American Express Business Travel predcited that U.S. domestic airfares "may decrease" in 2009

. The company cited "forecasted economic conditions for 2009 and the substantial increase in fares already experienced in 2008." The Amex projected change for year-over-year airfares ranges from a 5 percent decrease to a 5 percent increase for domestic economy-class travel, and an increase of 1 percent to 6 percent for international business-class travel.