Recommend Hotels around Seoul Station. It is a direct train line from the airport, around all the tourist attractions and Wedding Venue! Unfortunately, there are no group rates.
Hotel
Four Points by Sheraton Josun, Seoul Station
366 Hangang-daero, Yongsan District, Seoul 04323, South Korea
Hotel
L'Escape Hotel
67 Toegye-ro, Jung District, Seoul 04529, South Korea
Hotel
LOTTE HOTEL SEOUL
30 Eulji-ro, Jung District, Seoul 100-070, South Korea
Hotel
THE PLAZA Seoul, Autograph Collection
119 Sogong-ro, Jung District, Seoul 04525, South Korea