The most frequently used airline companies from Washington to New York are generally
Delta Air Lines,
Scandinavian Airlines,
Virgin Atlantic,
American Airlines,
Iberia,
Royal Air Maroc,
KLM,
Gojet Airlines,
JetBlue,
Malaysia Airlines,
Cathay Pacific,
Royal Jordanian,
Pinnacle Airlines,
Gol Linhas Aereas,
United Airlines,
Korean Air,
Midwest Airlines,
Aerolineas Argentinas,
Alitalia,
Lan Airlines,
China Airlines,
All Nippon Airways,
Ethiopian Airlines,
TAP Portugal,
Westjet,
Aeromexico,
Japan Airlines,
Avianca,
Kenya Airways,
Air Senegal,
China Eastern Airlines,
British Airways
are companies.