Get Certified Refurbished MacBook Airs with prices starting at $715 plus free shipping at the Apple Online Store. The lowest deal is this 11.6" MacBook Air 1.6GHz Dual-core Intel Core i5 (March 2015 release) for $759, with a 1.6GHz Intel Core i5 processor with 4GB of memory and a 128GB flash storage drive. This was the lowest price we found for a refurbished model. Plus, all Mac refurbs include the same one year, extendable warranty as new Macs. Sales tax is charged in most states.