from £669 and one-way flights to London Heathrow from Kalispell start from £388


Here are a few tips on how to secure the best flight price and make your journey as smooth as possible.

  • Simply hit 'search'. From British Airways to international carriers like Emirates, we compare all major airlines along with the most popular online travel agents to find the cheapest plane tickets from Kalispell to London Heathrow. And with us there are no hidden fees - what you see is what you pay.
  • Compare flight deals to London from Kalispell from over 1,000 providers. Then choose the cheapest or fastest plane tickets. Flight tickets to London start from £388 one-way.
  • Flex your dates to find the best FCA-LHR ticket prices. If you are flexible when it comes to your travel dates, use Skyscanner's 'Whole month' tool to find the cheapest month, and even day to fly to London Heathrow from Kalispell.
  • Set up a Price Alert. You can easily track the fare of your cheap Kalispell-London Heathrow flights by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible flight deal.
  • Flexible on when you travel? The cheapest month to fly from Kalispell to London Heathrow is April.
  • Fly without stops. Only interested in direct flights between Kalispell and London Heathrow? Make sure to tick 'Direct flights only' when performing a search. If there are direct flights available on the route, these will appear in the results.
  • Find the cheapest Business class flights from Kalispell and London Heathrow. We scour the internet for the best Business, Premium Economy and First Class flight fares to London, too. Check the difference in price as you search – you might just chance upon a last-minute low fare. Note that not all cabin classes are available for every destination or airline.
  • Include nearby airports in your search. Widen your search for Kalispell to London Heathrow flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save next time you travel.
  • Search for cheap flights regardless of where you are. To get the best flight booking experience when out and about, download the app and search for plane tickets between Kalispell and London Heathrow whenever you want.

Combine your flight to London Heathrow from Kalispell with hotels and car hire

Once you've secured your cheap flight ticket from Kalispell to London Heathrow, discover the best prices and exclusive rates for hotels in London or nearby. You can also compare hundreds of car hire companies in one go so that you get the best car hire price for your trip.


Plan the rest of your trip from Kalispell to London

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.