Corrected entry: The helicopter that they use to rescue "dad" gets its windows entirely shot out. That is why the helicopter is put on autopilot so that the prison tower can be blown up. Later, everyone is sitting in the back of the helicopter talking and all the windows are intact.
Corrected entry: Black Widow asks her civilian contractor to procure a jet for her. All he could find was a beat up old helicopter. Which is exactly what she and her sister needed to get Alexei out of prison. They could not have done it with a jet. If they had got a jet they still would have needed a helicopter. So much for that.