ICN Transfer Guide

Seoul Incheon International Airport · updated Oct 2026

TL;DR: most international-to-international transfers at ICN need no rechecking of bags and no Korean visa if you stay airside. Minimum realistic connection: 2 hours (T1↔T2 change: 3 hours).

Terminal 1 vs Terminal 2

Korean Air, Delta and SkyTeam use T2; most others (United, American, Asiana) use T1. Check your terminals before booking — a T1↔T2 transfer adds ~40–60 min via the free shuttle train.

Do I need to recheck bags?

On a single ticket with through-checked bags: no. On separate tickets, you must clear immigration, collect bags, and re-check — budget 3+ hours.

Transit hotel & rest

Walkerhill Transit Hotel (airside, T1) and the Matina lounges offer hourly rooms. Free showers exist in both terminals.

Visa

Staying airside: no visa needed for most nationalities. Entering Korea on a layover: many nationalities get visa-free entry; check current rules before counting on it.