A seat reservation on the Eurostar simply means you’re securing a specific seat on a specific train before you travel. Since Eurostar uses high-speed, long-distance services with limited seating, everyone needs an assigned spot, especially when you’re travelling with a Eurail or Interrail Pass. The pass alone isn’t enough to guarantee you a seat on board; you’ll also have to pay a small extra fee to reserve your seat.
A seat reservation guarantees European rail pass holders a definitive seat on a Eurostar train on a given day and time of departure. Without a seat reservation, you can’t be sure to have a seat on the Eurostar.
You can reserve seats for the Eurostar about 4 to 6 weeks before your planned journey. Reserve earlier if you’re planning to travel around the holidays.
A seat reservation for a Eurostar train running between London and Paris can cost between €35 and €40.
Yes, you should carry both your seat reservation confirmation and rail pass on the Eurostar. You may be asked to produce either or both at security and border checks.
If you cannot find available seat reservations for your travel date, you will have to switch to another date or forgo the reservation by paying the full ticket fare for the same date.
Reservations are usually non-refundable and non-exchangeable. So until your plans are set in stone, don’t rush to reserve your seats on the Eurostar.