WN 347 then UA 596 at Denver
Birmingham (Alabama) → Denver → Des Moines
Timetable, Denver time
18:45WN 347 from Birmingham (Alabama) at the gate
09:45UA 596 to Des Moines leaves the gate
15 h apart on the timetable, overnight
UA 596 leaves 15 h after WN 347 arrives on the timetable: more than half a day, so not a connection we count.