UA 4189 then DL 1707 at Detroit
Newark → Detroit → Boston
Timetable, Detroit time
15:23UA 4189 from Newark at the gate
17:52DL 1707 to Boston leaves the gate
2 h 29 apart on the timetable
The last days
UA 4189 and DL 1707 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.
Later flights to Boston
DL 118721:586 h 35 after UA 4189 on the timetable