For Stena Line ferry crossings in 2026, the arrival time depends on whether you are traveling as a foot passenger or with a vehicle. Generally, if you are driving a car, you should arrive at the port at least 60 to 90 minutes before the scheduled departure. For busy routes like Holyhead to Dublin or Harwich to Hook of Holland, arriving 90 minutes early is safer to navigate security and boarding queues. Check-in typically closes strictly 30 to 45 minutes before the ship sails; if you arrive after this cut-off, you will likely be denied boarding. Foot passengers usually have a bit more flexibility but should still aim to be at the terminal at least 45 to 60 minutes prior to departure, with check-in closing 30 minutes before sailing. If you are traveling with a pet, a group of 20 or more, or require special assistance, Stena Line recommends adding an extra 30 minutes to these times to allow for the necessary paperwork and boarding arrangements. Always check your specific booking confirmation, as "peak" seasonal sailings may have even earlier requirements.