Your seat will be automatically assigned when you complete your reservation. You may change your assigned seat and choose a different seat at any time after your booking is complete by viewing your reservation in the Amtrak app or on Amtrak.com. There is no fee to change your seat.

Yes, you can choose your seat on many trains in 2026, but the "High-Fidelity" process varies by operator and service class. On Amtrak, seat selection is available for Acela and Business Class passengers on routes like the Northeast Regional; you can use an interactive seat map in the Amtrak app to pick your preferred spot for free. On European high-speed lines like Eurostar, TGV, or Renfe, seat selection is often a "High-Fidelity" requirement and is included when you book a specific ticket. However, if you are traveling with a Eurail Pass, you must often pay an additional "Seat Reservation Fee" to guarantee a specific spot on high-speed or night trains. For standard regional or "commuter" trains, seat selection is generally not possible, and passengers simply sit in any available unreserved seat. In 2026, using the operator's official mobile app is the most high-fidelity way to view current seat availability and even change your seat while the train is already in motion.