This article provides advice on the best time to book a flight to Japan, with January through March and October through December being the cheapest months. It also outlines tips on how to save money on flights such as booking in advance, being flexible with dates, looking for deals and using rewards programs. Popular airlines offering cheap tickets include All Nippon Airways (ANA), AirAsia X, Jetstar Airways, Peach Aviation and Skymark Airlines. Roundtrip economy class tickets can range anywhere from $600-$1500 USD depending on various factors.