Published Wednesday, 11 June 2014
The airline is to suspend the service. (© Getty)
It is understood next year's service freeze to Newark Airport is a temporary measure being implemented as part of the airline's cutbacks.
It will also halt services at Dublin, Manchester and Rome.
Belfast International Airport has said it is "naturally disappointed" by the decision.
The airport has said 850,000 passengers have travelled via the route in the nine years since it was introduced.
"We have been kept fully informed by United who assure us that it is their intention to resume normal service on the Belfast-Newark route from the 11 March next year," a statement from the airport said.
"Taken in the round, this is a successful route for United but performance is not traditionally as strong in the first couple of months of the year.
"United has contributed massively to the Northern Ireland economy over the past decade and we know it will continue to provide a vital link for business, and support continuing efforts to attract inward investment, for the remainder of 2014 and over the New Year period, and again when the service returns in March 2015."
© UTV News