With Christmas gatherings over, many are trying to get home. The surge of Covid cases, fueled by the omicron variant, is complicating those travel plans. Airlines have already canceled hundreds of flights amid workers calling in sick.» Subscribe to NBC News: » Watch more NBC video: NBC News Digital is a collection of innovative and powerful news brands that deliver compelling, diverse and engaging news stories. NBC News Digital features NBCNews.com, MSNBC.com, TODAY.com, Nightly News, Meet the […]