"It's been a very successful concept and certainly put us on the map but it's the right time for someone else to pick it up and run with it.
"We are a very small company and we don't have the ability to run a base in Auckland which is really needed to take the market to the next stage.
"Flight Hauraki is Auckland-based and has the resources to nail that business. We absolutely wish them all the best. We already have quite a synergy and will continue to work closely together."
Flight Hauraki director Paul McSherry said his company owned and leased aircraft for a growing operation, particularly around the Hauraki Gulf, including Gt Barrier Is, and ran charter flights for government and private organisations.
Two planes would deliver the service bought from Salt Air.
He said Flight Hauraki intended running similar services to Salt Air's, operating flights into Northland twice-daily, Monday to Friday. Salt Air would continue offering its scenic day tours from Auckland using the Flight Hauraki service.
The sale is effective from November 1.