Ryanair, easyJet Warn of May Flight Delays Amid Jet Fuel Squeeze

Travellers flying with Ryanair and easyJet through major European hubs from early May are being warned to brace for possible delays as the closure of the Strait of Hormuz tightens jet fuel supplies across the continent.

Fuel Crisis Ripples From Gulf Shipping Lanes to European Hubs

European aviation is confronting growing disruption risks after conflict in the Gulf severely restricted maritime traffic through the Strait of Hormuz, a vital corridor for global oil shipments. Publicly available data indicate that about one fifth of the world’s seaborne oil normally moves through the narrow waterway, and the cut in flows since March has fed directly into jet fuel markets.

Industry analysis shows that the resulting supply shock has pushed jet fuel prices sharply higher and raised the prospect of physical shortages in the weeks ahead. Reports indicate that benchmark prices for aviation fuel in European markets have climbed by hundreds of dollars per tonne since late February as traders race to secure alternative supplies.

Although some shipping has resumed following a limited ceasefire announcement in early April, traffic levels through the strait remain well below pre-conflict norms. Analysts note that even a partial reopening is unlikely to reverse the tightness in jet fuel quickly, since European storage tanks and supply chains have already begun drawing down reserves that are not being fully replaced.

Airlines and airport groups now describe the situation as a near-term operational issue rather than a distant geopolitical risk, with several warning that fuel availability rather than passenger demand could become the main constraint on flying schedules in May and June.

Ryanair and easyJet Flag Potential Delays From May 4

Against this backdrop, low-cost carriers Ryanair and easyJet have begun cautioning customers about possible disruption at key European airports from the first weekend in May. According to recent media coverage, both airlines have advised that services could face delays, and in some cases cancellations, if fuel deliveries fall short at individual airports.

Reports from European travel outlets indicate that the warnings focus particularly on high-traffic hubs serving London, Paris and Berlin, where daily rotations are dense and turnaround times are tightly scheduled. Even modest rationing or delayed deliveries of jet fuel at these airports could quickly ripple into wider timetable disruption as aircraft miss their planned departure slots.

Ryanair and easyJet dominate short-haul travel from the United Kingdom and several continental markets, meaning their operational choices have an outsized impact on overall capacity. Publicly available information shows that Ryanair remains Europe’s largest airline by passenger numbers, with easyJet also among the region’s leading low-cost operators. Any coordinated schedule trimming, aircraft swapping or consolidation of lightly booked flights to save fuel could be felt across dozens of routes.

While both carriers have previously highlighted that hedging strategies shield them from the immediate price impact of the crisis, hedging does not secure physical supply. Recent commentary from analysts and industry observers stresses that the key concern for May is not the cost of fuel but whether sufficient volumes will be available at all required airports, especially at peak times.

Airports Warn of Systemic Jet Fuel Shortage Risk

Airport operators are amplifying the alarm. A regional airports association representing facilities across Europe has written to European Union institutions warning that, if shipping flows through the Strait of Hormuz do not normalize by the end of April, the bloc could face what it describes as a systemic jet fuel shortage within weeks.

According to published summaries of that letter, the group has urged policymakers to prepare emergency measures, including closer monitoring of refinery output, coordinated use of strategic oil stocks and temporary regulatory adjustments to broaden the types of fuel that can be used by airlines operating within Europe. The association argues that early intervention could help smooth supply imbalances between airports and prevent localized shortages from cascading into continent-wide disruption.

Industry trade bodies have echoed these concerns in separate communications, pointing out that air connectivity is closely tied to economic output and employment. They warn that unmanaged fuel constraints could lead to a wave of last-minute flight changes and cancellations just as the summer travel season begins, affecting tourism-dependent economies in particular.

Public commentary from airline and airport groups also notes that existing European rules on emergency oil reserves focus on overall crude and product stocks, with less emphasis on ensuring dedicated jet fuel availability. Calls are growing for Brussels to reassess those frameworks in light of the current crisis, which targets a specific segment of the refined products market.

Implications for Travellers Using London, Paris and Berlin

For travellers booked on Ryanair, easyJet or other carriers that rely heavily on London, Paris and Berlin airports, the emerging fuel crunch may translate into practical complications from early May. Reports indicate that airlines are reviewing flight plans, aircraft rotations and refuelling patterns to reduce exposure to potential bottlenecks at particular hubs.

One scenario being discussed in industry analyses involves airlines taking on additional fuel at airports where supplies remain robust, then operating shorter legs on partial tanks into more constrained locations. While this practice can help maintain schedules, it also adds weight and may reduce the ability to carry extra fuel for contingencies, raising the importance of punctual operations and favourable air traffic conditions.

Another likely response, according to aviation commentators, is the consolidation of less busy services so that two lightly booked flights are combined into one fuller aircraft. That would conserve fuel but increase the risk of rebookings and schedule changes for affected passengers, especially on off-peak days and secondary routes.

London’s multi-airport system, including Gatwick, Stansted and Luton, along with major continental hubs such as Paris Charles de Gaulle, Orly and Berlin Brandenburg, are expected to be closely monitored by network planners. Any sign of rationing at one airport could trigger rapid timetable adjustments as airlines try to shield their most profitable routes and departure banks.

How Long Could Disruption Last?

The duration of any delays or schedule changes linked to the Strait of Hormuz disruption remains uncertain. Energy market specialists quoted across financial and industry media suggest that even if shipping volumes through the strait improve in late April, it could take several months for global jet fuel inventories and price levels to normalize.

European airports and airlines are therefore planning for a range of scenarios extending into the peak summer period. Some analyses highlight that storage tanks and strategic reserves could cushion the impact for a time, but that sustained shortfalls in seaborne deliveries would eventually require more drastic capacity cuts or route reshuffling.

For now, the message emerging from Ryanair, easyJet and sector associations is one of caution rather than panic. Flights remain scheduled, and both carriers continue to market their summer programmes. However, the combination of higher fuel costs, potential physical shortages and an already stretched air traffic system means that passengers transiting London, Paris, Berlin and other major hubs from May 4 onward may face a greater-than-usual risk of disruption.

Travellers are being encouraged by consumer groups and travel advisers to monitor airline communications closely, allow additional time for connections, and consider flexible booking options where possible as the fuel situation and its impact on European air travel continue to evolve.