Los Angeles - Seattle arası en sık kullanılanan havayolu firmaları genelde
Qatar Airways,
British Airways,
Delta Air Lines,
V Australia,
Iberia,
Alaska Airlines,
Lan Airlines,
Qantas Airways,
Alitalia,
Cathay Pacific,
Air Tahiti Nui,
East Star Airlines,
Icelandair,
KLM,
Aeromexico,
Finnair,
Air New Zealand,
China Airlines,
Singapore Airlines,
Aer Lingus,
Virgin Atlantic,
Korean Air,
Air France,
Avianca,
El Al Israel Airlines
firmalarıdır.