How long is the flight from London Heathrow Airport to Klagenfurt?

Airlines like Austrian Airlines fly from London Heathrow Airport to Klagenfurt in about 6h 55m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 745 mi.

What is the cheapest airline to fly from London Heathrow Airport to Klagenfurt round-trip?

Austrian Airlines, at £154, was found to be the cheapest airline from London Heathrow Airport to Klagenfurt..

What is the cheapest day to fly from London Heathrow Airport to Klagenfurt?

Travellers seeking maximum savings on their London Heathrow Airport to Klagenfurt flight should consider departing on Thursday mornings when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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.

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).

What is the cheapest time of day to fly from LHR to KLU?

When flying from London Heathrow Airport to Klagenfurt, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 7% versus a flight in the morning.

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.

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.

£98+ Flights from London Heathrow Airport to Klagenfurt

Cheap flight deals from Heathrow to Klagenfurt

Round-trip from	£169
One-way from	£98
Popular in	September
Cheapest in	January
Average price	£220

Austrian Airlines
31/10-7/11
2 total stops
14h 45m total
London to Klagenfurt

Search Deals

18/10
2 total stops
20h 50m total
London to Klagenfurt

Search Deals

Highest demand for flights based on searches. 27% potential increase in price (£39 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (£6 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

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 18 9月 2025.

週五 31/1006:00LHR - KLU

1 stop6h 55mAustrian Airlines

週五 7/1114:50KLU - LHR

1 stop7h 50mAustrian Airlines

Deal found 16/9£169

週一 27/1006:00LHR - KLU

1 stop6h 55mAustrian Airlines

週五 31/1005:45KLU - LHR

1 stop13h 55mAustrian Airlines

Deal found 17/9£174

週六 1/1106:00LHR - KLU

1 stop6h 55mAustrian Airlines

週六 8/1105:45KLU - LHR

1 stop13h 55mAustrian Airlines

Deal found 17/9£177

週四 6/1106:00LHR - KLU

1 stop6h 55mAustrian Airlines

週日 9/1114:40KLU - LHR

1 stop8h 00mAustrian Airlines

Deal found 17/9£180

週日 2/1105:00LHR - KLU

1 stop16h 25mAustrian Airlines

週日 9/1114:40KLU - LHR

1 stop8h 00mAustrian Airlines

Deal found 18/9£181

週五 31/1006:00LHR - KLU

1 stop6h 55mMultiple Airlines

週五 7/1114:50KLU - LHR

2 stops9h 05mMultiple Airlines

Deal found 16/9£185

週六 1/1106:00LHR - KLU

1 stop6h 55mMultiple Airlines

週六 8/1105:45KLU - LHR

2 stops8h 15mMultiple Airlines

Deal found 17/9£192

週一 27/1006:35LHR - KLU

2 stops15h 50mMultiple Airlines

週五 31/1005:45KLU - LHR

1 stop9h 20mMultiple Airlines

Deal found 17/9£198

週四 6/1107:40LHR - KLU

2 stops5h 15mMultiple Airlines

週日 9/1114:40KLU - LHR

1 stop24h 25mMultiple Airlines

Deal found 17/9£199

週日 2/1105:00LHR - KLU

1 stop16h 25mMultiple Airlines

週日 9/1114:40KLU - LHR

2 stops9h 15mMultiple Airlines

Deal found 18/9£202

週五 17/1006:00LHR - KLU

1 stop16h 25mAustrian Airlines

週一 20/1015:00KLU - LHR

1 stop4h 40mAustrian Airlines

Deal found 18/9£212

週一 29/1206:00LHR - KLU

1 stop6h 50mAustrian Airlines

週六 3/116:00KLU - LHR

1 stop17h 20mAustrian Airlines

Deal found 17/9£212

Best flights from Heathrow to Klagenfurt
Discover carefully curated flight deals from Heathrow to Klagenfurt that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 9月 2025.

