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$640+ Cheap flights from Kalispell (FCA) to the United Kingdom

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 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — LHR
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Find flight deals from Kalispell to United Kingdom

Cheapest flights from Kalispell to United Kingdom
Explore the most affordable flight options available from Kalispell to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Expedia deal was found by Cheapflights users on 10/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/16:33 amFCA - LHR
2 stops27h 17mMultiple Airlines
Mon 11/39:30 amLHR - FCA
2 stops21h 27mMultiple Airlines
Deal found 10/28$1,626
This United Airlines deal was found by Cheapflights users on 10/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/16:10 amFCA - LHR
2 stops19h 20mUnited Airlines
Mon 11/311:35 amLHR - FCA
1 stop17h 09mUnited Airlines
Deal found 10/28$2,653
This British Airways deal was found by Cheapflights users on 10/29. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/21:06 pmFCA - EDI
2 stops22h 29mMultiple Airlines
Mon 11/108:00 pmEDI - FCA
2 stops34h 57mMultiple Airlines
Deal found 10/29$5,184
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Sun 11/25:10 amFCA - EDI
3 stops42h 45mUnited Airlines
Mon 11/109:25 amEDI - FCA
2 stops19h 19mUnited Airlines
Deal found 10/29$11,392

Cheap flight deals from Kalispell to United Kingdom

Keep the following information in mind while searching for Kalispell to United Kingdom flight deals. Data was last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$640
(United Airlines)

Popular in

December

Cheapest in

October

Average price

$800
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 United Kingdom
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 October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kalispell to United Kingdom 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 October 30, 2025.
Use the filters below to find and compare flights from Kalispell to the United Kingdom that are best for you.

Fly from

Kalispell

Fly to

United Kingdom

Route

Depart

Return

Price

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 1/14

6:00 am-9:40 am

1 stop20h 40m

London Heathrow

Fri 1/23

6:30 am-11:20 pm

2 stops23h 50m

$640

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 1/14

12:54 pm-11:20 am

1 stop15h 26m

London Heathrow

Fri 1/23

9:25 am-7:06 pm

1 stop16h 41m

$657

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Thu 4/23

6:31 am-9:40 am

1 stop20h 09m

London Heathrow

Mon 5/4

4:25 pm-9:30 pm

2 stops36h 05m

$793

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Fri 3/27

6:31 am-8:30 am

2 stops19h 59m

London Heathrow

Tue 3/31

3:50 pm-9:30 pm

2 stops36h 40m

$796

KalispellEdinburgh

FCA - EDI

FCAEDI

Kalispell Glacier Park

Wed 3/4

6:00 am-7:55 am

2 stops18h 55m

Edinburgh Turnhouse

Tue 3/10

8:25 am-9:38 pm

2 stops19h 13m

$808

KalispellEdinburgh

FCA - EDI

FCAEDI

Kalispell Glacier Park

Wed 4/1

3:00 pm-4:25 pm

2 stops18h 25m

Edinburgh Turnhouse

Sun 4/5

6:00 am-11:07 pm

2 stops24h 07m

$809

KalispellEdinburgh

FCA - EDI

FCAEDI

Kalispell Glacier Park

Wed 4/1

6:31 am-7:20 am

2 stops41h 49m

Edinburgh Turnhouse

Sun 4/5

9:00 am-9:30 pm

2 stops43h 30m

$825

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Thu 4/23

1:53 pm-1:45 pm

1 stop16h 52m

London Heathrow

Mon 5/4

9:50 am-5:51 pm

1 stop15h 01m

$872

KalispellLondon

FCA - LGW

FCALGW

Kalispell Glacier Park

Wed 1/14

6:25 am-10:55 am

2 stops21h 30m

London Gatwick

Fri 1/23

11:55 am-12:14 pm

2 stops31h 19m

$904

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Best time to book a flight from Kalispell to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom 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 the United Kingdom
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated October 30, 2025.
Read reviews from past customers who have flown Delta and United Airlines from Kalispell to the United Kingdom. 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.
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,998 reviews
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,998 reviews
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

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

    Located just 8.4 mi from the city center, Kalispell Glacier Park (FCA) is the airport most travelers will use when flying to United Kingdom from Kalispell.

  • How long is the flight from Kalispell to United Kingdom?

    United Airlines and Delta can get you from Kalispell to United Kingdom in just under 18h 25m. Your travel time can differ by up to 2h 15m. The distance from Kalispell to United Kingdom is about 4206 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Kalispell to United Kingdom?

    The most popular route from Kalispell to United Kingdom is Kalispell Glacier Park - London Heathrow. You may also consider Kalispell Glacier Park - Edinburgh Turnhouse or Kalispell Glacier Park - London Gatwick.

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

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

  • How can I find direct flights from Kalispell to United Kingdom?

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

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

    Yes. Cheapflights offers flight deals from Kalispell to United Kingdom 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 United Kingdom

Discover the top airline that operate flights from Kalispell to United Kingdom. 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$733Average$875FlexibilityNo cancel feeOn-time69%

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