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

According to our current data, Ryanair (£51), Austrian Airlines (£175), and Lufthansa (£221) offers the cheapest pricing from Klagenfurt to London. Ryanair is currently priced 57% below the average price you’ll pay for this route.

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

The cheapest airline one-way is Ryanair, with whom users have recently found tickets for as low as £77. However, be on the lookout for offers from Austrian Airlines and Eurowings, as they are both options that can get you from Klagenfurt to London for a low price.

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London, 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 17.0 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 Klagenfurt to London?

When deciding which route to take from Klagenfurt to London consider Klagenfurt - London Heathrow, Klagenfurt - London Gatwick or Klagenfurt - London Luton as they are the most popular.

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

Travelers have found it’s best to book a flight 51 days in advance to save up to 72% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 51 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Klagenfurt to London 1-2 weeks in advance for as low as £49, or £83 for flights within the next 24 hours.

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

The best pricing can be found in the month of January. Prices to London from Klagenfurt average £120. You can even find prices in January for less than £120, as users have found deals to London from as low as £30. The month of August appears to be one of the more expensive times to travel to London from Klagenfurt. Flying in the targeted month can save you up to 37%.

What airport do you fly from for flights from Klagenfurt to London?

If you book a flight to London from Klagenfurt, you will be flying from Klagenfurt, which is the city’s only airport. Klagenfurt (KLU) is located 2.0 mi from the center of Klagenfurt. There are 0 flights from Klagenfurt to London per day from 0 different airlines.

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

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

How can I find direct flights from Klagenfurt to London?

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

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

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

£51+ Flights from Klagenfurt to London

Cheap flight deals from Klagenfurt to London

Round-trip from	£51
Popular in	August
Cheapest in	January
Average price	£152
Good one-way deal	£24 or less

Ryanair
2/10-5/10
Nonstop
4h 10m total
Klagenfurt to London

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (£13 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£4 potential savings vs. average return price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

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

Search Deals

Find flight deals from Klagenfurt to London

Cheapest flights from Klagenfurt to London
Explore the most affordable flight options available from Klagenfurt to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 July 2025.

Mon 10/1110:00KLU - STN

Nonstop2h 10mRyanair

Sat 22/1105:55STN - KLU

Nonstop2h 10mRyanair

Deal found 13/7£63

Thu 2/1014:55KLU - STN

2 stops17h 20mMultiple Airlines

Thu 9/1018:55STN - KLU

Nonstop2h 05mMultiple Airlines

Deal found 14/7£117

Thu 2/1014:55KLU - LTN

1 stop9h 20mMultiple Airlines

Sun 5/1011:40LTN - KLU

1 stop7h 10mMultiple Airlines

Deal found 13/7£141

Thu 25/914:55KLU - LGW

1 stop9h 30mMultiple Airlines

Sun 28/905:40LGW - KLU

1 stop12h 00mMultiple Airlines

Deal found 14/7£150

Thu 2/1014:55KLU - SEN

1 stop6h 10mMultiple Airlines

Thu 9/1020:35SEN - KLU

2 stops24h 35mMultiple Airlines

Deal found 14/7£157

Fri 26/905:45KLU - LHR

1 stop4h 00mAustrian Airlines

Thu 2/1006:00LHR - KLU

1 stop7h 00mAustrian Airlines

Deal found 15/7£175

Tue 11/1114:50KLU - LHR

2 stops9h 05mMultiple Airlines

Sat 22/1106:00LHR - KLU

1 stop6h 55mMultiple Airlines

Deal found 13/7£198

Sat 18/1005:45KLU - LHR

2 stops12h 20mLufthansa

Mon 20/1007:25LHR - KLU

2 stops15h 00mLufthansa

Deal found 15/7£221

Thu 27/1105:45KLU - LCY

2 stops11h 45mLufthansa

Mon 1/1209:50LCY - KLU

2 stops27h 05mLufthansa

Deal found 14/7£282

Thu 24/714:55KLU - LCY

1 stop6h 45mMultiple Airlines

Fri 25/719:00LCY - KLU

1 stop13h 25mMultiple Airlines

Deal found 13/7£498

Best flights from Klagenfurt to London
Discover carefully curated flight deals from Klagenfurt to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 July 2025.

