The most frequently used airline companies from Los Angeles to San Francisco are generally
Virgin Atlantic,
Alaska Airlines,
Korean Air,
JetBlue,
All Nippon Airways,
China Airlines,
Qatar Airways,
Emirates,
V Australia,
Japan Airlines,
Skywest Airlines,
El Al Israel Airlines,
Finnair,
Air China,
Asiana Airlines,
United Airlines,
Delta Air Lines,
Iberia,
Westjet,
Avianca,
Lan Airlines,
British Airways,
Air New Zealand,
Singapore Airlines,
Copa Airlines,
Hawaiian Airlines
are companies.