DL 635 then DL 4100 at Atlanta
San Francisco → Atlanta → Shreveport
Timetable, Atlanta time
05:16DL 635 from San Francisco at the gate
12:15DL 4100 to Shreveport leaves the gate
6 h 59 apart on the timetable
The last days
DL 635 and DL 4100 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.