AA 642 then 3S 449 at O'Hare
Dallas-Fort Worth → Chicago → Frankfurt am Main
Timetable, Chicago time
13:10AA 642 from Dallas-Fort Worth at the gate
17:103S 449 to Frankfurt am Main leaves the gate
4 h apart on the timetable
The last days
AA 642 and 3S 449 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.