Probably one for another thread, but there are quite a few well documented cases of planes turning up at the wrong airport too, so mere mortal SLF aren't the only ones prone to mistakes.
My parents live on Nevis, West Indies, where there is a small village called Newcastle, adjacent to the airport, which for all other purposes is just known as Nevis, or 'Vance Amory', after the island's first premier.
Every year there are always one or two people who end up there, expecting to be either in Newcastle, Oz, or of course NCL. You wonder how they can get so far out - but as in the example quoted at the start of the thread, not everyne has the same understanding of geography, and sometimes the options / tick boxes get ingnored.
You'd think the IATA coding system would remove all doubt, but that is only if the person making the booking knows which code to check against.
Otherwise, someone expecting to go to LOS Angeles or LAS Palmas or GOA might be in for a bit of a surprise.