UA 4530 then FX 9791 at O'Hare
Chattanooga → Chicago → Anchorage
Timetable, Chicago time
19:05UA 4530 from Chattanooga at the gate
04:00FX 9791 to Anchorage leaves the gate
8 h 55 apart on the timetable, overnight
The last days
UA 4530 and FX 9791 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.