Decision tool · Updated 2026-09-07
Korea transit compare
Pick a corridor. See time, typical fare, and when KTX beats the bus — or when a flight only looks faster.
Pick a corridor. See time, typical fare, and when KTX beats the bus — or when a flight only looks faster.
Times are station-to-station or gate-to-gate. Door-to-door adds subway, security, and traffic. Holiday weeks (Seollal, Chuseok) inflate bus and KTX prices first.
| Corridor | Default pick | Budget pick | Avoid if… |
|---|---|---|---|
| Seoul–Busan | KTX | Express bus | You book a flight without checking total time |
| Seoul–Jeju | Flight (GMP) | Overnight ferry (niche) | You assume a train exists |
| Seoul–Gyeongju | KTX + local | Bus to downtown | You forget Singyeongju ≠ historic center |
| ICN → Seoul | AREX Express / All-stop | All-stop + T-money | You take a taxi alone at peak without splitting |
Next: KTX guide · AREX Express · ICN cost calculator · KORAIL Pass
✅ Checked 2026-09-07 · Sources: Korail / Let’s Korail · VisitKorea · KoreaPlus field checks 2026. Fares and rules change — the gate screen, ticket machine or official notice wins over this page.