AA 1775 then AA 1916 at Charlotte
Richmond → Charlotte → Las Vegas
Timetable, Charlotte time
10:35AA 1775 from Richmond at the gate
18:17AA 1916 to Las Vegas leaves the gate
7 h 42 apart on the timetable
The last days
AA 1775 and AA 1916 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.