WN 209 then WN 2749 at Denver
St Louis → Denver → Oklahoma City
Timetable, Denver time
18:50WN 209 from St Louis at the gate
18:15WN 2749 to Oklahoma City leaves the gate
23 h 25 apart on the timetable, overnight
WN 2749 leaves 23 h 25 after WN 209 arrives on the timetable: more than half a day, so not a connection we count.