Hello emma jones, our shop is based in Hong Kong. If you order standard size now and use the fastest shipping method (Premium Express, 3-6 days shipping time), it will reach you around mid-November. We cannot guarantee 100% that costume will make it before her birthday. Hope you understand. ^_^
*All shipping information (including methods, cost & estimated delivered date) will be shown in order page, before payment; you can pay extra cost to upgrade shipping method there.
*Please remember to mark down the date (you need it) in the order form when you order it. :)