From Gimpo Int’l Airport
Airport limousine bus bound for Ibis Myeong-dong (Limousine bus No. 6001) is available at the exit 6 of the International Line and exit 4 of the Domestic Line. Please get off at Ibis Myeong-dong in front of HANA bank.
By Subway
Take a subway line 5 at Gimpo Airport station and transfer to the line 2 at Youngdeungpo office station, direction to Sinchon and City Hall (Line No. 2, Green). Get off at Euljiro1 (il)ga exit 6 (Line No.2 Green) station. Ibis Myeong-dong is conveniently located within a few minutes walking distance from the subway station.
[#6001 Airport Limousine Bus] 
☞ http://www.airportlimousine.co.kr/route/route.htm