KTO's airport transportation guide compares direct regional airport buses with rail and domestic-flight connections for journeys beyond Seoul. A direct coach from Incheon Airport may avoid an unnecessary detour through Seoul Station. Where a suitable coach does not operate, travelers may take AREX to Seoul Station and connect to KTX or other trains, or transfer to Gimpo Airport for selected domestic flights. Not every route exists for every city: check current operator schedules, seats and connection times before booking.
All live routes, prices and connections must be checked with each operator.