Latest Airline Advice As More Than 1,000 Flights Canceled — FAA Ground Stop

U.S. airlines were still dealing with cancellations Sunday after a telecommunications failure prompted the FAA to halt departures nationwide for more than four hours on Friday. Friday’s shutdown affected the entire U.S. aviation system, rather than an individual airport or region.

American Airlines, Delta Air Lines and JetBlue are among carriers offering customers additional flexibility to change affected trips.