Detroit, MI to University of Dallas buses and trains from $159

Or, see buses and trains from University of Dallas to Detroit, MI.
Here are some trips other travelers have found on Routefriend.
$159
1d 6h
1 stop
Amtrak
$209
1d 13h
3 stops
Greyhound
$291
1d 19h
3 stops
Greyhound Amtrak