 222 now at WTOP. Well, if you're flying today or have plans to later this evening, chances are you'll see long security lines and packed terminals as folks come back home. Three million flyers from across the country are expected to board a plane. That's according to the TSA, and it would break a single-day record that was set in June. American Airlines has 6,500 flights planned to end the weekend, their busiest day of the summer.