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Cheap flights from Kalispell to London Heathrow Airport from £586

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/3. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — LHR
18 Mar — 25 Mar1
1 adult

Cheap 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 13 March 2025.

Round-trip from

£586

Popular in

July

Cheapest in

November

Average price

£651
Delta
  • Delta
  • 25/3-31/3
  • 4 total stops
  • 39h 20m total
  • Kalispell to London
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£164 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£24 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

Find flight deals from Kalispell to Heathrow

Cheapest flights from Kalispell to Heathrow
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 13 March 2025.

Tue 25/317:55FCA - LHR
2 stops20h 15mDelta
Mon 31/312:25LHR - FCA
2 stops19h 05mDelta
Deal found 12/3£586
Sat 26/406:10FCA - LHR
1 stop20h 30mUnited Airlines
Sat 3/509:30LHR - FCA
2 stops43h 11mUnited Airlines
Deal found 12/3£606
Thu 24/715:00FCA - LHR
1 stop15h 10mVirgin Atlantic
Tue 5/812:25LHR - FCA
1 stop18h 23mVirgin Atlantic
Deal found 12/3£763
Sat 26/711:59FCA - LHR
1 stop14h 51mKLM
Sun 10/812:25LHR - FCA
1 stop18h 23mKLM
Deal found 13/3£817
Sun 24/818:35FCA - LHR
2 stops18h 45mMultiple Airlines
Thu 4/921:25LHR - FCA
2 stops33h 34mMultiple Airlines
Deal found 11/3£2,713

Find flights from Kalispell to Heathrow within your budget

Customise 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 858,174 searches. Data last updated 13 March 2025.

Fly from

Kalispell

Fly to

Heathrow

Route

Depart

Return

Price

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Tue 25/3

17:55-20:10

2 stops20h 15m

London Heathrow

Mon 31/3

12:25-00:30

2 stops19h 05m

£586

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Sat 26/4

06:10-09:40

1 stop20h 30m

London Heathrow

Sat 3/5

09:30-21:41

2 stops43h 11m

£606

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Thu 24/7

15:00-13:10

1 stop15h 10m

London Heathrow

Tue 5/8

12:25-23:48

1 stop18h 23m

£763

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Sat 26/7

11:59-09:50

1 stop14h 51m

London Heathrow

Sun 10/8

12:25-23:48

1 stop18h 23m

£817

KalispellLondon

FCA - LHR

FCALHR

Kalispell Glacier Park

Sun 24/8

18:35-20:20

2 stops18h 45m

London Heathrow

Thu 4/9

21:25-23:59

2 stops33h 34m

£2,713

Flights are sorted by cheapest return flights first.

Deals found on 12/3

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.
Estimated return 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.

Travel insights for flights from Kalispell to Heathrow

Get recent, data-driven insights about flights from Kalispell to Heathrow including ideal travel times, pricing trends, and more.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 13 March 2025.
Delta
8.0
Very Good
7,953 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very Good
7,953 reviews
Delta
8.0
Very Good
7,953 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,320 reviews
Delta
8.0
Very Good
7,953 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,623 reviews
Delta
8.0
Very Good
7,953 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic
7.4
Good
641 reviews
Delta
8.0
Very Good
7,953 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • What airport do you fly from for flights from Kalispell to London Heathrow?

    Located just 8.4 mi from the city center, Kalispell Glacier Park is the airport most travelers will use when flying to London Heathrow from Kalispell. Booking flights from Glacier Park (FCA) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 0 different airlines.

  • What are the cheapest airlines flying from Kalispell to London Heathrow Airport round-trip?

    Currently priced at £586, Delta will fly you from Kalispell to London Heathrow Airport and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Virgin Atlantic - these airlines can fly you to your destination from £606 and £763, respectively. You may be able to fly from Kalispell to London Heathrow Airport for 14% less than the average price by searching for these airlines.

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

    Yes. In addition to deals on Kalispell to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Kalispell to Heathrow?

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

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

    Yes. Cheapflights offers flight deals from Kalispell to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Kalispell to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Kalispell to London Heathrow Airport (average of £112). Flying from Kalispell to London Heathrow Airport in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Kalispell?

Book flights to Kalispell if you plan to visit one of these locations
Hounslow
Deal
Milton Keynes
Gatwick
Croydon
Slough
Luton
Hayes
Eastbourne
Ilford
Swindon
Northampton
Crawley
Southend-on-Sea
Maidstone
Winchester
Wembley
Ipswich
Southall
Watford

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Alternative routes for Kalispell to Heathrow

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Fly with Cheapflights

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How does Cheapflights help users find flights from Kalispell to Heathrow?

When you search for this flight from Kalispell to Heathrow, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Kalispell to Heathrow?

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Can Cheapflights find flights from Kalispell to Heathrow with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Kalispell to Heathrow, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Kalispell to Heathrow become cheaper?

Yes! Start tracking prices for Kalispell to Heathrow flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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