Ammon News - Approximately 19 aircraft were in the air at the time of the crash near Reagan National Airport and were diverted to Dulles International Airport, about 20 miles west.
There were 858 flights scheduled to take off and land at Reagan National Airport on Wednesday, according to aviation analytics firm Cirium, and 869 flights were scheduled to take off and land Thursday.
Reagan National Airport will be closed until at least 11 a.m. ET Thursday, officials said. CNN