AA 6243 then AS 637 at Phoenix
Sioux Falls → Phoenix → Seattle
Timetable, Phoenix time
10:20AA 6243 from Sioux Falls at the gate
11:35AS 637 to Seattle leaves the gate
1 h 15 apart on the timetable
The last days
AA 6243 and AS 637 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.