Check the available seats a few hours before your flight.
Most airlines let you switch seats in your same booking class for free on the app. If you can’t switch but see openings when you board, ask a flight attendant if you can move to an open row. Pull up the arm rest between the seats and stretch out (when the seatbelt sign is off, of course) with all your newfound space. This comes in clutch when you expect to sleep at least a few hours.
Ideally, you’ll find a fully empty row, but there are contingency plans on a full flight. For more leg room, aim to sit in the emergency row. You might have a preference for an aisle or window seat, but for ease of going to the bathroom or stretching out on a long flight, the aisle is usually best.























