F9 4949 then WN 3171 at Phoenix
Salt Lake City → Phoenix → Seattle
Timetable, Phoenix time
19:28F9 4949 from Salt Lake City at the gate
15:55WN 3171 to Seattle leaves the gate
20 h 27 apart on the timetable, overnight
WN 3171 leaves 20 h 27 after F9 4949 arrives on the timetable: more than half a day, so not a connection we count.