Getting around in South Korea by train, bus, taxi or plane. An advanced metro system and multiple bus companies Korea is a great country to travel in once you learn to navigate the public transportation system it is cheap and easy to go anywhere almost any time although you can encounter crowds of people at any time going to almost any place. One of the first things you need to do upon arriving at the airport is to figure out how to get to your final destination. The main Inchon international airport in Korea is a transportation hub and you can get on a bus, train on another plan. Often to change plans to go to a local destination you will have to go to the Gimpo airport and you will need to give yourself at least 2 hr plus check in time to do this. So if your travel involves changing plans and changing airports I recommend a minimum ;layover time of 4 hrs particularly if it is your first time doing this. Korea has a web site with specific information on everything. We will break this up into sections so you can easily find the information that is most suited for your travel needs in Korea.
The Airport limousine which is an express bus to a number of location to and from the Airports of Korea. You can check the routs and timing of the airport express buses to anyplace through the Seoul are at the Korean airport limousine web site The name is a bit misleading as it is an express buss set up to carry luggage.