DL 912 then 1I 563 at Atlanta
Salt Lake City → Atlanta → San Francisco
Timetable, Atlanta time
05:15DL 912 from Salt Lake City at the gate
10:011I 563 to San Francisco leaves the gate
4 h 46 apart on the timetable
The last days
DL 912 and 1I 563 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.