AA 2199 then MQ 4159 at Miami
Boston → Miami → Northwest Arkansas
Timetable, Miami time
20:40AA 2199 from Boston at the gate
20:15MQ 4159 to Northwest Arkansas leaves the gate
23 h 35 apart on the timetable, overnight
MQ 4159 leaves 23 h 35 after AA 2199 arrives on the timetable: more than half a day, so not a connection we count.