Ever wonder why Chicago airport call letter is ORD or for that matter Columbus, Ohio airport call letter is CMH? I thought ORD stands for O'Hare Regional District.. But that is not the case.. Of course, I could never figure out what CMH stood for until now..
I looked around to understand why Chennai airport identification code is MAA, but couldn't find any.. Do you know?
Airport Identification Codes (over 9500 of them..)