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Cheap flights from Klagenfurt to London from £44

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 26/6. Fares are subject to change and may not be available on all flights or dates of travel.
KLU — LON
30 Mar — 6 Apr1
1 adult

Cheap flight deals from Klagenfurt to London

Discover tips and strategies to find the most affordable flight options for your journey from Klagenfurt (KLU) to London (LON). 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 25 March 2025.

Round-trip from

£50

One-way from

£44

Popular in

May

Cheapest in

March

Average price

£60
Ryanair
  • Ryanair
  • 15/5-18/5
  • Nonstop
  • 4h 10m total
  • Klagenfurt to London
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Ryanair
  • Ryanair
  • 26/6
  • Nonstop
  • 2h 05m total
  • Klagenfurt to London
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£18 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£4 potential savings vs. average return price).
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Average for round-trip flights in March 2025
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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 25 March 2025.

Thu 24/422:25KLU - STN
Nonstop2h 05mRyanair
Sun 27/416:50STN - KLU
Nonstop2h 05mRyanair
Deal found 24/3£67
Thu 24/422:25KLU - STN
Nonstop2h 05mMultiple Airlines
Sun 27/408:20STN - KLU
1 stop9h 20mMultiple Airlines
Deal found 24/3£108
Tue 1/408:45KLU - LTN
1 stop10h 20mMultiple Airlines
Thu 24/417:30LTN - KLU
1 stop27h 40mMultiple Airlines
Deal found 25/3£141
Tue 1/408:45KLU - LGW
2 stops29h 00mMultiple Airlines
Thu 24/420:10LGW - KLU
1 stop25h 00mMultiple Airlines
Deal found 25/3£142
Tue 1/408:45KLU - LTN
2 stops39h 50mRyanair
Thu 24/417:30LTN - KLU
1 stop27h 40mRyanair
Deal found 25/3£149
Tue 16/915:00KLU - LHR
1 stop18h 20mAustrian Airlines
Sun 21/906:00LHR - KLU
1 stop16h 25mAustrian Airlines
Deal found 24/3£166
Tue 1/408:45KLU - SEN
1 stop12h 05mMultiple Airlines
Thu 24/407:15SEN - KLU
1 stop6h 15mMultiple Airlines
Deal found 25/3£172
Wed 7/515:00KLU - LHR
2 stops6h 45mMultiple Airlines
Sun 11/506:00LHR - KLU
1 stop16h 25mMultiple Airlines
Deal found 24/3£193
Thu 12/615:00KLU - LHR
2 stops8h 10mLufthansa
Sun 15/608:30LHR - KLU
2 stops28h 30mLufthansa
Deal found 25/3£220
Wed 6/805:45KLU - LCY
2 stops11h 40mMultiple Airlines
Tue 12/808:45LCY - KLU
2 stops13h 40mMultiple Airlines
Deal found 25/3£280
Thu 8/515:00KLU - LCY
2 stops18h 20mLufthansa
Thu 15/508:45LCY - KLU
2 stops13h 40mLufthansa
Deal found 25/3£367

Cheapflights Fare Finder

Customise your flight search to find flights from Klagenfurt to London 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 25 March 2025.
Use the filters below to find and compare flights from Klagenfurt to London that are best for you.

