Labor unrest in Italy and France could affect Delta Air Lines passengers, the carrier is warning.
A strike by workers at Air France is expected to disrupt flights on the airline, which is a major Delta partner.
Air France says on its website that the strike scheduled for Monday and Tuesday May 7-8 will disrupt its flight schedule, and it expects last minute delays and cancellations Monday.
Air France said it expects to operate 80 percent of its flight schedule Tuesday.
Delta is waiving certain change fees for passengers with flights booked on Air France through May 9.
Atlanta-based Delta also warned passengers that the possibility of industrial action by air traffic controllers in Italy could also affect passengers. The airline is waiving certain change fees for passengers with flights booked to or from Italy on Monday and Tuesday May 7-8.