AA 642 then UA 2207 at O'Hare
Dallas-Fort Worth → Chicago → Omaha
Timetable, Chicago time
13:10AA 642 from Dallas-Fort Worth at the gate
16:00UA 2207 to Omaha leaves the gate
2 h 50 apart on the timetable
The last days
AA 642 and UA 2207 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.