last year. how can people travel safely? what do you do if you want to change your plans? reporter: the rush home for the holidays is kicking into high gear. triple-a predicts more than 100 million people will take to the roads, sky, and other form of transportation over the christmas holiday. that is up more than 30% from last year. we are very excited to have the whole family back together again. reporter: airports bustling with 2 million passengers sunday but will the quickly spreading pt last-minute changes? i am very concerned because the flights are full. the lobby is full. the planes are full. reporter: he says as omicron cases go up, bookings go down. you can see in the numbers that the comfort and level of confidence in traveling is dropping but not as steep as we ve seen in 2020. reporter: the surge of cases scrambling a swath of americans christmas time