UA 2154 then WN 3107 at Denver
Boise → Denver → Santa Barbara
Timetable, Denver time
08:28UA 2154 from Boise at the gate
20:50WN 3107 to Santa Barbara leaves the gate
12 h 22 apart on the timetable
WN 3107 leaves 12 h 22 after UA 2154 arrives on the timetable: more than half a day, so not a connection we count.