Fly to Perpignan (30 mins away), Gerona or Carcassonne (1.5 hours away) from Stanstead, or from Ireland fly to either Gerona or Carcassonne (all by Ryanair). Aer Lingus also flies to Barcelona or Toulouse (2.5 hours). Car hire is easily available at each airport, or there is an excellent train and bus service from Perpignan to Collioure. A car is not necessary to enjoy Collioure, but there are many interesting places nearby to visit if you have one!