Jin Air Distributes Coupons Worth Up to ¥3,000 on Japan–Seoul/Incheon Flights
Jin Air, a South Korean low-cost carrier (LCC), is running a promotion on flights from Japan to Seoul/Incheon. It is distributing coupons that take ¥3,000 off round-trip fares and ¥1,500 off one-way fares. The coupons are only available on Fridays, Saturdays and Sundays between October 2 and October 25, 2026. The travel period runs from October 25 to December 23, which suits anyone planning a trip to Korea between late autumn and the end of the year.
JCB cardholders also get up to 20 kg of free checked baggage on return flights from Korea when they present their card. This benefit runs much longer, until March 31, 2027. Below is a breakdown of the discount conditions, eligible dates and key points to note.
Promotion Overview
- Airline: Jin Air
- Route: Japan to Seoul/Incheon
- Discount: ¥3,000 off round-trip fares, ¥1,500 off one-way fares
- Coupon distribution: Fridays to Sundays only, October 2–25, 2026
- Travel period: October 25 – December 23, 2026 (some dates excluded)
- Ineligible fares: Some SUPERLOW fares and event fares
- Official website: https://www.jinair.com/
Coupon Distribution Dates
The coupons are not available every day between October 2 and 25, only on Fridays, Saturdays and Sundays. On the 2026 calendar, that comes to four weekends and 12 days in total:
- Friday, October 2 / Saturday, October 3 / Sunday, October 4
- Friday, October 9 / Saturday, October 10 / Sunday, October 11
- Friday, October 16 / Saturday, October 17 / Sunday, October 18
- Friday, October 23 / Saturday, October 24 / Sunday, October 25
Today, Saturday, October 3, the day this article is published, is one of the eligible days. Coupons are not distributed on weekdays, so you will need to book on a weekend. The final day, Sunday, October 25, is also the first day of the travel period.
Discount Details
¥3,000 off round trips, ¥1,500 off one-way
The discount depends on the fare type: ¥3,000 off round-trip fares and ¥1,500 off one-way fares. The headline figure of up to ¥3,000 refers to the round-trip discount. For a typical return trip between Japan and Seoul, booking a round trip gets you the maximum discount.
Watch out for ineligible fares
Some SUPERLOW fares and event fares are excluded from the discount. If you pick a fare that is already cheap on the booking screen, the coupon may not apply. Whether a regular fare with the coupon or an ineligible fare without it ends up cheaper depends on the date. Compare the final payment amounts before you decide.
Travel Period and Blackout Dates
Coupon bookings are valid for travel from October 25 to December 23, 2026. However, some dates within this period are excluded. The announcement does not list the specific blackout dates, so be sure to check the official website before booking.
The travel period covers late autumn through early winter, up to just before Christmas. It works for a range of plans, from short weekend getaways to shopping trips before the year-end. Note that the year-end and New Year holiday period from December 24 onward falls outside the travel period.
Up to 20 kg of Free Checked Baggage with a JCB Card
Separately from the coupon, presenting a JCB card gets you up to 20 kg of free checked baggage on return flights from Korea. This benefit runs until March 31, 2027, so it also applies to trips taken after the coupon travel period ends on December 23.
Checked baggage often costs extra on LCCs. Souvenirs and shopping tend to add weight on the way home, so a free 20 kg allowance on the return leg is a useful perk. It applies only to return flights from Korea, not to outbound flights from Japan. Check the official website for details such as when to present the card and which card types are eligible.
Key Points to Check Before Booking
- Coupons are distributed only from Friday to Sunday, not on weekdays
- The discount differs: ¥3,000 for round trips, ¥1,500 for one-way
- Some SUPERLOW fares and event fares are not eligible
- The travel period is October 25 – December 23, with some dates excluded
- The promotion covers flights from Japan to Seoul/Incheon
- The JCB baggage benefit applies to return flights from Korea and runs until March 31, 2027
Summary
Jin Air’s latest promotion offers weekend-only coupons that take ¥3,000 off round-trip fares and ¥1,500 off one-way fares on flights from Japan to Seoul/Incheon. The coupons are available on only 12 days, Fridays to Sundays through October 25. If you are planning a Seoul trip between late autumn and late December, it helps to settle your dates early. JCB cardholders can also use the free checked baggage allowance on their return flight. For the latest fares, blackout dates and coupon terms, check the Jin Air official website (https://www.jinair.com/).