CV 251 then AA 3498 at O'Hare
Anchorage → Chicago → Tulsa
Timetable, Chicago time
19:00CV 251 from Anchorage at the gate
08:10AA 3498 to Tulsa leaves the gate
13 h 10 apart on the timetable, overnight
AA 3498 leaves 13 h 10 after CV 251 arrives on the timetable: more than half a day, so not a connection we count.