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Cheap flights from London to Klagenfurt from £19

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Klagenfurt departing on 21/3. 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 London to Klagenfurt

Cheap return flights

Enter your travel dates to find the best prices.
Ryanair Logo
05:55 - 09:05
STN
-
KLU
2h 10mdirect
Ryanair Logo
10:00 - 11:10
KLU
-
STN
2h 10mdirect
£36Ryanair
Sat, 31 Jan - Mon, 2 Feb
Ryanair Logo
05:55 - 09:05
STN
-
KLU
2h 10mdirect
Ryanair Logo
10:00 - 11:10
KLU
-
STN
2h 10mdirect
£37Ryanair
Sat, 28 Feb - Mon, 2 Mar
Ryanair Logo
05:55 - 09:05
STN
-
KLU
2h 10mdirect
Ryanair Logo
09:30 - 10:40
KLU
-
STN
2h 10mdirect
£42Ryanair
Sat, 7 Mar - Sat, 14 Mar
Ryanair Logo
08:10 - 11:15
STN
-
KLU
2h 05mdirect
Ryanair Logo
10:30 - 11:35
KLU
-
STN
2h 05mdirect
£107Ryanair
Sat, 27 Jun - Mon, 29 Jun
Multiple Airlines Logo
06:10 - 09:20
STN
-
KLU
2h 10mdirect
Multiple Airlines Logo
16:00 - 19:10
KLU
-
STN
4h 10m
1 stop
£150Multiple Airlines
Mon, 9 Mar - Sat, 14 Mar
Multiple Airlines Logo
06:10 - 09:20
STN
-
KLU
2h 10mdirect
Multiple Airlines Logo
16:00 - 23:45
KLU
-
STN
8h 45m
2 stops
£154Multiple Airlines
Mon, 9 Mar - Sat, 14 Mar
Austrian Airlines Logo
09:05 - 13:55
LHR
-
KLU
3h 50m
1 stop
Austrian Airlines Logo
16:00 - 21:40
KLU
-
LHR
6h 40m
1 stop
£168Austrian Airlines
Mon, 9 Mar - Sat, 14 Mar
Austrian Airlines Logo
06:00 - 13:50
LHR
-
KLU
6h 50m
1 stop
Austrian Airlines Logo
15:15 - 21:40
KLU
-
LHR
7h 25m
1 stop
£168Austrian Airlines
Fri, 20 Feb - Wed, 25 Feb
Lufthansa Logo
13:50 - 23:20
LHR
-
KLU
8h 30m
2 stops
Lufthansa Logo
14:35 - 21:00
KLU
-
LHR
7h 25m
2 stops
£197Lufthansa
Fri, 6 Mar - Fri, 13 Mar
Lufthansa Logo
18:15 - 10:30
LCY
-
KLU
15h 15m
2 stops
Lufthansa Logo
15:15 - 09:05
KLU
-
LCY
18h 50m
2 stops
£238Lufthansa
Fri, 20 Feb - Wed, 25 Feb

Ryanair flights from London to Klagenfurt

Our best Ryanair deals on London to Klagenfurt flight tickets
Ryanair
31 Jan
STN05:55London Stansted
2h 10m
KLU09:05Klagenfurt
2 Feb
KLU10:00Klagenfurt
2h 10m
STN11:10London Stansted
£36
Ryanair
28 Feb
STN05:55London Stansted
2h 10m
KLU09:05Klagenfurt
2 Mar
KLU10:00Klagenfurt
2h 10m
STN11:10London Stansted
£37
Ryanair
7 Mar
STN05:55London Stansted
2h 10m
KLU09:05Klagenfurt
14 Mar
KLU09:30Klagenfurt
2h 10m
STN10:40London Stansted
£42

