AA 4135 then FX 9791 at O'Hare
Tulsa → Chicago → Anchorage
Timetable, Chicago time
12:41AA 4135 from Tulsa at the gate
04:00FX 9791 to Anchorage leaves the gate
15 h 19 apart on the timetable, overnight
FX 9791 leaves 15 h 19 after AA 4135 arrives on the timetable: more than half a day, so not a connection we count.