All coverage
U.S. airline industry steps up push for CDC to cut quarantine time for breakthrough Covid cases, warning of labor shortages
By Leslie Josephs
United, Delta cancel hundreds of U.S. Christmas Eve flights amid COVID surge
By David Shepardson
Airlines cancel holiday flights due to Omicron surge, storms
By Rebecca Falconer
Airlines cancel hundreds of holiday flights due to omicron impacts on crews
By Sam Sweeney, Mina Kaji & Amanda Maile
To grandmother's house or no? Omicron disrupts holiday plans
By Tali Arbel & Laura Ungar