On Thanksgiving and Christmas, millions of people want to be in the same place on the same few days, and airlines price accordingly. TSA has recorded more than three million passengers in a single day around the Thanksgiving weekend in recent years, and planes are as full as they get all year.
The flip side is that the pattern is predictable, which means you can plan around it. A few days' difference in when you fly can change the fare by hundreds of dollars, and knowing which days are cheapest is half the battle. For detailed date advice, see our guides to Thanksgiving 2026 flights and Christmas and New Year 2026 flights.
