Cost Per Available Seat Mile


Cost Per Available Seat Mile (CASM) is a unit of measurement used in the aviation industry to calculate the cost incurred by an airline to fly one seat per mile. It is calculated by dividing the total operating cost of an airline by the total number of available seat miles. CASM is an important metric for airlines as it helps them to determine their operational efficiency and profitability. Airlines with lower CASM are generally more efficient and profitable than those with higher CASM. Factors that can affect CASM include fuel prices, labor costs, aircraft maintenance, and other operational expenses.


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