WN 347 then UA 225 at Denver
Birmingham (Alabama) → Denver → Philadelphia
Timetable, Denver time
18:45WN 347 from Birmingham (Alabama) at the gate
10:10UA 225 to Philadelphia leaves the gate
15 h 25 apart on the timetable, overnight
UA 225 leaves 15 h 25 after WN 347 arrives on the timetable: more than half a day, so not a connection we count.