F9 1447 then EK 6420 at San Francisco
Atlanta → San Francisco → Houston
Timetable, San Francisco time
20:50F9 1447 from Atlanta at the gate
18:35EK 6420 to Houston leaves the gate
21 h 45 apart on the timetable, overnight
EK 6420 leaves 21 h 45 after F9 1447 arrives on the timetable: more than half a day, so not a connection we count.