Northwest Airlines no longer exists. This carrier, once a major one in the United States, merged with Delta Airlines in late 2008. Today, the Northwest Airlines name has disappeared, and the company's Web site now automatically routes visitors to the online home of Delta Airlines. This means that Northwest's WorldPerks frequent-flyer program no longer exists. Delta Airlines, the new home to Northwest, though, does offer its own frequent-flyer program, SkyMiles. And it offers many of the same perks and benefits that the WorldPerks' program once offered. Read More
