DL 1597 then DL 1825 at Atlanta
San Diego → Atlanta → Tri-Cities
Timetable, Atlanta time
05:37DL 1597 from San Diego at the gate
13:45DL 1825 to Tri-Cities leaves the gate
8 h 08 apart on the timetable
The last days
DL 1597 and DL 1825 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.