[article] LINK Airlines expect to top 25.1 million passengers over the Thanksgiving holiday, a slight increase from 2012. The industry group Airlines for America said the total would eclipse the 24.7 million travelers who took to the skies last year. The 2.1 million passengers per day during the 12-day holiday period will be about 31,000 higher per day, according to the airlines. The busiest days will be the Sunday, Dec. 1, followed by Wednesday, Nov. 27 and Monday, Dec. 2. The lightest days will be Thursday, Nov. 28 and Friday, Nov. 29. Planes throughout the holiday period will be more than 85% full.