DALLAS (AP) — Millions of people are expected to hit airports and highways in record numbers over the Thanksgiving holiday.

The busiest days to fly will be Tuesday and Wednesday as well as the Sunday after Thanksgiving.

The Transportation Security Administration expects to screen 2.6 million passengers on Tuesday and 2.7 million passengers on Wednesday.

Sunday will draw the largest crowds with an estimated 2.9 million passengers, which would narrowly eclipse a record set on June 30.

Meanwhile, AAA forecasts that 55.4 million Americans will travel at least 50 miles from home with roads likely to be the most clogged on Wednesday.