All pilots have a “base” or “domicile” from which they start their trips. Some common bases are New York (LaGuardia, Kennedy, and Newark); Chicago, Ill.; Houston, Texas; Los Angeles, Calif.; and Seattle, Wash., to name just a few.
Fee-for-departure, or commonly referred to as “regional” airlines, generally fly shorter routes to smaller markets, such as Chicago O’Hare to Columbus, Ohio. Fee-for-departure airlines generally cover a large portion of North America, from Canada to Mexico and the Caribbean and the lower 48.
Major airlines like Delta Air Lines and United Airlines fly domestically, or within the United States, but generally fly larger planes on longer routes to larger cities. Major airlines also fly internationally, such as New York JFK to London Heathrow.