How long is the flight from Klagenfurt to London Heathrow Airport?

A quick flight from Klagenfurt to London Heathrow Airport can take about 7h 25m. Austrian Airlines provides one of the quickest options available for as low as £171. Klagenfurt and London Heathrow Airport are separated by a distance of 745 mi.

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.

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).

What is the cheapest time of day to fly from KLU to LHR?

When flying from Klagenfurt to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Klagenfurt (KLU) is the airport you will fly out of if you book a flight from Klagenfurt to London Heathrow. You should not have trouble finding flights to London Heathrow from Klagenfurt; the airport handles an average of 0 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Klagenfurt airport to London Heathrow. It is only a 2.0 mi journey to Klagenfurt (KLU) from Klagenfurt’s city center.

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

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

How can I find direct flights from Klagenfurt to Heathrow?

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

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

Yes. Cheapflights offers flight deals from Klagenfurt 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.

£117+ Flights from Klagenfurt to London Heathrow Airport

Cheap flight deals from Klagenfurt to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Klagenfurt to Heathrow
Explore the most affordable flight options available from Klagenfurt to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 December 2025.

Mon 29/1215:15KLU - LHR

1 stop4h 25mAustrian Airlines

Fri 2/109:05LHR - KLU

1 stop3h 45mAustrian Airlines

Deal found 28/12£358

Mon 29/1215:15KLU - LHR

1 stop4h 25mAustrian Airlines

Sat 3/106:00LHR - KLU

1 stop3h 30mAustrian Airlines

Deal found 28/12£360

Tue 30/1215:15KLU - LHR

1 stop7h 25mAustrian Airlines

Sat 3/119:25LHR - KLU

1 stop14h 05mAustrian Airlines

Deal found 29/12£362

Mon 29/1215:15KLU - LHR

1 stop4h 25mMultiple Airlines

Fri 2/107:40LHR - KLU

2 stops5h 10mMultiple Airlines

Deal found 28/12£384

Sun 28/1215:15KLU - LHR

1 stop7h 25mMultiple Airlines

Fri 2/107:40LHR - KLU

2 stops5h 10mMultiple Airlines

Deal found 28/12£387

Tue 30/1215:15KLU - LHR

1 stop7h 25mMultiple Airlines

Sun 4/120:15LHR - KLU

2 stops16h 35mMultiple Airlines

Deal found 29/12£395

Tue 30/1215:15KLU - LHR

2 stops6h 45mMultiple Airlines

Sat 3/106:00LHR - KLU

1 stop3h 30mMultiple Airlines

Deal found 28/12£396

Mon 29/1215:15KLU - LHR

2 stops6h 45mMultiple Airlines

Sat 3/106:00LHR - KLU

1 stop3h 30mMultiple Airlines

Deal found 29/12£400

Best flights from Klagenfurt to Heathrow
Discover carefully curated flight deals from Klagenfurt to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 December 2025.

