AA 3735 then UA 1994 at DFW
College Station → Dallas-Fort Worth → Denver
Timetable, Dallas-Fort Worth time
21:23AA 3735 from College Station at the gate
16:55UA 1994 to Denver leaves the gate
19 h 32 apart on the timetable, overnight
UA 1994 leaves 19 h 32 after AA 3735 arrives on the timetable: more than half a day, so not a connection we count.