Flyers pick the first class flights for easy air travel with SWISS to explore the world. Moreover, there are various routes offered by the Swiss Air First Class, but several routes are the most frequent. New York (JFK) and Miami (MIA) to Zurich (ZRH) and São Paulo (GRU) to Buenos Aires (EZE) are a few of them. In addition, one can pick these routes to fly with SWISS to save time selecting the routes. To know more about it, visit the SWISS official website or read the blog link mentioned above by FaresFirstClass.