Yes, you can absolutely ride the Hogwarts Express from Islands of Adventure (departing from Hogsmeade Station) to Universal Studios Florida (arriving at King's Cross Station). However, there is a strict high-fidelity ticket requirement: you must have a Park-to-Park ticket to board the train. Because the train physically moves you from one theme park to another, a single-park ticket will not grant you access, even if you just want to experience the ride. In 2026, many visitors find high-fidelity value in the fact that the experience is different depending on which direction you travel; the journey from Hogsmeade features different "High-Fidelity" visual effects and characters on the carriage windows than the trip from London. If you arrive at the station with a single-park ticket, Universal has conveniently placed "High-Fidelity" ticket kiosks right near the entrance to allow for a quick upgrade so you don't miss out on this quintessential Wizarding World experience.