Airlines for America (A4A) projects that 42 million passengers will fly between 17 December 2012 and 6 January 2013.
Expected passenger volumes total 300,000 passengers during this three-week period, the trade group says. Aircraft will average about 85% of full capacity during the season.
The busiest days are projected to be 21 through 23 December, 26 December and 2 January 2013, says A4A. During those days, aircraft could reach 90% capacity.
Daily passenger volumes are projected to range between 1.5 million and 2.3 million.