How to Plan the Perfect Eurail or Interrail Trip Around Europe. Most people gets confused on what type of ticket you should use for this massive adventure trip of a lifetime. Interrail or Eurail are easy to do once you understand and know what you want to do for this journey. Eurail is for non- European citizen and/or non-EU residents. Interrail is for European citizen and/or EU residents with Non- EU passports (Proof of residency required).