American Airlines says it doesn’t expect significant disruptions to flights this week as a result of a labor strike at its hub in Charlotte, North Carolina

Employees went on strike Monday to protest their current wages, but have returned to work despite the situation remaining unsolved.

A new U.S. Department of Transportation rule that went into effect last month says if your flight is delayed by more than three hours for domestic trips, or more than six hours for international trips, you’re automatically entitled to a refund if you choose not to travel on the delayed flight, USA Today reported.