Traveling in first class cabins in Japan provides the most comfortable and luxurious travel experience. Moreover, these cabins offer Li-Fi seats with private suites, excellent ground services, premium lounge access, priority check-in, etc. To book a cheap first class to Japan, travelers can go to the airline's official website, which offers its first class cabin to Japan, and reserve seats a few months before and use their miles. To find the modes and steps to book a cheap first class flight to Japan from the mentioned blog link by the Fares First Class.