Expert urges travellers to insure travel purchases amid rising risks CTV NewsAirlines are starting to cancel flights as they face jet fuel shortages and rising prices brought on by the Iran war businessinsider.comRyanair CEO says book summer trips before fares soar, despite risk of fuel crunch canceling flights FortuneEurope’s airports thirst for jet fuel politico.euDespite soaring jet fuel prices, air fares aren’t up that much. But they will be CNN