UA 2842 then AA 3740 at DFW
San Francisco → Dallas-Fort Worth → Acapulco
Timetable, Dallas-Fort Worth time
15:49UA 2842 from San Francisco at the gate
09:45AA 3740 to Acapulco leaves the gate
17 h 56 apart on the timetable, overnight
AA 3740 leaves 17 h 56 after UA 2842 arrives on the timetable: more than half a day, so not a connection we count.