UA 1385 then CM 1885 at San Francisco
Baltimore → San Francisco → Las Vegas
Timetable, San Francisco time
17:38UA 1385 from Baltimore at the gatealso VA 8051
21:10CM 1885 to Las Vegas leaves the gatealso LX 3127
3 h 32 apart on the timetable
The last days
UA 1385 and CM 1885 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.