nbc's emilie ikeda explains how to travel safely and what to do if you do want to change your plans. >> reporter: the rush home for the holidays kicking into high gear. aaa predicts more than 100 million people to take to the roads, sky, and other forms 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 some 2 million passengers saturday. rivaling pre-pandemic numbers. but will the quickly-spreading new variant prompt last-minute changes? >> i'm very concerned about it because the flights are full. inside the lobby is full. all the planes are full. >> reporter: as omicron cases go up, bookings go down. >> you can see, however, in the numbers that the -- the comfort and the level of confidence in -- in traveling is dropping. um, but not as steep as we have seen in 2020. >> reporter: the surging cases scrambling a swath of americans' christmas time tradition, including dan cisco. >> found out that someone in my extended family tested positive for
