The cost of shipping your products from the lab to the customer (and the time it takes to get there) varies depending on what items were ordered, what shipping method was selected by the customer, and where the customer is located in relation to the lab.
You can easily reference your lab's shipping rates by selecting Price Sheets under the Store tab of your Studio Panel, selecting a price sheet, and selecting "Shipping Rates" from the left column of links.
Want to know more about all 3 shipping options within PhotoDay? Check out this article.