Tens of thousands of travellers’ holiday plans in US disrupted by Omicron

Travellers at Orlando International Airport (Stephen M Dowell/Orlando Sentinel via AP)

Tens of thousands of travellers in the US were having their holiday plans upended by the Omicron coronavirus variant.

Airlines cancelled hundreds more flights on Sunday, citing staffing problems tied to Covid-19, as the nation’s travel woes extended beyond Christmas, with no clear indication when normal schedules would resume.