UA 2809 then AA 2826 at DFW
Chicago O'Hare → Dallas-Fort Worth → Miami
Timetable, Dallas-Fort Worth time
13:31UA 2809 from Chicago O'Hare at the gate
08:30AA 2826 to Miami leaves the gate
18 h 59 apart on the timetable, overnight
AA 2826 leaves 18 h 59 after UA 2809 arrives on the timetable: more than half a day, so not a connection we count.