Thousands of flights are being delayed, with some delays of up to two hours, according to Federal Aviation Administration data.
Thunderstorms and clouds in the New York area have caused air traffic controllers to halt flights departing to New York’s LaGuardia Airport, according to the FAA. Delays at John F. Kennedy International Airport lasted more than an hour and a half and were approaching that mark Thursday afternoon at nearby Newark Liberty International Airport.
The storms also affected air travel in Florida, according to the FAA. Delays ranged from 15 to 45 minutes in Orlando, Miami and Tampa on Thursday afternoon.
As of Wednesday, more than 5,700 flights within, to or from the United States were delayed, according to FlightAware.
Flight delays also hit travelers over the weekend during the busy spring break season.
More than half of Saturday flights on Southwest Airlines have been canceled or delayed due to “intermittent technology glitch, as well as ongoing weather issues,” according to a Saturday night tweet from the airline.
According to FlightAware, 35% of Spirit Airlines flights, along with 33% of JetBlue flights and 10% of Southwest flights were canceled on Sunday.