週五 31/1006:00LHR - KLU

1 stop6h 55mAustrian Airlines

週五 7/1114:50KLU - LHR

1 stop7h 50mAustrian Airlines

Deal found 16/9£169

週五 31/1006:00LHR - KLU

1 stop6h 55mMultiple Airlines

週五 7/1114:50KLU - LHR

2 stops9h 05mMultiple Airlines

Deal found 16/9£185

週四 19/211:10LHR - KLU

2 stops11h 10mLufthansa

週日 22/215:15KLU - LHR

2 stops26h 50mLufthansa

Deal found 16/9£208

週一 27/1006:00LHR - KLU

1 stop6h 55mAustrian Airlines

週五 31/1005:45KLU - LHR

1 stop13h 55mAustrian Airlines

Deal found 17/9£174

週六 1/1106:00LHR - KLU

1 stop6h 55mMultiple Airlines

週六 8/1105:45KLU - LHR

2 stops8h 15mMultiple Airlines

Deal found 17/9£192

週六 1/1106:00LHR - KLU

1 stop6h 55mAustrian Airlines

週六 8/1105:45KLU - LHR

1 stop13h 55mAustrian Airlines

Deal found 17/9£177

週四 19/211:10LHR - KLU

2 stops11h 10mMultiple Airlines

週日 22/215:15KLU - LHR

1 stop18h 05mMultiple Airlines

Deal found 16/9£192

週四 19/214:50LHR - KLU

1 stop7h 30mAustrian Airlines

週日 22/215:15KLU - LHR

1 stop18h 05mAustrian Airlines

Deal found 16/9£177

週一 27/1006:35LHR - KLU

2 stops15h 50mMultiple Airlines

週五 31/1005:45KLU - LHR

1 stop9h 20mMultiple Airlines

Deal found 17/9£198

週四 6/1106:00LHR - KLU

1 stop6h 55mAustrian Airlines

週日 9/1114:40KLU - LHR

1 stop8h 00mAustrian Airlines

Deal found 17/9£180

週日 2/1105:00LHR - KLU

1 stop16h 25mAustrian Airlines

週日 9/1114:40KLU - LHR

1 stop8h 00mAustrian Airlines

Deal found 18/9£181

週日 2/1105:00LHR - KLU

1 stop16h 25mMultiple Airlines

週日 9/1114:40KLU - LHR

2 stops9h 15mMultiple Airlines

Deal found 18/9£202

Last-minute flights from Heathrow to Klagenfurt
Discover last-minute flight deals from Heathrow to Klagenfurt. Data last updated 18 9月 2025 and is based on user searches.

週四 25/906:00LHR - KLU

1 stop7h 00mAustrian Airlines

週四 2/1015:00KLU - LHR

1 stop4h 40mAustrian Airlines

Deal found 17/9£270

週四 9/1009:05LHR - KLU

1 stop3h 55mAustrian Airlines

週日 12/1015:00KLU - LHR

1 stop18h 20mAustrian Airlines

Deal found 17/9£241

週五 17/1006:00LHR - KLU

1 stop16h 25mAustrian Airlines

週一 20/1015:00KLU - LHR

1 stop4h 40mAustrian Airlines

Deal found 18/9£212

週五 17/1006:00LHR - KLU

1 stop16h 25mMultiple Airlines

週一 20/1015:00KLU - LHR

2 stops8h 40mMultiple Airlines

Deal found 18/9£237

週五 17/1006:55LHR - KLU

2 stops15h 30mLufthansa

週一 20/1015:00KLU - LHR

2 stops8h 40mLufthansa

Deal found 18/9£284

週一 27/1006:00LHR - KLU

1 stop6h 55mAustrian Airlines

週五 31/1005:45KLU - LHR

1 stop13h 55mAustrian Airlines

Deal found 17/9£174

週一 27/1006:35LHR - KLU

2 stops15h 50mMultiple Airlines

週五 31/1005:45KLU - LHR

1 stop9h 20mMultiple Airlines

Deal found 17/9£198

週一 27/1006:35LHR - KLU

2 stops6h 20mLufthansa

週五 31/1005:45KLU - LHR

2 stops10h 00mLufthansa

Deal found 17/9£243

週五 31/1006:00LHR - KLU

1 stop6h 55mAustrian Airlines

週五 7/1114:50KLU - LHR

1 stop7h 50mAustrian Airlines

Deal found 16/9£169

週五 31/1006:00LHR - KLU

1 stop6h 55mMultiple Airlines

週五 7/1114:50KLU - LHR

2 stops9h 05mMultiple Airlines

Deal found 16/9£185

週五 31/1011:30LHR - KLU

2 stops10h 55mLufthansa

週五 7/1114:50KLU - LHR

2 stops9h 05mLufthansa

Deal found 16/9£218

One-way flights from Heathrow to Klagenfurt
Search for one-way flight options from Heathrow to Klagenfurt. Find affordable one-way fares based on user searches. Data last updated 18 9月 2025.

