In the United States, the tradition seemed to spring back this year. Hardly two million people passed through security checkpoints each day last week, according to the data shared by Transportation Security Administration. The new variant Omicron is spreading rapidly, causing the cancellation of over 1000 flights in the United States.

Flights Are Canceled Aware, which provides reliable aviation data, released this data the last Sunday. On Sunday evening, more than 1,300 flights with at least one stop in the United States and two times around the globe are canceled due to the fret of COVID spread.