The Air Transport Association (ATA) announced today that it expects more than 21 million passengers to travel globally on U.S. airlines over the 2006 Memorial Day holiday.

The nation’s airlines are expecting to transport 2.1 million passengers per day between Monday, May 22 and Wednesday, May 31. Systemwide, passenger volumes during this period are projected to rise 1.9 percent from a year ago, principally due to 9 percent growth in international air travel.