Thu 2/1022:25KLU - STN

Nonstop2h 05mRyanair

Sun 5/1016:50STN - KLU

Nonstop2h 05mRyanair

Deal found 13/7£51

Thu 2/1014:55KLU - STN

2 stops17h 20mMultiple Airlines

Thu 9/1018:55STN - KLU

Nonstop2h 05mMultiple Airlines

Deal found 14/7£117

Fri 26/905:45KLU - LHR

1 stop4h 00mAustrian Airlines

Thu 2/1006:00LHR - KLU

1 stop7h 00mAustrian Airlines

Deal found 15/7£175

Sat 18/1005:45KLU - LHR

2 stops12h 20mLufthansa

Mon 20/1007:25LHR - KLU

2 stops15h 00mLufthansa

Deal found 15/7£221

Thu 2/1014:55KLU - LTN

1 stop9h 20mMultiple Airlines

Sun 5/1011:40LTN - KLU

1 stop7h 10mMultiple Airlines

Deal found 13/7£141

Thu 25/914:55KLU - LGW

1 stop9h 30mMultiple Airlines

Sun 28/905:40LGW - KLU

1 stop12h 00mMultiple Airlines

Deal found 14/7£150

Thu 2/1014:55KLU - SEN

1 stop6h 10mMultiple Airlines

Thu 9/1020:35SEN - KLU

2 stops24h 35mMultiple Airlines

Deal found 14/7£157

Tue 11/1114:50KLU - LHR

2 stops9h 05mMultiple Airlines

Sat 22/1106:00LHR - KLU

1 stop6h 55mMultiple Airlines

Deal found 13/7£198

Thu 27/1105:45KLU - LCY

2 stops11h 45mLufthansa

Mon 1/1209:50LCY - KLU

2 stops27h 05mLufthansa

Deal found 14/7£282

Mon 27/1005:45KLU - LCY

2 stops13h 55mMultiple Airlines

Fri 31/1013:30LCY - KLU

2 stops8h 55mMultiple Airlines

Deal found 13/7£619

Last-minute flights from Klagenfurt to London
Discover last-minute flight deals from Klagenfurt to London. Data last updated 15 July 2025 and is based on user searches.

