If you're looking to skip the big three when flying in our out of New York City this holiday, the Long Island Rail Road has launched a deal to make it easier to get to the Long Island MacArthur Airport.
If you're too far from Long Island, the Stewart International Airport in Newburgh is the other option, which government official have been pushing as the fourth airport alternative.
Stewart is currently served by Delta Connection, jetBlue, Northwest and US Airways Express.
Also see National Geographic's travel blog, which has holiday travel suggestions including how to best book the cheap buses.
If you're looking at cheap buses, also not that Greyhound has just launched a sale with some routes discounted by 75 percent.