Even as the number of coronavirus cases is skyrocketing in some parts of the United States, largely driven by the Omicron variant, the holiday travel rush appears unstoppable. On Friday, Los Angeles International Airport reported its busiest day since early 2020, and on Sunday, 2.1 million people passed through airports in the United States, nearly twice as many as at this time last year.

For people who are determined to keep their travel plans, figuring out how to do so responsibly remains confusing. So what can travelers do?