Fly from

Klagenfurt

Fly to

London

Route

Depart

Return

Price

KlagenfurtLondon

KLU - STN

KLUSTN

Klagenfurt

Thu 8/5

22:25-23:30

Nonstop2h 05m

London Stansted

Sun 11/5

16:50-19:55

Nonstop2h 05m

£61

KlagenfurtLondon

KLU - STN

KLUSTN

Klagenfurt

Thu 24/4

22:25-23:30

Nonstop2h 05m

London Stansted

Sun 27/4

08:20-18:40

1 stop9h 20m

£108

KlagenfurtLondon

KLU - LGW

KLULGW

Klagenfurt

Thu 8/5

14:55-23:15

2 stops33h 20m

London Gatwick

Thu 15/5

20:10-22:10

1 stop25h 00m

£148

KlagenfurtLondon

KLU - LTN

KLULTN

Klagenfurt

Fri 16/5

22:35-18:10

1 stop20h 35m

London Luton

Sun 18/5

08:15-18:40

1 stop9h 25m

£160

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Tue 16/9

15:00-08:20

1 stop18h 20m

London Heathrow

Sun 21/9

06:00-23:25

1 stop16h 25m

£166

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Wed 7/5

15:00-20:45

2 stops6h 45m

London Heathrow

Sun 11/5

06:00-23:25

1 stop16h 25m

£193

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Thu 12/6

15:00-22:10

2 stops8h 10m

London Heathrow

Sun 15/6

08:30-14:00

2 stops28h 30m

£220

KlagenfurtLondon

KLU - LTN

KLULTN

Klagenfurt

Fri 18/4

22:35-19:05

2 stops21h 30m

London Luton

Mon 21/4

15:30-08:15

1 stop15h 45m

£244

KlagenfurtLondon

KLU - SEN

KLUSEN

Klagenfurt

Thu 10/4

14:55-13:05

1 stop23h 10m

London Southend

Thu 17/4

17:20-22:10

1 stop27h 50m

£257

KlagenfurtLondon

KLU - LCY

KLULCY

Klagenfurt

Wed 6/8

05:45-16:25

2 stops11h 40m

London City

Tue 12/8

08:45-23:25

2 stops13h 40m

£280

Flights are sorted by cheapest return flights first.

Deals found on 25/3

Showing 1-10 of 23 results
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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?

Use this chart to determine the optimal time to book a return flight from Klagenfurt to London. Price data was last updated on 21 March 2025.

The best time to book flights from Klagenfurt to London is 10 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?

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 25 March 2025.

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.

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

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.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

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).

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 25 March 2025.
Read through reviews of airlines operating flights from Klagenfurt to London, such as Austrian Airlines, Ryanair and Lufthansa. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.5
Good
769 reviews
Check prices

Entertainment

6.7

Overall

7.5

Comfort

7.3

Boarding

7.6

Food

6.8

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
Austrian Airlines
7.5
Good
769 reviews
Austrian Airlines
7.5
Good
769 reviews
Check prices

Entertainment

6.7

Overall

7.5

Comfort

7.3

Boarding

7.6

Food

6.8

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
Ryanair
6.8
Okay
5,004 reviews
Austrian Airlines
7.5
Good
769 reviews
Check prices

Entertainment

6.7

Overall

7.5

Comfort

7.3

Boarding

7.6

Food

6.8

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
Lufthansa
6.7
Okay
6,950 reviews
Austrian Airlines
7.5
Good
769 reviews
Check prices

Entertainment

6.7

Overall

7.5

Comfort

7.3

Boarding

7.6

Food

6.8

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
Eurowings
6.6
Okay
274 reviews
Austrian Airlines
7.5
Good
769 reviews
Check prices

Entertainment

6.7

Overall

7.5

Comfort

7.3

Boarding

7.6

Food

6.8

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.

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?

    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 (£50), Austrian Airlines (£166), and Lufthansa (£226) offers the cheapest pricing from Klagenfurt to London. Ryanair is currently priced 62% 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 £44. However, be on the lookout for offers from Eurowings and Austrian Airlines, 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 City or Klagenfurt - London Gatwick 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

Travelling to a place near Klagenfurt?

Book flights to Klagenfurt if you plan to visit one of these locations
Hounslow
Deal
Milton Keynes
Gatwick
Croydon
Luton
Slough
Eastbourne
Wembley
Hayes
Ilford
Crawley
Southend-on-Sea
Winchester
Maidstone
Ipswich
Watford
Southall
Dartford
Folkestone

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Alternative routes for Klagenfurt to London

See prices for flight routes from nearby airports that may be better suited for you.
Vienna to Heathrow flights
Vienna to Gatwick flights
Vienna to London City flights
Vienna to Stansted flights
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Salzburg to Stansted flights
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Salzburg to Gatwick flights
Innsbruck to Gatwick flights
Innsbruck to London City flights
Innsbruck to Luton flights
Klagenfurt to Heathrow flights
Linz to Stansted flights
Innsbruck to Heathrow flights
Klagenfurt to Gatwick flights
Klagenfurt to Stansted flights
Graz to Gatwick flights
Graz to Stansted flights
Graz to Heathrow flights
Klagenfurt to Luton flights
Vienna to Bristol flights
Linz to Gatwick flights
Vienna to Birmingham flights
Linz to Luton flights
Vienna to Liverpool flights
Graz to Luton flights
Graz to Edinburgh flights
Salzburg to Edinburgh flights
Salzburg to Southend flights
Vienna to Leeds flights
Vienna to Southampton flights
Innsbruck to Edinburgh flights
Salzburg to Manchester flights
Vienna to Newquay flights
Innsbruck to Manchester flights
Linz to Edinburgh flights
Vienna to Newcastle upon Tyne flights
Graz to Manchester flights
Klagenfurt to Edinburgh flights
Innsbruck to Birmingham flights

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