Jeju Air’s Imayasu Sale offers February 2027 flights between Japan and Korea from ¥14,050 one-way on the BASIC fare, with fuel surcharges and airport fees already included. All 14 routes, 11 to Seoul and 3 to Busan, come in under ¥20,000, and several depart from regional airports such as Shizuoka, Matsuyama and Hiroshima. Bookings close on October 27, 2026. Jeju Air Imayasu Sale Overview Jeju Air, the South Korean low-cost carrier, is running its Imayasu Sale on Japan–Korea routes from October 21 to October 27, 2026. The sale covers travel for one month, from February 1 to February 28, 2027. The lowest one-way total for the BASIC fare, which does not include checked baggage, starts at ¥14,050 on the Seoul–Shizuoka route. All fares are quoted as totals that already include the fuel surcharge, airport fees and similar charges. You can see roughly what you will pay as soon…

Jetstar Japan’s Super Star Sale runs from noon on October 23 to 4:59 pm on October 26, 2026, covering 16 domestic and 5 Asian routes. Economy Starter fares start at ¥3,690 one way on Narita–Kansai and ¥8,690 on Kansai–Taipei, with no fuel surcharge. Travel runs from November 2026 through February 2027, including the year-end and New Year holidays, though some dates are excluded. Jetstar Japan Super Star Sale: Overview Jetstar Japan is holding its Super Star Sale from noon on Friday, October 23, 2026 to 4:59 pm on Monday, October 26, 2026. The sale covers 16 domestic routes and 5 Asian routes. One-way economy Starter fares start from ¥3,690 on the Tokyo (Narita)–Osaka (Kansai) route. Travel runs from November through February 2027, making this a good chance to lock in fares early for winter trips within Japan or to Taiwan and Hong Kong. Sale at a Glance Sale

The TX! 1-Day Unlimited Ride Ticket covers unlimited rides between Akihabara and Tsukuba for ¥2,560 (adults) or ¥690 (children), which suits days with several stopovers along the line. Since October 1, 2026, it has been sold year-round as a QR ticket. It can only be bought on the day of use, and vending machines sell it until 6:00 p.m. Tsukuba Express “TX! 1-Day Unlimited Ride Ticket” Now Sold Year-Round Metropolitan Intercity Railway Company has been selling the “TX! 1-Day Unlimited Ride Ticket” (TX！1日乗り放題きっぷ) year-round since October 1, 2026. The ticket lets you get on and off as many times as you like for one day between Akihabara and Tsukuba stations on the Tsukuba Express (TX). At the same time, the ticket format has changed from the previous magnetic ticket to a QR ticket. Because you can buy it at any time of year, day trips that combine sightseeing