ATW vs. RTWSearch 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.ATW and RTW are abbreviations for the same thing: Around the World versus Round the World. Travelers use the terms interchangeably. BootsnAll uses RTW ’cause we think it makes us sound cooler. Naa-naa!