AZ 4441 then UA 1341 at San Francisco
Washington → San Francisco → Pittsburgh
Timetable, San Francisco time
21:29AZ 4441 from Washington at the gate
21:20UA 1341 to Pittsburgh leaves the gatealso NZ 9390
23 h 51 apart on the timetable, overnight
UA 1341 leaves 23 h 51 after AZ 4441 arrives on the timetable: more than half a day, so not a connection we count.