UA 2091 then DL 796 at O'Hare
San Francisco → Chicago → Atlanta
Timetable, Chicago time
13:01UA 2091 from San Francisco at the gate
15:00DL 796 to Atlanta leaves the gate
1 h 59 apart on the timetable
Today
From the airport’s board at 05:27 Chicago time
13:01UA 2091 is cancelled
15:00DL 796 due to leave, no estimate yet
The last days
UA 2091 and DL 796 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.