When did momondo last update prices for flights from Klagenfurt Airport to London Heathrow Airport?

Prices for flights from Klagenfurt Airport to London Heathrow Airport were last updated today.

How old do you have to be to fly from Klagenfurt Airport to London Heathrow Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Klagenfurt Airport to London Heathrow Airport.

What documentation or ID do you need to fly to London Heathrow Airport?

The necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

£145 Cheap Flights from Klagenfurt to London Heathrow Airport in 2026/27

Find the cheapest flights from Klagenfurt to London

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

11:40 - 08:20KLU Klagenfurt-LHR London Heathrow

21h 40m1 stop Vienna Intl

06:00 - 10:30LHR London Heathrow-KLU Klagenfurt

3h 30m1 stop Vienna Intl

£190Austrian Airlines

Thu, 26 Nov - Sun, 29 Nov

11:15 - 21:40KLU Klagenfurt-LHR London Heathrow

11h 25m1 stop Vienna Intl

06:00 - 10:30LHR London Heathrow-KLU Klagenfurt

3h 30m1 stop Vienna Intl

£192Austrian Airlines

Fri, 11 Dec - Sun, 13 Dec

11:15 - 21:40KLU Klagenfurt-LHR London Heathrow

11h 25m1 stop Vienna Intl

06:00 - 10:30LHR London Heathrow-KLU Klagenfurt

3h 30m1 stop Vienna Intl

£192Austrian Airlines

Fri, 27 Nov - Sun, 29 Nov

11:15 - 21:40KLU Klagenfurt-LHR London Heathrow

11h 25m1 stop Vienna Intl

06:00 - 10:30LHR London Heathrow-KLU Klagenfurt

3h 30m1 stop Vienna Intl

£192Austrian Airlines

Fri, 11 Dec - Sun, 13 Dec

11:40 - 08:20KLU Klagenfurt-LHR London Heathrow

21h 40m1 stop Vienna Intl

06:00 - 10:30LHR London Heathrow-KLU Klagenfurt

3h 30m1 stop Vienna Intl

£192Austrian Airlines

Thu, 10 Dec - Sun, 13 Dec

11:40 - 21:40KLU Klagenfurt-LHR London Heathrow

11h 00m1 stop Vienna Intl

19:25 - 10:30LHR London Heathrow-KLU Klagenfurt

14h 05m1 stop Vienna Intl

£192Austrian Airlines

Wed, 2 Dec - Sat, 5 Dec

11:15 - 22:55KLU Klagenfurt-LHR London Heathrow

12h 40m2 stops Vienna Intl Munich Franz Josef Strauss

06:00 - 10:30LHR London Heathrow-KLU Klagenfurt

3h 30m1 stop Vienna Intl

£210Multiple Airlines

Fri, 27 Nov - Sun, 29 Nov

11:15 - 14:05KLU Klagenfurt-LHR London Heathrow

3h 50m1 stop Vienna Intl

13:50 - 10:30LHR London Heathrow-KLU Klagenfurt

19h 40m2 stops Munich Franz Josef Strauss Vienna Intl

£211Multiple Airlines

Mon, 15 Feb - Sat, 20 Feb

11:15 - 18:40KLU Klagenfurt-LHR London Heathrow

8h 25m1 stop Vienna Intl

13:50 - 10:30LHR London Heathrow-KLU Klagenfurt

19h 40m2 stops Munich Franz Josef Strauss Vienna Intl

£213Multiple Airlines

Mon, 1 Mar - Sat, 6 Mar

11:15 - 18:30KLU Klagenfurt-LHR London Heathrow

8h 15m2 stops Vienna Intl Munich Franz Josef Strauss

09:05 - 10:30LHR London Heathrow-KLU Klagenfurt

24h 25m1 stop Vienna Intl

£214Multiple Airlines

Thu, 14 Jan - Sat, 16 Jan

Cheap last-minute flights

Enter your travel dates to find the best prices.

