UA 2276 then DL 3576 at LAX
Washington → Los Angeles → Spokane
Timetable, Los Angeles time
20:45UA 2276 from Washington at the gate
20:37DL 3576 to Spokane leaves the gate
23 h 52 apart on the timetable, overnight
DL 3576 leaves 23 h 52 after UA 2276 arrives on the timetable: more than half a day, so not a connection we count.