AA 2001 then UA 1079 at Charlotte
Austin → Charlotte → Washington
Timetable, Charlotte time
15:04AA 2001 from Austin at the gate
19:55UA 1079 to Washington leaves the gate
4 h 51 apart on the timetable
The last days
AA 2001 and UA 1079 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.