Originally Posted by PLTHOO
Some are just creative---such as Key West (EYW). If the airport or station is a weather reporting station a K is added to the front (KIAD, KORD, etc.) therefore Key West now becomes KEYW.
Ummm, no, there are no airport codes in the U.S. that begin with K (except in Alaska). The folks at Key West may have gotten creative but only because they couldn't begin the three letter code with a K in the first place. See the article in the OP.
For more on the whole subject, see
this thread