United Airlines

United Airlines is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Airline Services
• Airline Ticket Agencies

North American Industry Classification System (NAICS) Categories:

• Scheduled Passenger Air Transportation > Airline Companies
• Scheduled Freight Air Transportation
• All Other Travel Arrangement And Reservation Services

Standard Industry Classification (SIC) Categories:

• Air Transportation, Scheduled > Airline Companies
• Arrangement Of Passenger Transportation, Nec > Passenger Transportation Ticket Offices & Agencies > Airline Ticket Agencies