Chopper 7 was over the scene at 82nd and Jeffery in South Chicago at about 7 a.m.
A 19-year-old was driving a red Jeep, made a U-turn and slammed into the bus, Chicago police said.
The driver of the jeep and the bus operator were also hurt.
The injured passengers included a 16-year-old girl, four women aged 34, 59, 44 and 27; and a 28-year-old man, police said.
All were taken to area hospitals and are expected to be OK.
No citations were issued, police said.