The most frequently used airline companies from Los Angeles to Seattle are generally
Qantas Airways,
Cathay Pacific,
Air Tahiti Nui,
V Australia,
Icelandair,
Aeromexico,
Finnair,
KLM,
Air New Zealand,
China Airlines,
Singapore Airlines,
Aer Lingus,
East Star Airlines,
Air France,
Avianca,
Korean Air,
El Al Israel Airlines,
British Airways,
Delta Air Lines,
Qatar Airways,
Virgin Atlantic,
Iberia,
Alaska Airlines,
Lan Airlines,
Alitalia
are companies.