Cost Per Available Seat Mile - CASM


DEFINITION of 'Cost Per Available Seat Mile - CASM'

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.

BREAKING DOWN 'Cost Per Available Seat Mile - CASM'

CASM is usually a more comprehensive measurement of airline costs, but it's still important that investors are aware of what items comprise this measurement. Many carriers exclude fuel costs from operating expenses, making the CASM an unreliable metric. Cost per available seat mile, as the name suggests, reflects the costs incurred by an airline to fly a single seat one mile.

  1. Robert Crandall

    A former president, CEO and chairman of AMR Corporation, the ...
  2. Revenue Passenger Mile - RPM

    A transportation industry metric that shows the number of miles ...
  3. Economics

    A social science that studies how individuals, governments, firms ...
  4. Econometrics

    The application of statistical and mathematical theories to economics ...
  5. Soft Metrics

    A slang term for intangible indicators used to value a startup ...
  6. Dow Jones Transportation Average ...

    A price-weighted average of 20 transportation stocks traded in ...
Related Articles
  1. Economics

    Investing Opportunities as Central Banks Diverge

    After the Paris attacks investors are focusing on central bank policy and its potential for divergence: tightened by the Fed while the ECB pursues easing.
  2. Stock Analysis

    The Biggest Risks of Investing in Pfizer Stock

    Learn the biggest potential risks that may affect the price of Pfizer's stock, complete with a fundamental analysis and review of other external factors.
  3. Investing

    10 Cheap Vacations for the Ultimate Foodie

    If you are a foodie then explore one of these destinations in 2016.
  4. Markets

    PEG Ratio Nails Down Value Stocks

    Learn how this simple calculation can help you determine a stock's earnings potential.
  5. Fundamental Analysis

    Using Decision Trees In Finance

    A decision tree provides a comprehensive framework to review the alternative scenarios and consequences a decision may lead to.
  6. Economics

    Understanding Tragedy of the Commons

    The tragedy of the commons describes an economic problem in which individuals try to reap the greatest benefits from a given resource.
  7. Personal Finance

    5 Airlines That Offer Refundable Plane Tickets

    Compare prices for non-refundable and refundable airline fares for five of the United States' most popular airlines, and learn about varying cancellation fees.
  8. Investing

    What’s the Difference Between Duration & Maturity?

    We look at the meaning of two terms that often get confused, duration and maturity, to set the record straight.
  9. Stock Analysis

    Does TripAdvisor Offer Upside Potential? (TRIP)

    Will TripAdvisor's downside risk outweigh upside potential in 2016? It's most recent SEC filing offers some strong clues.
  10. Savings

    Avoid the Worst Air/Rail Travel Fee Rip-Offs

    Airline fees can vary tremendously. We've compared them side-by-side – along with Amtrak's new charges – to determine who charges the most (and least).
  1. What does low working capital say about a company's financial prospects?

    When a company has low working capital, it can mean one of two things. In most cases, low working capital means the business ... Read Full Answer >>
  2. Do nonprofit organizations have working capital?

    Nonprofit organizations continuously face debate over how much money they bring in that is kept in reserve. These financial ... Read Full Answer >>
  3. Can a company's working capital turnover ratio be negative?

    A company's working capital turnover ratio can be negative when a company's current liabilities exceed its current assets. ... Read Full Answer >>
  4. Does working capital measure liquidity?

    Working capital is a commonly used metric, not only for a company’s liquidity but also for its operational efficiency and ... Read Full Answer >>
  5. How do I read and analyze an income statement?

    The income statement, also known as the profit and loss (P&L) statement, is the financial statement that depicts the ... Read Full Answer >>
  6. Can working capital be too high?

    A company's working capital ratio can be too high in the sense that an excessively high ratio is generally considered an ... Read Full Answer >>

You May Also Like

Hot Definitions
  1. Barefoot Pilgrim

    A slang term for an unsophisticated investor who loses all of his or her wealth by trading equities in the stock market. ...
  2. Quick Ratio

    The quick ratio is an indicator of a company’s short-term liquidity. The quick ratio measures a company’s ability to meet ...
  3. Black Tuesday

    October 29, 1929, when the DJIA fell 12% - one of the largest one-day drops in stock market history. More than 16 million ...
  4. Black Monday

    October 19, 1987, when the Dow Jones Industrial Average (DJIA) lost almost 22% in a single day. That event marked the beginning ...
  5. Monetary Policy

    Monetary policy is the actions of a central bank, currency board or other regulatory committee that determine the size and ...
  6. Indemnity

    Indemnity is compensation for damages or loss. Indemnity in the legal sense may also refer to an exemption from liability ...
Trading Center