Scandinavian airline SAS said 380 flights would be canceled this weekend as a result of a strike by Swedish pilots over wage increases, the company said Saturday.
The flights that were cancelled were domestic and European flights to Frankfurt, Paris and London, among other destinations, and affect 46,000 passengers.
The industrial action began Friday, when talks between the pilots' union and SAS broke down, leading the union to call its 400 pilots out on strike.
Danish and Norwegian pilots were flying as normal, the company said.
"We have done everything in our power to avoid this strike, but unfortunately we were not successful in achieving an agreement," an SAS spokeswoman said in a statement.
It was not immediately clear when flights would return to normal.