If you are traveling with someone else, a good tip is to book one window and one aisle seat in the same row, Freedman says. This increases the chances that no one will purchase the middle seat and you'll have more room when you fly. "People are less likely to choose a middle seat when they travel by themselves," Freedman says. If someone does purchase the seat, you can be the hero that offers them one of your window or aisle seats, Freedman says.