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Cheap flights from London to Kalispell from £431

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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
LON — FCA
20 Aug — 27 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Kalispell

Enter your travel dates to find the best prices.

Cheapest flights from London to Kalispell
Explore the most affordable flight options available from London to Kalispell. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 July 2026.

Sat 31/1014:45
LHR
-
FCA
1 stop34h 09m
Alaska Airlines
Mon 2/1118:34
FCA
-
LHR
1 stop34h 46m
Alaska Airlines
Deal found 20/7£793
Fri 18/914:10
LHR
-
FCA
2 stops32h 11m
United Airlines
Mon 21/910:45
FCA
-
LHR
2 stops16h 55m
United Airlines
Deal found 16/7£920
Sat 31/1011:35
LHR
-
FCA
1 stop16h 07m
United Airlines
Mon 2/1114:29
FCA
-
LHR
2 stops34h 11m
United Airlines
Deal found 20/7£976

Find flight deals from London to Kalispell

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Kalispell (FCA). 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 21 July 2026.

Round-trip from

£793

One-way from

£431
Alaska Airlines
  • Alaska Airlines
  • 31/10-2/11
  • 2 total stops
  • 68h 55m total
  • London to Kalispell
Search Deals
8/10
  • 8/10
  • 3 total stops
  • 36h 11m total
  • London to Kalispell
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Kalispell 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 21 July 2026.
Use the filters below to find and compare flights from London to Kalispell that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonKalispell

LHR - FCA

LHRFCA

London Heathrow

Sat 31/10

14:45-18:54

1 stop34h 09m

Kalispell Glacier Park

Mon 2/11

18:34-12:20

1 stop34h 46m

£793
Fastest return journey

LondonKalispell

LHR - FCA

LHRFCA

London Heathrow

Fri 18/9

14:10-15:21

2 stops32h 11m

Kalispell Glacier Park

Mon 21/9

10:45-10:40

2 stops16h 55m

£920

LondonKalispell

LHR - FCA

LHRFCA

London Heathrow

Sat 31/10

11:35-21:42

1 stop16h 07m

Kalispell Glacier Park

Mon 2/11

14:29-07:40

2 stops34h 11m

£976
Cheapest one-way

LondonKalispell

LHR - FCA

LHRFCA

London Heathrow

Tue 1/12

12:15-09:28

3 stops52h 13m

£462

LondonKalispell

LHR - FCA

LHRFCA

London Heathrow

Tue 13/10

13:05-22:59

2 stops16h 54m

£477
Fastest single journey

LondonKalispell

LHR - FCA

LHRFCA

London Heathrow

Wed 7/10

17:00-22:59

1 stop12h 59m

£515

LondonKalispell

LHR - FCA

LHRFCA

London Heathrow

Tue 1/12

14:45-23:59

1 stop16h 14m

£516

LondonKalispell

LHR - FCA

LHRFCA

London Heathrow

Mon 7/12

06:20-23:07

2 stops23h 47m

£542

LondonKalispell

LHR - FCA

LHRFCA

London Heathrow

Fri 9/10

17:00-22:59

1 stop12h 59m

£557

LondonKalispell

LHR - FCA

LHRFCA

London Heathrow

Thu 1/10

17:00-12:20

1 stop26h 20m

£559

Flights are sorted by cheapest return flights first.

Deals found on 20/7

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

Best time to book a flight from London to Kalispell

Have a flexible travel schedule? Discover the best time to fly to Kalispell from London 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 London to Kalispell

What’s the top stopover airport for flights from London to Kalispell?

Share of one-stop return flights from London to Kalispell chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Seattle (SEA) – chosen by Cheapflights users on 42% of one-stop itineraries from London to Kalispell on Cheapflights.

What’s the cheapest stopover airport for flights from London to Kalispell?

Average return fare for one-stop flights from London to Kalispell, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Salt Lake City (SLC) is the most affordable one-stop option, with an average return flight price of £752.

What’s the fastest stopover option from London to Kalispell?

Shortest average travel time for one-stop one-way flights from London to Kalispell, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Denver (DEN) have the shortest average one-way travel time for one-stop routes: 13h 40m.

Which airport typically offers the quickest stopover for flights from London to Kalispell?

Average stopover duration for one-stop one-way flights from London to Kalispell, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Denver (DEN) offer the fastest connection on this route, with an average stopover time of 1h 20m.

Related info for your journey

Find useful and relevant information for your journey from London to Kalispell. 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 into for flights to Kalispell from London?

    Most people fly into Kalispell Glacier Park (FCA) if they book a flight to Kalispell from London. On average, Glacier Park has 0 inbound flights from London per day from 1 airline. Kalispell Glacier Park is conveniently located just 8.4 mi from Kalispell’s city center.

  • How long is the flight from London to Kalispell?

    Alaska Airlines and United Airlines can get you from London to Kalispell in just under 32h 11m. Your travel time can differ by up to 1h 58m. The distance from London to Kalispell is about 4512 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What is the cheapest airline to fly from London to Kalispell round-trip?

    Cheapflights users have booked flights from London to Kalispell round-trip from £720.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London to Kalispell 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from London to Kalispell

Discover the top airline that operate flights from London to Kalispell. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 21 July 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£720Average£808FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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

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

Millions of users choose and trust Cheapflights to book the best flight deals from London to Kalispell for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Need flexible booking options for your flight to Kalispell from London? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Not ready to book yet? You can track prices for flights from London to Kalispell on Cheapflights with our Price Alert feature and get notified when better prices are available.

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