Mohamed Boudiaf International Airport — Constantine, Algeria

Perched near a city famous for gorge-spanning bridges, CZL gave northeastern Algeria a modern gateway to replace an older, cramped airfield. The airport honors Mohamed Boudiaf, the Algerian head of state assassinated in 1992 only months into his term while trying to steady the country through political crisis. Constantine itself ranks among Algeria's oldest cities, having served as a Roman stronghold and later a hub of Ottoman administration before French colonial rule reshaped it. Today CZL mainly links the region to domestic points like Algiers and Oran, plus routes toward France, home to a large Algerian diaspora that keeps demand steady. Limestone plateaus and deep ravines surround the approach paths, and the terminal itself reflects the plain, functional style common to Algeria's regional airports built in recent decades.