UA 260 then FR 5482 at Madrid
Washington → Madrid → Porto
Timetable, Madrid time
07:45UA 260 from Washington at the gatealso AC 3816, SN 8927, LH 9385
23:25FR 5482 to Porto leaves the gate
15 h 40 apart on the timetable
FR 5482 leaves 15 h 40 after UA 260 arrives on the timetable: more than half a day, so not a connection we count.