On 24 April 2026, the Department for Transport, the Department for Energy Security and Net Zero and the Foreign, Commonwealth & Development Office issued a joint public note saying there was no current need for passengers to change travel plans. The departments said UK airlines were not seeing a jet fuel shortage, because fuel is commonly bought in advance and airports and suppliers maintain bunkered stocks to support resilience. (gov.uk) The document is framed as a reassurance and rights explainer rather than a direction to defer travel. Its main message is that flights should keep operating while ministers and industry continue to monitor supply risks closely. (gov.uk)
The immediate trigger is the closure of the Strait of Hormuz. In the same note, ministers said they were monitoring UK jet fuel stocks with airlines, airports and fuel suppliers, planning for a range of contingencies and working towards the restoration of shipping flows through the strait. Separate UK statements published in April 2026 describe the closure as a threat to trade and energy movements and confirm wider diplomatic and military planning focused on reopening the route. (gov.uk) That sequencing suggests the government is trying to manage resilience before disruption reaches passengers at scale. The public line remains deliberately limited: there is pressure in the wider transport and energy system, but ministers are not currently advising travellers to cancel or rearrange bookings. (gov.uk)
For passengers, the operational advice remains straightforward. The government says travellers should keep checking with their airline before departure, consult FCDO travel advice for the destination concerned and make sure they hold appropriate travel insurance. FCDO guidance says its travel advice is intended to help people make informed decisions and notes that insurance can be affected if someone travels against official advice. (gov.uk) This does not amount to a blanket warning against flying. The effect is that routine monitoring remains the practical step: follow carrier updates, watch destination-specific advice and avoid making pre-emptive changes unless the airline or the government position changes. (gov.uk)
The passenger-rights position is clearer than the fuel picture. Under the scope rules set out by the Civil Aviation Authority, UK law applies to flights departing from a UK airport on any airline, arriving in the UK on an EU or UK airline, or arriving in the EU on a UK airline. Where a covered flight is cancelled, the airline must offer a choice between a refund and alternative travel arrangements. (gov.uk) CAA guidance adds that, where UK261 applies, airlines also owe duties during qualifying delays, including food and drink, a means of communication and overnight accommodation where needed. If a delay runs beyond five hours, passengers can choose not to travel and receive a refund. In practical terms, the government note is not creating new rights; it is reminding travellers that the existing consumer protection framework still applies if disruption reaches their booking. (caa.co.uk)
The operational policy change with the widest effect sits in slot allocation. At co-ordinated airports, a slot is the permission to use airport infrastructure for take-off or landing at a specified time. Under the standard rule, airlines need to use 80% of an allocated slot series to retain the same series in the equivalent season that follows. Government material on the 2025 slot regulations describes this as the basis of historic retention, subject to justified non-use. (gov.uk) Against that background, the government says Airport Coordination Limited has updated its guidance so airlines will not lose slots if fuel shortages prevent flights from operating. The real-world effect is to reduce pressure to run services simply to protect next season’s slot entitlement, allowing carriers to prioritise disruption management over formal slot preservation. (gov.uk)
Taken together, the measures amount to a contingency package rather than an emergency intervention. The government is signalling that fuel resilience remains intact for now, that the consumer-law backstop is already in place, and that slot-rule flexibility can be used to manage disruption without encouraging unnecessary flying. (gov.uk) For airlines, airports and travel businesses, the immediate task is communication and evidence: monitor fuel and scheduling risk, keep passengers updated and record cancellations or delays against the relevant legal and slot-allocation rules. For passengers, the position is narrower and more practical: continue with current plans unless contacted by the carrier, but be ready to use refund or re-routing rights if services are cancelled. (gov.uk)