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