GF 6446 then VA 8085 at San Francisco
Dallas-Fort Worth → San Francisco → Houston
Timetable, San Francisco time
19:23GF 6446 from Dallas-Fort Worth at the gatealso IB 8031
16:40VA 8085 to Houston leaves the gate
21 h 17 apart on the timetable, overnight
VA 8085 leaves 21 h 17 after GF 6446 arrives on the timetable: more than half a day, so not a connection we count.