|Denied boardingb (thousands)|
a Data are for nonstop scheduled service flights between points within the United States (including territories) by
the 10 largest U.S. air carriers, i.e., those with at least 1% of total domestic scheduled-service passenger revenues (Alaska, America West, American, Continental, Delta, Northwest, Southwest, TWA, United, and US Airways). Before 1994, carriers included both majors and national airlines, i.e., airlines with over $100 million in revenue.
b Number of passengers who hold confirmed reservations and are denied boarding ("bumped") from a flight because it is oversold. These figures include only passengers whose oversold flight departs without them; they do not include passengers affected by canceled, delayed, or diverted flights.
SOURCE: U.S. Department of Transportation, Office of the Secretary, Air Travel Consumer Report (Washington, DC: Annual April issues).