CM 1131 then DL 977 at San Francisco
Eugene → San Francisco → Boston
Timetable, San Francisco time
21:11CM 1131 from Eugene at the gatealso AV 2270
12:55DL 977 to Boston leaves the gatealso KE 6731
15 h 44 apart on the timetable, overnight
DL 977 leaves 15 h 44 after CM 1131 arrives on the timetable: more than half a day, so not a connection we count.