Your next flight may be more expensive as the War on Iran continues to drive up oil and jet fuel prices. 

According to flight booking website Going.com, costs are 18% higher for domestic flights and are 7.5% higher for international flights, while airlines are cutting back on routes to offset higher fuel costs. 

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Going.com travel expert Katy Nastro said, "Carriers are looking at routes that have the availability to rebook passengers on, so it's not going to cause major disruption, but it's still taking flights out of the network." 

Tanza Moye and Sherrod Basnight were on their way to fly to Atlanta from RDU Friday morning. They say the price to fly to and from Atlanta has nearly quadrupled since their trip last year. 

"It affects everybody, not just one person," Basnight told WRAL News. "So the main thing is just keep looking early, book early and just find alternative ways to get where you need to be."

Moye and Basnight said they plan to fly into Atlanta but will be renting a car and driving back to North Carolina because the prices were too steep for them. 

Delta recently announced that starting June 2, flights between Raleigh Durham International Airport (RDU) and Harry Reid International Airport in Las Vegas (LAS) are being suspended. Service is expected to resume Sept. 8.

Delta representatives said the changes were part of the airline's "routine network planning for the summer season."

Fortunately, travelers do have other options for a nonstop flight to Las Vegas. Frontier and Southwest airlines have nonstop flights to LAS from RDU. 

If your preferred airline suspends a route, you will have options to rebook with another air carrier. But you will get notice well in advance. 

The Associated Press said last-minute flight cancellations are unlikely to happen, as most fuel-related cuts are often made days or weeks in advance. That gives you more time to adjust plans than you'd typically get with weather-related disruptions. 

But if your flight does get canceled, make sure you're triple-checking your airline's app or website for rebooking options.

In most cases, airlines typically offer refunds or rebooking on the next flight if yours gets canceled. The exact rules vary by country, but those are baseline depending on the situation. In the U.S., for example, if your flight is canceled and you choose not to rebook, the airline must refund you, regardless of the reason.