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Cheap flights from London to Klagenfurt from £118

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from London to Klagenfurt

Cheap return flights

Enter your travel dates to find the best prices.
Austrian Airlines Logo
06:00 - 10:30LHR  London Heathrow-KLU Klagenfurt
3h 30m1 stop Vienna Intl
Austrian Airlines Logo
11:15 - 18:40KLU  Klagenfurt-LHR London Heathrow
8h 25m1 stop Vienna Intl
£185Austrian Airlines
Tue, 1 Dec - Tue, 8 Dec
Austrian Airlines Logo
06:00 - 10:30LHR  London Heathrow-KLU Klagenfurt
3h 30m1 stop Vienna Intl
Austrian Airlines Logo
11:15 - 18:40KLU  Klagenfurt-LHR London Heathrow
8h 25m1 stop Vienna Intl
£186Austrian Airlines
Tue, 24 Nov - Tue, 1 Dec
Austrian Airlines Logo
06:00 - 10:30LHR  London Heathrow-KLU Klagenfurt
3h 30m1 stop Vienna Intl
Austrian Airlines Logo
11:15 - 21:40KLU  Klagenfurt-LHR London Heathrow
11h 25m1 stop Vienna Intl
£187Austrian Airlines
Tue, 1 Dec - Tue, 15 Dec
Multiple Airlines Logo
06:45 - 12:20STN  London Stansted-KLU Klagenfurt
4h 35m1 stop Cologne Köln/Bonn
Multiple Airlines Logo
13:00 - 21:05KLU  Klagenfurt-STN London Stansted
9h 05m1 stop Cologne Köln/Bonn
£198Multiple Airlines
Fri, 6 Nov - Mon, 9 Nov
Multiple Airlines Logo
06:00 - 10:30LHR  London Heathrow-KLU Klagenfurt
3h 30m1 stop Vienna Intl
Multiple Airlines Logo
11:15 - 15:50KLU  Klagenfurt-LHR London Heathrow
29h 35m2 stops Vienna Intl Munich Franz Josef Strauss
£200Multiple Airlines
Tue, 24 Nov - Tue, 1 Dec
Austrian Airlines Logo
06:00 - 10:55LHR  London Heathrow-KLU Klagenfurt
3h 55m1 stop Vienna Intl
Austrian Airlines Logo
11:15 - 18:40KLU  Klagenfurt-LHR London Heathrow
8h 25m1 stop Vienna Intl
£200Austrian Airlines
Thu, 3 Dec - Tue, 8 Dec
Multiple Airlines Logo
06:00 - 10:30LHR  London Heathrow-KLU Klagenfurt
3h 30m1 stop Vienna Intl
Multiple Airlines Logo
11:15 - 22:55KLU  Klagenfurt-LHR London Heathrow
12h 40m2 stops Vienna Intl Munich Franz Josef Strauss
£201Multiple Airlines
Tue, 1 Dec - Tue, 15 Dec
Multiple Airlines Logo
06:00 - 10:30LHR  London Heathrow-KLU Klagenfurt
3h 30m1 stop Vienna Intl
Multiple Airlines Logo
11:15 - 22:55KLU  Klagenfurt-LHR London Heathrow
12h 40m2 stops Vienna Intl Munich Franz Josef Strauss
£201Multiple Airlines
Tue, 1 Dec - Tue, 8 Dec
Austrian Airlines Logo
06:00 - 10:55LHR  London Heathrow-KLU Klagenfurt
3h 55m1 stop Vienna Intl
Austrian Airlines Logo
11:40 - 08:20KLU  Klagenfurt-LHR London Heathrow
21h 40m1 stop Vienna Intl
£202Austrian Airlines
Thu, 12 Nov - Mon, 16 Nov
Austrian Airlines Logo
06:00 - 10:55LHR  London Heathrow-KLU Klagenfurt
3h 55m1 stop Vienna Intl
Austrian Airlines Logo
11:40 - 08:20KLU  Klagenfurt-LHR London Heathrow
21h 40m1 stop Vienna Intl
£203Austrian Airlines
Thu, 10 Dec - Mon, 14 Dec

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Austrian Airlines flights from London to Klagenfurt

Our best Austrian Airlines deals on London to Klagenfurt flight tickets
Austrian Airlines
1 Dec
LHR06:00London Heathrow
3h 30m
1 stop
KLU10:30Klagenfurt
8 Dec
KLU11:15Klagenfurt
8h 25m
1 stop
LHR18:40London Heathrow
£185
Austrian Airlines
24 Nov
LHR06:00London Heathrow
3h 30m
1 stop
KLU10:30Klagenfurt
1 Dec
KLU11:15Klagenfurt
8h 25m
1 stop
LHR18:40London Heathrow
£186
Austrian Airlines
1 Dec
LHR06:00London Heathrow
3h 30m
1 stop
KLU10:30Klagenfurt
15 Dec
KLU11:15Klagenfurt
11h 25m
1 stop
LHR21:40London Heathrow
£187

Lufthansa flights from London to Klagenfurt

Our best Lufthansa deals on London to Klagenfurt flight tickets
Lufthansa
24 Nov
LHR16:40London Heathrow
17h 15m
2 stops
KLU10:55Klagenfurt
1 Dec
KLU11:15Klagenfurt
6h 50m
2 stops
LHR17:05London Heathrow
£215
Lufthansa
3 Dec
LHR08:45London Heathrow
24h 45m
2 stops
KLU10:30Klagenfurt
8 Dec
KLU11:15Klagenfurt
10h 45m
2 stops
LHR21:00London Heathrow
£219
Lufthansa
10 Dec
LHR06:35London Heathrow
26h 55m
2 stops
KLU10:30Klagenfurt
14 Dec
KLU11:40Klagenfurt
7h 55m
2 stops
LHR18:35London Heathrow
£230

momondo Fare Finder

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

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Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

