Why this matters: Insurance and freight are hidden costs in everything you buy — wars can push them up and ripple into prices.
War-risk insurance, rerouting and longer voyages raise the cost of moving goods through or around conflict zones. This evergreen explainer walks the insurance, freight and rerouting channels and links to the maritime data behind them.
- War-risk insurance premiums
- Rerouting and longer voyages
- Delays and landed costs
What this is about
Moving goods by sea carries insurance: hull cover, cargo cover, and 'war-risk' cover for voyages through higher-risk areas. When a conflict raises the risk to ships in a region, insurers reprice war-risk cover and shipowners may reroute, slow down or avoid the area. Each response adds cost. This briefing explains those channels, anchored on UNCTAD and IMF PortWatch maritime work; it does not quote specific premiums or attribute a price move to one event.
Economic channels
The routes through which this can transmit to prices and trade. Several usually operate at once, which is why a single cause can rarely be isolated.
War-risk insurance premiums
Insurers add or raise war-risk premiums for voyages through higher-risk waters, increasing the cost of each transit even when ships keep sailing.
Rerouting and longer voyages
Avoiding a risky chokepoint can add thousands of miles and many days, tying up vessel capacity and raising freight rates.
Delays and landed costs
Slower, costlier shipping raises the landed cost of goods and commodities and can lengthen supply lead times — an input-cost channel.
What Warconomy data shows
Warconomy's chokepoint pages summarise UNCTAD and IMF PortWatch source-reported figures on transit declines and rerouting during documented disruptions. These illustrate the cost channels; Warconomy does not publish live insurance premiums or freight indices.
What this does not prove
- It does not quote current war-risk premiums or prove a specific event caused a specific freight change.
- Insurance and freight respond to capacity, fuel and demand as well as risk.
- Warconomy does not track real-time insurance, freight or ship positions.
Sources
Every figure this briefing refers to lives on a source-linked Warconomy page. The registry entries behind it:
- UNCTAD — Review of Maritime Transport 2024 — UN Trade and Development (UNCTAD) (official)
- IMF PortWatch — Red Sea Attacks Disrupt Global Trade — International Monetary Fund (official)
- Suez Canal Authority — Navigation statistics — Suez Canal Authority (official)
Further authoritative references (external; for the underlying figures — Warconomy does not republish their numbers as its own):
- IMF PortWatch — International Monetary Fund (IMF) intergovernmental
Where to go next
Cite this page
Warconomy, “Why wars raise shipping insurance and transport costs”, reviewed as of June 23, 2026. https://warconomy.com/briefings/war-risk-insurance-shipping-costs.
Machine-readable: the JSON dataset and source registry. More citation formats on the citation catalog. Values are source-linked and manually maintained; not real-time.