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

After a collision of a passenger jet and an Army helicopter Wednesday night, a few flights from Des Moines to Washington, D.C., have been canceled.

At Logan Airport in Boston, every flight to and from Reagan National Airport was cancelled Thursday morning after a deadly collision in Washington.

No fatalities or injuries were reported on American Airlines Flight 2297 from Palm Beach International Airport to Reagan ...