A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you're ready. Get promo code and enjoy heavy discounts on MEM to MIA flights. Fares listed may be Basic Economy, which class is subject to additional terms and conditions. This is the average non-stop flight time based upon historical flights for this route. However, this depends on the date you are flying so please check with the full flight schedule above to see. all Federal Express (FedEx) flights from Memphis (MEM) to Miami (MIA). This is the average non-stop flight time based upon historical flights for this route. Miami is the airport most travelers will use when flying to Miami from Memphis. Prices and availability are subject to change. High season is considered to be November, December and January. Prices and availability subject to change.