Helping hand: William and his wife Kate help prepare care packages for military children
Packed out: William made the audience laugh when he joked that his brother, Harry, was a 'low-flying Apache very average brother
Before heading to the airport they stopped at the charity, the Tusk Trust, where they met author Kristin Gore, actress Reece Witherspoon and heiress Jessica de Rothschild
The crowds of public weren't as big in the U.S. as they were in Canada, but there were sufficient people to make the couple feel welcome
The couple were escorted to Los Angeles airport by a police motorcade with several motorbikes closing roads and police cars ensuring safe passage