Extra Pair of Socks on PlaneSearch for around the world ticketFAQ: How do I use this trip planner?Start by typing your departure city in the box above. Suggestions will appear as you type.Drag and drop destinations to change the order of your trip.Your return city can be the same as your starting city, or you can change it.After adding your cities, click Next to continue planning your trip.When flying, always make sure to have an extra pair of socks in your bag if you’re wearing sandals or nylons. Airplanes can get pretty chilly and protecting your feet can help ward off the chill.