AA 3111 then UA 4789 at O'Hare
St Louis → Chicago → Fargo
Timetable, Chicago time
13:00AA 3111 from St Louis at the gate
19:45UA 4789 to Fargo leaves the gate
6 h 45 apart on the timetable
The last days
AA 3111 and UA 4789 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.