NYC to Atlantic City Express was scheduled to begin in late 2007 or early 2008. Details are being finalized for the new service, dubbed "ACES" for Atlantic City Express Service. But in the current scenario, the trains would run nonstop on the Northeast Corridor tracks from New York to just north of Philadelphia, then head east and continue nonstop to Atlantic City.
Fares have not been finalized, according to Cipollini, but he said they will be competitive with Amtrak's Acela service between New York and Philadelphia, which currently costs between $76 and $112 each way. There will likely be a two- or three-tier pricing structure that will reflect modifications to the train interiors such as added food and beverage service and roomier seating.
So far I cant find any exact date to when it will start, should be soon!
Try using the "build your trip" flight comparsion tool here:
Airlines To Atlantic City it will
search multiple websites and get you the best price.
Links of interest:
Atlantic City Casinos Atlantic City Atlantic City Hotels