$334+ Cheap flights from Kalispell (FCA) to Heathrow (LHR)
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 1/25. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — LHR
Oct 11 — Oct 181
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Kalispell to Heathrow with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”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 Heathrow
Cheapest
Best
Last-minute
One-way
Cheapest flights from Kalispell to HeathrowExplore 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 September 11, 2026.
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 September 11, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 12/76:33 am -
1 stop22h 47m
Tue 2/22:45 pm -
1 stop15h 12m
Deal found 9/10![Alaska Airlines logo]()
$765
This KLM deal was found by Cheapflights users on 9/10. 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.
Mon 10/2612:28 pm -
1 stop15h 32m
Mon 11/25:35 pm -
2 stops36h 22m
Deal found 9/10![Multiple Airlines logo]()
$800
This Delta deal was found by Cheapflights users on 9/10. 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 12/66:16 pm -
1 stop32h 44m
Wed 1/2710:45 am -
1 stop14h 00m
Deal found 9/10![Delta logo]()
$802
This Booking.com deal was found by Cheapflights users on 9/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/262:03 pm -
1 stop16h 17m
Mon 11/22:45 pm -
1 stop16h 14m
Deal found 9/10![Alaska Airlines logo]()
$808
This deal was found by Cheapflights users on 9/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/22:10 pm -
1 stop15h 10m
Fri 1/82:45 pm -
1 stop15h 12m
Deal found 9/10![Alaska Airlines logo]()
$812
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 12/32:10 pm -
1 stop15h 10m
Thu 1/282:45 pm -
1 stop15h 12m
Deal found 9/10![Alaska Airlines logo]()
$815
This Air France deal was found by Cheapflights users on 9/10. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/612:28 pm -
2 stops18h 17m
Fri 1/295:30 pm -
2 stops36h 37m
Deal found 9/10![Air France logo]()
$821
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 12/612:51 pm -
1 stop16h 29m
Tue 2/22:45 pm -
1 stop15h 12m
Deal found 9/10![Alaska Airlines logo]()
$830
This Delta deal was found by Cheapflights users on 9/10. 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.
Mon 12/712:28 pm -
1 stop14h 32m
Thu 1/78:40 am -
2 stops34h 49m
Deal found 9/10![Delta logo]()
$831
This Delta deal was found by Cheapflights users on 9/10. 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.
Mon 11/305:11 am -
1 stop21h 49m
Tue 12/299:50 am -
1 stop17h 29m
Deal found 9/10![Delta logo]()
$832
This Delta deal was found by Cheapflights users on 9/10. 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 12/612:28 pm -
2 stops16h 07m
Thu 1/78:40 am -
2 stops34h 49m
Deal found 9/10![Delta logo]()
$835
Best flights from Kalispell to HeathrowDiscover carefully curated flight deals from Kalispell to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.
Discover carefully curated flight deals from Kalispell to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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.
Tue 3/22:10 pm -
1 stop15h 10m
Fri 3/52:45 pm -
1 stop16h 14m
Deal found 9/10![Alaska Airlines logo]()
$756
This KLM deal was found by Cheapflights users on 9/10. 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.
Mon 10/2612:28 pm -
2 stops16h 12m
Mon 11/25:35 pm -
2 stops36h 22m
Deal found 9/10![Multiple Airlines logo]()
$804
This Delta deal was found by Cheapflights users on 9/10. 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 12/65:01 am -
2 stops19h 04m
Sun 1/3110:45 am -
1 stop14h 00m
Deal found 9/10![Delta logo]()
$851
This United Airlines deal was found by Cheapflights users on 9/10. 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 12/46:15 am -
2 stops17h 55m
Thu 1/76:00 pm -
2 stops34h 30m
Deal found 9/10![United Airlines logo]()
$914
This Delta deal was found by Cheapflights users on 9/10. 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 12/66:16 pm -
1 stop32h 44m
Fri 1/2911:20 am -
2 stops31h 29m
Deal found 9/10![Delta logo]()
$876
This United Airlines deal was found by Cheapflights users on 9/7. 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 3/21:40 pm -
2 stops24h 40m
Fri 3/511:35 am -
1 stop16h 55m
Deal found 9/7![United Airlines logo]()
$920
This American Airlines deal was found by Cheapflights users on 9/8. 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.
