How long is the flight from Kalispell to London?

Departing from Kalispell to London will take you 15h 10m. 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 is the cheapest airline to fly from Kalispell to London round-trip?

Flying on United Airlines is currently your cheapest option to London, with prices starting at $733. Users have found that United Airlines is 30% cheaper than the other options available to this destination.

In terms of precipitation, rainfall in London ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London when rainfall is around 1.6 in.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

What is the cheapest time of day to fly from FCA to LON?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Kalispell to London as you normally would.

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.

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 1 airline.

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.

$811+ Flights from Kalispell to London

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1. Tell us where you want to go

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2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Kalispell to London

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$810 (Delta)
Popular in	December
Cheapest in	October
Average price	$801

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

Highest demand for flights based on searches. 12% potential increase in price ($157 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease ($64 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in November 2025

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Find 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 November 19, 2025.

Fri 12/55:00 amFCA - LHR

1 stop22h 00mDelta

Tue 12/98:40 amLHR - FCA

2 stops39h 45mDelta

Deal found 11/18

$819

Fri 12/56:15 amFCA - LHR

1 stop20h 25mUnited Airlines

Tue 12/911:35 amLHR - FCA

1 stop17h 11mUnited Airlines

Deal found 11/18

$847

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 November 19, 2025.

Mon 4/133:00 pmFCA - LHR

1 stop15h 10mKLM

Wed 4/2211:45 amLHR - FCA

2 stops18h 17mKLM

Deal found 11/19

$811

Fri 12/55:00 amFCA - LHR

1 stop22h 00mDelta

Tue 12/98:40 amLHR - FCA

2 stops39h 45mDelta

Deal found 11/18

$819

Mon 3/166:00 amFCA - LHR

2 stops22h 25mUnited Airlines

Mon 3/303:30 pmLHR - FCA

2 stops37h 00mUnited Airlines

Deal found 11/18

$830

Mon 4/136:40 amFCA - LGW

2 stops25h 00mMultiple Airlines

Wed 4/223:40 pmLGW - FCA

2 stops27h 24mMultiple Airlines

Deal found 11/19

$1,083

Mon 4/132:29 pmFCA - LHR

1 stop14h 51mUnited Airlines

Wed 4/222:50 pmLHR - FCA

1 stop13h 40mUnited Airlines

Deal found 11/19

$838

Thu 4/233:00 pmFCA - LHR

1 stop15h 10mKLM

Mon 5/48:55 pmLHR - FCA

2 stops27h 47mKLM

Deal found 11/18

$860

Mon 3/1611:59 amFCA - LHR

1 stop16h 01mDelta

Mon 3/3012:25 pmLHR - FCA

1 stop32h 26mDelta

Deal found 11/18

$878

Fri 12/56:15 amFCA - LHR

1 stop20h 25mUnited Airlines

Tue 12/911:35 amLHR - FCA

1 stop17h 11mUnited Airlines

Deal found 11/18

$847

Thu 4/163:00 pmFCA - LHR

1 stop15h 10mKLM

Thu 4/2310:55 amLHR - FCA

1 stop13h 47mKLM

Deal found 11/19

$888

Thu 4/235:25 amFCA - LHR

2 stops25h 05mDelta

Mon 5/45:35 pmLHR - FCA

2 stops31h 07mDelta

Deal found 11/19

$914

Last-minute flights from Kalispell to London
Discover last-minute flight deals from Kalispell to London. Data last updated November 19, 2025 and is based on user searches.

Fri 12/55:00 amFCA - LHR

1 stop22h 00mDelta

Tue 12/98:40 amLHR - FCA

2 stops39h 45mDelta

Deal found 11/18

$819

Fri 12/56:15 amFCA - LHR

1 stop20h 25mUnited Airlines

Tue 12/911:35 amLHR - FCA

1 stop17h 11mUnited Airlines

Deal found 11/18

$847

Fly from

Fly to

Route

Depart

Return

Price

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Mon 4/13

3:00 pm-1:10 pm

1 stop15h 10m

London Heathrow

Wed 4/22

11:45 am-11:02 pm

2 stops18h 17m

$811

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Fri 12/5

5:00 am-10:00 am

1 stop22h 00m

London Heathrow

Tue 12/9

8:40 am-5:25 pm

2 stops39h 45m

$819

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Mon 3/16

6:00 am-10:25 am

2 stops22h 25m

London Heathrow

Mon 3/30

3:30 pm-9:30 pm

2 stops37h 00m

$830

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Mon 4/13

2:29 pm-12:20 pm

1 stop14h 51m

London Heathrow

Wed 4/22

2:50 pm-9:30 pm

1 stop13h 40m

$838

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Fri 12/5

6:15 am-9:40 am

1 stop20h 25m

London Heathrow

Tue 12/9

11:35 am-9:46 pm

1 stop17h 11m

$847

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Thu 4/23

3:00 pm-1:10 pm

1 stop15h 10m

London Heathrow

Mon 5/4

8:55 pm-5:42 pm

2 stops27h 47m

$860

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Mon 3/16

11:59 am-10:00 am

1 stop16h 01m

London Heathrow

Mon 3/30

12:25 pm-1:51 pm

1 stop32h 26m

$878

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Thu 4/16

3:00 pm-1:10 pm

1 stop15h 10m

London Heathrow

Thu 4/23

10:55 am-5:42 pm

1 stop13h 47m

$888

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Thu 4/23

5:25 am-1:30 pm

2 stops25h 05m

London Heathrow

Mon 5/4

5:35 pm-5:42 pm

2 stops31h 07m

$914

KalispellLondon

FCA - LGW

FCALGW

Kalispell Glacier Park

Mon 4/13

6:40 am-2:40 pm

2 stops25h 00m

London Gatwick

Wed 4/22

3:40 pm-12:04 pm

2 stops27h 24m

$1,083

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Compare providers for flights from Kalispell to London

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Kalispell to London in November.

Provider	Price Accuracy	Trust Score*
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star

*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

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

9,025 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

United Airlines

7.4

Good

9,025 reviews

United Airlines

7.4

Good

9,025 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

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 1 airline.
How long is the flight from Kalispell to London?
Departing from Kalispell to London will take you 15h 10m. 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 is the cheapest airline to fly from Kalispell to London round-trip?
Flying on United Airlines is currently your cheapest option to London, with prices starting at $733. Users have found that United Airlines is 30% 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

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Top airline flying from Kalispell to London

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$733	Average$875	FlexibilityNo cancel fee	On-time69%

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$811+ 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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Kalispell to London with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Kalispell to London

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Kalispell to London

Cheapest flights from Kalispell to LondonExplore 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 November 19, 2025.

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 November 19, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Kalispell to London that are best for you.

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 November.

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.

Cheapflights Insights

Everything you need to know about your flight from Kalispell to London

Reviews of airlines servicing London

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.

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?

How long is the flight from Kalispell to London?

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

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

How can I find direct flights from Kalispell to London?

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

Traveling to a place near London?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Kalispell to London

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Kalispell to London

100% Free

Book with Flexibility

Travel Smart

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 November 19, 2025.