Domestic Aviation: Effects of Changes in How Airline Tickets Are Sold

Pursuant to a congressional request, GAO provided information on: (1) how changes in the way airlines sell tickets affected travel agencies and consumers; (2) airlines' policies and practices for the sale and use of airline tickets sold by travel agencies compared with the sale and use of tickets sold directly by airlines; (3) what airlines' policies and practices are for making their airfares, particularly discount fares, accessible to travel agencies and consumers; and (4) what airlines' policies and practices are regarding the use of data on travel agency sales.