Thu 10/11:02 pm -
1 stop14h 53m
Thu 10/1510:05 am -
2 stops19h 54m
Deal found 9/8![Multiple Airlines logo]()
$942
This United Airlines deal was found by Cheapflights users on 9/8. 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 12/86:15 am -
2 stops16h 40m
Fri 1/87:40 am -
2 stops17h 41m
Deal found 9/8![United Airlines logo]()
$967
Last-minute flights from Kalispell to HeathrowDiscover last-minute flight deals from Kalispell to Heathrow. Data last updated September 11, 2026 and is based on user searches.
Discover last-minute flight deals from Kalispell to Heathrow. Data last updated September 11, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/8. 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.
Thu 10/11:34 pm -
1 stop14h 41m
Thu 10/159:50 am -
1 stop20h 09m
Deal found 9/8![Multiple Airlines logo]()
$935
This Delta deal was found by Cheapflights users on 9/8. 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.
Thu 10/223:36 pm -
1 stop14h 29m
Thu 10/296:20 am -
2 stops22h 37m
Deal found 9/8![Delta logo]()
$839
This KLM deal was found by Cheapflights users on 9/10. 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.
Mon 10/2612:28 pm -
1 stop15h 32m
Mon 11/25:35 pm -
2 stops36h 22m
Deal found 9/10![Multiple Airlines logo]()
$800
This Booking.com deal was found by Cheapflights users on 9/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/262:03 pm -
1 stop16h 17m
Mon 11/22:45 pm -
1 stop16h 14m
Deal found 9/10![Alaska Airlines logo]()
$808
This American Airlines deal was found by Cheapflights users on 9/8. 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.
Tue 10/271:58 pm -
1 stop14h 27m
Sun 11/11:35 pm -
1 stop30h 40m
Deal found 9/8![Multiple Airlines logo]()
$992
One-way flights from Kalispell to HeathrowSearch for one-way flight options from Kalispell to Heathrow. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
Search for one-way flight options from Kalispell to Heathrow. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
This KLM deal was found by Cheapflights users on 9/7. 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.
Mon 1/255:25 am -
2 stops18h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![KLM logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:45 pm -
3 stops33h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$435
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/257:37 pm -
3 stops32h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$461
This Virgin Atlantic deal was found by Cheapflights users on 9/7. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2312:28 pm -
2 stops15h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Virgin Atlantic logo]()
$513
This United Airlines deal was found by Cheapflights users on 9/7. 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 9/1610:50 am -
2 stops17h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![United Airlines logo]()
$597
This United Airlines deal was found by Cheapflights users on 9/11. 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 12/182:45 pm -
2 stops34h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![United Airlines logo]()
$604
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/168:21 pm -
3 stops52h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$645
This Delta deal was found by Cheapflights users on 9/11. 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.
Fri 12/1812:28 pm -
1 stop14h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Delta logo]()
$922
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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.
