In the UK, there is no specific law that prevents a 17-year-old from staying in a hotel alone; however, it is entirely down to the individual hotel’s policy. Because 17-year-olds are legally considered minors, they cannot enter into a legally binding contract (which a hotel booking is). Consequently, most major UK chains like Premier Inn and Travelodge strictly require at least one guest in the room to be 18 or older. Some independent hotels or youth hostels may allow 16 or 17-year-olds to stay if a parent or guardian makes the booking in advance and provides a written "letter of consent" and a copy of their ID. If you are 17 and planning to travel alone in 2026, the most important step is to call the hotel before booking. Showing up at the front desk without checking the policy beforehand often results in being refused check-in, even if the room has already been paid for online.