AA 1721 then AA 5645 at Charlotte
Myrtle Beach → Charlotte → Pittsburgh
Timetable, Charlotte time
08:07AA 1721 from Myrtle Beach at the gate
11:30AA 5645 to Pittsburgh leaves the gate
3 h 23 apart on the timetable
The last days
AA 1721 and AA 5645 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.