Certainly! If you've already booked your train ticket, upgrading your seat or service class is usually possible. Simply contact the train operator or check their website for upgrade options. Upgrades often depend on availability, so it's best to check early. Whether you're looking for more comfort or extra amenities, upgrading can enhance your travel experience. Keep in mind, that fee... https://reservationsus.com/when-should-i-check-in-for-amtrak/