B6 993 then WN 1037 at Denver
Boston → Denver → Phoenix Sky Harbor
Timetable, Denver time
13:07B6 993 from Boston at the gate
06:00WN 1037 to Phoenix Sky Harbor leaves the gate
16 h 53 apart on the timetable, overnight
WN 1037 leaves 16 h 53 after B6 993 arrives on the timetable: more than half a day, so not a connection we count.