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.

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.

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 says Newark needs more air traffic controllers. The airline says the most important thing that could be done to better the flying experience is to fully staff the FAA.

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

Hundreds of flights into Newark Liberty International Airport on Monday dealt with delays as a result of continued staffing issues. A day after air traffic staffing issues delayed and canceled some flights into Newark,

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.