How Long does it usually take standard flat rate shipping from Maryland to Central Florida?|134963

I ordered something recently from Maryland and I wanted to know approximately how many days should it take till I receive my package. This is already assuming the item has been shipped.

From about 5 to 7 working days. You need to clarify what you mean by flat rate shipping, though. Do you mean flat rate, Priority mail by the US postal service? Or is a UPS shipment?