Skip navigation links
ATA Airline Handbook
Chapter 1: Brief History of Aviation:
Chapter 2: Airline Deregulation
Chapter 3: Industry and Corporate Structure
Chapter 4: Airline Economics
Chapter 5: How Aircraft Fly
Chapter 6: Safety
Chapter 7: Security
Chapter 8: Airports
Chapter 9: Air Traffic Control
Chapter 10: Energy and Environmental Matters
 

unit cost

The average amount of operating expenses incurred per unit of output, typically measured in cents per available seat mile or available ton mile. Commonly referred to as CASM or CATM.

1301 Pennsylvania Ave., NW, Suite 1100 | Washington, DC 20004 | T: 202.626.4000 | E: ata@airlines.org