Key Takeaways：Jin Air’s ‘FRIDAY HAPPY FLYDAY’ sale knocks up to 3,000 yen off Japan-to-Korea flights with promo code FLYDAY5, but only from May 29-31, 2026. Travel runs June 1-Aug 31, and bookers also score perks like WiFi bento, AREX rail discounts, and a shot at a free eSIM. If a summer Korea trip is on your radar, three days is all you’ve got to lock in the deal.
Jin Air Launches ‘FRIDAY HAPPY FLYDAY’ Sale
South Korean low-cost carrier Jin Air is holding a limited-time ‘FRIDAY HAPPY FLYDAY’ sale from May 29 to May 31, 2026. Flights from Japan to Korea are discounted by up to 3,000 yen.
Sale Overview
- Sale Period: May 29 (Fri) – May 31 (Sun), 2026
- Eligible Routes: Departures from Japan to Korea (both one-way and round-trip)
- Discount: Up to 3,000 yen off the fare
- Travel Period: June 1 – August 31, 2026 (some dates excluded)
- Promo Code: FLYDAY5
How to Apply the Discount
Enter the promo code ‘FLYDAY5‘ at the booking screen to receive the discount. It applies to both one-way and round-trip bookings, making it suitable for short trips and return travel alike.
Perks for Bookers
In addition to the discount, the sale offers the following perks:
- eSIM: 50 bookers selected by lottery
- For everyone: WiFi bento, Lotte Mart, and AREX (airport railway) discounts for all who book
Things to Note
- Some dates within the travel period are excluded from the discount.
- The discount may be limited by quantity or seat availability.
- The sale runs only for three days through May 31, 2026 — early booking is recommended.
- Be sure to enter promo code ‘FLYDAY5’ when booking.
For travelers planning a summer trip to Korea, this is a great chance to book round-trip flights at a discount. Check the Jin Air official website for details and reservations.
Sale link: https://traicy.com/link/LJ