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 is the cheapest day to fly from London to Klagenfurt?

Travellers seeking maximum savings on their London to Klagenfurt flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Klagenfurt ranges from 40.0 - 110.0 inches per month. June is typically the wettest month, when rainfall can reach 110.0 mm. January is typically the driest time to visit Klagenfurt when rainfall is around 40.0 mm.

If weather is an important factor for your trip to Klagenfurt, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -4.0 C).

What are the most popular routes from London to Klagenfurt?

While some choose either London Stansted - Klagenfurt or London Gatwick - Klagenfurt, London Heathrow - Klagenfurt is the most popular route from London to Klagenfurt.

What is the cheapest day to fly round-trip from London to Klagenfurt?

Flights from London to Klagenfurt are found to be more expensive on Monday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Klagenfurt.

What is the cheapest month to fly from London to Klagenfurt?

Flights from London to Klagenfurt lean towards being more expensive in December. Prices are generally better when you fly from London to Klagenfurt in January, with the cheapest ticket starting at £26.

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.

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.

£26+ Flights from London to Klagenfurt

Cheap flight deals from London to Klagenfurt

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
31/8-7/9
Nonstop
4h 10m total
London to Klagenfurt

Search Deals

Ryanair
9/10
Nonstop
2h 05m total
London to Klagenfurt

Search Deals

High demand for flights, 3% potential price rise

Search Deals

Cheapest flight prices on average. 5% potential price decrease (£6 potential savings vs. average return price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Price to beat on a round-trip flight from London (LON) to Klagenfurt.

Search Deals

Price to beat on a one-way flight from London (LON) to Klagenfurt.

Search Deals

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

Best flights from London to Klagenfurt
Discover carefully curated flight deals from London to Klagenfurt that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 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 4/1007:25LHR - KLU

2 stops5h 35mLufthansa

Tue 7/1015:00KLU - LHR

2 stops6h 45mLufthansa

Deal found 10/7£216

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

Tue 30/908:45LCY - KLU

2 stops13h 40mLufthansa

Sat 4/1015:00KLU - LCY

2 stops27h 15mLufthansa

Deal found 9/7£266

Mon 11/815:30LTN - KLU

1 stop15h 45mMultiple Airlines

Thu 14/814:55KLU - LTN

1 stop8h 55mMultiple Airlines

Deal found 9/7£224

Wed 16/707:15LCY - KLU

1 stop8h 05mMultiple Airlines

Thu 17/714:55KLU - LCY

1 stop6h 45mMultiple Airlines

Deal found 9/7£501

Last-minute flights from London to Klagenfurt
Discover last-minute flight deals from London to Klagenfurt. Data last updated 11 July 2025 and is based on user searches.