11:40 - 21:40KLU Klagenfurt-LHR London Heathrow

11h 00m1 stop Vienna Intl

06:00 - 10:55LHR London Heathrow-KLU Klagenfurt

3h 55m1 stop Vienna Intl

£292Austrian Airlines

Mon, 9 Nov - Wed, 2 Dec

11:15 - 21:40KLU Klagenfurt-LHR London Heathrow

11h 25m1 stop Vienna Intl

06:00 - 10:30LHR London Heathrow-KLU Klagenfurt

3h 30m1 stop Vienna Intl

£310Austrian Airlines

Sun, 8 Nov - Tue, 1 Dec

11:15 - 08:20KLU Klagenfurt-LHR London Heathrow

22h 05m1 stop Vienna Intl

09:05 - 10:55LHR London Heathrow-KLU Klagenfurt

24h 50m1 stop Vienna Intl

£332Austrian Airlines

Sun, 8 Nov - Sun, 15 Nov

11:15 - 08:20KLU Klagenfurt-LHR London Heathrow

22h 05m1 stop Vienna Intl

06:00 - 10:30LHR London Heathrow-KLU Klagenfurt

3h 30m1 stop Vienna Intl

£333Austrian Airlines

Fri, 6 Nov - Fri, 13 Nov

11:40 - 18:40KLU Klagenfurt-LHR London Heathrow

8h 00m1 stop Vienna Intl

06:00 - 10:30LHR London Heathrow-KLU Klagenfurt

3h 30m1 stop Vienna Intl

£336Austrian Airlines

Mon, 9 Nov - Fri, 13 Nov

11:15 - 17:05KLU Klagenfurt-LHR London Heathrow

6h 50m2 stops Vienna Intl Munich Franz Josef Strauss

06:00 - 10:30LHR London Heathrow-KLU Klagenfurt

3h 30m1 stop Vienna Intl

£347Multiple Airlines

Sun, 8 Nov - Tue, 1 Dec

11:40 - 17:05KLU Klagenfurt-LHR London Heathrow

6h 25m2 stops Vienna Intl Munich Franz Josef Strauss

06:00 - 10:55LHR London Heathrow-KLU Klagenfurt

3h 55m1 stop Vienna Intl

£347Multiple Airlines

Mon, 9 Nov - Wed, 2 Dec

11:15 - 08:20KLU Klagenfurt-LHR London Heathrow

22h 05m1 stop Vienna Intl

14:50 - 10:55LHR London Heathrow-KLU Klagenfurt

19h 05m1 stop Vienna Intl

£364Austrian Airlines

Sun, 8 Nov - Wed, 11 Nov

11:40 - 21:40KLU Klagenfurt-LHR London Heathrow

11h 00m1 stop Vienna Intl

06:00 - 10:55LHR London Heathrow-KLU Klagenfurt

3h 55m1 stop Vienna Intl

£364Austrian Airlines

Mon, 9 Nov - Wed, 11 Nov

11:40 - 17:05KLU Klagenfurt-LHR London Heathrow

6h 25m2 stops Vienna Intl Munich Franz Josef Strauss

06:00 - 10:30LHR London Heathrow-KLU Klagenfurt

3h 30m1 stop Vienna Intl

£372Multiple Airlines

Mon, 9 Nov - Fri, 13 Nov

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Austrian Airlines flights from Klagenfurt to London Heathrow Airport

Our best Austrian Airlines deals on Klagenfurt to London Heathrow Airport flight tickets

