AdvertisementSouthwest cancels 5,400 flights in less than 48 hours in a 'full-blown meltdown'Updated December 27, 2022Ashley AhnfacebookEmailTravelers wait at a Southwest Airlines baggage counter after flight cancellations hit Los Angeles International Airport on Monday. The airline warns it will fly about one-third of its schedule for the next several days. (AP)This article was originally published on December 26, 2022.