Aktarer’s website is still open at this time. Skiplagged.com works on the principal of using a layover city as your final stop. You may need to fly into Omaha, Nebraska from New York. Skiplagged may find that it would be cheaper to buy a flight to Las Vegas with a layover in Omaha where a ticket straight to Omaha would be more expensive.
This system will only work if you are only taking carry on bags. Checked bags would end up in Vegas, but all in all, this is a great way to save money on airline tickets.
If you need tickets cheap, you may want to jump on skiplagged quick; United and Orbitz are trying hard to shut it down.