P&O Ferries have released the following statement;

Please note that roadworks will take place on the Belfast bound carriageway of the A8 flyover in Larne over the following weekends: 

• Friday 20th September 2019 at 19:00 to Sunday 22nd September 2019 at 20:00 
• Saturday 28th September 2019 at 06:00 to Saturday 28th 2019 at 20:00 
• Sunday 6th October 2019 at 06:00 to Sunday 6th October at 20:00 

A diversionary route is in place along A8 Ballymena Road - The Ramp - Circular Road Roundabout - Glenarm Road - Victoria Road - Old Glenarm Road - Greenland Road - The Roddens - Antiville Road - Antiville Road Roundabout - A8 Ballymena Road.

This will only affect traffic arriving from Cairnryan - traffic departing Larne will not be affected.