Eastar Jet Early Bird Special: Kumamoto-Busan from 1,000 Yen One Way, Until August 25

Lowest one-way fareJPY 1,000and upKumamoto to Busan / no checked baggage, taxes and charges extra

Airline

Eastar Jet

Routes

Incheon from seven Japanese cities and Busan from five — twelve in all

Sale period

2026-08-19 – 2026-08-25

Travel period

2026-10-01 – 2026-11-30 (two routes carry blackouts)

Deadline

2026-08-25; selling opened at 10:00 on 19 August

Checked on

2026-08-23

Eastar Jet ran an October–November early bird special on its Japan departures to Incheon and Busan. Kumamoto to Busan opened at JPY 1,000 one way. Selling ran from 10:00 on 19 August to 25 August 2026, for flights between 1 October and 30 November.

Kumamoto at JPY 1,000 comes without a bag, so the cheapest fare that carries 15 kg is Osaka at JPY 1,900

Five routes went to Busan: Kumamoto at JPY 1,000, then Osaka at JPY 1,900, Fukuoka at JPY 2,500, Sapporo at JPY 3,500 and Okinawa at JPY 4,000. The headline route is the one exception in the group — it is the only Busan fare sold without 15 kg of checked baggage. Put a suitcase in the calculation and Kumamoto and Osaka stop being comparable at all; on equal terms the floor is the JPY 1,900 from Osaka.

Incheon had seven routes, with Osaka and Tokushima tied at JPY 2,000. What separates those two is not money but the calendar. Tokushima is blacked out from 25 October to 30 November, Kagoshima from 1 October to 24 October — the usable windows point in opposite directions. Read the travel period as a flat two months and one of these routes loses its first half while the other loses its second.

The baggage rule is where the official page argues with itself. Its notes say the special fare is a one-way fare and includes neither taxes nor checked baggage, yet individual route cards carry a “15 KG checked baggage included” label. Counting the cards, eight of the twelve routes include it and four do not: Kumamoto–Busan, Osaka–Incheon, Tokushima–Incheon and Tokyo–Incheon. On those four a baggage charge lands on top of the displayed fare, which reshuffles the cheapest-first order once you look at what leaves your account. Japanese departures also carry the international tourist tax of JPY 3,000 per person, in force for departures from 1 July 2026. For a sense of the going rate that autumn, set this against the Jeju Air Kyushu promotion.

Where you bought it mattered too. The fare applied only to members booking through the official website, the mobile web or the app; the reservation centre and every other sales channel were outside it. Reading fare displays in general is covered in LCC cheap flight booking techniques, and since the fare line here is the smallest part of the trip, what a night in Seomyeon costs tells you more about the total than the fare table does.

When does the next airfare sale come? Six weeks of records and what is bookable now →

Across the twelve routes, Incheon runs from JPY 2,000 in Osaka to JPY 6,900 in Okinawa

Where the baggage column reads “no”, a checked bag is charged on top of the fare shown.

Source: Eastar Jet official event page, “October–November early bird special” (route fares, blackout periods, checked baggage, conditions of use), checked 2026-08-23 / Photo: Masakatsu Ukon, CC BY-SA 2.0 (Wikimedia Commons)