Key Takeaways：Booking runs May 1–31, 2026 for travel through October 24, 2026, with all-inclusive one-way fares starting at JPY 13,520 from Incheon to Saga. Fuel surcharges and airport fees are already included, and promo code “MAY26” takes up to 10% off Japan-departing itineraries. Bookings are accepted only on T’way Air’s official website.
T’way Air “t’割” Sale Overview
Korean carrier T’way Air has launched its official-website-only “t’割” sale, offering one-way fares between Japan and Korea from JPY 13,520 all-inclusive. All prices include fuel surcharges and airport facility fees, so there are no hidden costs at checkout.
Sale and Travel Periods
- Booking window: May 1 to May 31, 2026
- Travel period: May 1 to October 24, 2026
- Channel: T’way Air official website only
- Promo code: Enter “MAY26” on Japan-departing itineraries for up to 10% off
Limited inventory; sales end when seats run out.
Routes and One-Way Total Fares
From Seoul/Incheon
- Saga: JPY 13,520
- Fukuoka: JPY 14,670
- Osaka/Kansai: JPY 16,230
- Tokyo/Narita: JPY 17,300
- Kumamoto: JPY 18,570
- Okinawa/Naha: JPY 19,990
- Sapporo/Chitose: JPY 20,350
From Busan
- Fukuoka: JPY 15,560
- Tokyo/Narita: JPY 15,810
- Osaka/Kansai: JPY 16,180
- Sapporo/Chitose: JPY 20,430
From Daegu
- Fukuoka: JPY 15,590
- Osaka/Kansai: JPY 16,180
- Tokyo/Narita: JPY 18,980
From Jeju
- Fukuoka: JPY 15,560
- Osaka/Kansai: JPY 22,120
Booking Tips and Notes
The cheapest deal is Incheon to Saga at JPY 13,520, ideal for travelers heading to Kyushu. Don’t forget to apply promo code “MAY26” on Japan-originating bookings for the extra discount.
- Fares include fuel surcharges and airport fees
- Changes and refunds are restricted; review fare rules before purchase
- Checked baggage costs extra (typical LCC policy)
- Popular routes sell out fast; book early
Details and booking via T’way Air’s official website. Feature page: https://www.traicy.com/link/TW