This has nothing to do with food and probably won't interest most people. But for a mileage whore like me, this article was such a revelation that it was like finally reaching the end of an M. Night Shyamalan movie. Wow. Now I understand that there is a method to the madness behind weird airport codes like IAD, EWR, and YYZ. Now someone just needs to explain to me the rationale behind airline codes like JJ, 9W, and WN.