AA 1991 then DL 2226 at O'Hare
Salt Lake City → Chicago → New York LaGuardia
Timetable, Chicago time
16:05AA 1991 from Salt Lake City at the gate
17:50DL 2226 to New York LaGuardia leaves the gate
1 h 45 apart on the timetable
The last days
AA 1991 and DL 2226 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.