Austrian Airlines flights from London to Klagenfurt

Our best Austrian Airlines deals on London to Klagenfurt flight tickets
Austrian Airlines
5 Mar
LHR06:00London Heathrow
6h 55m
1 stop
KLU13:55Klagenfurt
8 Mar
KLU14:35Klagenfurt
8h 05m
1 stop
LHR21:40London Heathrow
£167
Austrian Airlines
9 Mar
LHR09:05London Heathrow
3h 50m
1 stop
KLU13:55Klagenfurt
14 Mar
KLU16:00Klagenfurt
6h 40m
1 stop
LHR21:40London Heathrow
£168
Austrian Airlines
18 Feb
LHR06:00London Heathrow
6h 50m
1 stop
KLU13:50Klagenfurt
25 Feb
KLU15:15Klagenfurt
4h 25m
1 stop
LHR18:40London Heathrow
£168

momondo Fare Finder

 
Customise your flight search to find flights from London to Klagenfurt 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 22 January 2026.
Use the filters below to find and compare flights from London to Klagenfurt that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonKlagenfurt

STN - KLU

STNKLU

London Stansted

Sat 31/1

05:55-09:05

Nonstop2h 10m

Klagenfurt

Mon 2/2

10:00-11:10

Nonstop2h 10m

£36

LondonKlagenfurt

STN - KLU

STNKLU

London Stansted

Sat 28/2

05:55-09:05

Nonstop2h 10m

Klagenfurt

Mon 2/3

10:00-11:10

Nonstop2h 10m

£37

LondonKlagenfurt

STN - KLU

STNKLU

London Stansted

Sat 7/3

05:55-09:05

Nonstop2h 10m

Klagenfurt

Sat 14/3

09:30-10:40

Nonstop2h 10m

£42

LondonKlagenfurt

STN - KLU

STNKLU

London Stansted

Sat 27/6

08:10-11:15

Nonstop2h 05m

Klagenfurt

Mon 29/6

10:30-11:35

Nonstop2h 05m

£107

LondonKlagenfurt

STN - KLU

STNKLU

London Stansted

Mon 9/3

06:10-09:20

Nonstop2h 10m

Klagenfurt

Sat 14/3

16:00-19:10

1 stop4h 10m

£150

LondonKlagenfurt

STN - KLU

STNKLU

London Stansted

Mon 9/3

06:10-09:20

Nonstop2h 10m

Klagenfurt

Sat 14/3

16:00-23:45

2 stops8h 45m

£154

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

Mon 9/3

09:05-13:55

1 stop3h 50m

Klagenfurt

Sat 14/3

16:00-21:40

1 stop6h 40m

£168

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

Fri 20/2

06:00-13:50

1 stop6h 50m

Klagenfurt

Wed 25/2

15:15-21:40

1 stop7h 25m

£168

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

Fri 6/3

13:50-23:20

2 stops8h 30m

Klagenfurt

Fri 13/3

14:35-21:00

2 stops7h 25m

£197

LondonKlagenfurt

LCY - KLU

LCYKLU

London City

Fri 20/2

18:15-10:30

2 stops15h 15m

Klagenfurt

Wed 25/2

15:15-09:05

2 stops18h 50m

£238

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

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 £39.

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

According to our data, Thursday is the cheapest day to fly to Klagenfurt from London. The lowest ticket price found for a Thursday departure recently was £77. 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 £134. These prices are subject to change though, so be sure to set up a Price Alert for flights to Klagenfurt.

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

Our data shows that the cheapest London to Klagenfurt flights are usually those with departure times in the evening. Our users have found flights to Klagenfurt in the evening for as low as £50. In contrast, the most expensive time of day to depart to Klagenfurt is in the morning when prices are around £115.

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 January 2026, prices for London to Klagenfurt flights are approximately 108% 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

£53

Fastest flight time

2h 05m

Direct flights

Tue, Thu and Sun

Airports in Klagenfurt

1 airport
The best flight deal from London to Klagenfurt found on momondo in the last 72 hours is £53
The fastest flight from London to Klagenfurt takes 2h 05m
Direct flights go from London to Klagenfurt on Tuesday, Thursday and Sunday. There are no airlines offering direct flights..
There is 1 airport in Klagenfurt. From London there are direct flights to Klagenfurt (KLU).
Search flight deals

  • 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 2h 05m.

  • 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 £41Free CancellationRating
6.9
5,250 reviews
Search Ryanair flights
Austrian AirlinesPriceFrom £156Free CancellationRating
7.6
894 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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