AA 3913 then AA 1770 at DFW
Springfield → Dallas-Fort Worth → Washington National
Timetable, Dallas-Fort Worth time
11:09AA 3913 from Springfield at the gate
12:06AA 1770 to Washington National leaves the gate
57 min apart on the timetable
The last days
AA 3913 and AA 1770 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.