The Iran war is threatening summer travel, with oil prices rising and flight and hotel bookings decreasing, according to industry experts. Airlines in the U.S. and elsewhere have cut flights and raise ticket costs and baggage fees, while airlines remain confident that passengers will pay higher ticket prices. Virginia Tech hospitality and tourism professor Mahmood Khan says that long-term bookings have decreased due to rising gas prices. The average gas price has been above $4 a gallon for weeks and reached the highest level in four years. Jet fuel prices have surged from $85 to $90 per barrel before the war began to over $200 a barrel. The Strait of Hormuz, typically accounting for 20% of global oil supplies, has closed it to commercial ships, while the US Navy has blocked the strait. The head of the International Energy Agency has warned Europe may run out of jet fuel within weeks.