The Sheffield helicopter base used by the National Police Air Service is set to close on February 16, next year.
South Yorkshire has been served by NPAS since April 2013, with a helicopter based at Sheffield 10 hours a day.
For the remaining 14 hours a day helicopters have been sent to the county from West Yorkshire, Humberside and Derbyshire.
But to cuts costs the base at the former Sheffield Airport is to close.
Police chiefs are in talks with NPAS about future air support in the county.