AS 506 then UA 748 at Dulles
San Diego → Washington → Geneva
Timetable, Washington time
17:40AS 506 from San Diego at the gate
17:25UA 748 to Geneva leaves the gate
23 h 45 apart on the timetable, overnight
UA 748 leaves 23 h 45 after AS 506 arrives on the timetable: more than half a day, so not a connection we count.