UA 1970 then AA 2387 at San Francisco
Cleveland → San Francisco → Dallas-Fort Worth
Timetable, San Francisco time
21:45UA 1970 from Cleveland at the gatealso VA 8489, NZ 9046, OZ 9526
14:01AA 2387 to Dallas-Fort Worth leaves the gatealso QF 3158, IB 4166, G3 6173, RJ 7624
16 h 16 apart on the timetable, overnight
AA 2387 leaves 16 h 16 after UA 1970 arrives on the timetable: more than half a day, so not a connection we count.