Steps
- 01
At the City Airport Terminal on B2 of Seoul Station, scan the AREX Express ticket QR code at the gate.
- 02
Ask at the airline counter whether check-in and baggage drop are available for your flight.
- 03
Complete immigration, then take the AREX Express to Incheon Airport.
- 04
At the airport, follow the dedicated City Airport Terminal departure-lane signs on the third floor.
- 05
Seoul Station B2 airline check-in operates 05:20–19:00, with acceptance closing at 18:50. You must also meet T1’s 3-hour or T2’s 3-hour-20-minute predeparture cutoff; use the earlier deadline. Find the operating carrier and route from your booking in the official eligible-flight table. If absent or too late, take your bags to airport check-in.
Before you start
- Confirm your same-day international flight from Incheon Airport and your AREX Express ticket.
- Check the official list to see whether your airline and flight are eligible at Seoul Station.
- Plan for the published check-in cutoff: 3 hours before Terminal 1 or 3 hours 20 minutes before Terminal 2 departure.
Easy points to confuse
- Assuming an All-Stop train ticket qualifies
- Ignoring airline, route, and Terminal 1 or 2 cutoffs
- Bringing an oversized bag above the published 150 cm or 50 kg limit
Practical example
Example: a 17:00 Terminal 2 departure must be checked in at Seoul Station before 13:40. If the flight is ineligible or the cutoff has passed, check in at the airport; do not plan the journey around Seoul Station baggage drop.
Sources and review date · 1
Checked 2026-10-10 · Review by 2026-11-10