Travel Korea 1.Airport.

1. Airpoooooooooooort

When visit to Korea, Most people would take airplane to get here, So i'm gonna discuss about the airport.

Most visitors from airplane would get to the Incheon or Kimpo international airport.

Then most people would go to the Seoul(the Capital city) or any transportation place to go to another place by taking bus, train.

To go to Seoul From Incheon International Airport

If you get to the Incheon International Airport, There are few ways to go to Seoul from there.

You can rent a car or take a bus and train.

For the rental cars, 

There are some companies like AJ rent car or AVIS, So you can compare the price and make a online reservation on the site like Rentalcars.com or KAYAK. 

For the train, which is most comfortable and inexpensive,

As you see the above picture, Assume you are on 3F(Departure), you can take escalator or elevator to go down to B1, Once you get to B1, Go down straight following the train signs, Then you can buy Express train(30~40min of waiting time per trains and takes about 40min to get to the Seoul train station) or All-stop train ticket on the vending machine and don't worry about how to buy it, There's a Language change button. Also remind that you can get group saver discount if your group is 3 or over 3 people.

For the bus,

You can use Incheon airport site http://www.airport.kr/pa/en/a/index.jsp. There are also late night buses.

One thing that i want to recommend if you'll gonna use Public transportation a lot, You can buy a transportation card which once you buy it(around 2~3000won, You can buy it in most convenient stores also airport) and top up the card, You can have transfer for 30min since you tag a machine where you get off the bus or ticket barrier of subway station.

I hope these informations are helpful for you guys, Stay safe!