Austrian Airlines

26 Nov

KLU11:40Klagenfurt

21h 40m

1 stop

LHR08:20London Heathrow

29 Nov

LHR06:00London Heathrow

3h 30m

1 stop

KLU10:30Klagenfurt

£190

Austrian Airlines

11 Dec

KLU11:15Klagenfurt

11h 25m

1 stop

LHR21:40London Heathrow

13 Dec

LHR06:00London Heathrow

3h 30m

1 stop

KLU10:30Klagenfurt

£192

Austrian Airlines

10 Dec

KLU11:40Klagenfurt

21h 40m

1 stop

LHR08:20London Heathrow

13 Dec

LHR06:00London Heathrow

3h 30m

1 stop

KLU10:30Klagenfurt

£192

Lufthansa flights from Klagenfurt to London Heathrow Airport

Our best Lufthansa deals on Klagenfurt to London Heathrow Airport flight tickets

Lufthansa

26 Nov

KLU11:40Klagenfurt

7h 50m

2 stops

LHR18:30London Heathrow

29 Nov

LHR07:40London Heathrow

26h 15m

2 stops

KLU10:55Klagenfurt

£221

Lufthansa

27 Nov

KLU11:15Klagenfurt

26h 45m

2 stops

LHR13:00London Heathrow

29 Nov

LHR07:40London Heathrow

26h 15m

2 stops

KLU10:55Klagenfurt

£226

Lufthansa

15 Feb

KLU11:15Klagenfurt

8h 20m

2 stops

LHR18:35London Heathrow

20 Feb

LHR13:50London Heathrow

19h 40m

2 stops

KLU10:30Klagenfurt

£229

momondo 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

Cheapest return flight

KlagenfurtLondon

KLU Klagenfurt - LHR London Heathrow

KLULHR

Klagenfurt

Thu 26/11

11:40-08:20

1 stop21h 40m

London Heathrow

Sun 29/11

06:00-10:30

1 stop3h 30m

£190

Fastest return journey

KlagenfurtLondon

KLU Klagenfurt - LHR London Heathrow

KLULHR

Klagenfurt

Fri 11/12

11:15-21:40

1 stop11h 25m

London Heathrow

Sun 13/12

06:00-10:30

1 stop3h 30m

£192

KlagenfurtLondon

KLU Klagenfurt - LHR London Heathrow

KLULHR

Klagenfurt

Fri 27/11

11:15-21:40

1 stop11h 25m

London Heathrow

Sun 29/11

06:00-10:30

1 stop3h 30m

£192

KlagenfurtLondon

KLU Klagenfurt - LHR London Heathrow

KLULHR

Klagenfurt

Fri 11/12

11:15-21:40

1 stop11h 25m

London Heathrow

Sun 13/12

06:00-10:30

1 stop3h 30m

£192

KlagenfurtLondon

KLU Klagenfurt - LHR London Heathrow

KLULHR

Klagenfurt

Thu 10/12

11:40-08:20

1 stop21h 40m

London Heathrow

Sun 13/12

06:00-10:30

1 stop3h 30m

£192

KlagenfurtLondon

KLU Klagenfurt - LHR London Heathrow

KLULHR

Klagenfurt

Wed 2/12

11:40-21:40

1 stop11h 00m

London Heathrow

Sat 5/12

19:25-10:30

1 stop14h 05m

£192

KlagenfurtLondon

KLU Klagenfurt - LHR London Heathrow

KLULHR

Klagenfurt

Fri 27/11

11:15-22:55

2 stops12h 40m

London Heathrow

Sun 29/11

06:00-10:30

1 stop3h 30m

£210

KlagenfurtLondon

KLU Klagenfurt - LHR London Heathrow

KLULHR

Klagenfurt

Mon 15/2

11:15-14:05

1 stop3h 50m

London Heathrow

Sat 20/2

13:50-10:30

2 stops19h 40m

£211

KlagenfurtLondon

KLU Klagenfurt - LHR London Heathrow

KLULHR

Klagenfurt

Mon 1/3

11:15-18:40

1 stop8h 25m

London Heathrow

Sat 6/3

13:50-10:30

2 stops19h 40m

£213

KlagenfurtLondon

KLU Klagenfurt - LHR London Heathrow

KLULHR

Klagenfurt

Thu 14/1

11:15-18:30

2 stops8h 15m

London Heathrow

Sat 16/1

09:05-10:30

1 stop24h 25m

£214

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Klagenfurt to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Klagenfurt to London Heathrow?

Austrian Airlines and Lufthansa are the most popular carriers operating from Klagenfurt to London Heathrow

When to book flights from Klagenfurt to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Klagenfurt to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Klagenfurt to London Heathrow Airport (KLU to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Klagenfurt to London Heathrow Airport

Best price found	£145
Fastest flight time	3h 50m
Direct flights	None

The best one-way flight to London Heathrow Airport from Klagenfurt in the past 72 hours is £145. The best return flight deal from Klagenfurt to London Heathrow Airport found on momondo in the last 72 hours is £190.

The fastest flight from Klagenfurt to London Heathrow Airport takes 3h 50m

There are no direct flights from Klagenfurt to London Heathrow Airport. There are no popular flight routes from Klagenfurt to London Heathrow Airport.

Search flight deals

Frequently asked questions about flying from Klagenfurt to London Heathrow Airport

How far is Klagenfurt to London Heathrow by plane?
The distance between Klagenfurt and London Heathrow is about 745.3 mi. Typically, this will take 3h 50m by plane in normal conditions.
When did momondo last update prices for flights from Klagenfurt Airport to London Heathrow Airport?
Prices for flights from Klagenfurt Airport to London Heathrow Airport were last updated today.
How old do you have to be to fly from Klagenfurt Airport to London Heathrow Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Klagenfurt Airport to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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Why should I use momondo to find a flight deal from Klagenfurt to London?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Klagenfurt.

Can I find flights from Klagenfurt to London with flexible booking policies on momondo?

Flights from Klagenfurt to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Klagenfurt to London?

Once all potential Klagenfurt to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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Of course. momondo tracks the price of Klagenfurt to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.