How Old Do You Have to Be to Get a Hotel Room ? In the realm of hotels, the age requirement to book a room varies depending on the policies established by each establishment. Generally, most hotels worldwide require guests to be at least 18 years old to reserve and check into a room independently. This standard age requirement is primarily due to legal reasons and liability concerns as individuals below this age are deemed minors in many jurisdictions. However, it is important to note that some hotels may have a higher minimum age requirement, commonly set at 21 years old in certain countries or regions, such as the United States.