After the ceasefire in June, there were renewed hostilities in the Middle East between the US and Iran – leading to a renewed surge in jet fuel prices. Of course, jet fuel is not the only input into the running costs of an airline –so not directly correlated. But jet fuel is certainly a key input – typically accounting for one-third or more of a carrier’s total expenses. That often occurs when the summer holidays start – with more passenger traffic, which may increase demand for jet fuel. This time, according to one source, they may have had to pay more for jet fuel – but were not so worried about finding supplies.