It's just an hour and a half's drive from Calais, where you have a choice of ferry operators from the UK. About one hour and twenty minutes is Boulogne, where there's a cheap and fast service into from the UK, or you can sail into Dieppe from Newhaven, and Dieppe is just a half hour drive. If you are flying, the Chateau is an hour and a half from Beauvais airport where Ryanair currently fly into from Dublin and Glasgow. It's about two and a half hours from Charles de Gaulle Airport in Paris.