1. American Airlines: American Airlines provides direct flights to New York from various major cities across the US, such as Dallas, Los Angeles, Miami, and Boston.
2. Delta Air Lines: Delta operates numerous nonstop flights to New York's John F. Kennedy International Airport (JFK) from cities like Los Angeles, Atlanta, Seattle, and Detroit.
3. United Airlines: United offers multiple direct flights to both JFK and Newark Liberty International Airport (EWR) from destinations like San Francisco, Denver, Washington, D.C., and Houston.
4. Spirit Airlines: Spirit Airlines is a low-cost carrier that serves several cities in the US with direct flights to New York, including Chicago, Orlando, Fort Lauderdale, and Las Vegas.
5. JetBlue Airways: JetBlue is a major discount airline with extensive service to New York from different points in the US, including Boston, Chicago, Fort Lauderdale, and Los Angeles.
6. Southwest Airlines: Southwest operates many direct flights to New York from cities like Chicago, Nashville, Austin, and Washington, D.C.