UA 441 then AA 3449 at DFW
Chicago O'Hare → Dallas-Fort Worth → Tallahassee
Timetable, Dallas-Fort Worth time
14:38UA 441 from Chicago O'Hare at the gate
12:19AA 3449 to Tallahassee leaves the gate
21 h 41 apart on the timetable, overnight
AA 3449 leaves 21 h 41 after UA 441 arrives on the timetable: more than half a day, so not a connection we count.