UA 3941 then TN 1339 at San Francisco
Washington → San Francisco → Los Angeles
Timetable, San Francisco time
14:07UA 3941 from Washington at the gate
14:05TN 1339 to Los Angeles leaves the gatealso BA 1786, QF 3023, AY 4100, IB 4737, AA 6429, GF 6573
23 h 58 apart on the timetable, overnight
TN 1339 leaves 23 h 58 after UA 3941 arrives on the timetable: more than half a day, so not a connection we count.