Amazon Prime will soon offer free one-day shipping to customers who spend more than $35 on an order.
Speaking to Reuters, head of Prime, Greg Greeley, said that same-day delivery will soon be available in San Diego and Tampa Bay.
"We know same-day delivery volumes will grow dramatically now that we are making it free," he said.
Prime has been the backbone of the online marketplace. It was first launched 10 years ago, offering free two-day shipping. However, sign-ups increased by 50 per cent last year, driven by the one-day shipping option.
Amazon Prime one-day is already available in New York, Seattle, Atlanta, San Francisco, Boston, and Philadelphia. Its reach is expected to grow.