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Cheap flights from Klagenfurt to London from £14

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Klagenfurt to London departing on 3/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from Klagenfurt to London

Cheap return flights

Enter your travel dates to find the best prices.
Ryanair Logo
09:30 - 10:40KLU-STN
2h 10mdirect
Ryanair Logo
06:10 - 09:20STN-KLU
2h 10mdirect
£40Ryanair
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Sat, 13 Dec - Mon, 15 Dec
Ryanair Logo
09:30 - 10:40KLU-STN
2h 10mdirect
Ryanair Logo
06:10 - 09:20STN-KLU
2h 10mdirect
£41Ryanair
Find Deal
Sat, 17 Jan - Mon, 19 Jan
Ryanair Logo
09:30 - 10:40KLU-STN
2h 10mdirect
Ryanair Logo
06:10 - 09:20STN-KLU
2h 10mdirect
£43Ryanair
Find Deal
Sat, 29 Nov - Mon, 1 Dec
Ryanair Logo
10:00 - 11:10KLU-STN
2h 10mdirect
Ryanair Logo
05:55 - 09:05STN-KLU
2h 10mdirect
£44Ryanair
Find Deal
Mon, 10 Nov - Sat, 15 Nov
Multiple Airlines Logo
10:00 - 11:10KLU-STN
2h 10mdirect
Multiple Airlines Logo
19:35 - 13:50STN-KLU
17h 15m1 stop
£139Multiple Airlines
Find Deal
Mon, 12 Jan - Sat, 17 Jan
Multiple Airlines Logo
05:45 - 13:05KLU-STN
8h 20m1 stop
Multiple Airlines Logo
05:55 - 09:05STN-KLU
2h 10mdirect
£162Multiple Airlines
Find Deal
Tue, 3 Mar - Sat, 7 Mar
Austrian Airlines Logo
05:45 - 18:40KLU-LHR
13h 55m1 stop
Austrian Airlines Logo
06:00 - 13:55LHR-KLU
6h 55m1 stop
£171Austrian Airlines
Find Deal
Thu, 20 Nov - Wed, 26 Nov
Austrian Airlines Logo
14:50 - 21:40KLU-LHR
7h 50m1 stop
Austrian Airlines Logo
06:00 - 13:55LHR-KLU
6h 55m1 stop
£172Austrian Airlines
Find Deal
Fri, 21 Nov - Sun, 23 Nov
Lufthansa Logo
14:50 - 22:55KLU-LHR
9h 05m2 stops
Lufthansa Logo
11:10 - 23:25LHR-KLU
11h 15m2 stops
£213Lufthansa
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Thu, 20 Nov - Wed, 26 Nov
Lufthansa Logo
15:15 - 21:00KLU-LHR
6h 45m2 stops
Lufthansa Logo
07:40 - 13:50LHR-KLU
5h 10m2 stops
£219Lufthansa
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Thu, 8 Jan - Sun, 11 Jan

Austrian Airlines flights from Klagenfurt to London

Our best Austrian Airlines deals on Klagenfurt to London flight tickets
Austrian Airlines
20 Nov
KLU05:45Klagenfurt
13h 55m
1 stop
LHR18:40London Heathrow
26 Nov
LHR06:00London Heathrow
6h 55m
1 stop
KLU13:55Klagenfurt
£171
Find similar
Austrian Airlines
21 Nov
KLU14:50Klagenfurt
7h 50m
1 stop
LHR21:40London Heathrow
23 Nov
LHR06:00London Heathrow
6h 55m
1 stop
KLU13:55Klagenfurt
£172
Find similar
Austrian Airlines
9 Mar
KLU14:50Klagenfurt
4h 50m
1 stop
LHR18:40London Heathrow
14 Mar
LHR06:00London Heathrow
3h 30m
1 stop
KLU10:30Klagenfurt
£173
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Lufthansa flights from Klagenfurt to London

Our best Lufthansa deals on Klagenfurt to London flight tickets
Lufthansa
20 Nov
KLU14:50Klagenfurt
9h 05m
2 stops
LHR22:55London Heathrow
26 Nov
LHR11:10London Heathrow
11h 15m
2 stops
KLU23:25Klagenfurt
£213
Find similar
Lufthansa
8 Jan
KLU15:15Klagenfurt
6h 45m
2 stops
LHR21:00London Heathrow
11 Jan
LHR07:40London Heathrow
5h 10m
2 stops
KLU13:50Klagenfurt
£219
Find similar
Lufthansa
20 Nov
KLU05:45Klagenfurt
11h 55m
2 stops
LCY16:40London City
26 Nov
LCY09:50London City
12h 35m
2 stops
KLU23:25Klagenfurt
£254
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momondo Fare Finder