Thu 17/722:25KLU - STN

Nonstop2h 05mMultiple Airlines

Wed 23/706:10STN - KLU

2 stops9h 10mMultiple Airlines

Deal found 13/7£164

Thu 17/714:55KLU - LGW

1 stop9h 30mMultiple Airlines

Mon 21/721:35LGW - KLU

1 stop9h 40mMultiple Airlines

Deal found 13/7£215

Sun 20/721:10KLU - LGW

1 stop12h 25mMultiple Airlines

Mon 21/721:35LGW - KLU

1 stop9h 40mMultiple Airlines

Deal found 13/7£229

Mon 21/715:00KLU - LHR

1 stop7h 40mAustrian Airlines

Wed 13/806:00LHR - KLU

1 stop7h 00mAustrian Airlines

Deal found 14/7£212

Mon 21/715:00KLU - LHR

1 stop7h 40mMultiple Airlines

Wed 13/807:25LHR - KLU

2 stops5h 35mMultiple Airlines

Deal found 14/7£235

Thu 24/722:25KLU - STN

Nonstop2h 05mRyanair

Thu 31/718:55STN - KLU

Nonstop2h 05mRyanair

Deal found 13/7£131

Thu 24/714:55KLU - LCY

1 stop6h 45mMultiple Airlines

Fri 25/719:00LCY - KLU

1 stop13h 25mMultiple Airlines

Deal found 13/7£498

Fri 25/722:35KLU - STN

1 stop15h 05mMultiple Airlines

Wed 30/706:10STN - KLU

2 stops9h 10mMultiple Airlines

Deal found 14/7£180

Fri 25/722:35KLU - LTN

1 stop14h 25mMultiple Airlines

Wed 30/718:25LTN - KLU

2 stops19h 05mMultiple Airlines

Deal found 14/7£213

Fri 25/705:45KLU - LHR

2 stops16h 00mLufthansa

Thu 31/709:00LHR - KLU

2 stops13h 25mLufthansa

Deal found 13/7£261

Thu 7/822:25KLU - STN

Nonstop2h 05mRyanair

Sun 24/816:50STN - KLU

Nonstop2h 05mRyanair

Deal found 14/7£59

Wed 13/805:45KLU - LHR

1 stop4h 15mAustrian Airlines

Wed 20/809:05LHR - KLU

1 stop13h 20mAustrian Airlines

Deal found 14/7£192

One-way flights from Klagenfurt to London
Search for one-way flight options from Klagenfurt to London. Find affordable one-way fares based on user searches. Data last updated 15 July 2025.

Wed 1/1016:55KLU - LTN

1 stop16h 50mMultiple Airlines

Deal found 14/7£69

Wed 1/1016:55KLU - LGW

1 stop16h 40mMultiple Airlines

Deal found 14/7£72

Wed 1/1016:55KLU - STN

1 stop17h 00mRyanair

Deal found 14/7£77

Wed 1/1016:55KLU - SEN

1 stop21h 00mMultiple Airlines

Deal found 14/7£82

Wed 1/1016:55KLU - STN

2 stops21h 55mMultiple Airlines

Deal found 14/7£95

Wed 1/1016:55KLU - LHR

2 stops17h 15mMultiple Airlines

Deal found 14/7£109

Wed 1/1005:45KLU - LHR

1 stop4h 15mAustrian Airlines

Deal found 14/7£136

Sun 10/821:10KLU - LTN

2 stops19h 25mRyanair

Deal found 13/7£157

Mon 21/714:30KLU - LHR

1 stop18h 40mEurowings

Deal found 14/7£163

Thu 25/905:45KLU - LHR

2 stops12h 55mLufthansa

Deal found 14/7£169

Wed 1/1005:45KLU - LCY

2 stops13h 50mLufthansa

Deal found 14/7£182

Thu 21/814:55KLU - LCY

2 stops17h 20mMultiple Airlines

Deal found 14/7£204

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

KlagenfurtLondon

KLU - STN

KLUSTN

Klagenfurt

Thu 7/8

22:25-23:30

Nonstop2h 05m

London Stansted

Sun 24/8

16:50-19:55

Nonstop2h 05m

£59

KlagenfurtLondon

KLU - STN

KLUSTN

Klagenfurt

Thu 2/10

14:55-07:15

2 stops17h 20m

London Stansted

Thu 9/10

18:55-22:00

Nonstop2h 05m

£117

KlagenfurtLondon

KLU - LTN

KLULTN

Klagenfurt

Thu 2/10

14:55-23:15

1 stop9h 20m

London Luton

Sun 5/10

11:40-19:50

1 stop7h 10m

£141

KlagenfurtLondon

KLU - LGW

KLULGW

Klagenfurt

Thu 25/9

14:55-23:25

1 stop9h 30m

London Gatwick

Sun 28/9

05:40-18:40

1 stop12h 00m

£150

KlagenfurtLondon

KLU - SEN

KLUSEN

Klagenfurt

Thu 2/10

14:55-20:05

1 stop6h 10m

London Southend

Thu 9/10

20:35-22:10

2 stops24h 35m

£157

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Fri 26/9

05:45-08:45

1 stop4h 00m

London Heathrow

Thu 2/10

06:00-14:00

1 stop7h 00m

£175

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Tue 11/11

14:50-22:55

2 stops9h 05m

London Heathrow

Sat 22/11

06:00-13:55

1 stop6h 55m

£198

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Sat 18/10

05:45-17:05

2 stops12h 20m

London Heathrow

Mon 20/10

07:25-23:25

2 stops15h 00m

£221

KlagenfurtLondon

KLU - LCY

KLULCY

Klagenfurt

Thu 27/11

05:45-16:30

2 stops11h 45m

London City

Mon 1/12

09:50-13:55

2 stops27h 05m

£282

KlagenfurtLondon

KLU - LCY

KLULCY

Klagenfurt

Mon 27/10

05:45-18:40

2 stops13h 55m

London City

Fri 31/10

13:30-23:25

2 stops8h 55m

£619

Flights are sorted by cheapest return flights first.

