As crude oil prices continue to rise due to the conflict in Iran, jet fuel costs are also increasing. Frequent travelers are seeing price increases while booking flights online and are considering future trips. Travel agent Paul Hardersen from Seadog Travels has seen flights to some destinations double in price. The global average jet fuel price last week was up nearly 60 percent from the previous week and nearly 75 percent from last year. Travel agents are urging passengers to book necessary trips as soon as possible before ticket prices rise further.