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$658+ Cheap flights from Kalispell (FCA) to London (LON)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — LON
Jan 28 — Feb 41
Wed 1/28
Wed 2/4
1 adult, Economy
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Cheap flight deals from Kalispell to London

Best flights from Kalispell to London
Discover carefully curated flight deals from Kalispell to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 29, 2025.

This United Airlines deal was found by Cheapflights users on 12/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/291:40 pmFCA - LHR
1 stop15h 20mUnited Airlines
Mon 2/211:35 amLHR - FCA
1 stop17h 24mUnited Airlines
Deal found 12/26$658
This Icelandair deal was found by Cheapflights users on 12/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2011:12 amFCA - LGW
2 stops17h 33mMultiple Airlines
Tue 5/261:00 pmLGW - FCA
2 stops17h 58mMultiple Airlines
Deal found 12/26$1,166
This United Airlines deal was found by Cheapflights users on 12/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/222:33 pmFCA - LHR
2 stops22h 07mUnited Airlines
Sat 5/27:25 amLHR - FCA
2 stops21h 05mUnited Airlines
Deal found 12/27$705
This United Airlines deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/232:33 pmFCA - LHR
1 stop12h 07mUnited Airlines
Mon 5/49:30 amLHR - FCA
2 stops43h 00mUnited Airlines
Deal found 12/29$728
This Expedia deal was found by Cheapflights users on 12/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/411:12 amFCA - LGW
2 stops24h 38mMultiple Airlines
Thu 6/1810:20 amLGW - FCA
2 stops20h 39mMultiple Airlines
Deal found 12/27$1,206
This Icelandair deal was found by Cheapflights users on 12/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/211:12 amFCA - LGW
2 stops20h 28mMultiple Airlines
Tue 6/91:00 pmLGW - FCA
2 stops17h 58mMultiple Airlines
Deal found 12/28$1,222

Find flight deals from Kalispell to London

Discover tips and strategies to find the most affordable flight options for your journey from Kalispell (FCA) to London (LON). 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 December 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$658
(United Airlines)
Provider with most accurate pricing for Kalispell Glacier Park-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Kalispell Glacier Park-London (LON) flights.
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From Kalispell Glacier Park to London (LON)
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Kalispell to London 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 2,558,603 searches. Data last updated December 29, 2025.
Use the filters below to find and compare flights from Kalispell to London that are best for you.

Fly from

Kalispell

Fly to

London

Route

Depart

Return

Price

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Thu 1/29

1:40 pm-12:00 pm

1 stop15h 20m

London Heathrow

Mon 2/2

11:35 am-9:59 pm

1 stop17h 24m

$658

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 4/22

2:33 pm-7:40 pm

2 stops22h 07m

London Heathrow

Sat 5/2

7:25 am-9:30 pm

2 stops21h 05m

$705

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Thu 4/23

2:33 pm-9:40 am

1 stop12h 07m

London Heathrow

Mon 5/4

9:30 am-9:30 pm

2 stops43h 00m

$728

KalispellLondon

FCA - LGW

FCALGW

Kalispell Glacier Park

Wed 5/20

11:12 am-11:45 am

2 stops17h 33m

London Gatwick

Tue 5/26

1:00 pm-11:58 pm

2 stops17h 58m

$1,166

KalispellLondon

FCA - LGW

FCALGW

Kalispell Glacier Park

Thu 6/4

11:12 am-6:50 pm

2 stops24h 38m

London Gatwick

Thu 6/18

10:20 am-11:59 pm

2 stops20h 39m

$1,206

KalispellLondon

FCA - LGW

FCALGW

Kalispell Glacier Park

Tue 6/2

11:12 am-2:40 pm

2 stops20h 28m

London Gatwick

Tue 6/9

1:00 pm-11:58 pm

2 stops17h 58m

$1,222

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

Compare providers for flights from Kalispell to London

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Kalispell to London in December.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Kalispell-London flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Kalispell-London flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Kalispell-London flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Kalispell-London flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Kalispell-London flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Kalispell to London

Have a flexible travel schedule? Discover the best time to fly to London from Kalispell with our price prediction graph.
Estimated round-trip 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
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated December 29, 2025.
Peruse reviews from past customers who have flown with United Airlines from Kalispell to London to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,120 reviews

Entertainment

7.1

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,120 reviews
United Airlines
7.4
Good
9,120 reviews

Entertainment

7.1

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

Related info for your journey

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

    Located just 8.4 mi from the city center, Kalispell Glacier Park is the airport most travelers will use when flying to London from Kalispell. Booking flights from Glacier Park (FCA) to London should be relatively easy as there are 0 daily outbound flights to London from 2 different airlines.

  • How long is the flight from Kalispell to London?

    Departing from Kalispell to London will take you 15h 20m. Kalispell and London are separated by a distance of 4512 mi.

  • What are the cheapest airlines flying from Kalispell to London round-trip?

    Flying on Virgin Atlantic is currently your cheapest option to London, with prices starting at $707. Another option worth looking into is United Airlines, starting at $733 round trip.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Kalispell to London 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

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
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Southend-on-Sea
Harrow
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Top 2 airlines flying from Kalispell to London

Discover the top 2 airlines that operate flights from Kalispell to London. 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 2,558,603 searches. Data last updated December 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest$707Average$1,046FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$733Average$851FlexibilityNo cancel feeOn-time69%

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