UA 1341 then MX 229 at San Francisco
Detroit → San Francisco → Louisville
Timetable, San Francisco time
19:31UA 1341 from Detroit at the gatealso OZ 9538
11:54MX 229 to Louisville leaves the gate
16 h 23 apart on the timetable, overnight
MX 229 leaves 16 h 23 after UA 1341 arrives on the timetable: more than half a day, so not a connection we count.