- Airlines cancel flights due to COVID staffing shortagesAssociated Press
- Omicron surge leads to hundreds of canceled flights on Christmas EveCNN
- Omicron variant causes Christmas flight cancellations and holiday travel headachesFox Business
- Nations Shorten Recommended Quarantine Times for Covid-19 PatientsThe Wall Street Journal
- December 24, 2021: United, Delta cancel flights, Omicron, Kim Potter, Georgia poll staff, TiananmenReuters