RS 906 then KE 645 at Incheon
Hagåtña → Seoul → Singapore
Timetable, Seoul time
06:25RS 906 from Hagåtña at the gate
18:35KE 645 to Singapore leaves the gate
12 h 10 apart on the timetable
KE 645 leaves 12 h 10 after RS 906 arrives on the timetable: more than half a day, so not a connection we count.