Yes, in the Saint Louis Metro Area. You can even have same day delivery if the order is placed by noon.
Out of the Saint Louis area unfortunately we cannot guarantee delivery on Sundays as it is not a standard delivery day for many florists. However, we are open and will do our best. In many cases we can get this done for you. Otherwise, Monday will have to be an option. (We make every effort to get your order out on the day you requested. If it can be done we will make it happen.)