F9 3075 then YV 3992 at Charlotte
Baltimore → Charlotte → Houston
Timetable, Charlotte time
13:21F9 3075 from Baltimore at the gate
18:03YV 3992 to Houston leaves the gate
4 h 42 apart on the timetable
The last days
F9 3075 and YV 3992 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.