WN 1817 then DL 437 at LAX
Tucson → Los Angeles → Boston
Timetable, Los Angeles time
11:20WN 1817 from Tucson at the gate
10:59DL 437 to Boston leaves the gate
23 h 39 apart on the timetable, overnight
DL 437 leaves 23 h 39 after WN 1817 arrives on the timetable: more than half a day, so not a connection we count.