AA 3487 then K4 221 at O'Hare
Missoula → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
18:25AA 3487 from Missoula at the gate
21:20K4 221 to Cincinnati Northern Kentucky leaves the gate
2 h 55 apart on the timetable
The last days
AA 3487 and K4 221 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.