On what is expected to be the busiest air travel day of the Thanksgiving holiday period this year, the Federal Aviation Administration is warning it may need to implement a ground stop or ground delay program at Newark Liberty International Airport.

The Federal Aviation Administration has issued a ground delay at Newark Liberty International Airport before Thanksgiving over staffing issues.

Hundreds of delays at Newark Liberty International Airport on Saturday resulted from air traffic control staffing problems.

The FAA is slowing air traffic into Newark Airport as a result of staffing shortages the day before the peak Thanksgiving travel begins, according to the FAA website. The ground delay program at Newark is in effect until 1 a.

United Airlines said a shortage of air traffic controllers is impacting its business and people's travel plans in what is expected to be a record-shattering Thanksgiving travel week.

You’ve done everything by the book — got to the airport hours before departure, followed TSA guidelines about what can’t be put in carry bags, even remembered to wear slip-on shoes to make the getaway to the gate faster.