What day of the week experiences the fewest flight delays on this route?

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Klagenfurt to London flights?

According to our data, Ryanair have had the fewest delays on this route over the last 12 months, with about 31% of their flights experiencing any sort of delay.

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

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

What is the most punctual flight time for Klagenfurt to London flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

How often are flights from Klagenfurt to London delayed?

Historically, on average around 32% of flights between Klagenfurt and London have experienced a delay on any given week. The average delay length over the past 12 months has been 105 minutes.

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.

£17 Cheap Flights from Klagenfurt to London in 2025/26

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Find the cheapest flights from Klagenfurt to London

Round-trip

One-way

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Cheap return flights

Enter your travel dates to find the best prices.

10:00 - 11:10

KLU

STN

2h 10mdirect

05:55 - 09:05

STN

KLU

2h 10mdirect

£33Ryanair

Mon, 26 Jan - Sat, 31 Jan

10:00 - 11:10

KLU

STN

2h 10mdirect

05:55 - 09:05

STN

KLU

2h 10mdirect

£34Ryanair

Mon, 19 Jan - Sat, 24 Jan

09:30 - 10:40

KLU

STN

2h 10mdirect

05:55 - 09:05

STN

KLU

2h 10mdirect

£34Ryanair

Sat, 24 Jan - Sat, 31 Jan

09:30 - 10:40

KLU

STN

2h 10mdirect

06:10 - 09:20

STN

KLU

2h 10mdirect

£35Ryanair

Sat, 17 Jan - Mon, 19 Jan

09:30 - 10:40

KLU

STN

2h 10mdirect

06:10 - 09:20

STN

KLU

2h 10mdirect

£37Ryanair

Sat, 17 Jan - Mon, 19 Jan

09:30 - 10:40

KLU

STN

2h 10mdirect

06:10 - 09:20

STN

KLU

2h 10mdirect

£40Ryanair

Sat, 10 Jan - Mon, 12 Jan

16:00 - 13:05

KLU

LHR

22h 05m1 stop

06:00 - 10:30

LHR

KLU

3h 30m1 stop

£173Austrian Airlines

Sat, 24 Jan - Sat, 31 Jan

15:00 - 08:20

KLU

LHR

18h 20m1 stop

06:00 - 14:00

LHR

KLU

7h 00m1 stop

£175Austrian Airlines

Wed, 8 Apr - Sat, 11 Apr

15:15 - 18:40

KLU

LHR

4h 25m1 stop

09:05 - 13:50

LHR

KLU

3h 45m1 stop

£176Austrian Airlines

Fri, 9 Jan - Sun, 11 Jan

17:55 - 19:10

KLU

LGW

26h 15m2 stops

21:45 - 15:10

LGW

KLU

16h 25m2 stops

£184Multiple Airlines

Wed, 8 Apr - Sun, 12 Apr

Austrian Airlines flights from Klagenfurt to London

Our best Austrian Airlines deals on Klagenfurt to London flight tickets

Austrian Airlines

8 Jan

KLU15:15Klagenfurt

4h 25m

1 stop

LHR18:40London Heathrow

11 Jan

LHR09:05London Heathrow

3h 45m

1 stop

KLU13:50Klagenfurt

£173

Find similar

Austrian Airlines

8 Apr

KLU15:00Klagenfurt

18h 20m

1 stop

LHR08:20London Heathrow

11 Apr

LHR06:00London Heathrow

7h 00m

1 stop

KLU14:00Klagenfurt

£175

Find similar

Austrian Airlines

9 Jan

KLU15:15Klagenfurt

4h 25m

1 stop

LHR18:40London Heathrow

11 Jan

LHR09:05London Heathrow

3h 45m

1 stop

KLU13:50Klagenfurt

£176

Find similar

Lufthansa flights from Klagenfurt to London

Our best Lufthansa deals on Klagenfurt to London flight tickets

Lufthansa

10 Jan

KLU16:00Klagenfurt

6h 00m

2 stops

LHR21:00London Heathrow

12 Jan

LHR07:40London Heathrow

5h 10m

2 stops

KLU13:50Klagenfurt

£207

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

£208

Find similar

Lufthansa

12 Mar

KLU14:50Klagenfurt

9h 05m

2 stops

LHR22:55London Heathrow

19 Mar

LHR06:35London Heathrow

6h 20m

2 stops

KLU13:55Klagenfurt

£212

Find similar

Fly from

Fly to

Route

Depart

Return

Price

KlagenfurtLondon

KLU - STN

KLUSTN

Klagenfurt

Mon 26/1

10:00-11:10

Nonstop2h 10m

London Stansted

Sat 31/1

05:55-09:05

Nonstop2h 10m

£33

KlagenfurtLondon

KLU - STN

KLUSTN

Klagenfurt

Mon 19/1

10:00-11:10

Nonstop2h 10m

London Stansted

Sat 24/1

05:55-09:05

Nonstop2h 10m

£34

KlagenfurtLondon

KLU - STN

KLUSTN

Klagenfurt

Sat 24/1

09:30-10:40

Nonstop2h 10m

London Stansted

Sat 31/1

05:55-09:05

Nonstop2h 10m

£34

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

£35

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

£37

KlagenfurtLondon

KLU - STN

KLUSTN

Klagenfurt

Sat 10/1

09:30-10:40

Nonstop2h 10m

London Stansted

Mon 12/1

06:10-09:20

Nonstop2h 10m

£40

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Sat 24/1

