How to Add Jeju to a Seoul Trip: Flights, Ferries, Entry Rules and a 2–3 Day Plan (WYD 2027, Fanomenon)
Disclosure: This post contains Creatrip affiliate links. If you book through them, I earn a small commission at no extra cost to you. How this site makes money . Plenty of visitors come to Korea for one big event in Seoul, World Youth Day in August 2027 or the Fanomenon K-pop festival in December 2027, and then ask whether Jeju is worth the detour. It is an hour's flight away, and I think it is. This guide covers how to get from Seoul to Jeju, the one entry rule that catches people out, where to stay and a two- or three-day plan. Fares and schedules change often, so check before you book. Last checked 1 November 2026. Quick answer: Fly from Gimpo Airport (GMP) to Jeju (CJU) . It is about an hour in the air, and Gimpo–Jeju is the busiest air route in the world, so there are flights all day. Landing at Incheon? Take the AREX all-stop train to Gimpo (₩4,350 from Terminal 1, ₩4,950 from Terminal 2 with a transit card). Direct Incheon–Jeju flights exist but run only a few times a...