How Is Casm Calculated

Cost per available seat mile (CASM) is a common unit of measurement used to compare the efficiency of various airlines. It is obtained by dividing the operating costs of an airline by available seat miles (ASM). Generally, the lower the CASM, the more profitable and efficient the airline.

How is airline CASM calculated?

CASM is calculated by taking all of an airline’s operating expenses and dividing it by the total number of available seat miles produced.

What is cost per available seat kilometer?

CASK – Cost of Available Seat Kilometer is used to measure the unit cost expressed in cash value to operate each seat for every kilometre. The lower the CASK value would mean that it’s easier to earn revenue. To get the CASK, direct operational cost is divided by the available seat per kilometre.