COPENHAGEN, Denmark_Scandinavian Airlines canceled more than 60 flights to and from Copenhagen on Tuesday after Danish cabin crew walked out on a wildcat strike, the airline said.
The cancellations affected some 6,000 passengers on European routes, SAS Denmark spokesman Mikkel Londahl said, adding it was not clear how long the strike would last.
"We cannot predict if or when they will return to work again so we can expect more cancellations," he said.
Cabin crew walked off their jobs shortly after 2:15 p.m. (1215GMT) in an apparent protest over working conditions.
Last month, members of the 1,600-strong Danish Cabin Attendants Union briefly went on a similar wildcat strike. A spokesman for the union did not immediately return calls seeking comment on the latest walkout.
Scandinavian Airlines is the joint flag carrier of Sweden, Denmark and Norway.