This means that you'll be able to search for NAICS codes directly (if that's your jam). We'll do the math; let's make better data on public procurement together.
Passenger Air Charter Service
Possible NAICS Codes
481211 – Nonscheduled Chartered Passenger Air Transportation
481212 – Nonscheduled Chartered Freight Air Transportation
481219 – Other Nonscheduled Air Transportation
481111 – Scheduled Passenger Air Transportation