UA 225 then AA 1060 at Philadelphia
Denver → Philadelphia → Fort Lauderdale
Timetable, Philadelphia time
15:46UA 225 from Denver at the gate
08:50AA 1060 to Fort Lauderdale leaves the gate
17 h 04 apart on the timetable, overnight
AA 1060 leaves 17 h 04 after UA 225 arrives on the timetable: more than half a day, so not a connection we count.