Also the SJC reference in the OP is weird. San Jose has a larger population than San Francisco. Oakland is smaller, but still one of the largest cities in America.
Everett has 1/7 the population of Seattle.

if you forget what airport you booked at and can't be bothered to look at the three letter code, you risk the error that dozens of people make every day at LGA/JFK, DCA/IAD, LIN/MXP, LHR/LGW, HND/NRT... At some point, the passenger needs to take responsibility.
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