F9 124 then WN 261 at Atlanta
Montego Bay → Atlanta → Denver
Timetable, Atlanta time
20:00F9 124 from Montego Bay at the gate
17:35WN 261 to Denver leaves the gate
21 h 35 apart on the timetable, overnight
WN 261 leaves 21 h 35 after F9 124 arrives on the timetable: more than half a day, so not a connection we count.