AA 1892 then WN 210 at Atlanta
Philadelphia → Atlanta → Washington National
Timetable, Atlanta time
00:16AA 1892 from Philadelphia at the gate
10:15WN 210 to Washington National leaves the gate
9 h 59 apart on the timetable
The last days
AA 1892 and WN 210 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.