DL 8949 then UA 3752 at Dulles
Minneapolis → Washington → Oklahoma City
Timetable, Washington time
15:16DL 8949 from Minneapolis at the gate
09:40UA 3752 to Oklahoma City leaves the gate
18 h 24 apart on the timetable, overnight
UA 3752 leaves 18 h 24 after DL 8949 arrives on the timetable: more than half a day, so not a connection we count.