You don't have to spend a lot of green to go green when you're traveling to or from an airport. Here are transportation options for some U.S. airports, compiled with help from CheapFlights.com and visitor bureaus. Fares are less than $10.
—Flyaway buses (www.lawa.org/FlyAway) offer daily scheduled service from each terminal and to and from Van Nuys, Union Station, Westwood, Santa Monica and Hollywood. A Long Beach location and a second Van Nuys location for the Orange line are expected in December.
These buses depart LAX from the "FlyAway/Long Distance Vans" sign in front of...