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Cheap flights from Klagenfurt to London Heathrow Airport from £72

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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
KLU — LHR
26 Jun — 3 Jul1
1 adult
1 adult, Economy, 0 bags

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 27 May 2026.

Wed 1/717:55
KLU
-
LHR
2 stops16h 15m
Multiple Airlines
Mon 6/720:50
LHR
-
KLU
2 stops16h 50m
Multiple Airlines
Deal found 23/5£202
Sat 6/615:00
KLU
-
LHR
1 stop7h 40m
Austrian Airlines
Mon 8/606:00
LHR
-
KLU
1 stop7h 50m
Austrian Airlines
Deal found 25/5£218
Sat 6/615:00
KLU
-
LHR
1 stop18h 20m
Austrian Airlines
Mon 15/606:00
LHR
-
KLU
1 stop7h 50m
Austrian Airlines
Deal found 25/5£219
Sat 6/615:00
KLU
-
LHR
1 stop18h 20m
Austrian Airlines
Fri 12/606:00
LHR
-
KLU
1 stop16h 20m
Austrian Airlines
Deal found 25/5£220
Tue 2/615:00
KLU
-
LHR
1 stop18h 20m
Austrian Airlines
Tue 9/609:05
LHR
-
KLU
1 stop3h 55m
Austrian Airlines
Deal found 26/5£232
Wed 10/615:00
KLU
-
LHR
1 stop4h 40m
Multiple Airlines
Sat 13/607:25
LHR
-
KLU
2 stops5h 35m
Multiple Airlines
Deal found 23/5£235
Sat 6/615:00
KLU
-
LHR
1 stop4h 40m
Multiple Airlines
Fri 12/607:25
LHR
-
KLU
2 stops5h 35m
Multiple Airlines
Deal found 25/5£236
Sat 20/615:00
KLU
-
LHR
2 stops6h 45m
Multiple Airlines
Wed 24/606:00
LHR
-
KLU
1 stop7h 00m
Multiple Airlines
Deal found 23/5£237
Sat 6/615:00
KLU
-
LHR
1 stop7h 40m
Austrian Airlines
Wed 10/609:05
LHR
-
KLU
1 stop3h 55m
Austrian Airlines
Deal found 27/5£239
Thu 25/615:00
KLU
-
LHR
2 stops6h 40m
Multiple Airlines
Sat 27/606:00
LHR
-
KLU
1 stop7h 00m
Multiple Airlines
Deal found 24/5£244
Tue 23/615:00
KLU
-
LHR
1 stop7h 40m
Austrian Airlines
Mon 29/606:00
LHR
-
KLU
1 stop11h 00m
Austrian Airlines
Deal found 24/5£247

Find flight deals from Klagenfurt to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Klagenfurt (KLU) 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 27 May 2026.

Round-trip from

£202

One-way from

£72

Popular in

March

Cheapest in

January

Average price

£76
1/7-6/7
  • 1/7-6/7
  • 4 total stops
  • 33h 05m total
  • Klagenfurt to London
Search Deals
10/6
  • 10/6
  • 2 total stops
  • 21h 50m total
  • Klagenfurt to London
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£6 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Klagenfurt 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 27 May 2026.
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

Cheapest return flight

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Wed 10/6

15:00-21:40

1 stop7h 40m

London Heathrow

Sat 20/6

06:00-14:00

1 stop7h 00m

£218

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Sat 20/6

15:00-21:40

1 stop7h 40m

London Heathrow

Sun 21/6

06:00-14:00

1 stop7h 00m

£218

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Wed 10/6

15:00-21:40

1 stop7h 40m

London Heathrow

Mon 15/6

06:00-14:50

1 stop7h 50m

£218

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Sat 13/6

05:50-18:40

1 stop13h 50m

London Heathrow

Mon 15/6

06:00-14:50

1 stop7h 50m

£218

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Sat 6/6

15:00-18:40

1 stop4h 40m

London Heathrow

Mon 8/6

06:00-14:50

1 stop7h 50m

£240

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Sat 6/6

15:00-21:40

1 stop7h 40m

London Heathrow

Wed 10/6

06:55-14:00

2 stops6h 05m

£257

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Sat 6/6

15:00-21:40

1 stop7h 40m

London Heathrow

Sun 7/6

06:00-14:00

1 stop7h 00m

£284

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Wed 1/7

15:00-21:40

1 stop7h 40m

London Heathrow

Mon 24/8

06:00-18:00

1 stop11h 00m

£304

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Sat 22/8

15:00-21:40

1 stop7h 40m

London Heathrow

Tue 25/8

09:05-14:00

1 stop3h 55m

£306
Fastest return journey

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Fri 18/9

05:50-11:25

1 stop6h 35m

London Heathrow

Tue 22/9

09:05-14:00

1 stop3h 55m

£306

Flights are sorted by cheapest return flights first.

Deals found on 22/5

Showing 1-10 of 22 resultsSorted by cheapest first
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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.

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?

    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 40m. Austrian Airlines provides one of the quickest options available for as low as £218. 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.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Milton Keynes
Northampton
Wembley
Luton
Gatwick
Croydon
Ilford
Slough
Hayes
Brentford
Colchester
Kingston upon Thames
Eastbourne
Ipswich
Watford
Swindon
Romford
Guildford
Borehamwood

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

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

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

Yes! Cheapflights helps users easily find flights from Klagenfurt to Heathrow with no change fees.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Heathrow from Klagenfurt today and book when prices fit your budget.

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