Find flights
Deals
When to book
FAQs

Cheap flights from Klagenfurt to London from £15

KLU — LON
17 Sep — 24 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Klagenfurt to London

Enter your travel dates to find the best prices.

Cheapest flights from Klagenfurt to London

Mon 12/1010:30 -
Nonstop2h 05m
Sat 17/1007:30 -
Nonstop2h 05m
Deal found 14/8£56
Wed 9/916:05 -
Nonstop2h 05m
Mon 14/906:45 -
Nonstop2h 05m
Deal found 16/8£58
Mon 21/910:30 -
Nonstop2h 05m
Mon 28/906:45 -
Nonstop2h 05m
Deal found 13/8£60
Sat 12/911:55 -
Nonstop2h 05m
Mon 21/906:45 -
Nonstop2h 05m
Deal found 17/8£63
Mon 19/1010:30 -
Nonstop2h 05m
Sat 24/1007:30 -
Nonstop2h 05m
Deal found 18/8£65
Mon 28/910:30 -
Nonstop2h 05m
Wed 30/912:25 -
Nonstop2h 05m
Deal found 16/8£69
Mon 5/1015:45 -
1 stop16h 35m
Sat 10/1007:30 -
Nonstop2h 05m
Deal found 15/8£69
Wed 14/1017:55 -
1 stop14h 25m
Sat 17/1007:30 -
Nonstop2h 05m
Deal found 15/8£70
Tue 29/915:15 -
1 stop10h 15m
Tue 6/1017:45 -
2 stops22h 35m
Deal found 15/8£138
Tue 8/915:15 -
1 stop10h 15m
Mon 14/911:40 -
1 stop26h 00m
Deal found 16/8£139
Tue 29/915:15 -
2 stops21h 10m
Tue 6/1007:00 -
1 stop6h 40m
Deal found 15/8£140
Mon 28/915:45 -
2 stops17h 45m
Mon 5/1015:15 -
2 stops22h 25m
Deal found 14/8£150

Find flight deals from Klagenfurt to London

Round-trip from

£56

One-way from

£15

Popular in

March

Cheapest in

January

Average price

£138
Ryanair
  • Ryanair
  • 12/10-17/10
  • Nonstop
  • 4h 10m total
  • Klagenfurt to London
Search Deals
Ryanair
  • Ryanair
  • 17/10
  • Nonstop
  • 2h 05m total
  • Klagenfurt to London
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£7 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

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

Cheapest return flight
Fastest return journey

KlagenfurtLondon

KLU Klagenfurt - STN London Stansted

KLUSTN

Klagenfurt

Mon 12/10

10:30-11:35

Nonstop2h 05m

London Stansted

Sat 17/10

07:30-10:35

Nonstop2h 05m

£60

KlagenfurtLondon

KLU Klagenfurt - STN London Stansted

KLUSTN

Klagenfurt

Mon 21/9

10:30-11:35

Nonstop2h 05m

London Stansted

Mon 28/9

06:45-09:50

Nonstop2h 05m

£60

KlagenfurtLondon

KLU Klagenfurt - STN London Stansted

KLUSTN

Klagenfurt

Mon 19/10

10:30-11:35

Nonstop2h 05m

London Stansted

Sat 24/10

07:30-10:35

Nonstop2h 05m

£65

KlagenfurtLondon

KLU Klagenfurt - STN London Stansted

KLUSTN

Klagenfurt

Mon 28/9

10:30-11:35

Nonstop2h 05m

London Stansted

Wed 30/9

12:25-15:30

Nonstop2h 05m

£69

KlagenfurtLondon

KLU Klagenfurt - STN London Stansted

KLUSTN

Klagenfurt

Sat 26/9

11:55-13:00

Nonstop2h 05m

London Stansted

Wed 30/9

12:25-15:30

Nonstop2h 05m

£78

KlagenfurtLondon

KLU Klagenfurt - STN London Stansted

KLUSTN

Klagenfurt

Sat 12/9

11:55-13:00

Nonstop2h 05m

London Stansted

Sat 19/9

08:10-11:15

Nonstop2h 05m

£78

KlagenfurtLondon

KLU Klagenfurt - STN London Stansted

KLUSTN

Klagenfurt

Mon 14/9

10:30-11:35

Nonstop2h 05m

London Stansted

Sat 19/9

08:10-11:15

Nonstop2h 05m

£82

KlagenfurtLondon

KLU Klagenfurt - STN London Stansted

KLUSTN

Klagenfurt

Mon 7/9

10:30-11:35

Nonstop2h 05m

London Stansted

Mon 21/9

06:45-09:50

Nonstop2h 05m

£84

KlagenfurtLondon

KLU Klagenfurt - STN London Stansted

KLUSTN

Klagenfurt

Wed 23/9

16:05-17:10

Nonstop2h 05m

London Stansted

Sat 26/9

08:10-11:15

Nonstop2h 05m

£84

KlagenfurtLondon

KLU Klagenfurt - LTN London Luton

KLULTN

Klagenfurt

Tue 29/9

15:15-00:30

1 stop10h 15m

London Luton

Tue 6/10

17:45-17:20

2 stops22h 35m

£138

Flights are sorted by cheapest return flights first.

Deals found on 16/8

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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

Cheapflights Insights

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

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 £39). Flying from Klagenfurt to London in August is currently the most expensive (average of £145). 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?

Airfare is below average for this route at the moment.
Klagenfurt to London flights typically cost between £103 and £181 in October.
The cheapest return price found within the last 5 days was £56 on Ryanair (12 Oct–17 Oct).

How often are flights from Klagenfurt to London delayed?

About 26% of weekly flights between Klagenfurt and London have experienced delays in the past year, with the average delay time being 114 minutes.

What is the most punctual flight time for Klagenfurt to London flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Klagenfurt to London flights?

Over the past year, Ryanair have had the lowest number of delays on this route, with just 26% of flights being delayed.

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

The best time to book flights from Klagenfurt to London is 40 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.

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.

  • How long is the flight from Klagenfurt to London?

    There are many flights that can get you from Klagenfurt to London in 2h 05m. Fly via Ryanair to get the fastest option. Airlines will cover a distance of 729 mi. Most flights are nonstop.

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

    When deciding which route to take from Klagenfurt to London consider Klagenfurt - London Gatwick, Klagenfurt - London Luton or Klagenfurt - London City 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 £39). Flying from Klagenfurt to London in August is currently the most expensive (average of £145). 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?

Book flights to London if you plan to visit one of these locations
Hounslow
Milton Keynes
Luton
Wembley
Gatwick
Slough
Ilford
Hayes
Croydon
Colchester
Eastbourne
Brentford
Southend-on-Sea
Barnet
Enfield
Kingston upon Thames
Southall
Watford
Dover
Romford

Browse thousands of different options on Cheapflights for your next trip

Fly with Cheapflights

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.