AA 5101 then UA 3310 at Charlotte
Washington → Charlotte → Pittsburgh
Timetable, Charlotte time
10:50AA 5101 from Washington at the gate
18:15UA 3310 to Pittsburgh leaves the gate
7 h 25 apart on the timetable
The last days
AA 5101 and UA 3310 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.