Making the obvious suggestion here, is it possible LA's not the finish at all, and teams are just connecting? There's not that many flights between Seoul and the US, and if they finished in, like, the Midwest or somewhere, then you'd need to make a connection either on the west coast somewhere or in Vancouver. So it's possible the teams seen on the flight could either be decoys, and thus still have time to get elsewhere if they're flying ahead, or they're the actual teams connecting, with one other team connecting through somewhere else or just not seen?