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Heathrow

$616+ Cheap flights from Kalispell (FCA) to Heathrow (LHR)

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 12/18. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — LHR
Aug 26 — Sep 21
Wed 8/26
Wed 9/2
1 adult, Economy
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Cheap flight deals from Kalispell to Heathrow

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 July 27, 2026.

This KLM deal was found by Cheapflights users on 7/25. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2812:35 pm
FCA
-
LHR
1 stop15h 25m
KLM
Wed 11/118:25 pm
LHR
-
FCA
2 stops28h 10m
KLM
Deal found 7/25$875
This United Airlines deal was found by Cheapflights users on 7/22. 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.
Tue 10/2010:45 am
FCA
-
LHR
1 stop15h 55m
United Airlines
Wed 11/46:35 am
LHR
-
FCA
2 stops22h 07m
United Airlines
Deal found 7/22$877
This Alaska Airlines deal was found by Cheapflights users on 7/26. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/92:05 pm
FCA
-
LHR
1 stop15h 15m
Alaska Airlines
Wed 11/112:45 pm
LHR
-
FCA
1 stop16h 14m
Alaska Airlines
Deal found 7/26$886
This Alaska Airlines deal was found by Cheapflights users on 7/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/262:03 pm
FCA
-
LHR
1 stop16h 17m
Alaska Airlines
Tue 11/102:45 pm
LHR
-
FCA
1 stop16h 14m
Alaska Airlines
Deal found 7/22$888
This Alaska Airlines deal was found by Cheapflights users on 7/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:34 pm
FCA
-
LHR
1 stop34h 46m
Alaska Airlines
Tue 11/172:45 pm
LHR
-
FCA
1 stop16h 14m
Alaska Airlines
Deal found 7/22$893
This Alaska Airlines deal was found by Cheapflights users on 7/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/317:45 pm
FCA
-
LHR
1 stop34h 35m
Alaska Airlines
Thu 11/192:45 pm
LHR
-
FCA
1 stop28h 36m
Alaska Airlines
Deal found 7/22$898
This KLM deal was found by Cheapflights users on 7/25. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2812:35 pm
FCA
-
LHR
1 stop15h 25m
KLM
Wed 11/45:50 pm
LHR
-
FCA
2 stops30h 39m
KLM
Deal found 7/25$903
This United Airlines deal was found by Cheapflights users on 7/26. 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.
Mon 11/96:14 am
FCA
-
LHR
2 stops19h 11m
United Airlines
Wed 11/1111:35 am
LHR
-
FCA
1 stop17h 16m
United Airlines
Deal found 7/26$909

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 July 27, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$875
(KLM)

One-way from

$616
(United Airlines)
Provider with most accurate pricing for Kalispell Glacier Park-London Heathrow flight deals.
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Provider most trusted by Cheapflights users for Kalispell Glacier Park-London Heathrow flights.
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From Kalispell Glacier Park to London Heathrow
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One-way flight from Kalispell Glacier Park to London Heathrow
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Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated July 27, 2026.
Use the filters below to find and compare flights from Kalispell to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 10/28

12:35 pm-10:00 am

1 stop15h 25m

London Heathrow

Wed 11/11

8:25 pm-5:35 pm

2 stops28h 10m

$875

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 1/20

11:59 am-10:00 am

1 stop15h 01m

London Heathrow

Wed 1/27

8:25 pm-5:45 pm

2 stops28h 20m

$884
Quickest round-trip

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Mon 11/9

2:05 pm-12:20 pm

1 stop15h 15m

London Heathrow

Wed 11/11

2:45 pm-11:59 pm

1 stop16h 14m

$886

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 10/28

12:35 pm-10:00 am

1 stop15h 25m

London Heathrow

Wed 11/4

5:50 pm-5:29 pm

2 stops30h 39m

$903

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Mon 11/9

6:14 am-8:25 am

2 stops19h 11m

London Heathrow

Wed 11/11

11:35 am-9:51 pm

1 stop17h 16m

$909
Cheapest one-way

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Fri 12/18

2:45 pm-11:20 am

2 stops37h 35m

$616

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Fri 12/18

2:08 pm-7:10 am

1 stop34h 02m

$730

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Fri 12/18

12:59 pm-11:50 am

3 stops39h 51m

$811
Quickest one-way

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Fri 12/18

2:08 pm-12:20 pm

1 stop15h 12m

$891

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/22

Sorted by cheapest first

Compare providers for flights from Kalispell to Heathrow

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 Heathrow in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
OvagoPrice 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 Heathrow Airport flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Kalispell-London Heathrow Airport flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from Kalispell-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Kalispell-London Heathrow Airport flights, Cheapflights users trust Ovago the most. Ovago 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 Heathrow Airport 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 Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow 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.

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated July 27, 2026.
Read reviews from past customers who have flown United Airlines from Kalispell to London Heathrow Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,041 reviews

Food

6.6

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this
United Airlines
7.4
Good
10,041 reviews
United Airlines
7.4
Good
10,041 reviews

Food

6.6

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this

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?

    Kalispell Glacier Park (FCA), located 8.4 mi from the city center, is the airport you fly out of when you book flights from Kalispell to London Heathrow. 1 airline have flights from Glacier Park to London Heathrow on a regular basis. Booking flights from Kalispell Glacier Park to London Heathrow should not be difficult; the airport handles an average of 0 outbound flights to London Heathrow per day.

  • How long is the flight from Kalispell to London Heathrow Airport?

    KLM and Alaska Airlines can get you from Kalispell to London Heathrow Airport in just under 15h 15m. Your travel time can differ by up to 10m. Airlines will cover a distance of 4512 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Flying on United Airlines is currently your cheapest option to London Heathrow Airport, with prices starting at $733.

  • 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 vacation 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

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Ilford
Dorking
Hounslow
Winchester
Croydon
Gatwick
Wembley
Harrow
Eastleigh
Southend-on-Sea
Watford
Northampton
Dartford
Chipping Norton
Kingston upon Thames
Eastbourne
Slough
Stansted
Sutton
Luton

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Alternative routes for Kalispell to Heathrow

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Top airline flying from Kalispell to Heathrow

Discover the top airline that operate flights from Kalispell to Heathrow. 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 July 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$733Average$924FlexibilityNo cancel feeOn-time69%

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