If you take a taxi from the airport, we suggest that you take one from a designated taxi stand, and ask for a receipt. Luxury taxis are black in color and are higher-priced than the grey-color general taxis. Estimated charges for a taxi from Incheon to COEX are approximately 50,000 won for a general taxi and 90,000 won for a luxury taxi. The passenger will also be required to pay the road toll fee of approximately 7,000 won.

Most visitors choose to take an airport shuttle bus instead of a taxi. We recommend either the KAL Limousine Bus or the Korea City Air Terminal Limousine Bus. Both buses cost 13,000 won, and it usually takes about an hour, depending on traffic conditions.

The red KCAT Limousine Bus will bring you to the City Air Terminal at the COEX Center.
The blue KAL Limousine Bus goes directly to many 4 and 5-star hotels throughout the city.
Note that both the COEX InterContinental and Grand InterContinental Hotels are located here
at COEX. You can take these buses from the arrivals section at Incheon Airport.
Employees at information desks will be happy to direct you to the appropriate departure area. You can also take a high speed train from Incheon International Airport to Gimpo Airport.
It takes roughly half an hour and costs 3,100 won. From Gimpo Aiport you can access the Seoul Subway system. For more information please see Airport Express:
http://www.arex.or.kr/jsp/eng/main.jsp

There are General Buses running from Gimpo Airport to COEX (Samseong Station).
The estimated travel time is about 60 minutes, and the fare is 2,500 won. Take bus #600. You can also take the Subway from Gimpo Airport. Ride line #5 to Yeongdeungpo-gu Office and transfer to line #2, to Samseong Station. It should take approximately 65 minutes, and the fare is 1,400 won. For more subway information please see Seoul Metro:
http://www.seoulmetro.co.kr/eng/index.jsp