UA 2106 then AV 2036 at San Francisco
Chicago O'Hare → San Francisco → Seattle
Timetable, San Francisco time
00:53UA 2106 from Chicago O'Hare at the gatealso AC 4373, LH 8778, NZ 9329
16:17AV 2036 to Seattle leaves the gate
15 h 24 apart on the timetable
AV 2036 leaves 15 h 24 after UA 2106 arrives on the timetable: more than half a day, so not a connection we count.