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£21+ Cheap flights to Klagenfurt

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 29/12. Fares are subject to change and may not be available on all flights or dates of travel.
— KLU
18 Dec — 25 Dec1
1 adult
1 adult, Economy, 0 bags

Flights to Klagenfurt in 2025

Find the latest flights to Klagenfurt in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 18 November 2025.

Return from

£30

One-way from

£21

Popular in

September

Cheapest in

October

Average price

£182
Ryanair
  • Ryanair
  • 6/12-8/12
  • Nonstop
  • 4h 20m total
  • London to Klagenfurt
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Ryanair
  • Ryanair
  • 29/12
  • Nonstop
  • 2h 10m total
  • London to Klagenfurt
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£20 potential increase over avg. return price).
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Cheapest flight prices on average. 6% potential price decrease (£8 potential savings vs. average return price).
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Average for return flights in November 2025
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Find flight deals to Klagenfurt

Enter your travel dates to find the best prices.

Cheapest flights to Klagenfurt
Explore the most affordable flight options available to Klagenfurt. Find the lowest fares based on data from user searches, with prices last updated on 18 November 2025.

Sat 6/1205:55STN - KLU
Nonstop2h 10mRyanair
Mon 8/1210:00KLU - STN
Nonstop2h 10mRyanair
Deal found 17/11£30
Sat 6/1205:55STN - KLU
Nonstop2h 10mMultiple Airlines
Mon 8/1205:45KLU - STN
2 stops17h 45mMultiple Airlines
Deal found 17/11£200
Wed 31/1219:15LHR - KLU
2 stops41h 35mMultiple Airlines
Wed 7/115:15KLU - LHR
1 stop18h 05mMultiple Airlines
Deal found 16/11£205
Wed 31/1219:15LHR - KLU
2 stops41h 35mLufthansa
Wed 7/115:15KLU - LHR
2 stops8h 40mLufthansa
Deal found 16/11£220
Sat 6/1206:30LHR - KLU
2 stops6h 25mMultiple Airlines
Mon 8/1214:50KLU - LHR
1 stop18h 30mMultiple Airlines
Deal found 17/11£242
Sat 6/1206:00LHR - KLU
1 stop6h 55mAustrian Airlines
Mon 8/1214:50KLU - LHR
1 stop18h 30mAustrian Airlines
Deal found 17/11£243
Sat 6/1220:15LHR - KLU
2 stops16h 40mLufthansa
Mon 8/1214:50KLU - LHR
2 stops9h 05mLufthansa
Deal found 17/11£245
Wed 31/1218:10LCY - KLU
2 stops42h 40mLufthansa
Wed 7/115:15KLU - LCY
2 stops18h 50mLufthansa
Deal found 16/11£267
Sun 14/1207:40LHR - KLU
2 stops5h 15mMultiple Airlines
Tue 6/115:15KLU - LHR
1 stop7h 25mMultiple Airlines
Deal found 16/11£280
Sun 14/1207:40LHR - KLU
2 stops5h 15mLufthansa
Tue 6/115:15KLU - LHR
2 stops6h 45mLufthansa
Deal found 16/11£294
Mon 29/1206:10STN - KLU
Nonstop2h 10mMultiple Airlines
Mon 29/1215:15KLU - STN
2 stops27h 25mMultiple Airlines
Deal found 17/11£300
Sun 14/1206:00LHR - KLU
1 stop6h 55mAustrian Airlines
Tue 6/115:15KLU - LHR
1 stop7h 25mAustrian Airlines
Deal found 16/11£311

Cheapflights Fare Finder

 
Locate flights to Klagenfurt that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 18 November 2025.
Use the filters below to find and compare flights to Klagenfurt that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonKlagenfurt

