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Cheap flights from London Heathrow Airport to Klagenfurt from £137

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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — KLU
28 Jan — 4 Feb1
1 adult

Cheap flight deals from Heathrow to Klagenfurt

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Klagenfurt (KLU). 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 23 January 2025.

Round-trip from

£168

One-way from

£137
Austrian Airlines
  • Austrian Airlines
  • 8/2-9/2
  • 2 total stops
  • 10h 55m total
  • London to Klagenfurt
Search Deals
Austrian Airlines
  • Austrian Airlines
  • 5/3
  • 1 total stop
  • 7h 00m total
  • London to Klagenfurt
Search Deals

Find flight deals from Heathrow to Klagenfurt

Cheapest flights from Heathrow to Klagenfurt
Explore the most affordable flight options available from Heathrow to Klagenfurt. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 January 2025.

Sat 8/206:00LHR - KLU
1 stop3h 30mAustrian Airlines
Sun 9/215:15KLU - LHR
1 stop7h 25mAustrian Airlines
Deal found 22/1£168
Sat 8/206:00LHR - KLU
1 stop3h 30mMultiple Airlines
Sun 9/215:15KLU - LHR
2 stops8h 40mMultiple Airlines
Deal found 22/1£189
Sun 2/311:30LHR - KLU
2 stops10h 55mLufthansa
Thu 6/314:50KLU - LHR
2 stops9h 05mLufthansa
Deal found 22/1£218

Find flights from Heathrow to Klagenfurt within your budget

Customise your flight search to find flights from Heathrow to Klagenfurt 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 23 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

Sat 8/2

06:00-10:30

1 stop3h 30m

Klagenfurt

Sun 9/2

15:15-21:40

1 stop7h 25m

£168

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

Sat 8/2

06:00-10:30

1 stop3h 30m

Klagenfurt

Sun 9/2

15:15-22:55

2 stops8h 40m

£189

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

Sun 2/3

11:30-23:25

2 stops10h 55m

Klagenfurt

Thu 6/3

14:50-22:55

2 stops9h 05m

£218

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

Wed 5/3

06:00-14:00

1 stop7h 00m

£137

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

Wed 5/3

13:50-23:25

2 stops8h 35m

£150

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

Sun 18/5

14:45-13:50

1 stop22h 05m

£156

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

Fri 14/2

11:40-10:30

3 stops21h 50m

£252

Flights are sorted by cheapest return flights first.

Deals found on 23/1

Best time to book a flight from Heathrow to Klagenfurt

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

Travel insights for flights from Heathrow to Klagenfurt

Get recent, data-driven insights about flights from Heathrow to Klagenfurt including ideal travel times, pricing trends, and more.

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 23 January 2025.
Austrian Airlines
7.5
Good
787 reviews
Check prices

Food

6.7

Boarding

7.6

Comfort

7.3

Crew

8.1

Entertainment

6.7

Overall

7.5

Reviews

1 / 10

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

Austrian Airlines
7.5
Good
787 reviews
Austrian Airlines
7.5
Good
787 reviews
Check prices

Food

6.7

Boarding

7.6

Comfort

7.3

Crew

8.1

Entertainment

6.7

Overall

7.5

Reviews

1 / 10

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

Lufthansa
6.8
Okay
7,102 reviews
Austrian Airlines
7.5
Good
787 reviews
Check prices

Food

6.7

Boarding

7.6

Comfort

7.3

Crew

8.1

Entertainment

6.7

Overall

7.5

Reviews

1 / 10

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

Eurowings
6.7
Okay
285 reviews
Austrian Airlines
7.5
Good
787 reviews
Check prices

Food

6.7

Boarding

7.6

Comfort

7.3

Crew

8.1

Entertainment

6.7

Overall

7.5

Reviews

1 / 10

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

Related info for your journey

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

    Klagenfurt (KLU) is the airport you will fly into if you book a flight from London Heathrow to Klagenfurt. You should not have trouble finding flights to Klagenfurt from London Heathrow; the airport handles an average of 0 inbound flights from London Heathrow per day. You should also have plenty of airline options to choose from since 1 airline has flights to the Klagenfurt airport from London Heathrow. It is only a 2.0 mi journey from Klagenfurt (KLU) to Klagenfurt’s city center.

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

    Austrian Airlines, at £168, was found to be the cheapest airline from London Heathrow Airport to Klagenfurt. An alternate airline flying to your destination would be Lufthansa.

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

    £137 is the cheapest one-way deal found within the past few days, from Austrian Airlines. You may also be able to find cheap deals on Lufthansa and Eurowings, with prices starting from £150 and £156, respectively.

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

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

  • How can I find direct flights from Heathrow to Klagenfurt?

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

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

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

See more FAQs

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Alternative routes for Heathrow to Klagenfurt

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Heathrow to Klagenfurt

Discover the top airline that operate flights from Heathrow to Klagenfurt. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 23 January 2025.
AirlineCheapestAverageFlexibilityOn-time
Austrian AirlinesCheapest£174Average£248FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights

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

Need flexible booking options for your flight to Klagenfurt from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Klagenfurt from Heathrow today and book when prices fit your budget.

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