WN 1086 then SY 8249 at Denver
Dallas → Denver → Reno
Timetable, Denver time
14:30WN 1086 from Dallas at the gate
14:10SY 8249 to Reno leaves the gate
23 h 40 apart on the timetable, overnight
SY 8249 leaves 23 h 40 after WN 1086 arrives on the timetable: more than half a day, so not a connection we count.