AM 1 then AA 37 at Madrid
Mexico City → Madrid → Dallas-Fort Worth
Timetable, Madrid time
11:30AM 1 from Mexico City at the gate
10:00AA 37 to Dallas-Fort Worth leaves the gatealso BA 1513, AY 3743, IB 4608
22 h 30 apart on the timetable, overnight
AA 37 leaves 22 h 30 after AM 1 arrives on the timetable: more than half a day, so not a connection we count.