CM 1131 then SQ 1550 at San Francisco
Eugene → San Francisco → Boston
Timetable, San Francisco time
21:05CM 1131 from Eugene at the gatealso AV 2270
10:44SQ 1550 to Boston leaves the gate
13 h 39 apart on the timetable, overnight
SQ 1550 leaves 13 h 39 after CM 1131 arrives on the timetable: more than half a day, so not a connection we count.