You can find details about US Airline Companies in this page. American Airlines, of course, is the leading airline companies in USA but there are many different airline companies in USA. We have 13 US Airlines in our list. You can find brief information about Airline Companies in USA, You can see logos of these airlines and you can go their websites via our internal links. Here is the list of Airline Companies in USA; Alaska Airlines, Allegiant Air, American Airlines, Delta Airlines, Frontier, Hawaiian Airlines, JetBlue Airways, Southwest Airlines, Spirit Airlines, Sun Country, United Airlines, Virgin America, Silver Airways. How many airlines are there in usa? There are many airlines in the USA, in this page we have only listed the major airlines in the USA . Hawaiian Airlines, Silver Airways, Virgin America, Sun Country and Alaska Horizon Airlines are the regional carriers in USA. American Airlines, United Airlines and Delta Air Lines are the majors airline companies in USA. Frontier Airlines, Allegiant Air, Spirit Airlines, Southwest Airlines and JetBlue Airways are the low cost carriers in USA. You can find info about fleet or planes of Alaska Horizon Airlines, Frontier Airlines, Delta Air, United Airlines, American Airlines, Silver Airways. Aircraft Fleet Facts Information and Pictures of US Frontier, Delta Air, United Airlines, Alaska Horizon Airlines and American Airlines.