Direct Flights from Chicago to Hawaii: Routes & Airlines

Why do so many searches for direct flights from Chicago to Hawaii end up confusing ORD, MDW, Honolulu, and every Neighbor Island all at once? The answer is simple. Chicago is really two airports, Hawaii is really several destinations, and the phrase “direct” gets used loosely enough that travelers often think they're looking at the same trip when they're not. The cleanest way to think about this market is...