K4 523 then FX 1380 at O'Hare
Anchorage → Chicago → Memphis
Timetable, Chicago time
20:33K4 523 from Anchorage at the gate
21:30FX 1380 to Memphis leaves the gate
57 min apart on the timetable
The last days
K4 523 and FX 1380 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.