Costco – Sunbury-on-Thames – Opening Hours & Store Details Costco is easily accessible on Hanworth Rd, a 0.36 mile driving distance north-east of the centre of Sunbury-on-Thames (by Kempton Park Station). This store is perfectly situated for people from Charlton, Upper Halliford, The Nurserylands, Feltham, Sunbury-on-Thames Town Centre, Hanworth, London and Kempton Park. On this page you can find all the up-to-date information about Costco Sunbury-on-Thames, including the working times, address info, direct contact number, and further details.