Travelers seeking United Airlines most premium experience will find themselves in the carriers Polaris business class. This experience allows passengers to enjoy the best that United has to offer, from the beginning of their trip at the airport and throughout their journey to their final destination. Polaris business class is featured on most of Uniteds widebody fleet and select narrowbody planes. Polaris, however, is a step up from Uniteds domestic first product, which is outfitted on most of its single-aisle aircraft.