Belfast City Airport told passengers not to travel to the airport on Sunday evening due to the runway closure.
Instead it advised them to contact their airline.
The live flight information section of its website is showing that several planes due to arrive on Sunday evening have been cancelled.
Earlier, at least four planes were diverted to Belfast International Airport, including flights from London City and Leeds Bradford.
Belfast International Airport posted on social media just before 18:30 that it was “close to capacity” because of those diversions and its already heavier than usual schedule.
It warned it was “limited in how many redirected flights we can take this evening”.
A further five flights were diverted to Dublin Airport.