Deals found on 14/7

Showing 1-10 of 23 results

Best time to book a flight from Klagenfurt to London

Have a flexible travel schedule? Discover the best time to fly to London from Klagenfurt 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 Klagenfurt to London

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

The best time to book flights from Klagenfurt to London is 50 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Klagenfurt to London?

Currently, January is the cheapest month in which you can book a flight from Klagenfurt to London (average of £112). Flying from Klagenfurt to London in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

When flying from Klagenfurt to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Klagenfurt to London?

Reviews of airlines servicing London

See what other customers who have flown with Austrian Airlines, Ryanair, andLufthansa from Klagenfurt to London have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Austrian Airlines

7.6

Good

814 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

814 reviews

Austrian Airlines

7.6

Good

814 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

6.9

Okay

5,149 reviews

Austrian Airlines

7.6

Good

814 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

7,208 reviews

Austrian Airlines

7.6

Good

814 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

280 reviews

Austrian Airlines

7.6

Good

814 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 from for flights from Klagenfurt to London?
If you book a flight to London from Klagenfurt, you will be flying from Klagenfurt, which is the city’s only airport. Klagenfurt (KLU) is located 2.0 mi from the center of Klagenfurt. There are 0 flights from Klagenfurt to London per day from 0 different airlines.
What are the cheapest airlines flying from Klagenfurt to London round-trip?
According to our current data, Ryanair (£51), Austrian Airlines (£175), and Lufthansa (£221) offers the cheapest pricing from Klagenfurt to London. Ryanair is currently priced 57% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from Klagenfurt to London one-way?
The cheapest airline one-way is Ryanair, with whom users have recently found tickets for as low as £77. However, be on the lookout for offers from Austrian Airlines and Eurowings, as they are both options that can get you from Klagenfurt to London for a low price.
What are the most popular routes from Klagenfurt to London?
When deciding which route to take from Klagenfurt to London consider Klagenfurt - London Heathrow, Klagenfurt - London Gatwick or Klagenfurt - London Luton as they are the most popular.
Can I find deals for flights from Klagenfurt to London that include hotel bookings?
Yes. In addition to deals on Klagenfurt to London flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Klagenfurt to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Klagenfurt to London.
Can I find deals for business class flights from Klagenfurt to London?
Yes. Cheapflights offers flight deals from Klagenfurt to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Klagenfurt to London?
Currently, January is the cheapest month in which you can book a flight from Klagenfurt to London (average of £112). Flying from Klagenfurt to London in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Deals for Klagenfurt to London flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Klagenfurt to London.

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

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

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Cheap flights from Klagenfurt to London from £51

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Klagenfurt to London

Round-trip from

Popular in

Cheapest in

Average price

Good one-way deal

Find flight deals from Klagenfurt to London

Cheapest flights from Klagenfurt to LondonExplore the most affordable flight options available from Klagenfurt to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 July 2025.

Explore the most affordable flight options available from Klagenfurt to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 July 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Klagenfurt to London

Have a flexible travel schedule? Discover the best time to fly to London from Klagenfurt with our price prediction graph.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a return flight from Klagenfurt to London. Price data was last updated on 11 July 2025.

What is the cheapest month to book a flight from Klagenfurt to London?

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

Find hourly flight availability from Klagenfurt to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 July 2025.

How much does it cost for a return flight from Klagenfurt to London?

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 15 July 2025.

See what other customers who have flown with Austrian Airlines, Ryanair, andLufthansa from Klagenfurt to London have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Klagenfurt to London. 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 from for flights from Klagenfurt to London?

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

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

What are the most popular routes from Klagenfurt to London?

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

How can I find direct flights from Klagenfurt to London?

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

What is the cheapest month to book a flight from Klagenfurt to London?

Travelling to a place near London?

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Alternative routes for Klagenfurt to London

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

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

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

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

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Cheapest flights from Klagenfurt to London
Explore the most affordable flight options available from Klagenfurt to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 July 2025.