Fri 12/187:37 pm -
1 stop33h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Alaska Airlines logo]()
$1,025
This BusinessClass deal was found by Cheapflights users on 9/10. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/186:10 am -
1 stop20h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Brussels Airlines logo]()
$1,039
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 September 11, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $756 (Alaska Airlines) |
One-way from | $334 (KLM) |
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 7,457,451 searches. Data last updated September 11, 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
Cheapest round-trip
KalispellLondon
FCA Kalispell Glacier Park - LHR London Heathrow
FCALHR
Kalispell Glacier Park
Mon 1/25
7:37 pm-10:50 am
3 stops32h 13m
London Heathrow
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$461
KalispellLondon
FCA Kalispell Glacier Park - LHR London Heathrow
FCALHR
Kalispell Glacier Park
Fri 10/23
12:28 pm-11:20 am
2 stops15h 52m
London Heathrow
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$513
KalispellLondon
FCA Kalispell Glacier Park - LHR London Heathrow
FCALHR
Kalispell Glacier Park
Fri 10/23
12:26 pm-11:55 am
1 stop16h 29m
London Heathrow
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$513
KalispellLondon
FCA Kalispell Glacier Park - LHR London Heathrow
FCALHR
Kalispell Glacier Park
Wed 9/16
10:50 am-11:35 am
2 stops17h 45m
London Heathrow
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$597
KalispellLondon
FCA Kalispell Glacier Park - LHR London Heathrow
FCALHR
Kalispell Glacier Park
Fri 12/18
2:45 pm-8:30 am
2 stops34h 45m
London Heathrow
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$604
KalispellLondon
FCA Kalispell Glacier Park - LHR London Heathrow
FCALHR
Kalispell Glacier Park
Tue 3/2
2:10 pm-12:20 pm
1 stop15h 10m
London Heathrow
Fri 3/5
2:45 pm-11:59 pm
1 stop16h 14m
$756
KalispellLondon
FCA Kalispell Glacier Park - LHR London Heathrow
FCALHR
Kalispell Glacier Park
Mon 10/26
12:28 pm-10:40 am
2 stops16h 12m
London Heathrow
Mon 11/2
5:35 pm-10:57 pm
2 stops36h 22m
$804
KalispellLondon
FCA Kalispell Glacier Park - LHR London Heathrow
FCALHR
Kalispell Glacier Park
Sun 12/6
5:01 am-7:05 am
2 stops19h 04m
London Heathrow
Sun 1/31
10:45 am-5:45 pm
1 stop14h 00m
$851
KalispellLondon
FCA Kalispell Glacier Park - LHR London Heathrow
FCALHR
Kalispell Glacier Park
Sun 12/6
6:16 pm-10:00 am
1 stop32h 44m
London Heathrow
Fri 1/29
11:20 am-11:49 am
2 stops31h 29m
$876
KalispellLondon
FCA Kalispell Glacier Park - LHR London Heathrow
FCALHR
Kalispell Glacier Park
Fri 12/4
6:15 am-7:10 am
2 stops17h 55m
London Heathrow
Thu 1/7
6:00 pm-9:30 pm
2 stops34h 30m
$914
Showing 1-10 of 15 resultsSorted 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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
FCA-LHR
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 September 11, 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.
Comfort
7.3
Overall
7.4
Entertainment
7.1
Boarding
7.7
Food
6.7
Crew
8.1
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Comfort
7.3
Overall
7.4
Entertainment
7.1
Boarding
7.7
Food
6.7
Crew
8.1
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
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.
Traveling to a place near London Heathrow Airport?
Book flights to London Heathrow Airport if you plan to visit one of these locationsIlford
Dorking
Gatwick
Hounslow
Harrow
Wembley
Southend-on-Sea
Basingstoke
Watford
Northampton
Dartford
Winchester
Croydon
Chipping Norton
Kingston upon Thames
Eastbourne
Slough
Stansted
Sutton
Luton
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
Complete your trip
Flights by cabin class
Heathrow flight routes
Other flight options
Other flights from Kalispell
Popular flights
Alternative routes for Kalispell to Heathrow
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Heathrow by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Kalispell to Heathrow by cabin class
Find flights from Kalispell to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Heathrow
Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 11, 2026.
Kalispell and Heathrow flights
Browse other Kalispell and Heathrow flight options. Last updated on September 11, 2026.
Other flights from Kalispell
Browse through other flights departing from Kalispell. Flights are based on user searches made on Cheapflights and were last updated on September 11, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 7,457,451 searches. Data last updated September 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$733 | Average$1,189 | FlexibilityNo cancel fee | On-time69% |