CM 1131 then UA 1372 at San Francisco
Eugene → San Francisco → Boston
Timetable, San Francisco time
21:05CM 1131 from Eugene at the gatealso AV 2270
12:45UA 1372 to Boston leaves the gatealso VA 8305, NZ 9010
15 h 40 apart on the timetable, overnight
UA 1372 leaves 15 h 40 after CM 1131 arrives on the timetable: more than half a day, so not a connection we count.