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$728+ 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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — LHR
Mar 22 — Mar 291
Sun 3/22
Sun 3/29
1 adult, Economy
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Cheap 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 February 20, 2026.

This United Airlines deal was found by Cheapflights users on 2/18. 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 4/92:33 pm
FCA
-
LHR
1 stop12h 07m
United Airlines
Tue 4/142:50 pm
LHR
-
FCA
1 stop13h 37m
United Airlines
Deal found 2/18$728
This American Airlines deal was found by Cheapflights users on 2/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/191:25 pm
FCA
-
LHR
1 stop12h 40m
American Airlines
Wed 8/264:25 pm
LHR
-
FCA
1 stop25h 35m
American Airlines
Deal found 2/19$846
This Alaska Airlines deal was found by Cheapflights users on 2/16. 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.
Wed 8/198:00 pm
FCA
-
LHR
1 stop12h 05m
Alaska Airlines
Wed 8/265:00 pm
LHR
-
FCA
1 stop13h 59m
Alaska Airlines
Deal found 2/16$847
This United Airlines deal was found by Cheapflights users on 2/19. 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 8/196:31 am
FCA
-
LHR
1 stop20h 09m
United Airlines
Wed 8/267:45 am
LHR
-
FCA
2 stops20h 45m
United Airlines
Deal found 2/19$850
This Delta deal was found by Cheapflights users on 2/16. 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 8/195:25 am
FCA
-
LHR
2 stops17h 55m
Delta
Wed 8/266:30 am
LHR
-
FCA
2 stops23h 32m
Delta
Deal found 2/16$852
This United Airlines deal was found by Cheapflights users on 2/18. 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 3/46:00 am
FCA
-
LHR
1 stop20h 40m
United Airlines
Sun 3/811:35 am
LHR
-
FCA
1 stop16h 22m
United Airlines
Deal found 2/18$861
This United Airlines deal was found by Cheapflights users on 2/18. 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 9/14:09 pm
FCA
-
EDI
2 stops32h 31m
United Airlines
Thu 10/19:00 am
EDI
-
FCA
2 stops43h 30m
United Airlines
Deal found 2/18$908
This United Airlines deal was found by Cheapflights users on 2/19. 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 8/2012:35 pm
FCA
-
EDI
1 stop12h 50m
United Airlines
Sat 8/299:15 am
EDI
-
FCA
2 stops43h 15m
United Airlines
Deal found 2/19$998
This KAYAK deal was found by Cheapflights users on 2/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2011:33 am
FCA
-
LGW
2 stops20h 07m
Multiple Airlines
Tue 5/261:00 pm
LGW
-
FCA
2 stops17h 58m
Multiple Airlines
Deal found 2/15$1,006
This United Airlines deal was found by Cheapflights users on 2/16. 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.
Fri 8/2110:47 am
FCA
-
EDI
2 stops37h 33m
United Airlines
Sat 8/299:15 am
EDI
-
FCA
2 stops43h 15m
United Airlines
Deal found 2/16$1,013
This United Airlines deal was found by Cheapflights users on 2/17. 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 3/46:00 am
FCA
-
EDI
2 stops18h 55m
United Airlines
Tue 3/108:25 am
EDI
-
FCA
2 stops19h 32m
United Airlines
Deal found 2/17$1,026
This Mytrip deal was found by Cheapflights users on 2/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/2010:53 am
FCA
-
LGW
2 stops17h 52m
Multiple Airlines
Sun 6/2810:00 am
LGW
-
FCA
2 stops30h 18m
Multiple Airlines
Deal found 2/16$2,059

Find 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 February 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$728
(United Airlines)

Popular in

March

Cheapest in

October
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. 23% potential increase in price ($362 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($94 potential savings vs. average RT price).
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 February 20, 2026.
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

Thu 4/9

2:33 pm-9:40 am

1 stop12h 07m

London Heathrow

Tue 4/14

2:50 pm-9:27 pm

1 stop13h 37m

$728

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Wed 3/4

6:00 am-9:40 am

1 stop20h 40m

London Heathrow

Sun 3/8

11:35 am-9:57 pm

1 stop16h 22m

$861

KalispellLondon

FCA - LGW

FCALGW

Kalispell Glacier Park

Wed 5/20

11:33 am-2:40 pm

2 stops20h 07m

London Gatwick

Tue 5/26

1:00 pm-11:58 pm

2 stops17h 58m

$1,006

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-9:57 pm

2 stops19h 32m

$1,026

KalispellEdinburgh

FCA - EDI

FCAEDI

Kalispell Glacier Park

Wed 3/4

6:00 am-7:55 am

2 stops18h 55m

Edinburgh Turnhouse

Sun 3/8

11:40 am-11:53 am

2 stops30h 13m

$1,026

KalispellEdinburgh

FCA - EDI

FCAEDI

Kalispell Glacier Park

Wed 3/4

1:53 pm-8:30 am

2 stops35h 37m

Edinburgh Turnhouse

Tue 3/10

8:20 pm-11:57 pm

2 stops33h 37m

$1,167

KalispellEdinburgh

FCA - EDI

FCAEDI

Kalispell Glacier Park

Sat 3/7

6:00 am-7:55 am

2 stops18h 55m

Edinburgh Turnhouse

Sat 3/14

11:30 am-12:34 pm

2 stops55h 04m

$1,247

KalispellLondon

FCA - LGW

FCALGW

Kalispell Glacier Park

Sat 6/20

10:53 am-11:45 am

2 stops17h 52m

London Gatwick

Sun 6/28

10:00 am-9:18 am

2 stops30h 18m

$2,059

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/18

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 February 20, 2026.
Read reviews from past customers who have flown 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.
United Airlines
7.4
Good
9,325 reviews

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,325 reviews
United Airlines
7.4
Good
9,325 reviews

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 can get you from Kalispell to United Kingdom in just under 12h 07m. Your travel time can differ by up to . The distance from Kalispell to United Kingdom is about 4512 mi.

  • 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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Alternative routes for Kalispell to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
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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 February 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$671Average$912FlexibilityNo cancel feeOn-time69%

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