Also remember, that's on an airline with one of the lowest ratings when it comes to customer experience and customer service. Those $188 r/t fares on US between CLT and NYC would not be available if it weren't for jetBlue. Up until recently, US "screwed" their customers with high airfares and crappy service. Today, they "screw" their customers with just crappy service. I'd also be willing to bet that those cheaper fares are much more likmited on US and their last-minute walk-up fares is much, much greater than jetBlue's.