New Orleans, LA to Denver, CO buses and trains from $142

Or, see buses and trains from Denver, CO to New Orleans, LA.
Here are some trips other travelers have found on Routefriend.
$142
1d 7h
3 stops
Greyhound
$142
1d 5h
2 stops
Greyhound
$306
1d 18h
1 stop
Amtrak
$154
2d 5h
4 stops
Amtrak Greyhound
$386
1d 23h
3 stops
Greyhound Amtrak
$412
1d 23h
3 stops
Greyhound Amtrak