AA 4123 then AA 6238 at DFW
Grand Junction → Dallas-Fort Worth → Amarillo
Timetable, Dallas-Fort Worth time
16:25AA 4123 from Grand Junction at the gate
08:25AA 6238 to Amarillo leaves the gate
16 h apart on the timetable, overnight
AA 6238 leaves 16 h after AA 4123 arrives on the timetable: more than half a day, so not a connection we count.