F9 2538 then F9 9805 at Philadelphia
Tampa → Philadelphia → St Louis
Timetable, Philadelphia time
09:54F9 2538 from Tampa at the gate
22:50F9 9805 to St Louis leaves the gate
12 h 56 apart on the timetable
F9 9805 leaves 12 h 56 after F9 2538 arrives on the timetable: more than half a day, so not a connection we count.