DL 5813 then WN 296 at Boston
Baltimore → Boston → Denver
Timetable, Boston time
07:40DL 5813 from Baltimore at the gate
10:40WN 296 to Denver leaves the gate
3 h apart on the timetable
The last days
DL 5813 and WN 296 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.