UA 2290 then AA 1355 at DFW
Chicago O'Hare → Dallas-Fort Worth → Oklahoma City
Timetable, Dallas-Fort Worth time
16:21UA 2290 from Chicago O'Hare at the gate
13:11AA 1355 to Oklahoma City leaves the gate
20 h 50 apart on the timetable, overnight
AA 1355 leaves 20 h 50 after UA 2290 arrives on the timetable: more than half a day, so not a connection we count.