Wed 16/722:10STN - KLU

2 stops15h 20mRyanair

Thu 17/722:25KLU - STN

Nonstop2h 05mRyanair

Deal found 9/7£156

Wed 16/706:10STN - KLU

2 stops9h 10mMultiple Airlines

Thu 17/714:55KLU - STN

1 stop10h 00mMultiple Airlines

Deal found 9/7£227

Wed 16/706:00LTN - KLU

1 stop9h 20mMultiple Airlines

Thu 17/714:55KLU - LTN

1 stop11h 15mMultiple Airlines

Deal found 9/7£236

Wed 16/707:20LGW - KLU

2 stops8h 00mMultiple Airlines

Thu 17/714:55KLU - LGW

1 stop9h 30mMultiple Airlines

Deal found 9/7£254

Wed 16/707:15LCY - KLU

1 stop8h 05mMultiple Airlines

Thu 17/714:55KLU - LCY

1 stop6h 45mMultiple Airlines

Deal found 9/7£501

Thu 17/711:30LHR - KLU

2 stops10h 55mMultiple Airlines

Thu 24/705:45KLU - LHR

1 stop4h 00mMultiple Airlines

Deal found 10/7£322

Thu 17/706:00LHR - KLU

1 stop16h 25mAustrian Airlines

Thu 24/705:45KLU - LHR

1 stop4h 00mAustrian Airlines

Deal found 10/7£322

Thu 17/711:30LHR - KLU

2 stops10h 55mLufthansa

Thu 24/705:45KLU - LHR

2 stops10h 55mLufthansa

Deal found 10/7£342

Thu 17/708:45LCY - KLU

2 stops13h 40mLufthansa

Thu 24/705:45KLU - LCY

2 stops11h 40mLufthansa

Deal found 10/7£373

Thu 7/820:25LHR - KLU

2 stops16h 35mLufthansa

Thu 14/815:00KLU - LHR

2 stops17h 40mLufthansa

Deal found 10/7£234

Thu 7/808:45LCY - KLU

2 stops13h 40mLufthansa

Thu 14/805:45KLU - LCY

2 stops11h 40mLufthansa

Deal found 9/7£266

Fri 8/809:05LHR - KLU

1 stop3h 55mAustrian Airlines

Fri 15/815:00KLU - LHR

1 stop18h 20mAustrian Airlines

Deal found 9/7£221

One-way flights from London to Klagenfurt
Search for one-way flight options from London to Klagenfurt. Find affordable one-way fares based on user searches. Data last updated 11 July 2025.

Thu 9/1018:55STN - KLU

Nonstop2h 05mRyanair

Deal found 10/7£26

Mon 11/815:30LTN - KLU

1 stop15h 45mRyanair

Deal found 9/7£82

Sat 27/920:30LTN - KLU

1 stop21h 10mMultiple Airlines

Deal found 9/7£89

Sun 7/908:20STN - KLU

1 stop9h 20mMultiple Airlines

Deal found 9/7£94

Mon 11/821:35LGW - KLU

1 stop9h 40mMultiple Airlines

Deal found 9/7£96

Fri 29/808:50LHR - KLU

1 stop6h 25mEurowings

Deal found 10/7£113

Fri 26/920:40SEN - KLU

1 stop11h 45mMultiple Airlines

Deal found 9/7£121

Sun 12/1019:20LHR - KLU

1 stop27h 05mMultiple Airlines

Deal found 9/7£132

Mon 13/1006:00LHR - KLU

1 stop16h 25mAustrian Airlines

Deal found 9/7£136

Fri 15/812:20LGW - KLU

1 stop8h 50mRyanair

Deal found 9/7£137

Thu 28/806:55LHR - KLU

2 stops6h 05mLufthansa

Deal found 10/7£147

Mon 11/815:00LCY - KLU

1 stop16h 15mMultiple Airlines

Deal found 9/7£160

Cheapflights Fare Finder

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

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

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?

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?

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

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.

Austrian Airlines

7.6

Good

811 reviews

Check prices

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

Austrian Airlines

7.6

Good

811 reviews

Austrian Airlines

7.6

Good

811 reviews

Check prices

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

Ryanair

6.8

Okay

5,152 reviews

Austrian Airlines

7.6

Good

811 reviews

Check prices

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

Lufthansa

6.8

Okay

7,199 reviews

Austrian Airlines

7.6

Good

811 reviews

Check prices

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

Eurowings

6.7

Okay

281 reviews

Austrian Airlines

7.6

Good

811 reviews

Check prices

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

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?
While some choose either London Stansted - Klagenfurt or London Gatwick - Klagenfurt, London Heathrow - Klagenfurt is the most popular route 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for London to Klagenfurt

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Top 2 airlines flying from London to Klagenfurt

Airline	Cheapest	Average	Flexibility	On-time
Ryanair	Cheapest£41	Average£111	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
Austrian Airlines	Cheapest£154	Average£251	FlexibilityNo cancel fee	On-time78%	Search Austrian Airlines flights

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

Cheapflights helps you search for flights from London to Klagenfurt via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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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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.

Cheap flight deals from London to Klagenfurt

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from London to Klagenfurt

Cheapest flights from London to KlagenfurtExplore 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.

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.

Cheapflights Fare Finder

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

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.

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.

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.

Reviews of airlines servicing Klagenfurt

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.

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?

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

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

What are the most popular routes from London to Klagenfurt?

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

How can I find direct flights from London to Klagenfurt?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for London to Klagenfurt

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from London to Klagenfurt

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

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

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

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

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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.