AA 2253 then BA 5600 at San Francisco
Chicago O'Hare → San Francisco → Dallas-Fort Worth
Timetable, San Francisco time
16:22AA 2253 from Chicago O'Hare at the gatealso QF 4756
23:23BA 5600 to Dallas-Fort Worth leaves the gatealso CX 7582
7 h 01 apart on the timetable
The last days
AA 2253 and BA 5600 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.