United Airlines said no passengers needed to be taken to the hospital and that those with minor injuries refused medical attention.
Around 1 p.m. on June 15, United Airlines Flight 627 landed on Runway 22 and slid leftward of the pavement.
Flights were briefly halted at New Jersey's Newark airport on Saturday after a plane skidded off a runway while landing, but no one was hurt, federal officials said. It got stuck in the grassy area off the landing strip.
United spokesman Robert Einhorn said the plane remained on the runway. It later reported operating in "limited capacity" after the National Transportation Safety Board said the plane shouldn't be moved until investigators arrived.
An hour later, the airport said that all passengers aboard that plane had safely gotten off and that the airport was working on resuming flights. It said it was assessing the aircraft for damage.
The aircraft was to be towed off the airfield after passengers left the aircraft via stairs and ride buses to the terminal.
The FAA was en route to begin an investigation, the agency said in a statement via Twitter.