If you're flying with United Airlines and would like to know What Terminal is United at MCO, you'll need to check. United Airlines operates out of Terminal B at Orlando International Airport. Among the many facilities at this well-equipped airport are United's check-in offices, baggage claim, and security checks. The amenities offered to passengers include a range of food options, sho... https://www.airlinesairportsterminal.com/united-airlines/united-airlines-orlando-international-airport-mco-terminal/