Quick answer
If you are in the public area with baggage, take the free airport shuttle bus from the departure level: T1 to T2 boards near Gate 8 on 3F; T2 to T1 boards near Gate 7 on 3F. The buses currently operate from early morning until late evening at roughly 7–20 or 10–20 minute intervals, depending on direction.
If waiting outside is inconvenient or you are closer to the basement Transportation Center, use AREX. The airport lists the inter-terminal trip as one stop, six minutes and ₩1,050. Add time to reach B1, buy or tap a fare and wait for the train.
If you are making an international connection without entering Korea, do not automatically go landside. Follow the green Transfer signs and your airline's instructions for the secure-area shuttle train and transfer screening.
First decide which route applies
- Confirm the terminal. Check the current flight listing and boarding pass, not only the airline name; operational terminal assignments can change.
- Identify your side of security. Travelers who have collected baggage or are checking in again are landside. Through-ticketed transfer passengers may have an airside route.
- Choose bus or AREX landside. The bus costs ₩0 and avoids a rail fare. AREX costs ₩1,050 but has a six-minute scheduled ride between the terminal stations.
- Budget the whole transfer. For the bus, allow about 30–45 minutes from deciding to move until reaching the other terminal. This is a Koursea planning estimate that includes walking and waiting, not an official guaranteed journey time.
- Recheck the check-in deadline. Moving buildings does not protect you from an airline's bag-drop or boarding cutoff.
How to take the free terminal shuttle
T1 to T2
- Go to Terminal 1, 3F departure level.
- Exit near Gate 8 and use the marked pick-up point.
- Board Airport 04 toward Terminal 2 and confirm “T2” with the driver or display before boarding.
The current official route page lists service from 04:30 to 23:20, every 10–20 minutes. The fare is free.
T2 to T1
- Go to Terminal 2, 3F departure level.
- Use the pick-up point in front of Gate 7, in the central area near Gates 6–7.
- Board Airport 03 toward Terminal 1. Do not confuse it with a parking-lot-only shuttle.
The current official route page lists service from 04:30 to 23:35, every 7–20 minutes. The fare is free.
Wheelchair users can request a free lift vehicle through the Shuttle Bus Office at 032-741-3217. The airport lists availability from 05:00 to 24:00 and recommends advance booking because a vehicle or staff member may not be available on demand.
AREX: the paid landside alternative
Both terminal stations are in the basement-level Transportation Centers. Follow signs for Airport Railroad/AREX, take the all-stop train one station in the correct direction, and exit at the other terminal. Incheon Airport currently publishes a six-minute ride and ₩1,050 fare.
For planning, allow roughly 15–25 minutes total after you reach the station area for ticketing, waiting, the ride and exiting; this is a Koursea estimate, not a published guarantee. Train operating hours are separate from shuttle-bus hours, so check the live AREX departure board before relying on it late at night.
Why the maglev is not your T2 transfer
The airport's current maglev page lists this route: Terminal 1, long-term parking, Joint Government Office, Paradise Hotel & Resort, Water Park and Yongyu. Terminal 2 is not on that route. The free service currently runs Tuesday–Sunday from 10:00 to 17:00 and closes on Mondays, Seollal and Chuseok day. It can be useful for its own route, but it cannot solve a wrong-terminal problem.
Also distinguish the public maglev from the airport's airside shuttle train. The shuttle train is part of specific secure transfer paths. It is not a public landside shortcut, and the official transfer instructions warn that some one-way movements cannot be reversed.
If the plan fails
- The shuttle has not arrived: recheck the route number and terminal direction, then use AREX if trains are operating.
- You are outside shuttle hours: check the live AREX board. If rail service has also ended, ask a staffed information desk for the current taxi pick-up point; do not wait at an unmarked curb.
- You are an airside transfer passenger: stop before immigration and ask the transfer desk or your airline. Leaving the secure area may add entry, baggage and security procedures.
- You are close to cutoff: contact the airline while moving. Airport transport cannot waive check-in, baggage-drop or gate-closing rules.
- You need an accessible vehicle: call 032-741-3217 as early as possible; the airport explicitly says availability is capacity-dependent.
FAQ
Does the Incheon Airport maglev connect Terminal 1 and Terminal 2?
No. The official maglev route runs from T1 toward Yongyu via parking and resort-area stops. Use the free landside shuttle, AREX, or the airside shuttle train when eligible.
Is the T1–T2 shuttle free?
Yes. The landside airport shuttle costs ₩0. AREX is the paid alternative at the airport's currently published ₩1,050 fare.
How much time should I allow?
Allow about 30–45 minutes by landside shuttle as a planning estimate. AREX takes six minutes on the train, but walking, ticketing and waiting add time.
Can a connecting passenger use the landside shuttle without entering Korea?
Do not leave the secure transfer path unless the airline or airport staff instructs you to. Follow the green Transfer signs for the applicable airside route and transfer security.
Official sources
The official pages below were opened and their current body text verified on 2026-08-28.