AV 2055 then DL 6939 at San Francisco
Monterey → San Francisco → Calgary
Timetable, San Francisco time
20:51AV 2055 from Monterey at the gatealso UA 4633, LH 8529
16:40DL 6939 to Calgary leaves the gate
19 h 49 apart on the timetable, overnight
DL 6939 leaves 19 h 49 after AV 2055 arrives on the timetable: more than half a day, so not a connection we count.