| You should also accept "ONT" for Ontario...or all airport codes, actually. Also, although it is 2006 data, according to Wikipedia (http://en.wikipedia.org/wiki/List_of_airports_in_the_United_States_by_passengers_boarded), Burbank, Ontario, Dallas-Love, Houston-Hobby, and John Wayne all fall below the 5 million passenger threshold. Source, please? |