Incheon Airport Railroad (IAR), the operator of an express train running between Seoul Station and Incheon International Airport, is offering discount coupons to travelers from Nov. 11. until Dec. 31.
The coupon can be exchanged for a 10,000 won voucher for anyone who purchases more than $50 worth of goods at duty free shops in the airport.
For those who purchase more than $100, one free train ticket and a passport case will be offered.