WN 1872 then DL 1697 at Phoenix
Omaha → Phoenix → Boston
Timetable, Phoenix time
07:20WN 1872 from Omaha at the gate
23:20DL 1697 to Boston leaves the gate
16 h apart on the timetable
DL 1697 leaves 16 h after WN 1872 arrives on the timetable: more than half a day, so not a connection we count.