Hartsfield-Jackson International Airport is issuing about $440 million worth of airport bonds in a refinancing, yielding a $99 million benefit.

The Atlanta City Council voted Thursday to approve the prices for the refinancing, which will secure better rates for bonds from 2000. The bonds were originally issued to pay for airfield and terminal projects.

The bond deal will close Aug. 4, saving about $49 million from the refinancing and freeing up about $50 million held in reserves. That will allow the airport to increase payments for ongoing airport projects with cash, reducing the need for future funding, according to Hartsfield-Jackson.