OO 377 then DL 2581 at Salt Lake City
San Francisco → Salt Lake City → Austin
Timetable, Salt Lake City time
13:40OO 377 from San Francisco at the gate
13:21DL 2581 to Austin leaves the gate
23 h 41 apart on the timetable, overnight
DL 2581 leaves 23 h 41 after OO 377 arrives on the timetable: more than half a day, so not a connection we count.