AA 6376 then AA 2312 at DFW
Garden City → Dallas-Fort Worth → Tulsa
Timetable, Dallas-Fort Worth time
20:08AA 6376 from Garden City at the gate
18:11AA 2312 to Tulsa leaves the gate
22 h 03 apart on the timetable, overnight
AA 2312 leaves 22 h 03 after AA 6376 arrives on the timetable: more than half a day, so not a connection we count.