Ryanair is warning that parts of its busy summer schedule could be scaled back, with publicly available information indicating that flights in May, June and July may be cancelled if jet fuel supplies are disrupted by the conflict in the Middle East.

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Ryanair warns summer flights may be cut amid fuel risks

Jet fuel supply concerns put peak season plans in doubt

Recent public comments from Ryanair chief executive Michael O’Leary highlight growing concern that jet fuel deliveries into Europe could be affected from early May if instability around the Strait of Hormuz continues. That shipping corridor is a key route for crude and refined products, and any prolonged disruption could tighten supplies into major European hubs.

Coverage from broadcasters and regional outlets indicates that the airline is not currently altering its schedule for April, but is openly modelling scenarios that include flight reductions in the core holiday months of May, June and July. In a worst case where fuel flows are interrupted for several weeks, O’Leary has suggested that up to 5 to 10 percent of flights could be cut on some routes in order to conserve fuel and keep the rest of the network operating.

The warnings come as many European travellers are finalising summer plans for destinations such as Spain, Portugal, Italy and Greece. Ryanair is one of the largest carriers in these markets, so even a limited reduction in capacity could have a noticeable impact on seat availability and pricing across the wider short haul market.

Ryanair’s comments are being echoed by broader industry analysis that points to fuel as the single biggest variable for airlines heading into the 2026 summer season. While demand remains strong, planners are increasingly focused on how to protect schedules if a geopolitical shock affects deliveries into key fuel farms serving major airports.

Conflict in Iran and Middle East tensions drive the risk

Reports indicate that the immediate concern for airlines such as Ryanair is linked to the war involving Iran and its impact on shipping patterns. Insurers, ports and tanker operators have already adjusted routes and pricing, and aviation analysts say that any escalation or prolonged disruption could feed quickly through to kerosene availability and cost in Europe.

According to published coverage of recent interviews, O’Leary has framed the issue as a potential supply squeeze rather than an existing shortage. The airline does not expect significant issues before early May, but has warned that if the conflict drags on for 60 to 90 days, the risk of disruption to European jet fuel supplies in May and June would rise sharply.

That timeline is critical because it overlaps with the build up to the peak holiday season. Refineries and distributors typically ramp up deliveries to match airline schedules that have been fixed months in advance. Any late change in supply dynamics could leave carriers with difficult choices over which routes to prioritise and which flights to trim back.

The geopolitical backdrop comes on top of existing cost pressures. Even if widespread cancellations are avoided, industry commentary suggests that a tighter fuel market would almost certainly feed into higher operating costs for airlines, which in turn could be passed on to passengers through higher summer fares.

Other carriers already trimming capacity as Ryanair holds line

While Ryanair is currently talking in terms of potential rather than confirmed cuts, publicly available reporting shows that some rivals in the low cost sector have already moved to reduce capacity for late spring and early summer. Airlines such as Wizz Air and easyJet have reportedly cancelled a portion of flights and are planning to operate with around 5 percent less capacity on certain routes in May and June.

Industry observers note that these early adjustments reflect both fuel risk and a desire to protect profitability in an uncertain environment. By contrast, Ryanair has so far maintained its headline growth targets for the season, indicating that it still aims to carry more passengers year on year, albeit with the caveat that schedules may need to be fine tuned if fuel supply tightens.

Regional airlines are also feeling the strain. Coverage from local media in the Channel Islands, for example, points to carriers already cutting or reshaping services to and from Guernsey in response to the evolving fuel backdrop and softer demand on certain sectors. Those changes underline how quickly smaller markets can be affected when operating conditions shift.

For travellers, the divergence in strategies means that the risk of disruption may vary by route and by airline. On busy trunk routes with multiple daily Ryanair flights, any eventual cuts are more likely to take the form of frequency reductions rather than full withdrawal, whereas thinner regional links operated by smaller airlines may see more substantial changes.

Fares expected to rise even if flights go ahead

Alongside the warning over potential cancellations, Ryanair has signalled that fares are likely to move higher into the early summer period. According to recent reports, the carrier still expects ticket prices from April to June to be around 3 to 4 percent above last year on average, supported by resilient demand and constrained capacity across Europe.

If fuel markets tighten further, analysts believe that pricing pressure could increase beyond those initial estimates. Airlines typically hedge a portion of their fuel needs, but not all carriers are hedged to the same degree, and surges in spot prices can still erode margins. In that environment, operators tend to push yields higher where demand is strongest, particularly on leisure routes to Mediterranean destinations.

Travel industry commentary is already advising passengers with fixed dates to book earlier rather than wait in the hope of late deals. With uncertainty over fuel and capacity, the traditional pattern of last minute discounts on popular routes may be less pronounced than in previous years, especially for peak travel weekends and school holiday periods.

Even where flights are not cancelled, higher prices and possible schedule reshuffles could alter travel patterns. Some holidaymakers may opt for alternative airports or off peak days to secure better fares, while others might switch to different carriers or consider rail and ferry options on shorter cross border journeys.

What passengers planning May, June and July trips should watch

For now, Ryanair’s summer timetable for May, June and July remains on sale, and there has been no broad programme of cancellations announced. The airline’s public stance is that it intends to operate its planned schedule, but that it cannot rule out selective cuts if the Middle East conflict continues to disrupt fuel markets.

Travel experts recommend that passengers keep a close eye on airline communications as their departure dates approach, particularly for trips scheduled from early May onward. Checking booking details regularly, enabling notifications in airline apps and monitoring departure airports for operational updates can help travellers react quickly if schedules change.

Passengers are also being reminded through consumer advice columns that existing aviation regulations in the United Kingdom and European Union set out clear rights in the event of cancellations or significant delays. These frameworks can entitle travellers to refunds, rerouting or, in some cases, compensation, depending on the circumstances and notice period.

With the situation around jet fuel supplies still fluid, the coming weeks will be critical in determining whether Ryanair’s warning translates into tangible disruption or remains a contingency that never fully materialises. Until there is greater clarity on the trajectory of the conflict and its impact on shipping routes, Europe’s largest low cost carrier and its customers face an unusually uncertain run up to the peak summer months.