Glossary of Airline Terminology

Frequently Requested

  • Break-even Load Factor The load factor at which a flight or collection of flights, earns revenue equating to its expenses; i.e., at which operating or pretax profit equals zero. See load factor.
  • Passenger The total number of revenue passengers boarding aircraft in scheduled service.
  • Airport and Airway Trust Fund (AATF, Trust Fund) Created by the Airport and Airway Revenue Act of 1970, the AATF provides funding for improvements to the nation’s airports and air traffic control system. Money in the fund comes solely from users of the system, principally from collections related to passenger tickets, passenger flight segments, international arrivals/departures, cargo waybills, aviation fuels and frequent-flyer mileage…
  • Hypersonic Flight Flight conducted at speeds greater than Mach 5 or five times the speed of sound.
  • Passenger Facility Charge (PFC) A tax authorized by Congress, approved by FAA, assessed by airports and collected by airlines (on behalf of airports) as an add-on to the passenger airfare. PFCs are used by airports to fund FAA-approved projects that enhance safety, security or capacity; reduce noise; or increase air-carrier competition. The PFC program authorizes the collection of fees…

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