AA 6376 then AA 6238 at DFW
Garden City → Dallas-Fort Worth → Amarillo
Timetable, Dallas-Fort Worth time
20:08AA 6376 from Garden City at the gate
08:25AA 6238 to Amarillo leaves the gate
12 h 17 apart on the timetable, overnight
AA 6238 leaves 12 h 17 after AA 6376 arrives on the timetable: more than half a day, so not a connection we count.