Fri 23/115:15KLU - LHR

1 stop7h 25mAustrian Airlines

Sun 25/106:00LHR - KLU

1 stop6h 50mAustrian Airlines

Deal found 30/12£171

Thu 29/115:15KLU - LHR

1 stop4h 25mAustrian Airlines

Thu 5/206:00LHR - KLU

1 stop6h 50mAustrian Airlines

Deal found 30/12£171

Fri 27/215:15KLU - LHR

1 stop7h 25mAustrian Airlines

Mon 2/309:05LHR - KLU

1 stop3h 50mAustrian Airlines

Deal found 28/12£171

Wed 8/405:45KLU - LHR

1 stop6h 40mAustrian Airlines

Sun 12/406:00LHR - KLU

1 stop7h 00mAustrian Airlines

Deal found 28/12£173

Wed 25/305:45KLU - LHR

1 stop9h 20mAustrian Airlines

Tue 31/306:00LHR - KLU

1 stop7h 00mAustrian Airlines

Deal found 29/12£175

Thu 12/314:50KLU - LHR

1 stop4h 50mAustrian Airlines

Thu 19/309:05LHR - KLU

1 stop3h 50mAustrian Airlines

Deal found 30/12£175

Sat 14/216:00KLU - LHR

1 stop6h 40mAustrian Airlines

Mon 16/206:00LHR - KLU

1 stop6h 50mAustrian Airlines

Deal found 29/12£175

Tue 14/415:00KLU - LHR

1 stop4h 40mAustrian Airlines

Thu 23/406:00LHR - KLU

1 stop7h 00mAustrian Airlines

Deal found 28/12£176

Sat 18/405:45KLU - LHR

1 stop6h 40mAustrian Airlines

Mon 20/406:00LHR - KLU

1 stop7h 00mAustrian Airlines

Deal found 29/12£176

Tue 7/405:45KLU - LHR

1 stop13h 55mAustrian Airlines

Tue 14/406:00LHR - KLU

1 stop7h 00mAustrian Airlines

Deal found 28/12£176

Tue 7/405:45KLU - LHR

1 stop13h 55mAustrian Airlines

Wed 15/406:00LHR - KLU

1 stop7h 00mAustrian Airlines

Deal found 28/12£176

Last-minute flights from Klagenfurt to Heathrow
Discover last-minute flight deals from Klagenfurt to Heathrow. Data last updated 30 December 2025 and is based on user searches.

Sat 10/116:00KLU - LHR

1 stop17h 20mAustrian Airlines

Mon 19/109:05LHR - KLU

1 stop3h 45mAustrian Airlines

Deal found 28/12£188

Sat 10/116:00KLU - LHR

1 stop17h 20mMultiple Airlines

Mon 19/107:40LHR - KLU

2 stops5h 10mMultiple Airlines

Deal found 28/12£205

Thu 15/115:15KLU - LHR

1 stop4h 25mMultiple Airlines

Mon 19/107:40LHR - KLU

2 stops5h 10mMultiple Airlines

Deal found 28/12£206

Sat 17/116:00KLU - LHR

1 stop6h 40mAustrian Airlines

Mon 19/106:00LHR - KLU

1 stop6h 50mAustrian Airlines

Deal found 28/12£191

Mon 19/115:15KLU - LHR

1 stop4h 25mAustrian Airlines

Sat 24/106:00LHR - KLU

1 stop3h 30mAustrian Airlines

Deal found 29/12£192

Fri 23/115:15KLU - LHR

1 stop7h 25mAustrian Airlines

Sun 25/106:00LHR - KLU

1 stop6h 50mAustrian Airlines

Deal found 30/12£171

Fri 23/115:15KLU - LHR

2 stops8h 40mMultiple Airlines

Sun 25/106:00LHR - KLU

1 stop6h 50mMultiple Airlines

Deal found 30/12£190

Fri 23/115:15KLU - LHR

2 stops8h 40mLufthansa

Sun 25/107:40LHR - KLU

2 stops5h 10mLufthansa

Deal found 30/12£204

Sat 24/116:00KLU - LHR

1 stop6h 40mAustrian Airlines

Mon 26/106:00LHR - KLU

1 stop6h 50mAustrian Airlines

Deal found 29/12£174

Sat 24/116:00KLU - LHR

2 stops6h 00mLufthansa

Mon 26/106:35LHR - KLU

2 stops6h 15mLufthansa

Deal found 29/12£204

One-way flights from Klagenfurt to Heathrow
Search for one-way flight options from Klagenfurt to Heathrow. Find affordable one-way fares based on user searches. Data last updated 30 December 2025.

Sun 10/520:15KLU - LHR

2 stops19h 00mMultiple Airlines

Deal found 29/12£117

Fri 15/518:25KLU - LHR

2 stops21h 20mMultiple Airlines

Deal found 28/12£119

Fri 27/215:15KLU - LHR

1 stop4h 25mAustrian Airlines

Deal found 28/12£138

Fri 15/515:45KLU - LHR

1 stop4h 20mEurowings

Deal found 28/12£149

Fri 27/215:15KLU - LHR

2 stops8h 40mLufthansa

Deal found 28/12£159

Sun 10/515:00KLU - LHR

1 stop18h 20mAustrian Airlines

Deal found 29/12£164

Sat 11/405:45KLU - LHR

1 stop6h 40mAustrian Airlines

Deal found 29/12£165

Thu 14/515:00KLU - LHR

1 stop18h 20mAustrian Airlines

Deal found 28/12£166

Mon 2/215:15KLU - LHR

1 stop4h 25mAustrian Airlines

Deal found 28/12£167

Sun 1/214:05KLU - LHR

1 stop8h 35mAustrian Airlines

Deal found 28/12£167

Mon 2/215:15KLU - LHR

2 stops6h 45mLufthansa

Deal found 28/12£192

Sun 29/315:00KLU - LHR

1 stop7h 40mAustrian Airlines

Deal found 28/12£193

Find flight deals from Klagenfurt to Heathrow

Round-trip from	£170
One-way from	£117
Popular in	December
Cheapest in	February
Average price	£420

Austrian Airlines
12/2-19/2
2 total stops
17h 40m total
Klagenfurt to London

Search Deals

10/5
2 total stops
19h 00m total
Klagenfurt to London

Search Deals

Highest demand for flights based on searches. 34% potential increase in price (£92 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 8% potential price decrease (£14 potential savings vs. average return price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Fri 23/1

