Jeju Air Runs a 48-Hour Flash Sale on Japan–Korea Routes
Jeju Air is holding a 48-hour flash sale covering its routes between Japan and South Korea, running from 10:00 a.m. on August 26, 2026 until 9:59 a.m. on August 28. As the name suggests, the booking window lasts only 48 hours, with one-way fares starting from 13,530 yen in total. All displayed fares already include fuel surcharges, airport taxes and other fees, so the total payable amount is clear from the start.
Lowest Fares from/to Seoul/Incheon
The lowest one-way fares on routes serving Seoul/Incheon Airport are listed below. All figures are all-inclusive totals.
- Matsuyama: 13,530 yen
- Osaka/Kansai: 13,670 yen
- Hiroshima: 13,900 yen
- Shizuoka: 15,050 yen
- Tokyo/Narita: 15,070 yen
- Oita: 15,430 yen
- Fukuoka: 15,530 yen
- Nagoya/Chubu: 15,680 yen
- Kobe: 15,840 yen
- Okinawa/Naha: 18,230 yen
- Sapporo/Chitose: 18,450 yen
The cheapest is Matsuyama at 13,530 yen, with Osaka/Kansai and Hiroshima also in the 13,000-yen range. Regional airports are priced at or below the levels offered from the Tokyo area, which can mean significant savings depending on where you live.
Lowest Fares from/to Busan
- Osaka/Kansai: 13,670 yen
- Tokyo/Narita: 15,070 yen
- Fukuoka: 15,530 yen
- Sapporo/Chitose: 18,450 yen
Four routes serve Busan. While the network is smaller than Seoul’s, the Osaka/Kansai route matches Incheon at 13,670 yen, making it attractive for travelers who want to base their trip in Korea’s second city.
Why 13,000-Yen Fares Stand Out on Japan–Korea Routes
Japan–Korea flying is one of the most competitive short-haul international markets, and low-cost carriers run sales frequently. Even so, a one-way all-in total in the 13,000-yen range is genuinely cheap once taxes are factored in. Several routes come to just under 30,000 yen round trip, roughly the price of a peak-season domestic ticket in Japan. Regional departures such as Matsuyama, Hiroshima, Shizuoka and Oita look especially good value once you factor in the domestic travel costs of getting to Narita or Kansai.
Fare Type Depends on Your Departure Point
In this sale, every route except those departing Fukuoka uses the STANDARD fare, which includes 15 kg of checked baggage. Fukuoka departures use the BASIC fare, which does not include checked baggage, so a separate baggage fee applies if you need to check a bag. If you plan on shopping or a longer stay, adding baggage online in advance is usually cheaper than paying at the airport counter.
Travel Period and How to Book
The travel period runs from August 26 to September 30, 2026 — just over a month from the sale’s start, making this a short, concentrated offer suited to late-summer and early-autumn trips. Bookings are made through Jeju Air’s official website. Sale page: https://www.traicy.com/link/7C
Traffic tends to spike right after a sale opens, so registering an account and entering your passport details in advance will make the search-to-payment process much smoother.
Making the Most of a Short Travel Window
Because the travel period is only about a month, the most efficient approach is to lock in the dates you can take off first, then search for routes with remaining seats. Seoul/Incheon has plenty of options, making it easy to mix different airports for the outbound and return. Flying into Kansai and home from Fukuoka, or combining Incheon and Busan with a domestic Korean rail journey, are realistic plans given how small the fare gaps are in this sale.
Points to Note
- Lowest fares are capacity-controlled and may sell out quickly on certain flights and dates
- Weekends and holiday periods have fewer allocations; weekday departures are easier to book cheaply
- Sale fares typically carry restrictions or fees for changes and refunds
- Fukuoka’s BASIC fare excludes checked baggage, so recalculate the true total when comparing
- Seat selection, meals and priority boarding are charged separately
Summary
With one-way all-in fares from the 13,000-yen range, this sale is highly competitive by Japan–Korea standards. The travel window closes on September 30, so travelers who already have dates in mind have the advantage. Sales end at 9:59 a.m. on August 28, and popular routes may sell out well before the 48 hours are up — search and pay early.