FR 393 then UA 261 at Madrid
Ibiza → Madrid → Washington
Timetable, Madrid time
16:35FR 393 from Ibiza at the gate
11:00UA 261 to Washington leaves the gate
18 h 25 apart on the timetable, overnight
UA 261 leaves 18 h 25 after FR 393 arrives on the timetable: more than half a day, so not a connection we count.