The LAX FlyAway Bus takes passengers to Union Station (Downtown Los Angeles/Amtrak) for $7. Board buses on the Arrivals Level (the lower one) in front of each terminal under the green "FlyAway, Buses and Long Distance Vans" signs. In addition to Downtown, the service goes to the San Fernando Valley, West Los Angeles, and the convention center.
Other companies serving the greater Los Angeles area include Grayline, which goes to Anaheim in Orange County; and Santa Barbara Airbus.