AA 977 then AA 1599 at DFW
Harrisburg → Dallas-Fort Worth → Jacksonville
Timetable, Dallas-Fort Worth time
09:03AA 977 from Harrisburg at the gate
09:37AA 1599 to Jacksonville leaves the gate
34 min apart on the timetable
The last days
AA 977 and AA 1599 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.