AA 2450 then AA 2451 at Miami
Varadero → Miami → San José (Costa Rica)
Timetable, Miami time
11:53AA 2450 from Varadero at the gate
10:55AA 2451 to San José (Costa Rica) leaves the gate
23 h 02 apart on the timetable, overnight
AA 2451 leaves 23 h 02 after AA 2450 arrives on the timetable: more than half a day, so not a connection we count.