GK 7300 then UA 838 at Narita
Fukuoka → Tokyo → San Francisco
Timetable, Tokyo time
20:35GK 7300 from Fukuoka at the gate
16:55UA 838 to San Francisco leaves the gate
20 h 20 apart on the timetable, overnight
UA 838 leaves 20 h 20 after GK 7300 arrives on the timetable: more than half a day, so not a connection we count.