AA 6423 then UA 1394 at O'Hare
Lincoln → Chicago → San Antonio
Timetable, Chicago time
07:58AA 6423 from Lincoln at the gate
20:30UA 1394 to San Antonio leaves the gate
12 h 32 apart on the timetable
UA 1394 leaves 12 h 32 after AA 6423 arrives on the timetable: more than half a day, so not a connection we count.