Post Office – Aberystwyth, Bontnewydd – Opening Hours & Branch Details Post Office is located conveniently on Bontnewydd, about a 10.13 mile driving distance south from the centre of Aberystwyth. The branch serves patrons from the districts of Trefenter, Tyncelyn, Bontnewydd, Strata Florida, Discoed, Blaenpenal, Bronnant and Abbeycwmhir. The entire day (Friday) it’s not open. On this page you may find all the information about Post Office Aberystwyth, Bontnewydd, including the working hours, map, customer rating or more relevant info.