Why is there an ‘X’ in LAX?

The smart folks at Mental Floss recently told us something we didn’t know about airport codes…

From the @mental_floss Twitter feed:

“When three-letter airport codes became standard, airports that had been using two letters simply added an X — which explains LAX.”


And while we’re on the subject of airport codes, how much of an expert are you? Take the Mental Floss Airport Code quiz!


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