AA 2178 then UA 1382 at Salt Lake City
Dallas-Fort Worth → Salt Lake City → Chicago O'Hare
Timetable, Salt Lake City time
10:17AA 2178 from Dallas-Fort Worth at the gate
12:35UA 1382 to Chicago O'Hare leaves the gate
2 h 18 apart on the timetable
The last days
AA 2178 and UA 1382 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.