AA 2545 then UA 5209 at Salt Lake City
Chicago O'Hare → Salt Lake City → Denver
Timetable, Salt Lake City time
23:59AA 2545 from Chicago O'Hare at the gate
07:10UA 5209 to Denver leaves the gate
7 h 11 apart on the timetable, overnight
The last days
AA 2545 and UA 5209 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.