FR 2540 then ET 1427 at Madrid
Bucharest → Madrid → Lisbon
Timetable, Madrid time
13:55FR 2540 from Bucharest at the gate
10:25ET 1427 to Lisbon leaves the gatealso DL 6743, AM 6914, AD 7854
20 h 30 apart on the timetable, overnight
ET 1427 leaves 20 h 30 after FR 2540 arrives on the timetable: more than half a day, so not a connection we count.