There are 2 ways to go about getting the air tickets you need for your round the world trip:
Buy ‘em all before you leave »
Buy ‘em as you travel »
Pretty simple, no? Build your itinerary (or at least decide where you want to fly to first), and take advantage of newsletters and other info to help you get good deals and better understand your tickets.
Our sister site, Round the World Tickets, has completed a secret shopper’s research project where they priced 3 different itineraries from eight different companies selling RTW plane tickets. Be sure to check out the reviews of the companies selling RTW plane tickets to help you decide what option is best for your trip.