15:15-21:40

1 stop7h 25m

London Heathrow

Sun 25/1

06:00-13:50

1 stop6h 50m

£171

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Thu 29/1

15:15-18:40

1 stop4h 25m

London Heathrow

Thu 5/2

06:00-13:50

1 stop6h 50m

£171

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Fri 27/2

15:15-21:40

1 stop7h 25m

London Heathrow

Mon 2/3

09:05-13:55

1 stop3h 50m

£171

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Wed 8/4

05:45-11:25

1 stop6h 40m

London Heathrow

Sun 12/4

06:00-14:00

1 stop7h 00m

£173

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Wed 25/3

05:45-14:05

1 stop9h 20m

London Heathrow

Tue 31/3

06:00-14:00

1 stop7h 00m

£175

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Thu 12/3

14:50-18:40

1 stop4h 50m

London Heathrow

Thu 19/3

09:05-13:55

1 stop3h 50m

£175

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Sat 14/2

16:00-21:40

1 stop6h 40m

London Heathrow

Mon 16/2

06:00-13:50

1 stop6h 50m

£175

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Tue 14/4

15:00-18:40

1 stop4h 40m

London Heathrow

Thu 23/4

06:00-14:00

1 stop7h 00m

£176

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Sat 18/4

05:45-11:25

1 stop6h 40m

London Heathrow

Mon 20/4

06:00-14:00

1 stop7h 00m

£176

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Tue 7/4

05:45-18:40

1 stop13h 55m

London Heathrow

Tue 14/4

06:00-14:00

1 stop7h 00m

£176

Flights are sorted by cheapest return flights first.

Deals found on 29/12

Showing 1-10 of 23 results

Best time to book a flight from Klagenfurt to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Klagenfurt 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.

Cheapflights Insights

Everything you need to know about your flight from Klagenfurt to London Heathrow Airport

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

Currently, March is the cheapest month in which you can book a flight from Klagenfurt to London Heathrow Airport (average of £134). Flying from Klagenfurt to London Heathrow Airport in November is currently the most expensive (average of £191). 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.

Related info for your journey

What airport do you fly from for flights from Klagenfurt to London Heathrow?
Klagenfurt (KLU) is the airport you will fly out of if you book a flight from Klagenfurt to London Heathrow. You should not have trouble finding flights to London Heathrow from Klagenfurt; the airport handles an average of 0 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Klagenfurt airport to London Heathrow. It is only a 2.0 mi journey to Klagenfurt (KLU) from Klagenfurt’s city center.
How long is the flight from Klagenfurt to London Heathrow Airport?
A quick flight from Klagenfurt to London Heathrow Airport can take about 7h 25m. Austrian Airlines provides one of the quickest options available for as low as £171. Klagenfurt and London Heathrow Airport are separated by a distance of 745 mi.
Can I find deals for flights from Klagenfurt to Heathrow that include hotel bookings?
Yes. In addition to deals on Klagenfurt to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Klagenfurt to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Klagenfurt to Heathrow.
Can I find deals for business class flights from Klagenfurt to Heathrow?
Yes. Cheapflights offers flight deals from Klagenfurt 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 Klagenfurt to London Heathrow Airport?
Currently, March is the cheapest month in which you can book a flight from Klagenfurt to London Heathrow Airport (average of £134). Flying from Klagenfurt to London Heathrow Airport in November is currently the most expensive (average of £191). 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.

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Cheap flights from Klagenfurt to London Heathrow Airport from £117

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/5. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Klagenfurt to Heathrow

Cheapest flights from Klagenfurt to HeathrowExplore the most affordable flight options available from Klagenfurt to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 December 2025.

Explore the most affordable flight options available from Klagenfurt to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 December 2025.

Find flight deals from Klagenfurt to Heathrow

Round-trip from

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Popular in

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Cheapflights Fare Finder

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

Best time to book a flight from Klagenfurt to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Klagenfurt with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Klagenfurt to London Heathrow Airport

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

Related info for your journey

Find useful and relevant information for your journey from Klagenfurt 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 Klagenfurt to London Heathrow?

How long is the flight from Klagenfurt to London Heathrow Airport?

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

How can I find direct flights from Klagenfurt to Heathrow?

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

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

Travelling to a place near London Heathrow Airport?

Browse thousands of different options on Cheapflights for your next trip

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

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

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

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

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Cheapest flights from Klagenfurt to Heathrow
Explore the most affordable flight options available from Klagenfurt to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 December 2025.