Jet Fuel Shock: Wizz Air, SAS, Lufthansa, KLM Hit by Iran War

European airlines from budget carrier Wizz Air to network giants SAS, Lufthansa and KLM are scrambling to contain a sudden surge in jet fuel prices as war in Iran and a wider Gulf conflict squeeze global oil supplies, disrupt key air corridors and threaten to stall the fragile recovery in international travel in 2026.

Middle East Conflict Sends Jet Fuel Costs to Multi-Year Highs

The latest escalation of conflict around Iran, including missile and drone strikes on energy infrastructure and the effective closure of the Strait of Hormuz, has jolted oil markets and pushed jet fuel prices to their highest levels in years. Brent crude has jumped back above 100 dollars a barrel in recent days after attacks on refineries and export terminals around the Persian Gulf and a partial shutdown of shipping traffic through the vital chokepoint.

Refined products used by airlines have risen even faster than crude. Industry data show jet fuel benchmarks leaping from roughly 85 to 90 dollars a barrel before the Iran war erupted at the end of February to a trading range closer to 150 to 200 dollars in early March. Because margins and risk premiums stack up at every stage of refining, storage and transport, kerosene prices typically overshoot the move in crude, leaving airlines exposed to a sudden and sharp jump in operating costs.

For carriers already operating on razor-thin margins, the move is brutal. Fuel normally accounts for about 20 to 25 percent of an airline’s cost base. Analysts warn that a spike of more than 50 percent in jet fuel prices in barely two weeks threatens to erase much of the sector’s anticipated profit for the first half of 2026 and could quickly translate into higher fares, thinner schedules and delayed fleet investments if the conflict persists.

Wizz Air Issues Profit Warning as European Carriers Pivot

Hungarian low cost airline Wizz Air has become one of the first European carriers to quantify the financial hit. The airline issued a profit warning this week, flagging an estimated 50 million euro impact tied to both spiralling fuel bills and the knock on effects of rerouting around closed Middle Eastern airspace. The announcement sent a chill through Europe’s budget sector, which is particularly sensitive to rapid cost swings and has less premium revenue to cushion blows.

Chief executive Jozsef Varadi has tried to reassure investors that the damage will be contained to the financial year ending this month, emphasising that the airline is already pivoting capacity away from the Gulf corridor and deeper into intra European routes. Wizz Air is trimming or suspending flights that traditionally overfly Iran and neighbouring countries and redeploying aircraft to central and eastern European leisure markets where demand remains resilient and exposure to war risk surcharges is lower.

Even with those shifts, the airline’s business model, built on ultra low fares and high aircraft utilisation, is under pressure. Passing the full fuel increase on to price sensitive passengers is difficult in the short term, particularly on routes where rail or coach alternatives exist. Industry observers say Wizz Air’s warning may be an early sign of wider strain among low cost carriers across the continent if jet fuel prices remain elevated into the summer season.

SAS, Lufthansa and KLM Confront Soaring Costs and Route Disruptions

Network airlines are also moving quickly. Scandinavian Airlines, or SAS, has begun adjusting fares and fuel surcharges on European and long haul routes after what it described as the steepest jump in regional jet fuel prices since the aftermath of Russia’s invasion of Ukraine in 2022. The company confirmed that its hedging program only partially shields it from the current spike, forcing management to consider capacity cuts and more aggressive pricing action.

Lufthansa and KLM, both heavily exposed to long haul traffic connecting Europe with Asia, the Middle East and Africa, are wrestling with a complex mix of rising costs and operational constraints. The closure or restriction of multiple Gulf and Levant airspaces is forcing aircraft to detour thousands of extra kilometres around conflict zones, adding fuel burn and crew time on already expensive intercontinental sectors. Some routes to South Asia and Southeast Asia have had to be cancelled outright on safety grounds, squeezing connecting flows through Frankfurt, Munich, Amsterdam and other hubs.

Executives at the two groups have acknowledged that demand for travel remains robust but say they can no longer absorb the jump in jet fuel costs. Both airlines are reviewing their summer 2026 schedules and signalling that customers should expect higher base fares and fuel surcharges, particularly on long haul itineraries that previously transited the Gulf corridor. Frequent flyer programs and promotional sales are also under scrutiny as carriers look to protect yields in a more volatile environment.

Travel Demand Under Threat as Prices Rise and Capacity Freezes

For travellers, the immediate impact is already visible in fare searches and booking patterns. Average ticket prices on many Europe to Asia routes have risen within days as airlines strip out discounted inventory and tighten capacity amid uncertainty over flight paths and insurance costs. Analysts note that long haul fares had only recently normalised after the upheaval of the pandemic and earlier conflicts; the renewed energy price shock now risks halting the recovery in its tracks.

Travel agencies and online booking platforms report a surge in inquiries from passengers wondering whether to lock in tickets now or wait for potential last minute deals. Most industry experts, however, are advising caution rather than opportunism. With jet fuel at multi year highs and airlines reluctant to commit additional capacity into a war affected region, the likelihood of sudden fare discounts appears low in the short term. Instead, some are suggesting that holidaymakers consider closer to home destinations in Europe for the coming months, where flight times are shorter and exposure to detours is limited.

There are also growing concerns about demand destruction if the conflict and price shock persist. Leisure travellers, who are generally more price sensitive, may cut back on long haul trips or trade down to basic economy tickets, while corporate travel departments could tighten budgets or shift to videoconferencing for non essential meetings. The combination of higher fares, extended journey times on rerouted flights and persistent headlines about regional instability could cool the appetite for international travel through 2026, even if the broader global economy avoids recession.

Aviation Industry Braces for Prolonged Shock

Airline executives and investors are now gaming out scenarios that range from a brief but violent flare up with a swift reopening of Gulf energy routes to a protracted conflict that keeps oil and jet fuel elevated well into next year. Economic forecasters warn that a sustained period of triple digit crude would ripple far beyond aviation, lifting inflation, squeezing household budgets and potentially forcing central banks to delay any interest rate cuts that had been pencilled in for 2026.

Within the sector, the pain is unlikely to be evenly shared. Large transatlantic carriers with more diversified networks and deeper balance sheets may weather the storm better than smaller regional or ultra low cost competitors. Airlines that invested heavily in fuel efficient aircraft and robust hedging strategies will have some cushion, while those that entered the year with thin cash reserves or ambitious growth plans could find themselves forced to slow expansion, defer aircraft deliveries or even seek fresh capital.

For now, the watchword across boardrooms is caution. Capacity growth plans for 2026 are being quietly revisited, non essential spending is on hold and route planners are rethinking dependence on any single corridor, however lucrative it may have seemed just weeks ago. Unless tensions in the Middle East ease and jet fuel prices retreat from their current peaks, the industry’s long awaited return to stable, predictable growth looks set to be postponed yet again.