Incheon eSIM
Incheon is the gateway and a city of its own: the airport on an island, a harbour with a Chinatown, and the newer skyline of Songdo. If you stay a night near the airport or the port, the Korea plan works from the first minute.

Before your Incheon trip
The airport is the city
Incheon International sits on an island of its own, linked by the airport rail and expressways. Install the eSIM before you fly, and the first ride is online.
A stop worth the night
Chinatown, the port and the waterfront fill a short stop, and Songdo adds a newer city skyline to walk.
Gateway to Seoul
The airport rail reaches central Seoul in under an hour, through Incheon on the way. The same plan covers the whole country.
A few things before you fly.
Should I buy a SIM at Incheon Airport?
An eSIM set up before you fly means no queue at a counter and a working map on the airport rail.
How far is Incheon from Seoul?
The airport rail links the airport to central Seoul in under an hour, and Incheon city is a stop along the way.
Is one day enough in Incheon?
For a first night or a layover, yes: the airport, Chinatown and the port fill a day.