UA 3911 then UA 5213 at O'Hare
Portland (Oregon) → Chicago → Lincoln
Timetable, Chicago time
17:09UA 3911 from Portland (Oregon) at the gate
12:29UA 5213 to Lincoln leaves the gate
19 h 20 apart on the timetable, overnight
UA 5213 leaves 19 h 20 after UA 3911 arrives on the timetable: more than half a day, so not a connection we count.