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 £155, 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 day to fly round-trip from London Heathrow Airport to Klagenfurt?

Departing on a Sunday is a good option for securing a great price. You can expect to save up to 62% when planning your travel around this day of the week.

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

Due to multiple factors, expect to potentially pay more when booking in September. For low rates, January can be a great choice for travel to Klagenfurt. Flights to Klagenfurt from London Heathrow Airport in January are about £148 on average during January, but can be found for as low as £26.

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.

£107+ Flights from London Heathrow Airport to Klagenfurt

Cheap flight deals from Heathrow to Klagenfurt

Round-trip from	£178
One-way from	£107
Popular in	September
Cheapest in	January
Average price	£213

Austrian Airlines
25/11-29/11
2 total stops
16h 15m total
London to Klagenfurt

Search Deals

Eurowings
1/9
1 total stop
9h 40m total
London to Klagenfurt

Search Deals

Highest demand for flights based on searches. 26% potential increase in price (£38 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 August 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 26 August 2025.

Tue 25/1106:00LHR - KLU

1 stop6h 55mAustrian Airlines

Sat 29/1105:45KLU - LHR

1 stop9h 20mAustrian Airlines

Deal found 24/8£178

Sun 30/1106:00LHR - KLU

1 stop16h 25mAustrian Airlines

Sun 7/1214:40KLU - LHR

1 stop18h 40mAustrian Airlines

Deal found 25/8£180

Tue 23/906:00LHR - KLU

1 stop7h 00mAustrian Airlines

Tue 30/905:45KLU - LHR

1 stop4h 00mAustrian Airlines

Deal found 24/8£190

Tue 25/1106:35LHR - KLU

2 stops6h 20mMultiple Airlines

Sat 29/1114:50KLU - LHR

1 stop4h 50mMultiple Airlines

Deal found 24/8£192

Sun 30/1107:40LHR - KLU

2 stops5h 15mMultiple Airlines

Sun 7/1214:40KLU - LHR

1 stop18h 40mMultiple Airlines

Deal found 25/8£196

Sun 14/906:00LHR - KLU

1 stop7h 00mAustrian Airlines

Wed 17/905:45KLU - LHR

1 stop4h 15mAustrian Airlines

Deal found 25/8£198

Tue 23/913:30LHR - KLU

2 stops8h 55mMultiple Airlines

Tue 30/905:45KLU - LHR

1 stop4h 00mMultiple Airlines

Deal found 24/8£209

Thu 9/1006:00LHR - KLU

1 stop7h 00mAustrian Airlines

Sun 12/1015:00KLU - LHR

1 stop18h 20mAustrian Airlines

Deal found 25/8£210

Tue 25/1106:35LHR - KLU

2 stops6h 20mLufthansa

Sat 29/1105:45KLU - LHR

2 stops8h 05mLufthansa

Deal found 24/8£213

Thu 16/1006:00LHR - KLU

1 stop16h 25mAustrian Airlines

Sun 19/1015:00KLU - LHR

1 stop18h 20mAustrian Airlines

Deal found 24/8£214

Sun 14/906:00LHR - KLU

1 stop7h 00mMultiple Airlines

Wed 17/905:45KLU - LHR

2 stops8h 05mMultiple Airlines

Deal found 25/8£217

Thu 9/1006:55LHR - KLU

2 stops6h 05mMultiple Airlines

Sun 12/1015:00KLU - LHR

1 stop19h 00mMultiple Airlines

Deal found 24/8£228

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 26 August 2025.

