Washington National Airport will shut down most air operations on 4 July, starting at noon local time, to clear airspace for military flyovers tied to the United States’ 250th anniversary celebrations. The Metropolitan Washington Airports Authority also set a rehearsal closure on 3 July, with service expected to resume in the early hours of 5 July.
The move will force hundreds of cancellations across the capital region at peak holiday demand. United Airlines says it has already adjusted schedules and does not expect a customer impact. More airborne displays are still scheduled through the summer, keeping DCA capacity constrained into August.