In some cultures the number 13 is considered unlucky. You have probably heard that before, right? That is why there is no row 13 in planes, because we respect the superstition. That way nobody who thinks that the number 13 is unlucky has to sit in that row. read more
There are a few reasons why a row number or numbers might be skipped. On a few airlines, row thirteen is indeed skipped to avoid making superstitious people nervous. read more