Eastar Jet’s Early-Bird Special Sale offers one-way fares from ¥1,900 to ¥7,100 on 10 routes from Japan to Seoul/Incheon and Busan, with Kumamoto–Busan the cheapest. Fares include 15 kg of checked baggage but exclude taxes and fuel surcharges. Travel runs December 1, 2026, to January 31, 2027, covering Christmas and the New Year, and booking closes October 20. Eastar Jet Early-Bird Sale: Japan–Korea One-Way Fares from ¥1,900 Korean low-cost carrier Eastar Jet is running an Early-Bird Special Sale on routes between Japan and South Korea. The sale runs from 10:00 a.m. on Wednesday, October 14, 2026, through Tuesday, October 20. As of this article’s publication on October 19, the sale is about to close. The sale covers 10 routes from cities across Japan to Seoul/Incheon and Busan. Lowest one-way fares range from ¥1,900 to ¥7,100. The travel period runs from December 1, 2026, to January 31, 2027, and