Unmanned aircraft could deliver packages that weigh up to 2.3 kilograms to homes or about 86 per cent of the items the company currently delivers. The drones could fly within 16 kilometres of the company's distribution centres, covering a significant portion of the population in urban areas.
A video from the Seattle-based company showed a drone labelled "Amazon PrimeAir" taking a package from a distribution centre to a customer's front yard.
The drones would be autonomous, flying to programmed GPS co-ordinates.
"The hard part here is putting in all the redundancy, all the reliability, all the systems you need to say — look, this thing can't land on somebody's head while they're walking around their neighbourhood."
Bezos said the drones couldn't be put in place until 2015 because it would take that long to work out regulations with the U.S. Federal Aviation Administration. He said he optimistically hopes the drones could be delivering packages in four or five years.
"It will work and it will happen and it's going to be a lot of fun," he said.
The FAA currently forbids the use of commercial drones. That is expected to change in 2015 when its Drones Act, which was passed last year, will require commercial jets and drones to share the same air space.
In Canada, commercial drones have been allowed since 2008, but current laws require commercial operators to file a Special Flight Operation Certificate with Transport Canada for every flight.