Tue 25/1106:00LHR - KLU

1 stop6h 55mAustrian Airlines

Sat 29/1105:45KLU - LHR

1 stop9h 20mAustrian Airlines

Deal found 24/8£178

Tue 25/1106:35LHR - KLU

2 stops6h 20mMultiple Airlines

Sat 29/1114:50KLU - LHR

1 stop4h 50mMultiple Airlines

Deal found 24/8£192

Wed 26/1107:40LHR - KLU

2 stops5h 15mLufthansa

Sat 29/1105:45KLU - LHR

2 stops10h 00mLufthansa

Deal found 24/8£213

Wed 26/1106:00LHR - KLU

1 stop6h 55mAustrian Airlines

Sat 29/1105:45KLU - LHR

1 stop9h 20mAustrian Airlines

Deal found 24/8£178

Wed 26/1107:40LHR - KLU

2 stops5h 15mMultiple Airlines

Sat 29/1114:50KLU - LHR

1 stop4h 50mMultiple Airlines

Deal found 24/8£192

Sun 30/1106:00LHR - KLU

1 stop16h 25mAustrian Airlines

Sun 7/1214:40KLU - LHR

1 stop18h 40mAustrian Airlines

Deal found 25/8£180

Sun 30/1107:40LHR - KLU

2 stops5h 15mMultiple Airlines

Sun 7/1214:40KLU - LHR

1 stop18h 40mMultiple Airlines

Deal found 25/8£196

Tue 23/906:00LHR - KLU

1 stop7h 00mAustrian Airlines

Tue 30/905:45KLU - LHR

1 stop4h 00mAustrian Airlines

Deal found 24/8£190

Tue 23/913:30LHR - KLU

2 stops8h 55mMultiple Airlines

Tue 30/905:45KLU - LHR

1 stop4h 00mMultiple Airlines

Deal found 24/8£209

Sun 14/906:00LHR - KLU

1 stop7h 00mAustrian Airlines

Wed 17/905:45KLU - LHR

1 stop4h 15mAustrian Airlines

Deal found 25/8£198

Thu 9/1009:05LHR - KLU

1 stop3h 55mAustrian Airlines

Sun 12/1015:00KLU - LHR

1 stop18h 20mAustrian Airlines

Deal found 24/8£210

Last-minute flights from Heathrow to Klagenfurt
Discover last-minute flight deals from Heathrow to Klagenfurt. Data last updated 26 August 2025 and is based on user searches.

Sun 31/806:00LHR - KLU

1 stop7h 00mAustrian Airlines

Tue 23/915:00KLU - LHR

1 stop4h 40mAustrian Airlines

Deal found 24/8£245

Mon 1/906:00LHR - KLU

1 stop16h 25mAustrian Airlines

Wed 24/905:45KLU - LHR

1 stop4h 15mAustrian Airlines

Deal found 25/8£239

Wed 3/915:05LHR - KLU

1 stop7h 20mAustrian Airlines

Sat 6/905:45KLU - LHR

1 stop4h 15mAustrian Airlines

Deal found 24/8£267

Sun 14/906:00LHR - KLU

1 stop7h 00mAustrian Airlines

Wed 17/905:45KLU - LHR

1 stop4h 15mAustrian Airlines

Deal found 25/8£198

Sun 14/906:00LHR - KLU

1 stop7h 00mMultiple Airlines

Wed 17/905:45KLU - LHR

2 stops8h 05mMultiple Airlines

Deal found 25/8£217

Sun 14/907:25LHR - KLU

2 stops5h 35mLufthansa

Wed 17/905:45KLU - LHR

2 stops8h 05mLufthansa

Deal found 25/8£237

Thu 18/906:00LHR - KLU

1 stop7h 00mAustrian Airlines

Sun 21/915:00KLU - LHR

1 stop19h 00mAustrian Airlines

Deal found 24/8£232

Thu 18/907:25LHR - KLU

2 stops5h 35mMultiple Airlines

Sun 21/915:00KLU - LHR

1 stop18h 20mMultiple Airlines

Deal found 24/8£253

Tue 23/906:00LHR - KLU

1 stop7h 00mAustrian Airlines

Tue 30/905:45KLU - LHR

1 stop4h 00mAustrian Airlines

Deal found 24/8£190

Tue 23/913:30LHR - KLU

2 stops8h 55mMultiple Airlines

Tue 30/905:45KLU - LHR

1 stop4h 00mMultiple Airlines

Deal found 24/8£209

Tue 23/913:30LHR - KLU

2 stops8h 55mLufthansa

Tue 30/905:45KLU - LHR

2 stops7h 55mLufthansa

Deal found 24/8£231

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 26 August 2025.

