For an overweight checked bag weighing 71-100 pounds, Continental Airlines is charging $400 on most international flights, and American Airlines is charging $450 on its Asian flights. United Airlines charges $400 for checking bags weighing 71-99.9 pounds on flights to another continent.

Those are the most expensive fees that airlines charge fliers, a new USA TODAY survey of what 13 U.S. carriers charge for services available to coach passengers has found.