KEY POINTS
  • Airlines have canceled more than 10,000 flights over the year-end holidays as the omicron variant of the coronavirus spread among crews.
  • Carriers must refund travelers' money if they cancel a flight and the customer decides not to take an alternative flight.
Travelers make their way through Miami International Airport on December 28, 2021 in Miami, Florida.

Travel in 2021 ended on a stressful note for thousands thanks to omicron. The fast-spreading coronavirus variant has driven up infection rates around the world, including among airline staff.

U.S. airlines have canceled more than 10,000 flights over the year-end holiday period as the variant sidelined pilots and flight attendants and bad weather hit hubs such as Seattle and Atlanta. Thousands more flights were delayed.