STN - KLU

STNKLU

London Stansted

Sat 6/12

05:55-09:05

Nonstop2h 10m

Klagenfurt

Mon 8/12

10:00-11:10

Nonstop2h 10m

£30

LondonKlagenfurt

STN - KLU

STNKLU

London Stansted

Mon 2/2

06:10-09:20

Nonstop2h 10m

Klagenfurt

Mon 9/2

10:00-11:10

Nonstop2h 10m

£45

LondonKlagenfurt

STN - KLU

STNKLU

London Stansted

Mon 2/2

06:10-09:20

Nonstop2h 10m

Klagenfurt

Sat 7/2

09:30-10:40

Nonstop2h 10m

£50

LondonKlagenfurt

STN - KLU

STNKLU

London Stansted

Mon 2/2

06:10-09:20

Nonstop2h 10m

Klagenfurt

Fri 6/2

15:15-19:10

1 stop4h 55m

£136

LondonKlagenfurt

STN - KLU

STNKLU

London Stansted

Mon 2/2

06:10-09:20

Nonstop2h 10m

Klagenfurt

Sat 7/2

16:00-19:10

1 stop4h 10m

£136

LondonKlagenfurt

STN - KLU

STNKLU

London Stansted

Thu 5/2

08:00-13:50

1 stop4h 50m

Klagenfurt

Mon 9/2

10:00-11:10

Nonstop2h 10m

£169

LondonKlagenfurt

STN - KLU

STNKLU

London Stansted

Thu 5/2

08:00-13:50

1 stop4h 50m

Klagenfurt

Sat 7/2

09:30-10:40

Nonstop2h 10m

£174

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

Wed 4/2

06:00-13:50

1 stop6h 50m

Klagenfurt

Mon 9/2

15:15-18:40

1 stop4h 25m

£176

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

Thu 5/2

06:00-13:50

1 stop6h 50m

Klagenfurt

Mon 9/2

15:15-18:40

1 stop4h 25m

£176

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

Wed 11/2

06:00-13:50

1 stop6h 50m

Klagenfurt

Wed 18/2

15:15-18:40

1 stop4h 25m

£176

Flights are sorted by cheapest return flights first.

Deals found on 17/11

Showing 1-10 of 60 results
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Best time to book a flight to Klagenfurt

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

When is the best time to book a flight 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 14 November 2025.

Booking 4 days in advance of your planned departure date is, on average, the best time to get cheap flights to Klagenfurt. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

How long is the flight to Klagenfurt?

On average, a flight from London to Klagenfurt takes 12 hours 13 minutes. Flights to Klagenfurt from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

What are the most popular airlines that fly to Klagenfurt?

The most popular airlines flying from London to Klagenfurt are Ryanair and Austrian Airlines.

Ryanair
Ryanair
From £26
Austrian Airlines
Austrian Airlines
From £158

What are the cheapest airlines that fly to Klagenfurt?

The cheapest airlines flying from London to Klagenfurt are Ryanair and Austrian Airlines.

Rainfall in Klagenfurt by month

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

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.

Temperature in Klagenfurt by month

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

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).

Reviews of airlines servicing Klagenfurt

Get insights into the airlines that provide service to Klagenfurt. 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 Klagenfurt. Reviews last updated 18 November 2025.
Get a feel of what it's like to fly with Austrian Airlines and Ryanair to Austria by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
873 reviews
Check prices

Overall

7.6

Entertainment

6.8

Crew

8.1

Boarding

7.6

Comfort

7.3

Food

6.8

Reviews

1 / 20
10.0
Excellent

Andrew,Sept 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
Austrian Airlines
7.6
Good
873 reviews
Austrian Airlines
7.6
Good
873 reviews
Check prices

Overall

7.6

Entertainment

6.8

Crew

8.1

Boarding

7.6

Comfort

7.3

Food

6.8

Reviews

1 / 20
10.0
Excellent

Andrew,Sept 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
Ryanair
6.8
Okay
5,194 reviews
Austrian Airlines
7.6
Good
873 reviews
Check prices

Overall

7.6

Entertainment

6.8

Crew

8.1

Boarding

7.6

Comfort

7.3

Food

6.8

Reviews

1 / 20
10.0
Excellent

Andrew,Sept 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.

FAQs about flying to Klagenfurt

  • What airport do you fly into for flights to Klagenfurt?

    Travelers will need to book flights to Klagenfurt (KLU) if they wish to fly to Klagenfurt. The Klagenfurt airport is 2.0 mi from the city center.

  • Can I find cheaper flights to Klagenfurt if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Klagenfurt on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Klagenfurt?

    Based on reviews from Cheapflights users, Ryanair is rated the highest out of the airlines that fly to Klagenfurt.

  • Where does the fastest flight to Klagenfurt depart from?

    For those looking to save time traveling to Klagenfurt, London offers the quickest one-way flight (2 hours 5 minutes).

  • Does Klagenfurt have car hire?

    Yes. Those touching down at Klagenfurt can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Klagenfurt?

    Yes. Klagenfurt has hotels nearby for those requiring accommodations. Schlosshotel St. Georgen is the closest property to Klagenfurt (0.0 mi away from Klagenfurt).

See more FAQs

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How does Cheapflights help users find flights to Klagenfurt?

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

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Certainly. Search results for flights to Klagenfurt shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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