F9 4937 then DL 275 at Detroit
Raleigh-Durham → Detroit → Tokyo
Timetable, Detroit time
17:59F9 4937 from Raleigh-Durham at the gate
14:10DL 275 to Tokyo leaves the gate
20 h 11 apart on the timetable, overnight
DL 275 leaves 20 h 11 after F9 4937 arrives on the timetable: more than half a day, so not a connection we count.