F9 3227 then WN 988 at Denver
Houston → Denver → Buffalo
Timetable, Denver time
12:30F9 3227 from Houston at the gate
11:50WN 988 to Buffalo leaves the gate
23 h 20 apart on the timetable, overnight
WN 988 leaves 23 h 20 after F9 3227 arrives on the timetable: more than half a day, so not a connection we count.