TP 4399 then UA 1885 at San Francisco
Boston → San Francisco → Tampa
Timetable, San Francisco time
00:44TP 4399 from Boston at the gate
23:00UA 1885 to Tampa leaves the gatealso VA 8259
22 h 16 apart on the timetable
UA 1885 leaves 22 h 16 after TP 4399 arrives on the timetable: more than half a day, so not a connection we count.