WN 347 then UA 534 at Denver
Birmingham (Alabama) → Denver → Great Falls
Timetable, Denver time
18:45WN 347 from Birmingham (Alabama) at the gate
11:45UA 534 to Great Falls leaves the gate
17 h apart on the timetable, overnight
UA 534 leaves 17 h after WN 347 arrives on the timetable: more than half a day, so not a connection we count.