The airspace around Washington, D.C., is congested and complex — a combination aviation experts have long worried could lead ...

The Bombardier CRJ700 regional jet and Black Hawk helicopter both crashed into the icy Potomac River after colliding midair.

Last year, senators from Virginia and Maryland sounded the alarm over congestion in the skies above Washington.

Following the deadly midair collision in Washington, D.C., Chicago officials are raising concerns about safety at local ...