Flight disruptions swell as storms hit US airports

Bloomberg

Airlines cancelled more than 1,260 US flights as thunderstorms stretched from the Ohio Valley to the mid-Atlantic, with threats of flash flooding in some areas by evening. About 5,390 flights were delayed.
The New York and Washington areas were among the most affected by the service disruptions. The Federal Aviation Administration (FAA) blocked departing flights headed for New York’s LaGuardia, Newark Liberty International, Ronald Reagan Washington National and Dulles International airports, and warned about delays extending to as long as 103 minutes.
Departure delays of at least 45 minutes also were reported at Boston Logan, Baltimore/ Washington International and Philadelphia International, according to the FAA. National Weather Service forecasts showed conditions weren’t expected to improve much through the weekend, with rain, some thunderstorms
and potential flash flooding
About 23% of flights were cancelled at LaGuardia on August 5, followed by 22% at Reagan and 17% at Newark, according to FlightAware.com. American Airlines Group Inc cancelled 232 flights, or about 7% of its schedule on the same day, FlightAware data showed. JetBlue Airways Corp grounded 5%, while Southwest Airlines Co and Delta Air Lines Inc cancelled 3% each and United Airlines Holdings Inc was at 2%.