Mon 1/908:50LHR - KLU

1 stop9h 40mEurowings

Deal found 25/8£107

Fri 5/908:50LHR - KLU

1 stop6h 25mEurowings

Deal found 25/8£110

Thu 18/918:50LHR - KLU

2 stops26h 20mMultiple Airlines

Deal found 26/8£118

Sat 6/1206:00LHR - KLU

1 stop6h 55mAustrian Airlines

Deal found 24/8£139

Sun 30/1106:00LHR - KLU

1 stop6h 55mAustrian Airlines

Deal found 24/8£140

Thu 30/1006:00LHR - KLU

1 stop6h 55mAustrian Airlines

Deal found 25/8£142

Sun 7/920:00LHR - KLU

1 stop16h 50mEurowings

Deal found 25/8£145

Thu 18/920:00LHR - KLU

1 stop19h 15mEurowings

Deal found 26/8£149

Thu 30/1007:40LHR - KLU

2 stops5h 15mLufthansa

Deal found 25/8£150

Mon 8/1208:45LHR - KLU

2 stops13h 40mLufthansa

Deal found 24/8£164

Tue 9/1208:45LHR - KLU

2 stops13h 40mLufthansa

Deal found 24/8£165

Fri 31/1015:30LHR - KLU

2 stops6h 55mLufthansa

Deal found 25/8£168

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

Tue 25/11

06:00-13:55

1 stop6h 55m

Klagenfurt

Sat 29/11

05:45-14:05

1 stop9h 20m

£178

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

Wed 26/11

06:00-13:55

1 stop6h 55m

Klagenfurt

Sat 29/11

05:45-14:05

1 stop9h 20m

£178

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

Sun 30/11

06:00-23:25

1 stop16h 25m

Klagenfurt

Sun 7/12

14:40-08:20

1 stop18h 40m

£180

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

Tue 23/9

06:00-14:00

1 stop7h 00m

Klagenfurt

Tue 30/9

05:45-08:45

1 stop4h 00m

£190

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

Tue 25/11

06:35-13:55

2 stops6h 20m

Klagenfurt

Sat 29/11

14:50-18:40

1 stop4h 50m

£192

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

Wed 26/11

07:40-13:55

2 stops5h 15m

Klagenfurt

Sat 29/11

14:50-18:40

1 stop4h 50m

£192

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

Sun 30/11

07:40-13:55

2 stops5h 15m

Klagenfurt

Sun 7/12

14:40-08:20

1 stop18h 40m

£196

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

Sun 14/9

06:00-14:00

1 stop7h 00m

Klagenfurt

Wed 17/9

05:45-09:00

1 stop4h 15m

£198

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

Tue 23/9

13:30-23:25

2 stops8h 55m

Klagenfurt

Tue 30/9

05:45-08:45

1 stop4h 00m

£209

LondonKlagenfurt

LHR - KLU

LHRKLU

London Heathrow

Thu 9/10

09:05-14:00

1 stop3h 55m

Klagenfurt

Sun 12/10

15:00-08:20

1 stop18h 20m

£210

Flights are sorted by cheapest return flights first.

Deals found on 25/8

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

836 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Aug 2025

VIE - RHO

They went by offering coffee and didn’t even asked me totally ignored me

Austrian Airlines

7.6

Good

836 reviews

Austrian Airlines

7.6

Good

836 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Aug 2025

VIE - RHO

They went by offering coffee and didn’t even asked me totally ignored me

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 £155, 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Heathrow to Klagenfurt

Airline	Cheapest	Average	Flexibility	On-time
Austrian Airlines	Cheapest£155	Average£253	FlexibilityNo cancel fee	On-time78%	Search Austrian Airlines flights

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Klagenfurt from Heathrow today with Cheapflights!

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 £107

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 1/9. 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 26 August 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 26 August 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 26 August 2025.