Industry Sector

Transportation & Public Utilities

Total Companies


Est. Employment



Establishments primarily engaged in furnishing air transportation over regular routes and on regular schedules. This industry includes Alaskan carriers operating over regular or irregular routes.


SIC Code 4512 - Air Transportation, Scheduled is a final level code of the “Transportation & Public Utilities” Division. There are 5,516 companies classified in this industry in the USA with an estimated employment of 103,670 people.

Industry Examples

Common types of examples within SIC Code 4512 - Air Transportation, Scheduled are:

  • Air cargo carriers, scheduled
  • Air passenger carriers, scheduled

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Extended SIC Code Categories for SIC 4512

For business marketing and targeting, SIC Codes have been extended to provide more specific classifications within SIC Code 4512 – Air Transportation, Scheduled. Extended SIC Codes are being continuously updated to reflect the current business environment.

6-digit SIC

  • 451201 Airline Companies
  • 451202 Air Cargo Service
  • 451298 Air Transportation-Scheduled

7-digit SIC

  • 4512001 Air Transportation-Scheduled
  • 4512002 Scheduled Air Passenger Carrier
  • 4512003 Air Cargo Services
  • 4512004 Scheduled Helicopter Carrier
  • 4512005 Airline Companies

8-digit SIC

  • 45120000 Air Transportation, Scheduled
  • 45129901 Air Cargo Carrier, Scheduled
  • 45129902 Air Passenger Carrier, Scheduled
  • 45129903 Helicopter Carrier, Scheduled