FAA identifiers for airports aren’t technically acronyms, but the three-letter codes can give rise to their own headaches. Just ask the Sioux City Gateway Airport, which the FAA saddled with the unfortunate designator “SUX.” Airport authorities petitioned for a new code, and the FAA, not a joke, offered them “GAY” as a nod to the “Gateway” part of the airport’s name.
Sioux City decided that switching to GAY probably wouldn’t save them any taunting, so officials decided to make the best of the SUX situation. Now the airport markets playful t-shirts emblazoned with slogans like “Fly SUX.”
SUX might not even be the worst code. According to a 2008 LA Times story, Fresno’s is FAT, and Perm, Russia’s is PEE. The big winner has to be Fukuoka, Japan, though. Hmmm, how does that one get abbreviated.