The US lifted the nationwide ban on flights from airports. Airplanes throughout the country were grounded for four hours.

The US lifted the nationwide ban on flights from airports. Airplanes throughout the country were grounded for four hours.

The US Federal Aviation Administration (FAA) has lifted the nationwide flight ban from all airports in the country.

Thus, the ban lasted about four hours and caused the cancellation of more than six thousand flights to and from the United States. The state of emergency affected at least one and a half million passengers - an estimate that includes only those whose flights were canceled and not delayed.