Five airports in the New York area began normal operations on Friday after thousands of flights were grounded due to Hurricane Sandy.
The Port Authority of New York and New Jersey revealed that full operations had started at Teterboro Airport, with two of its runways operating normally.
According to flight tracking service FlightAware, 571 flights have been cancelled so far on Friday 2 November.
FlightAware added that JFK and Newark Liberty (EWR) are operating a busy but limited schedule, while LaGuardia Airport (LGA) has re-opened for arrivals/departures.
FlightAware estimates that about 19,729 flights have been cancelled since Hurricane Sandy hit airport operations.
According to another flight-tracking service, FlightStats, airlines have cancelled 20,028 flights, 873 were cancelled on 1st November, mostly at the New York-area airports and 36 are expected to be cancelled tomorrow because of Sandy.
After resumption of airport operations, major US airlines also started service in the New York area on Thursday, including American Airlines, Delta Air Lines and Southwest Airlines.
LaGuardia Airport, which has two runways leading to the bays located just a few feet above sea level, was flooded during Sandy.
According to US Federal Aviation Administration (FAA), three of the four instrument-landing systems used at the airport to help pilots during low visibility have been damaged.
The agency said: "FAA technicians from New England are assisting technicians in New York to help restore all damaged equipment as quickly as possible."
Airports in the Washington and Philadelphia areas started operations on Tuesday.
Photo: The two LaGuardia Airport runways located just a few feet above sea level were flooded during Sandy.