United Airlines uses a system of boarding groups based on several aspects, such as your class of service and loyalty status. Passengers in premium classes like First or Business Class will board first, followed by those with higher frequent flyer status. United Airlines Boarding Groups are designed to ensure smooth and organized boarding, with Economy passengers assigned to later groups. If you're in Economy, you’ll typically board in one of the last groups, depending on your seat location and ticket type. To avoid confusion, always check your boarding pass for your assigned group and pay attention to gate announcements.