LondonKlagenfurt

LHR London Heathrow - KLU Klagenfurt

LHRKLU

London Heathrow

Tue 1/12

06:00-10:30

1 stop3h 30m

Klagenfurt

Tue 8/12

11:15-18:40

1 stop8h 25m

£185

LondonKlagenfurt

LHR London Heathrow - KLU Klagenfurt

LHRKLU

London Heathrow

Tue 24/11

06:00-10:30

1 stop3h 30m

Klagenfurt

Tue 1/12

11:15-18:40

1 stop8h 25m

£186

LondonKlagenfurt

LHR London Heathrow - KLU Klagenfurt

LHRKLU

London Heathrow

Tue 1/12

06:00-10:30

1 stop3h 30m

Klagenfurt

Tue 15/12

11:15-21:40

1 stop11h 25m

£187

LondonKlagenfurt

STN London Stansted - KLU Klagenfurt

STNKLU

London Stansted

Fri 6/11

06:45-12:20

1 stop4h 35m

Klagenfurt

Mon 9/11

13:00-21:05

1 stop9h 05m

£198

LondonKlagenfurt

LHR London Heathrow - KLU Klagenfurt

LHRKLU

London Heathrow

Tue 24/11

06:00-10:30

1 stop3h 30m

Klagenfurt

Tue 1/12

11:15-15:50

2 stops29h 35m

£200

LondonKlagenfurt

LHR London Heathrow - KLU Klagenfurt

LHRKLU

London Heathrow

Thu 3/12

06:00-10:55

1 stop3h 55m

Klagenfurt

Tue 8/12

11:15-18:40

1 stop8h 25m

£200

LondonKlagenfurt

LHR London Heathrow - KLU Klagenfurt

LHRKLU

London Heathrow

Tue 1/12

06:00-10:30

1 stop3h 30m

Klagenfurt

Tue 15/12

11:15-22:55

2 stops12h 40m

£201

LondonKlagenfurt

LHR London Heathrow - KLU Klagenfurt

LHRKLU

London Heathrow

Tue 1/12

06:00-10:30

1 stop3h 30m

Klagenfurt

Tue 8/12

11:15-22:55

2 stops12h 40m

£201

LondonKlagenfurt

LHR London Heathrow - KLU Klagenfurt

LHRKLU

London Heathrow

Thu 12/11

06:00-10:55

1 stop3h 55m

Klagenfurt

Mon 16/11

11:40-08:20

1 stop21h 40m

£202

LondonKlagenfurt

LHR London Heathrow - KLU Klagenfurt

LHRKLU

London Heathrow

Thu 10/12

06:00-10:55

1 stop3h 55m

Klagenfurt

Mon 14/12

11:40-08:20

1 stop21h 40m

£203

Flights are sorted by cheapest return flights first.

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

How to get the cheapest flight ticket from London to Klagenfurt

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 month to fly to Klagenfurt?

The month of January is, on average, the cheapest month to fly to Klagenfurt from London, with most prices found around £36. If you don’t want to visit Klagenfurt in January, then you should wait until October to fly from London, when ticket prices are also cheap, with an average price of £46.

What is the cheapest day to depart on your flight to Klagenfurt?

According to our data, Monday is the cheapest day to fly to Klagenfurt from London. The lowest ticket price found for a Monday departure recently was £100. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around £123. These prices are subject to change though, so be sure to set up a Price Alert for flights to Klagenfurt.

What is the cheapest London to Klagenfurt flight route?

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

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

There is only 1 cabin class available to choose from on London to Klagenfurt 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 London to Klagenfurt flights?

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

How have London to Klagenfurt flight prices changed over time?

As of October 2026, prices for London to Klagenfurt flights are approximately 156% more expensive when compared to flights at the same time last year.

When to book flights from London to Klagenfurt

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

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

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

Best price found

£118

Fastest flight time

3h 55m

Direct flights

None
The best one-way flight to Klagenfurt from London in the past 72 hours is £118. The best return flight deal from London to Klagenfurt found on momondo in the last 72 hours is £185.
The fastest flight from London to Klagenfurt takes 3h 55m
There are no direct flights from London to Klagenfurt. There are no popular flight routes from London to Klagenfurt.
Search flight deals

Frequently asked questions about flying from London to Klagenfurt

  • How far is London to Klagenfurt by plane?

    London and Klagenfurt are 732.8 mi apart from one another. In terms of flight time, this usually takes a little over 3h 55m.

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

    Prices for flights from London to Klagenfurt Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from London to Klagenfurt Airport?

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Klagenfurt Airport.

  • What documentation or ID do you need to fly to Klagenfurt Airport?

    The travel and health documents required for your trip to Klagenfurt Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Klagenfurt Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

  • What is the most popular airline from London to Klagenfurt?

Best airlines flying from London to Klagenfurt

Compare and see reviews for airlines that fly from London to Klagenfurt with momondo
Airline
Rating
Free Cancellation
Price
RyanairPriceFrom £39Free CancellationRating
6.9
5,451 reviews
Search Ryanair flights
Austrian AirlinesPriceFrom £168Free CancellationRating
7.5
984 reviews
Search Austrian Airlines flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Klagenfurt for you.

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

Yes. momondo enables you to select and highlight flights to Klagenfurt from London with this policy.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Klagenfurt.

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

Price alerts on flights to Klagenfurt from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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