Delta joins other airlines in reducing late-summer flights to NYC.

Delta Air Lines will cut just over 6% of its flights to and from New York City-area airports in August, following American Airlines and United Airlines in trimming their summer schedules in response to a shortage of air traffic controllers in New York. The biggest cuts were to flights between Delta's two primary New York hubs, LaGuardia Airport (LGA) and John F. Kennedy International Airport (JFK), and Boston Logan International Airport (BOS) and Ronald Reagan Washington National Airport (DCA). The FAA said last month that airlines could choose to temporarily return up to 10% of their slots between May 15 and Sept. 15.