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Cheap flights from London to Klagenfurt from £26

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
LON — KLU
16 Jul — 23 Jul1
1 adult

Cheap flight deals from London to Klagenfurt

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Klagenfurt (KLU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 11 July 2025.

Round-trip from

£68

One-way from

£26

Popular in

December

Cheapest in

January

Average price

£77

Good round-trip deal

£69 or less

Good one-way deal

£35 or less
Ryanair
  • Ryanair
  • 31/8-7/9
  • Nonstop
  • 4h 10m total
  • London to Klagenfurt
Ryanair
  • Ryanair
  • 9/10
  • Nonstop
  • 2h 05m total
  • London to Klagenfurt
High demand for flights, 3% potential price rise
Cheapest flight prices on average. 5% potential price decrease (£6 potential savings vs. average return price).
Average for round-trip flights in July 2025
Price to beat on a round-trip flight from London (LON) to Klagenfurt.
Price to beat on a one-way flight from London (LON) to Klagenfurt.

Find flight deals from London to Klagenfurt

Cheapest flights from London to Klagenfurt
Explore the most affordable flight options available from London to Klagenfurt. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2025.

Sun 31/816:50STN - KLU
Nonstop2h 05mRyanair
Sun 7/920:30KLU - STN
Nonstop2h 05mRyanair
Deal found 9/7£68
Fri 26/906:10STN - KLU
1 stop9h 05mMultiple Airlines
Sun 28/920:30KLU - STN
Nonstop2h 05mMultiple Airlines
Deal found 9/7£127
Sat 4/1006:00LHR - KLU
1 stop7h 00mAustrian Airlines
Tue 7/1015:00KLU - LHR
1 stop24h 20mAustrian Airlines
Deal found 10/7£177
Sat 4/1009:05LHR - KLU
1 stop3h 55mMultiple Airlines
Tue 7/1015:00KLU - LHR
2 stops6h 45mMultiple Airlines
Deal found 10/7£198
Sat 4/1008:05LGW - KLU
1 stop4h 55mMultiple Airlines
Tue 7/1015:00KLU - LGW
1 stop4h 50mMultiple Airlines
Deal found 10/7£204
Sat 4/1007:25LHR - KLU
2 stops5h 35mLufthansa
Tue 7/1015:00KLU - LHR
2 stops6h 45mLufthansa
Deal found 10/7£216
Mon 11/815:30LTN - KLU
1 stop15h 45mMultiple Airlines
Thu 14/814:55KLU - LTN
1 stop8h 55mMultiple Airlines
Deal found 9/7£224
Tue 30/908:45LCY - KLU
2 stops13h 40mLufthansa
Sat 4/1015:00KLU - LCY
2 stops27h 15mLufthansa
Deal found 9/7£266
Wed 16/707:15LCY - KLU
1 stop8h 05mMultiple Airlines
Thu 17/714:55KLU - LCY
1 stop6h 45mMultiple Airlines
Deal found 9/7£501

Cheapflights 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, Cheapflights users made 858,174 searches. Data last updated 11 July 2025.
Use the filters below to find and compare flights from London to Klagenfurt that are best for you.

