T’way Air’s t’wari Sale: A Code Worth Up to 11% Off

Discount, maximum11%Japan-origin itineraries, with the code JUL26. The fares this airline displays already contain the fuel surcharge and taxes, so what you see is the total

Airline

T’way Air, operating as Trinity Airways since 10 September 2026

Routes

Seoul (Incheon), Busan, Daegu, Jeju and Cheongju ⇄ Narita, Kansai, Fukuoka, Saga, Kumamoto, Naha and New Chitose

Sale period

2026-07-01 – 2026-07-31

Travel period

2026-07-01 – 2027-03-27

Deadline

2026-07-31

Checked on

2026-09-14

T’way Air ran t’wari through July 2026, taking up to 11% off any Japan-origin booking made with the code JUL26. The travel period stretched to 27 March 2027, one-way fares are quoted as totals including fuel surcharge and taxes, and Incheon to Saga started at JPY 15,625. A JPY 3,000 coupon for round-trip payments went out alongside it.

Incheon to Saga was JPY 15,625 all-in, Narita JPY 19,100

What this airline puts on screen is the total, fuel surcharge and taxes included, so there is no second sum to do at the end. One way from Incheon: Saga JPY 15,625, Fukuoka JPY 16,690, Kumamoto JPY 17,455, Kansai JPY 18,255, Narita JPY 19,100. Busan to Narita came out at JPY 17,735 and Daegu to Narita at JPY 17,835 — both under the Seoul flights on the same Tokyo end.

Distance showed up hard at the other end of the table. Naha to Incheon was JPY 25,750 and New Chitose to Incheon JPY 29,390, which is 1.6 to 1.9 times Saga. Kyushu is cheap because Incheon is close, so the same code lands on a bill that nearly doubles depending on where you live.

The code only works if you enter it while searching. Remember it after picking a fare and there is no way to apply it retroactively; you start again. The JPY 3,000 coupon is separate, goes towards a round-trip payment, and needs you logged in on the official site to claim. Treat 11% as the ceiling rather than the rate, because route and fare type both pull it down. The same month had ZIPAIR selling international seats from around JPY 15,000 and Jin Air handing out a 15% code, so the Korea routes had turned into a contest of discount codes rather than of fares.

When does the next airfare sale come? The record and what you can book now →

Source: T’way Air’s own announcement, July 2026 / TRAICY, 3 July 2026 / sky-budget, 2 July 2026 / rebrand to Trinity Airways and the unchanged TW code, flight numbers and bookings: ch-aviation and FlightGlobal, September 2026, and the airline’s own site, checked 20 September 2026 / Photo: Yasu, CC BY-SA 3.0 (Wikimedia Commons) / Checked on 2026-09-14