AA 3740 then AA 9910 at O'Hare
Sioux Falls → Chicago → Waterloo
Timetable, Chicago time
09:00AA 3740 from Sioux Falls at the gate
17:00AA 9910 to Waterloo leaves the gatealso OO 9910
8 h apart on the timetable
The last days
AA 3740 and AA 9910 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.
Later flights to Waterloo
AA 636422:1513 h 15 after AA 3740 on the timetable