16:00-13:05

1 stop22h 05m

London Heathrow

Sat 31/1

06:00-10:30

1 stop3h 30m

£173

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Wed 8/4

15:00-08:20

1 stop18h 20m

London Heathrow

Sat 11/4

06:00-14:00

1 stop7h 00m

£175

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Fri 9/1

15:15-18:40

1 stop4h 25m

London Heathrow

Sun 11/1

09:05-13:50

1 stop3h 45m

£176

KlagenfurtLondon

KLU - LGW

KLULGW

Klagenfurt

Wed 8/4

17:55-19:10

2 stops26h 15m

London Gatwick

Sun 12/4

21:45-15:10

2 stops16h 25m

£184

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

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

Prices

Airlines

Delays

Other information

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 £46, 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 £48.

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 December 2025, prices for Klagenfurt to London flights are approximately 86% more expensive 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, Thu and Sun
Airports in London	6 airports

The fastest flight from Klagenfurt to London takes 2h 05m

Direct flights go from Klagenfurt to London on Tuesday, Thursday and Sunday. Airline offering direct flights is Ryanair..

There are 6 airports in London. From Klagenfurt there are direct flights to London Stansted (STN).

Search flight deals

How far is Klagenfurt to London by plane?
There are 732.8 mi between Klagenfurt and London. By plane, this route typically takes 2h 05m.
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?
momondo data reveals that the most frequently booked plane model on the route from Klagenfurt to London is Boeing 737-800 Passenger/BBJ2 (winglets), representing 81.43% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 13.26%, Airbus A320-100/200 at 2.65%, and Airbus A319 at 1.33%.

Eastbourne

Milton Keynes

Luton

Gatwick

Maidstone

Slough

Southend-on-Sea

Canterbury

Ipswich

Ilford

Guildford

Hayes

Chelmsford

Dover

Worthing

Colchester

Bedford

Ramsgate

Hounslow

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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Cheap flights from Klagenfurt to London from £17

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 19/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Austrian Airlines flights from Klagenfurt to London

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Our best Lufthansa deals on Klagenfurt to London flight tickets

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

See travel insights to London from

How to get the cheapest flight ticket from Klagenfurt to London

What is the cheapest month to fly to London?

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 December 2025, prices for Klagenfurt to London flights are approximately 86% more expensive when compared to flights at the same time last year.

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

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

How often are flights from Klagenfurt to London delayed?

Historically, on average around 32% of flights between Klagenfurt and London have experienced a delay on any given week. The average delay length over the past 12 months has been 105 minutes.

What is the most punctual flight time for Klagenfurt to London flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Klagenfurt to London flights?

According to our data, Ryanair have had the fewest delays on this route over the last 12 months, with about 31% of their flights experiencing any sort of delay.

When to book flights from Klagenfurt to London

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

Direct flights

Airports in London

How far is Klagenfurt to London by plane?

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

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

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

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

Travelling to a place near London?

Why use momondo?

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

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

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

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

An easier way to manage your London trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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