Post Office – Omagh, Sixmilecross – Opening Hours & Branch Details You will find Post Office situated at an ideal location at 28 – 30 Main Street, about 8.17 miles east from the centre of Omagh (not far from Sixmilecross Free Presbyterian Chruch). This branch is situated in a convenient location for customers from Sixmilecross, Aghnaglea, Cloghfin, Liskincon, Ballykeel, Ballyhallaghan, Coolry and Ramackan. If you plan to drop in today (Friday), its hours of operation are 7:00 am until 11:00 pm. On this page you will find all the pertinent information about Post Office Omagh, Sixmilecross, including the business hours, address description and contact number.