Jet fuel supplies are under severe pressure as tensions around the Strait of Hormuz threaten a critical global oil route.

This narrow passage handles a major share of fuel shipments to Europe and Asia, and any disruption here sends shockwaves across global aviation.

Jet fuel accounts for nearly 30 percent of an airline's operating costs, and prices have surged in recent weeks.

With supplies tightening, airlines are raising ticket prices by adding fuel surcharges, and even cutting routes that have become unprofitable.

For travellers, this means fewer flight options, higher fares, and more last-minute schedule changes.