Pasadena, Azusa, Monrovia, Arcadia, South Pasadena, Highland Park, Boyle Heights, and East L.A.:
Gold Line to Union Station - transfer to El Monte Busway/Alameda - Union Stations bus stop - take Metro Silver Line bus to 37th St. Transitway Station - Metro Bus 81 southbound to Expo Park/USC Station.
Redondo Beach, The Second, South L.A., and Lakewood:
Green Line to the Harbor Fwy Station - transfer to the Silver Line - exit at 37th Street / USC Station, walk two blocks west toward Exposition Blvd / USC. $5 round-trip : Green to Silver line is $ 1.75 one way + $ 0.75 transfer (TAP card only.) Silver line to Green Line is $ 2.50 (cash or 'TAP card')