You take the local bus which departs at the left side of the airport exit. It brings you to the bus and train station in the city where you find one bus leaving at 11:45 am. You arrive at 7 pm. The CTM buses are faster and more comfortable but they don’t stop in Mirleft. In this case you take the bus untill Tiznit and you continue with a “Grand-Taxi”. ( Attention: this buses leave often at the CTM-Bus-Station.