週六 18/1020:50LHR - KLU

2 stops20h 50mMultiple Airlines

Deal found 17/9£98

週二 23/920:50LHR - KLU

2 stops18h 30mMultiple Airlines

Deal found 16/9£114

週一 20/1016:50LHR - KLU

2 stops14h 25mMultiple Airlines

Deal found 17/9£137

週一 20/1006:00LHR - KLU

1 stop7h 00mAustrian Airlines

Deal found 17/9£138

週六 18/1006:00LHR - KLU

1 stop7h 00mAustrian Airlines

Deal found 17/9£140

週六 1/1106:00LHR - KLU

1 stop6h 55mAustrian Airlines

Deal found 16/9£141

週一 13/1006:00LHR - KLU

1 stop7h 00mAustrian Airlines

Deal found 17/9£160

週一 13/1020:25LHR - KLU

2 stops16h 35mLufthansa

Deal found 17/9£173

週六 1/1107:40LHR - KLU

2 stops5h 15mLufthansa

Deal found 16/9£183

週二 23/906:00LHR - KLU

1 stop7h 00mAustrian Airlines

Deal found 16/9£249

週六 1/1120:15LHR - KLU

3 stops16h 40mMultiple Airlines

Deal found 16/9£399

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Klagenfurt that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

週五 31/10

06:00-13:55

1 stop6h 55m

Klagenfurt

週五 7/11

14:50-21:40

1 stop7h 50m

£169

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

週一 27/10

06:00-13:55

1 stop6h 55m

Klagenfurt

週五 31/10

05:45-18:40

1 stop13h 55m

£174

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

週六 1/11

06:00-13:55

1 stop6h 55m

Klagenfurt

週六 8/11

05:45-18:40

1 stop13h 55m

£177

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

週四 19/2

14:50-23:20

1 stop7h 30m

Klagenfurt

週日 22/2

15:15-08:20

1 stop18h 05m

£177

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

週四 6/11

06:00-13:55

1 stop6h 55m

Klagenfurt

週日 9/11

14:40-21:40

1 stop8h 00m

£180

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

週日 2/11

05:00-22:25

1 stop16h 25m

Klagenfurt

週日 9/11

14:40-21:40

1 stop8h 00m

£181

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

週五 31/10

06:00-13:55

1 stop6h 55m

Klagenfurt

週五 7/11

14:50-22:55

2 stops9h 05m

£185

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

週六 1/11

06:00-13:55

1 stop6h 55m

Klagenfurt

週六 8/11

05:45-13:00

2 stops8h 15m

£192

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

週四 19/2

11:10-23:20

2 stops11h 10m

Klagenfurt

週日 22/2

15:15-08:20

1 stop18h 05m

£192

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

週一 27/10

06:35-23:25

2 stops15h 50m

Klagenfurt

週五 31/10

05:45-14:05

1 stop9h 20m

£198

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 23 results

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.

Reviews of airlines servicing Klagenfurt

Read reviews from past customers who have flown with Austrian Airlines from London Heathrow Airport to Klagenfurt. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Austrian Airlines

7.6

Good

850 reviews

Check prices

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

850 reviews

Austrian Airlines

7.6

Good

850 reviews

Check prices

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.

Related info for your journey

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.
How long is the flight from London Heathrow Airport to Klagenfurt?
Airlines like Austrian Airlines fly from London Heathrow Airport to Klagenfurt in about 6h 55m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 745 mi.
What is the cheapest airline to fly from London Heathrow Airport to Klagenfurt round-trip?
Austrian Airlines, at £154, was found to be the cheapest airline from London Heathrow Airport to Klagenfurt..
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

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Top airline flying from Heathrow to Klagenfurt

Airline	Cheapest	Average	Flexibility	On-time
Austrian Airlines	Cheapest£154	Average£250	FlexibilityNo cancel fee	On-time78%	Search Austrian Airlines flights

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How does Cheapflights help users find flights from Heathrow to Klagenfurt?

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

Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to Klagenfurt for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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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Cheap flights from London Heathrow Airport to Klagenfurt from £98

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 18/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Klagenfurt

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Heathrow to Klagenfurt

Cheapest flights from Heathrow to KlagenfurtExplore 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 18 9月 2025.

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 18 9月 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Klagenfurt that are best for you.

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.

Reviews of airlines servicing Klagenfurt

Read reviews from past customers who have flown with Austrian Airlines from London Heathrow Airport to Klagenfurt. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

How long is the flight from London Heathrow Airport to Klagenfurt?

What is the cheapest airline to fly from London Heathrow Airport to Klagenfurt round-trip?

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

How can I find direct flights from Heathrow to Klagenfurt?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Heathrow to Klagenfurt

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Heathrow to Klagenfurt

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 Heathrow to Klagenfurt?

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

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

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

100% Free

Book with Flexibility

Travel Smart

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 18 9月 2025.