DL 2173 then DL 907 at Salt Lake City
Boise → Salt Lake City → Atlanta
Timetable, Salt Lake City time
07:15DL 2173 from Boise at the gate
08:17DL 907 to Atlanta leaves the gate
1 h 02 apart on the timetable
The last days
DL 2173 and DL 907 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.