As tensions from the Iran war escalate, the airline industry is facing a critical jet fuel shortage that could lead to widespread flight cancellations and increased travel costs. The International Energy Agency (IEA) warns that Europe may run out of jet fuel in just six weeks, compounded by factors such as the Hormuz blockade affecting supply lines. Airlines like KLM are already cutting numerous flights, responding to soaring fuel prices that have doubled. Passengers are urged to be aware of their rights in case of flight cancellations, while the European Union prepares for potential fuel diversification and sharing initiatives. Experts highlight that this crisis could significantly impact summer travel plans across the continent, raising concerns for travelers and businesses alike.