The Strait of Hormuz Crisis: Why IATA Cut Its 2026 Profit Outlook by Over 35%

The war instantly invalidated those assumptions. The Strait of Hormuz, a narrow corridor through which roughly one-fifth of the world’s oil supply normally passes, became a contested military zone . U.S. authorities confirmed that major passenger airlines spent $5 billion on jet fuel in March 2026 alone, a jump of $1.8 billion—or 56%—from February . With fuel typically accounting for over 40% of an airline’s operating costs, the rapid price increase erased the industry’s thin profitability margin almost overnight .

Pre-existing supply chain bottlenecks compounded the damage. Airlines were already spending an estimated $11 billion annually on maintenance and inefficiencies from delayed aircraft deliveries and aging planes . The fuel crisis took this fragile system and broke it, converting a projected record profit into a severe contraction.

Anatomy of the Jet Fuel Crisis

The jet fuel market experienced a shock that was remarkable for both its speed and scale.

• Unprecedented Price Spike: IATA’s own Jet Fuel Price Monitor recorded a 58.4% surge in a single week following the initial strikes . By mid-April, spot prices had reached approximately $4.24 to $4.51 per gallon, nearly doubling from pre-war levels .
• Global Supply Seizure: The virtual cessation of maritime traffic through the Strait of Hormuz cut off not only crude oil but a major share of refined jet fuel exports, creating acute shortages for refineries in Asia and Oceania . Australia, which sources most of its jet fuel from regional refineries, was reported to have only 30 days of reserves on hand .
• European Refining Scramble: Jet fuel crack spreads in Northwest Europe hit a record $121 per barrel in March, compared to around $30 before the conflict, signaling extreme tightness in the global refining market .

A Cascade of Global Impacts

The surge in fuel costs rippled through every level of the aviation industry, with impacts that went far beyond a simple rise in the pump price.

Fare Hikes and Surcharges

Airlines moved quickly to pass on costs. Carriers across Southeast Asia and Oceania added fuel surcharges or raised base fares . IATA Director General Willie Walsh warned that passengers in Europe and Asia should brace for significantly higher ticket prices, particularly in regions heavily reliant on Persian Gulf energy supplies .

Massive Schedule Cuts and Rerouting

Operational disruption was immediate and widespread. More than 46,000 flights in and out of the Middle East were canceled between February 28 and mid-March . Airlines were forced to route around Iranian and Persian Gulf airspace, sometimes adding up to 120 minutes of flying time per trip and burning an additional 8,000 to 15,000 liters of fuel on a single widebody detour . Lufthansa responded by cutting 20,000 short-haul European flights from its summer schedule, while Qantas warned of spiraling costs and Virgin Atlantic flagged a looming supply crunch .

Market Value Loss and Softening Demand

The financial market reaction was punishing. Within the opening weeks of the conflict, the world’s largest airlines had lost roughly $53 billion in market value . Passenger demand softened as higher fares and reduced schedule reliability discouraged bookings, weakening airlines’ ability to fully pass through their increased costs .

Soaring Operational Costs

Fuel wasn’t the only cost to spike. War-risk insurance premiums for any flight operating near the Middle East rose sharply, adding yet another line to airline balance sheets already buckling under fuel prices . The conflict thus squeezed the industry from both the cost and revenue sides simultaneously.

The Spirit Airlines Collapse: A Case Study in Fragility

No single event illustrates the crisis’s severity more clearly than the collapse of Spirit Airlines. On May 2, 2026, after 34 years in operation, Spirit ceased all flights permanently, marking the first major U.S. airline liquidation in a quarter of a century .

Spirit’s demise was a direct result of the fuel shock. The airline had been operating under Chapter 11 bankruptcy protection and had built its entire restructuring plan around a projected average jet fuel cost of $2.24 per gallon for 2026 . When actual prices surged past $4.50 per gallon following the Iran strikes, that assumption became catastrophically wrong .

• Cash Burn: Spirit’s attorneys disclosed that the airline spent an additional $100 million on fuel in just March and April compared to its restructuring budget .
• Failed Rescue: The company had secured a tentative $500 million rescue plan with lenders, but financiers backed out when the fuel price spike made the business case unviable . A last-minute attempt by the White House to intervene also failed to save the carrier .
• Broken Fundamentals: In February, just days before the war, Spirit had filed an operating loss of $28.2 million and a net loss of $133.2 million for the month, figures that worsened rapidly as fuel costs escalated .

The collapse was not simply a tragedy for Spirit’s 17,000 employees; it was a warning shot for the entire ultra-low-cost carrier model, which relies on predictable operating costs to sustain razor-thin margins.

The Outlook: A Slow and Fragile Recovery

For an industry hoping for a quick rebound, the evidence suggests a prolonged crisis.

Even a two-week ceasefire between the U.S. and Iran in April 2026 failed to bring immediate relief. IATA’s Willie Walsh cautioned that it could take months for jet fuel supplies to stabilize even if the Strait of Hormuz remained open, due to significant damage and disruption to Middle Eastern refining capacity . The physical infrastructure required to refine and transport jet fuel does not recover as quickly as diplomatic agreements can be signed.

Longer-term, the recovery trajectory depends on the security of the Strait of Hormuz. As long as maritime passage through the waterway remains disrupted or under threat, roughly 20% of the global oil supply will stay constrained, keeping fuel costs structurally elevated . Airlines that had widely abandoned fuel hedging strategies in 2024 and 2025 are now fully exposed to spot market volatility, a vulnerability that will persist as long as geopolitical tension simmers .

The expected $26–27 billion industry profit for 2026, while still nominally positive, represents a profound margin squeeze. At a 3.9% net margin, the airline industry was never healthy—it was always delicate . The Iran war fuel crisis exposed just how rapidly that delicacy can turn into disaster.