Do you want to contact the United Airlines office in Chicago? United Airlines Chicago Office is the main hub of this organisation. This office is responsible for providing various types of assistance such as resolving issues regarding flight Ticket Booking, unaccompanied Minor Services, Missing Luggage, Trip Insurance, Concierge Services, Seat Selection, and Enquiries, Delayed Flights, Airport Facilities, Immigration Services, and so forth. You can get assistance from the professionals to resolve your query.