VA 8388 then VA 8393 at San Francisco
Washington → San Francisco → Miami
Timetable, San Francisco time
12:25VA 8388 from Washington at the gate
07:00VA 8393 to Miami leaves the gate
18 h 35 apart on the timetable, overnight
VA 8393 leaves 18 h 35 after VA 8388 arrives on the timetable: more than half a day, so not a connection we count.