Fly from

London

Fly to

Klagenfurt

Route

Depart

Return

Price

LondonKlagenfurt

STN - KLU

STNKLU

London Stansted

Sun 31/8

16:50-19:55

Nonstop2h 05m

Klagenfurt

Sun 7/9

20:30-21:35

Nonstop2h 05m

£68

LondonKlagenfurt

STN - KLU

STNKLU

London Stansted

Fri 26/9

06:10-16:15

1 stop9h 05m

Klagenfurt

Sun 28/9

20:30-21:35

Nonstop2h 05m

£127

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

Sat 4/10

06:00-14:00

1 stop7h 00m

Klagenfurt

Tue 7/10

15:00-14:20

1 stop24h 20m

£177

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

Sat 4/10

09:05-14:00

1 stop3h 55m

Klagenfurt

Tue 7/10

15:00-20:45

2 stops6h 45m

£198

LondonKlagenfurt

LGW - KLU

LGWKLU

London Gatwick

Sat 4/10

08:05-14:00

1 stop4h 55m

Klagenfurt

Tue 7/10

15:00-18:50

1 stop4h 50m

£204

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

Sat 4/10

07:25-14:00

2 stops5h 35m

Klagenfurt

Tue 7/10

15:00-20:45

2 stops6h 45m

£216

LondonKlagenfurt

LTN - KLU

LTNKLU

London Luton

Mon 11/8

15:30-08:15

1 stop15h 45m

Klagenfurt

Thu 14/8

14:55-22:50

1 stop8h 55m

£224

LondonKlagenfurt

LCY - KLU

LCYKLU

London City

Tue 30/9

08:45-23:25

2 stops13h 40m

Klagenfurt

Sat 4/10

15:00-17:15

2 stops27h 15m

£266

LondonKlagenfurt

LCY - KLU

LCYKLU

London City

Sun 24/8

17:50-14:00

2 stops19h 10m

Klagenfurt

Thu 28/8

05:45-16:25

2 stops11h 40m

£506

LondonKlagenfurt

STN - KLU

STNKLU

London Stansted

Thu 11/9

18:55-22:00

Nonstop2h 05m

£32

Flights are sorted by cheapest return flights first.

Deals found on 10/7

Showing 1-10 of 22 results
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Best time to book a flight from London to Klagenfurt

Have a flexible travel schedule? Discover the best time to fly to Klagenfurt from London with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to Klagenfurt

How far ahead should I book a flight from London to Klagenfurt?

Use this chart to determine the optimal time to book a return flight from London to Klagenfurt. Price data was last updated on 27 June 2025.

To ensure you get the cheapest price possible for a flight from London to Klagenfurt, you should look to book at least 77 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest time of day to fly from LON to KLU?

Find hourly flight availability from London to Klagenfurt. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 July 2025.

It’s typically best to fly out from London to Klagenfurt in the afternoon. Doing so could potentially save you 50% on the flight price compared to flying in the morning, which is usually more expensive.

Reviews of airlines servicing Klagenfurt

Get insights into the airlines that provide service to Klagenfurt. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Klagenfurt. Reviews last updated 11 July 2025.
Read through reviews of airlines operating flights from London to Klagenfurt, such as Austrian Airlines, Ryanair, andLufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.1

Boarding

7.6

Overall

7.6

Food

6.8

Comfort

7.3

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

Crew

8.1

Boarding

7.6

Overall

7.6

Food

6.8

Comfort

7.3

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

Crew

8.1

Boarding

7.6

Overall

7.6

Food

6.8

Comfort

7.3

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

Crew

8.1

Boarding

7.6

Overall

7.6

Food

6.8

Comfort

7.3

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

Crew

8.1

Boarding

7.6

Overall

7.6

Food

6.8

Comfort

7.3

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

Related info for your journey

Find useful and relevant information for your journey from London to Klagenfurt. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Klagenfurt from London?

    Klagenfurt (KLU), located 2.0 mi from the city center, is the airport you fly into when you book flights from London to Klagenfurt. 2 airlines have flights to Klagenfurt from London on a regular basis. Booking flights from London to Klagenfurt should not be difficult; the airport handles an average of 0 inbound flights from London per day.

  • What are the cheapest airlines flying from London to Klagenfurt round-trip?

    Flying on Ryanair is currently your cheapest option to Klagenfurt, with prices starting at £68. Additional return tickets that might be worth considering are offered by Austrian Airlines and Lufthansa, with the lowest prices starting at £177 and £216, respectively. You may be able to fly from London to Klagenfurt for 52% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from London to Klagenfurt one-way?

    The cheapet airlines for a one-way flight from London to Klagenfurt are Ryanair (£26), Eurowings (£113), and Austrian Airlines (£136).

  • What are the most popular routes from London to Klagenfurt?

  • Can I find deals for flights from London to Klagenfurt that include hotel bookings?

    Yes. In addition to deals on London to Klagenfurt flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Klagenfurt?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Klagenfurt.

  • Can I find deals for business class flights from London to Klagenfurt?

    Yes. Cheapflights offers flight deals from London to Klagenfurt by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top 2 airlines flying from London to Klagenfurt

Discover the top 2 airlines that operate flights from London to Klagenfurt. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 11 July 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£41Average£111FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Austrian AirlinesCheapest£154Average£251FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from London to Klagenfurt?

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Why should you use Cheapflights to find cheap flight tickets from London to Klagenfurt?

Cheapflights helps you find that perfect flight to Klagenfurt from London by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from London to Klagenfurt with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to Klagenfurt flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from London to Klagenfurt become cheaper?

Yes, Cheapflights offers price alerts on London to Klagenfurt flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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