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$549+ Cheap flights from Kalispell (FCA) to London (LON)

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 6/19. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — LON
Feb 2 — Feb 91
Mon 2/2
Mon 2/9
1 adult, Economy
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Cheap flight deals from Kalispell to London

Cheapest flights from Kalispell to London
Explore the most affordable flight options available from Kalispell to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 3, 2026.

This Delta deal was found by Cheapflights users on 1/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/15:24 amFCA - LHR
2 stops22h 06mDelta
Sun 2/86:20 amLHR - FCA
2 stops23h 58mDelta
Deal found 1/3$642
This United Airlines deal was found by Cheapflights users on 1/1. 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.
Sun 3/17:00 amFCA - LHR
1 stop23h 30mUnited Airlines
Wed 3/181:00 pmLHR - FCA
2 stops38h 57mUnited Airlines
Deal found 1/1$644
This Delta deal was found by Cheapflights users on 1/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/152:49 pmFCA - LHR
1 stop15h 16mDelta
Thu 5/76:30 amLHR - FCA
2 stops23h 32mDelta
Deal found 1/3$646
This United Airlines deal was found by Cheapflights users on 1/3. 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 4/156:00 amFCA - LHR
1 stop20h 40mUnited Airlines
Wed 5/67:25 amLHR - FCA
2 stops21h 05mUnited Airlines
Deal found 1/3$647
This United Airlines deal was found by Cheapflights users on 1/3. 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.
Sat 4/182:33 pmFCA - LHR
2 stops32h 57mUnited Airlines
Wed 5/67:25 amLHR - FCA
2 stops21h 05mUnited Airlines
Deal found 1/3$650
This United Airlines deal was found by Cheapflights users on 1/2. 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
1 stop14h 47mUnited Airlines
Wed 5/132:05 pmLHR - FCA
2 stops38h 25mUnited Airlines
Deal found 1/2$655
This United Airlines deal was found by Cheapflights users on 1/1. 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
Wed 5/67:25 amLHR - FCA
2 stops37h 08mUnited Airlines
Deal found 1/1$656
This United Airlines deal was found by Cheapflights users on 1/3. 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 4/152:33 pmFCA - LHR
1 stop14h 47mUnited Airlines
Tue 5/54:25 pmLHR - FCA
2 stops36h 05mUnited Airlines
Deal found 1/3$657
This United Airlines deal was found by Cheapflights users on 12/31. 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 1/296:00 amFCA - LHR
1 stop20h 40mUnited Airlines
Mon 2/211:35 amLHR - FCA
1 stop17h 24mUnited Airlines
Deal found 12/31$658
This United Airlines deal was found by Cheapflights users on 1/3. 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.
Sat 4/182:33 pmFCA - LHR
2 stops32h 57mUnited Airlines
Tue 5/54:25 pmLHR - FCA
2 stops36h 05mUnited Airlines
Deal found 1/3$661
This Expedia deal was found by Cheapflights users on 1/1. 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.
Sun 5/106:35 amFCA - LGW
2 stops29h 15mMultiple Airlines
Mon 5/1810:20 amLGW - FCA
2 stops20h 38mMultiple Airlines
Deal found 1/1$933
This Expedia deal was found by Cheapflights users on 1/2. 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.
Sat 5/1611:12 amFCA - LGW
2 stops20h 28mMultiple Airlines
Thu 5/2810:20 amLGW - FCA
2 stops20h 38mMultiple Airlines
Deal found 1/2$993

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 January 3, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$642
(Delta)

One-way from

$549
(Kiwi.com)

Popular in

December

Cheapest in

May
Provider with most accurate pricing for Kalispell Glacier Park-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Kalispell Glacier Park-London (LON) flights.
Search Deals
From Kalispell Glacier Park to London (LON)
Search Deals
One-way flight from Kalispell Glacier Park to London (LON)
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($165 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($68 potential savings vs. average RT price).
Search Deals

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 January 3, 2026.
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

Tue 4/21

2:33 pm-12:20 pm

1 stop14h 47m

London Heathrow

Wed 5/6

7:25 am-9:30 pm

2 stops21h 05m

$647

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Sat 4/18

12:10 pm-6:20 am

2 stops35h 10m

London Heathrow

Thu 5/7

6:30 am-11:02 pm

2 stops23h 32m

$651

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 4/22

2:33 pm-12:20 pm

1 stop14h 47m

London Heathrow

Wed 5/13

2:05 pm-9:30 pm

2 stops38h 25m

$655

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 4/22

2:33 pm-7:40 pm

2 stops22h 07m

London Heathrow

Wed 5/6

7:25 am-1:33 pm

2 stops37h 08m

$656

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Sun 4/19

2:33 pm-9:40 am

1 stop12h 07m

London Heathrow

Tue 5/5

4:25 pm-9:30 pm

2 stops36h 05m

$657

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Thu 1/29

6:00 am-9:40 am

1 stop20h 40m

London Heathrow

Mon 2/2

11:35 am-9:59 pm

1 stop17h 24m

$658

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Sun 5/10

6:31 am-12:20 pm

1 stop22h 49m

London Heathrow

Mon 5/18

1:40 pm-9:30 pm

2 stops38h 50m

$658

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Sun 3/1

2:41 pm-9:40 am

1 stop11h 59m

London Heathrow

Wed 3/18

11:35 am-9:57 pm

1 stop16h 22m

$659

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Sat 4/18

2:33 pm-6:30 am

2 stops32h 57m

London Heathrow

Tue 5/5

4:25 pm-9:30 pm

2 stops36h 05m

$661

KalispellLondon

FCA - LGW

FCALGW

Kalispell Glacier Park

Sun 5/10

6:35 am-6:50 pm

2 stops29h 15m

London Gatwick

Mon 5/18

10:20 am-11:58 pm

2 stops20h 38m

$933

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/3

Showing 1-10 of 19 results
1
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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 January.
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 January 3, 2026.
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
9,138 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Food

6.6

Entertainment

7.1

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
9,138 reviews
United Airlines
7.4
Good
9,138 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Food

6.6

Entertainment

7.1

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 14h 47m. Kalispell and London are separated by a distance of 4512 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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. Users have found that Virgin Atlantic is 34% cheaper than the other options available to this destination.

  • 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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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 January 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest$707Average$1,046FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$733Average$851FlexibilityNo cancel feeOn-time69%

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