AA 643 then MQ 4251 at O'Hare
Los Angeles → Chicago → Sioux Falls
Timetable, Chicago time
17:59AA 643 from Los Angeles at the gate
23:39MQ 4251 to Sioux Falls leaves the gate
5 h 40 apart on the timetable
The last days
AA 643 and MQ 4251 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 Sioux Falls
No later flight to Sioux Falls on the timetable.