EC 7639 then DL 8858 at Madrid
Lisbon → Madrid → Atlanta
Timetable, Madrid time
08:45EC 7639 from Lisbon at the gate
21:30DL 8858 to Atlanta leaves the gate
12 h 45 apart on the timetable
DL 8858 leaves 12 h 45 after EC 7639 arrives on the timetable: more than half a day, so not a connection we count.