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Cheap flights from Klagenfurt to London from £14

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 15/11. Fares are subject to change and may not be available on all flights or dates of travel.
KLU — LON
8 Dec — 15 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Klagenfurt to London

Enter your travel dates to find the best prices.

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 8 November 2025.

Sat 13/1209:30KLU - STN
Nonstop2h 10mRyanair
Mon 15/1206:10STN - KLU
Nonstop2h 10mRyanair
Deal found 5/11£40
Mon 8/1210:00KLU - STN
Nonstop2h 10mRyanair
Sat 13/1205:55STN - KLU
Nonstop2h 10mRyanair
Deal found 5/11£43
Sat 29/1109:30KLU - STN
Nonstop2h 10mRyanair
Sat 6/1205:55STN - KLU
Nonstop2h 10mRyanair
Deal found 6/11£44
Mon 17/1110:00KLU - STN
Nonstop2h 10mRyanair
Sat 22/1105:55STN - KLU
Nonstop2h 10mRyanair
Deal found 5/11£45
Sat 22/1109:30KLU - STN
Nonstop2h 10mRyanair
Mon 24/1106:10STN - KLU
Nonstop2h 10mRyanair
Deal found 5/11£46
Sat 29/1109:30KLU - STN
Nonstop2h 10mRyanair
Mon 1/1206:10STN - KLU
Nonstop2h 10mRyanair
Deal found 5/11£48
Mon 10/1110:00KLU - STN
Nonstop2h 10mRyanair
Sat 15/1105:55STN - KLU
Nonstop2h 10mRyanair
Deal found 6/11£56
Sat 15/1109:30KLU - STN
Nonstop2h 10mRyanair
Mon 17/1106:10STN - KLU
Nonstop2h 10mRyanair
Deal found 7/11£57
Thu 27/1114:50KLU - LHR
1 stop7h 50mAustrian Airlines
Mon 1/1206:00LHR - KLU
1 stop16h 25mAustrian Airlines
Deal found 5/11£174
Sat 29/1114:50KLU - LHR
1 stop7h 50mAustrian Airlines
Mon 1/1206:00LHR - KLU
1 stop6h 55mAustrian Airlines
Deal found 5/11£174
Sat 29/1114:50KLU - LHR
1 stop4h 50mAustrian Airlines
Sun 30/1106:00LHR - KLU
1 stop6h 55mAustrian Airlines
Deal found 6/11£190
Fri 28/1114:50KLU - LHR
1 stop7h 50mAustrian Airlines
Sun 30/1106:00LHR - KLU
1 stop6h 55mAustrian Airlines
Deal found 7/11£194

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 8 November 2025.

Round-trip from

£44

One-way from

£14

Popular in

August

Cheapest in

January

Average price

£49
Ryanair
  • Ryanair
  • 29/11-6/12
  • Nonstop
  • 4h 20m total
  • Klagenfurt to London
Search Deals
Ryanair
  • Ryanair
  • 15/11
  • Nonstop
  • 2h 10m total
  • Klagenfurt to London
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£22 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 8 November 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

Sat 13/12

09:30-10:40

Nonstop2h 10m

London Stansted

Mon 15/12

06:10-09:20

Nonstop2h 10m

£40

KlagenfurtLondon

KLU - STN

KLUSTN

Klagenfurt

Sat 22/11

09:30-10:40

Nonstop2h 10m

London Stansted

Mon 24/11

06:10-09:20

Nonstop2h 10m

£44

KlagenfurtLondon

KLU - STN

KLUSTN

Klagenfurt

Sat 29/11

09:30-10:40

Nonstop2h 10m

London Stansted

Sat 6/12

05:55-09:05

Nonstop2h 10m

£44

KlagenfurtLondon

KLU - STN

KLUSTN

Klagenfurt

Mon 17/11

10:00-11:10

Nonstop2h 10m

London Stansted

Sat 22/11

05:55-09:05

Nonstop2h 10m

£45

KlagenfurtLondon

KLU - STN

KLUSTN

Klagenfurt

Sat 29/11

09:30-10:40

Nonstop2h 10m

London Stansted

Mon 1/12

06:10-09:20

Nonstop2h 10m

£50

KlagenfurtLondon

KLU - STN

KLUSTN

Klagenfurt

Mon 16/3

10:00-11:10

Nonstop2h 10m

London Stansted

Sat 21/3

05:55-09:05

Nonstop2h 10m

£70

KlagenfurtLondon

KLU - STN

KLUSTN

Klagenfurt

Sat 6/12

09:30-10:40

Nonstop2h 10m

London Stansted

Mon 8/12

06:10-09:20

Nonstop2h 10m

£145

KlagenfurtLondon

KLU - STN

KLUSTN

Klagenfurt

Sat 4/4

11:50-12:55

Nonstop2h 05m

London Stansted

Tue 7/4

07:45-14:40

1 stop5h 55m

£151

KlagenfurtLondon

KLU - STN

KLUSTN

Klagenfurt

Wed 6/5

17:55-07:20

1 stop14h 25m

London Stansted

Sat 9/5

08:10-11:15

Nonstop2h 05m

£161

KlagenfurtLondon

KLU - LHR

KLULHR

Klagenfurt

Fri 16/1

15:15-18:40

1 stop4h 25m

London Heathrow

Sun 18/1

06:00-13:50

1 stop6h 50m

£174

Flights are sorted by cheapest return flights first.

Deals found on 6/11

Showing 1-10 of 60 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 7 November 2025.

The best time to book flights from Klagenfurt to London is 23 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 £27). Flying from Klagenfurt to London in August is currently the most expensive (average of £69). 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 8 November 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.

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

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.

  • How long is the flight from Klagenfurt to London?

    There are many flights that can get you from Klagenfurt to London in 2h 10m. Fly via Ryanair or Austrian Airlines to get the fastest option. Airlines will cover a distance of 729 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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 Luton 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 £27). Flying from Klagenfurt to London in August is currently the most expensive (average of £69). 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 London?

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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.
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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?

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.

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

Not ready to book yet? You can track prices for flights from Klagenfurt to London on Cheapflights with our Price Alert feature and get notified when better prices are available.

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