Core Viewpoint - The launch of the direct flight route from Haikou to Seoul by Korean Dewei Airlines enhances connectivity between the two cities, increasing the total weekly flights to six, complementing the existing service by Hainan Airlines [1][5]. Group 1: Route Details - Korean Dewei Airlines has officially opened the Haikou-Seoul direct flight route on December 4 [1]. - The new route operates using Boeing 737 aircraft, with flights scheduled every Thursday and Sunday [5]. - The inbound flight TW623 departs from Incheon International Airport at 22:05 local time and arrives in Haikou at 1:55 the next day Beijing time [5]. - The outbound flight TW624 leaves Haikou at 2:55 Beijing time and arrives in Incheon at 8:55 local time [5]. Group 2: Market Impact - The introduction of this route increases the flight frequency between Haikou and Seoul, indicating a growing demand for travel between these two destinations [1]. - The collaboration between Korean Dewei Airlines and Hainan Airlines suggests a strategic move to enhance market presence and customer options in the region [1].