Iran's Land Routes Offer Resilience, Not Replacement for Maritime Blockade

Iran is learning what every landlocked nation knows: when your main door closes, the side entrances matter. But they are not the same door.

For years, Tehran discussed the possibility of redirecting trade northward—through the Caspian Sea, across rail lines into Turkey and Central Asia, down through Pakistan and Iraq. The conversation remained theoretical until the US maritime blockade made it urgent. Now, with southern ports choked off, Economy Minister Ali Madanizadeh traveled to Moscow in late 2025 to press the case for activating those northern borders in earnest. The strategy is not new. The pressure to execute it is.

On paper, Iran's geography offers real options. Seven land neighbors. Access to the Caspian. Rail corridors fanning out toward Russia, Central Asia, Turkey, Iraq, and Pakistan. The northern ports themselves—according to Iranian authorities—hold more than 30 million tons of annual capacity, with less than a third currently in use. The Astara freight terminal on the Azerbaijan border was designed to handle 3.5 to 4 million tons yearly. The Rasht-Astara rail link, still unfinished, represents a bottleneck that could be cleared. Turkey's rail ferries across Lake Van moved 477,000 tons in 2024. The routes exist. The question is whether they can absorb what the southern ports once handled.

They cannot, at least not at comparable cost. A container shipped from China to Iran through the Persian Gulf costs roughly $3,000. The same container overland costs about $12,000. With approximately 2 million containers entering Iran annually through southern ports, a sustained shift to land routes would add roughly $18 billion to the country's annual trading costs. The arithmetic is brutal. A single 50,000-ton shipload, moved by truck instead of vessel, requires around 2,000 truck journeys if each lorry carries 25 tons. Those trucks then sit idle for domestic distribution. Fuel, insurance, warehousing, and border crossing fees accumulate. Low-value goods suffer most—transport becomes a larger fraction of the final price, squeezing margins or pricing goods out of reach.

Grains from Russia and Kazakhstan, medicines, industrial inputs, and regional trade can be rerouted more easily than crude oil. But crude oil is where the real volume lives. A large crude tanker carries 1.5 to 2 million barrels. Replicating that by road would require thousands of tanker trucks. Rail is more efficient but still cannot match the cost, speed, or scale of maritime transport. Pakistan's ports—Karachi, Port Qasim, Gwadar—can help move imports and support regional trade. Iraq can facilitate limited fuel flows. The Caspian region connects Iran to Russia, Kazakhstan, and Azerbaijan. None of these alternatives can replace large-scale crude shipments to Asian buyers. The Goreh-Jask pipeline, built specifically to reduce dependence on the Strait of Hormuz by moving crude to the Gulf of Oman, has operated far below its original capacity. Building the infrastructure is not the same as creating a functioning export system. Storage, terminals, buyers, insurance, security, and financial settlement must all align. Fixed infrastructure also creates new vulnerabilities during wartime.

Jafar Ghaderi, a member of Iran's parliamentary Economic Commission, framed the constraint plainly: 83 percent of Iran's 210 million tons of annual imports traditionally moved through southern maritime borders. The eastern, western, and northern corridors have never been tested at that scale. Alireza Salavati, a London-based political economy analyst, acknowledged that Iran does have unused capacity and more room to maneuver than its dependence on southern ports might suggest. But capacity and replacement are different things.

Umud Shokri, an energy strategist at George Mason University, distinguished between two types of alternatives that Iranian officials often conflate. One involves alternative shipping lanes around Hormuz. The other involves shifting trade toward Pakistan, Iraq, Turkey, the Caspian region, and ports like Jask and Chabahar. Neither provides a full substitute for southern energy exports. "The plan is realistic as a resilience strategy, but not as a replacement strategy," Shokri said.

What the blockade may accomplish, then, is not an escape from maritime dependence but a structural shift in how Iran distributes its economic risk. The corridors can keep essential goods moving. They can deepen economic ties with Russia, Central Asia, Turkey, Pakistan, and Iraq. If investment continues, the blockade may accelerate infrastructure projects that Tehran had previously treated as long-term opportunities. But these routes come with higher costs, limited capacity, and their own political dependencies. For Iran, the lasting effect may be a reorientation of trade patterns—away from the south, toward the north and overland connections—without ever achieving the volume or efficiency that the Persian Gulf ports and seaborne energy exports once provided.