Fly to Klagenfurt from Portugal during September 2019 for as little as €119.99*.
From just €119.99*
Book your flight from Portugal to Klagenfurt in September 2019 here. Select your desired date in September 2019 and view all the airports in Portugal you can fly to Klagenfurt from on that day.
The best price for flying from Portugal to Klagenfurt (KLU) in September 2019 is just €119.99*.