*flypast*

n. 1. the upper level of a crossing of two highways at different levels; same as flyover; called in the United States an overpass. [ Brit. ]
Syn. -- overpass, flyover. [ WordNet 1.5 ]

2. a low-altitude flight (usually of military aircraft) over spectators on the ground.
Syn. -- flyover. [ WordNet 1.5 ]