 
Customise your flight search to find flights from Klagenfurt to London 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, momondo users made 279,928 searches. Data last updated 29 October 2025.
Use the filters below to find and compare flights from Klagenfurt to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

KlagenfurtLondon

KLU - STN

KLUSTN

Klagenfurt

Sat 13/12

09:30-10:40

Nonstop2h 10m

London Stansted

Mon 15/12

06:10-09:20

Nonstop2h 10m

£40

KlagenfurtLondon

KLU - STN

KLUSTN

Klagenfurt

Sat 17/1

09:30-10:40

Nonstop2h 10m

London Stansted

Mon 19/1

06:10-09:20

Nonstop2h 10m

£41

KlagenfurtLondon

KLU - STN

KLUSTN

Klagenfurt

Sat 29/11

09:30-10:40

Nonstop2h 10m

London Stansted

Mon 1/12

06:10-09:20

Nonstop2h 10m

£43

KlagenfurtLondon

KLU - STN

KLUSTN

Klagenfurt

Mon 10/11

10:00-11:10

Nonstop2h 10m

London Stansted

Sat 15/11

05:55-09:05

Nonstop2h 10m

£44

KlagenfurtLondon

KLU - STN

KLUSTN

Klagenfurt

Mon 12/1

10:00-11:10

Nonstop2h 10m

London Stansted

Sat 17/1

19:35-13:50

1 stop17h 15m

£139

KlagenfurtLondon

KLU - STN

KLUSTN

Klagenfurt

Tue 3/3

05:45-13:05

1 stop8h 20m

London Stansted

Sat 7/3

05:55-09:05

Nonstop2h 10m

£162

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Thu 20/11

05:45-18:40

1 stop13h 55m

London Heathrow

Wed 26/11

06:00-13:55

1 stop6h 55m

£171

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Fri 21/11

14:50-21:40

1 stop7h 50m

London Heathrow

Sun 23/11

06:00-13:55

1 stop6h 55m

£172

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Thu 20/11

14:50-22:55

2 stops9h 05m

London Heathrow

Wed 26/11

11:10-23:25

2 stops11h 15m

£213

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Thu 8/1

15:15-21:00

2 stops6h 45m

London Heathrow

Sun 11/1

07:40-13:50

2 stops5h 10m

£219

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Klagenfurt to London

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 typical price of a round-trip flight between Klagenfurt and London?

What is the cheapest month to fly to London?

The cheapest month to fly to London from Klagenfurt is in January. Flight prices, which tend to average around £58, are often lower during this time because this is during the off-season. The month of November is another great option to travel to London, with average flight prices from Klagenfurt averaging around £73.

What is the cheapest Klagenfurt to London flight route?

Fly from Klagenfurt to London Stansted for the best Klagenfurt - London flight prices

What cabin class options are available on Klagenfurt to London flights?

There is only 1 cabin class available to choose from on Klagenfurt to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Klagenfurt to London flights?

No. A direct flight is the cheapest option for a flight between Klagenfurt to London.

How have Klagenfurt to London flight prices changed over time?

As of October 2025, prices for Klagenfurt to London flights are approximately 22% cheaper when compared to flights at the same time last year.

When to book flights from Klagenfurt to London

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

Cheap Klagenfurt to London (KLU to LON) flight deals and tips

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

Fastest flight time

2h 05m

Direct flights

Tue and Sun

Airports in London

1 airport
The fastest flight from Klagenfurt to London takes 2h 05m
Direct flights go from Klagenfurt to London on Tuesday and Sunday. There are no airlines offering direct flights..
There is 1 airport near London: London Stansted (STN)
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  • How far is Klagenfurt to London by plane?

    There are 732.8 mi between Klagenfurt and London. By plane, this route typically takes 2h 10m.

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

    Prices for flights from Klagenfurt Airport to London are updated daily.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Klagenfurt Airport to London.

  • What documentation or ID do you need to fly to London?

    The necessary travel and health documents for your London 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.

  • What is the most popular plane model from Klagenfurt to London?

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Maidstone
Slough
Canterbury
Southend-on-Sea
Ipswich
Ilford
Guildford
Colchester
Dover
Hayes
Chelmsford
Worthing
Dartford
Ramsgate
Bedford
Stansted

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Klagenfurt to London . Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to London from Klagenfurt which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to London from Klagenfurt. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Klagenfurt to London right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Klagenfurt to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport