WN 313 then UA 447 at Denver
Austin → Denver → Knoxville
Timetable, Denver time
11:05WN 313 from Austin at the gate
10:15UA 447 to Knoxville leaves the gate
23 h 10 apart on the timetable, overnight
UA 447 leaves 23 h 10 after WN 313 arrives on the timetable: more than half a day, so not a connection we count.