KTO explains that passengers without a transit card can buy a single-use subway ticket at a vending machine with a KRW 500 deposit in addition to the fare. After exiting at your destination, return the used ticket at a deposit-refund machine for the KRW 500 refund. Do not confuse this process with refunds for rechargeable Tmoney cards.

Live schedules, eligibility, fares and disruptions must be rechecked with the operator.