Airlines will be expected to consolidate schedules on certain routes with multiple flights to the same destination on the same day as part of contingency measures the UK government announced on Sunday. The Department for Transport (DfT) issued a series of temporary plans amid ongoing jet fuel supply issues caused by the US-Iran conflict and the blockade of the Strait of Hormuz.

It stressed that while UK airlines say they are not currently facing supply issues, the government is stepping in to protect travellers from the likelihood of last-minute flight cancellations over the upcoming summer holiday period in the event of significant disruption caused by the conflict. 

“Since the closure of the Strait of Hormuz, the government has been monitoring jet fuel supplies daily and working with airlines, airports and fuel suppliers to stay ahead of any problems," said UK Transport Secretary Heidi Alexander. “There are no immediate supply issues, but we’re preparing now to give families long-term certainty and avoid unnecessary disruption at the departure gate this summer.

“This legislation will give airlines the tools to adjust flights in good time if they need to, which helps protect passengers and businesses," she said.  Alexander said that the UK "will do everything we can to insulate" the country from the impact of the situation in West Asia.

The contingency plans are designed to enable airlines to plan realistically and lock in schedules earlier so that people are less likely to be affected by short notice changes at the airport. 

Instead of cancelling flights at the last minute, the temporary measures would help move passengers onto similar services, prevent running flights which have not sold a significant proportion of tickets and reduce wasted fuel from flying near-empty planes.  DfT said it will be consulting with the aviation industry in order to act quickly and before any travel disruption is allowed to take hold.  The measures will allow airlines to proactively hand back a limited proportion of their allocated take-off and landing slots without losing the right to operate them the following season. 

Such "Hand backs" would help airlines build realistic schedules and avoid last-minute cancellations rather than flying empty "ghost flights" or cancelling at short notice, putting passengers’ plans at risk, DfT stated. “Airlines have a duty to look after their passengers when they face disruption, and should offer a choice between a refund or alternative travel arrangements, including with another airline, if a flight is cancelled," said Rob Bishton, Chief Executive of the UK Civil Aviation Authority. 

“Relaxing the rules around slots at airports will allow airlines more flexibility, and so we expect them to give passengers as much notice as possible of cancellations during this period," he said.  Under UK rules, if a flight is cancelled by the airline, passengers have a legal right to a choice between being re-routed or a refund. If it is subject to a significant delay – at least two hours for short-haul, three hours for medium-haul and four hours for long-haul – passengers are entitled to care and assistance, including food, drink and overnight accommodation where necessary. 

The British government said it is increasing awareness around consumer rights as it works to increase flexibility on jet fuel supply and domestic jet fuel production.

The UK imports jet fuel supplies from a range of countries not reliant on the Strait, including the United States. The UK's four refineries have been asked to maximise jet fuel supply, as the government explores options to increase supplies from the US.  The Transport Secretary discussed the government's contingency plans to protect summer holiday plans at a roundtable with key industry figures earlier this week, including representatives from Heathrow and Gatwick Airports as well as British Airways, Virgin Atlantic and easyJet. 

“UK airlines continue to operate normally and are not experiencing issues with jet fuel supply," said Tim Alderslade, CEO of Airlines UK.  “We welcome the government’s contingency planning, including slot alleviation, which is one measure which enables airlines to adjust schedules responsibly, avoid unnecessary flying and continue operating efficiently while protecting connectivity for passengers," he said.  Karen Dee, Chief Executive of AirportsUK, added: “While our partners across the aviation sector continue to report no shortage of jet fuel supplies, it is sensible for the government to consult on possible action if this were to change. 

“We will now work closely with our airport members, ministers and officials to examine the proposals and respond on the best way to proceed that will lead to the best outcomes for passengers.”

Published on May 3, 2026