WN 261 then DL 955 at Atlanta
Tampa → Atlanta → Las Vegas
Timetable, Atlanta time
19:40WN 261 from Tampa at the gate
19:21DL 955 to Las Vegas leaves the gate
23 h 41 apart on the timetable, overnight
DL 955 leaves 23 h 41 after WN 261 arrives on the timetable: more than half a day, so not a connection we count.