It has been bought for an undisclosed sum by Regional and City Airports.
The Daily Echo revealed on Saturday that the sale by the Manchester Airport Group to RCA was imminent.
RCA's owner, Sir Peter Rigby has been a frequent visitor to Bournemouth Airport in recent months.
The move could herald a significant expansion in holiday flights and destinations and a renewed drive for Bournemouth to be a regional business hub.
MAG has been looking for a buyer for some time after it failed to deliver on its own ambitious, long term plans to generate up to three million passengers a year at Bournemouth.
This was despite a £45m investment almost ten years in a new terminal, arrivals hall and other facilities.
Last year it handled 700,000 passengers, the majority using Ryanair and TUI services.
RCA already has Exeter, Coventry and Norwich airports in its portfolio.
It also has contracts to operate Solent (formerly Daedelus), City of Derry and Blackpool.