UA 1852 then AA 2753 at DFW
San Francisco → Dallas-Fort Worth → Valparaiso
Timetable, Dallas-Fort Worth time
05:34UA 1852 from San Francisco at the gate
19:24AA 2753 to Valparaiso leaves the gate
13 h 50 apart on the timetable
AA 2753 leaves 13 h 50 after UA 1852 arrives on the timetable: more than half a day, so not a connection we count.