5 years of TSA data say New Year's Day is the quietest day of the whole holiday window.
Quieter than New Year's Eve, and far quieter than the days before Christmas.
2.10 million average travelers on Jan 1, versus 2.12 million on Dec 31.
14% busier than New Year's Day. The whole return weekend stays crowded.
Day by day odds from Dec 26 to Jan 5. Read the full guide.