WN 1968 then UA 783 at Denver
Spokane → Denver → Mexico City
Timetable, Denver time
10:00WN 1968 from Spokane at the gate
09:41UA 783 to Mexico City leaves the gate
23 h 41 apart on the timetable, overnight
UA 783 leaves 23 h 41 after WN 1968 arrives on the timetable: more than half a day, so not a connection we count.