Incheon Airport to Seoul in 2026: AREX express (₩13,000, 43 min), all-stop train (₩4,750), limousine buses, late-night buses and taxi fares, with tips for each.
Book KTX trains on Korail's English site in 2026: the new 2-month booking window, KTX–SRT merger, Seoul–Busan ₩54,400 fare, refund fees and the Korail Pass.
Which Seoul transit card should you buy in 2026? T-money, WOWPASS and the Climate Card compared on price, top-ups, coverage and refunds, with official fares.