UA 2603 then CM 9929 at San Francisco
Toronto → San Francisco → Los Angeles
Timetable, San Francisco time
09:29UA 2603 from Toronto at the gatealso AC 4105
14:30CM 9929 to Los Angeles leaves the gate
5 h 01 apart on the timetable
The last days
UA 2603 and CM 9929 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.