I've been told that airliners like to hang around at airports; DCA
being an airport, it sounds logical...
Actually, friendlyskies is correct, I just couldn't resist. Friday humor. Typically DCA
is not an LCC fiendly airport, but TED is still UA
, and it is possible to see TED there in order to compete with Airtran, ATA, and Spirit. I think USair MetroJet had fair luck there back in the day, but I cant recall if that was DCA