Facts on a Plane (Or: Entertain Me on My Way Home From Chicago)

If the Gogo Flight Tracker is accurate, I'm writing this at 31,083 feet. I'm also kinda bored and looking to justify including my in-flight wi-fi purchase on tomorrow's expense report. So while I make my way back home from Chicago, where I've been hanging around with our Midwest advertising team, let's have a contest to see who can come up with the most amazing facts related to air travel.
Three winners will earn mental_floss t-shirts. I'd throw in some honey roasted peanuts but it does not look like they will be provided.