Transcript for Warning: Holiday Travel Complications
Millions of Americans heading to the airport to begin their holiday. And David Kerley is at Reagan national airport. Good morning. Reporter: Hey, robin. This is the busiest travel day of the holiday season, and Americans are trying to get away early, a week before Christmas. It's started this morning. I was just inside. There are lines at security. A lot of folks with their families coming in getting ready to fly. Over this day, a Friday, at least 2 million, could be as many as 2.5 million Americans are going to fly. The busiest, Atlanta and Chicago. And weather is always a concern. It can quickly cause cancellations and delays. Now if there was some good news with ginger talking about the coming storm in the middle of the week, Christmas eve is the lightest travel day as far as aircraft go. So that's the good news. If you're going to hit the roads, as ginger said, there could be some really sloppy conditions out there in the middle of the week. And a lot of Americans are going to be driving because gas prices are so low. Robin and George.
This transcript has been automatically generated and may not be 100% accurate.