You know that sitting next to the airplane bathroom is no fun. But did you know that booking two one-way tickets instead of a round-trip flight can save you money? Or that if your economy class ticket has a Y or B booking code, you might be in line for an upgrade (hey, it never hurts to ask)? With air travel on the upswing, the travel-savvy folks over at Business Insider recently put together a helpful infographic detailing 27 little-known travel hacks that might surprise even the most experienced jetsetters.

[h/t: Business Insider]