DL 9923 then B6 188 at LAX
Tucson → Los Angeles → Boston
Timetable, Los Angeles time
13:02DL 9923 from Tucson at the gate
20:30B6 188 to Boston leaves the gate
7 h 28 apart on the timetable
The last days
DL 9923 and B6 188 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.