Jet fuel prices just jumped 80%. Will airline tickets get more expensive next?

Get ready to pay more to fly.

The war in Iran has sent fuel prices surging. On Friday, spot prices for jet fuel were nearly $4 per gallon, up roughly 80% from a month ago, when they were hovering around $2.25. The price increases are a result of the just-begun war in Iran, which has caused shipping and production stoppages and delays. 

At the same time, airlines are seeing higher demand than they were a year ago. Data from the International Air Transport Association (IATA) shows that during January...