- United and Delta cancel flights just before Christmas EveCNN
- Omicron variant causes Christmas flight cancellations and holiday travel headachesFox Business
- United, Delta Airlines Cancel Nearly 200 Flights Due to Omicron ConcernsCBS Los Angeles
- Christmas Eve Flights Canceled, Times Square Celebration Scaled Back Amid OmicronThe New York Times
- Airlines cancel Christmas Eve flights over omicron impactsFOX31 Denver