Drivers nationwide are paying an average of $3.66 a gallon, almost 20 cents more than last year's average.
In Missouri, prices are coming in at just under $3.47 a gallon, which is up from last year's price of $3.27.
Across the border in Kansas, the average price for a gallon is right at $3.50, up 15 cents from last year.
Gas Market analysts credit the recent crisis in Iraq with the rising price of crude oil.
But despite the rising prices at the pump, it hasn't slowed down holiday traffic over the weekend.
According to AAA, as many as 80 percent of travelers are expected to make their journey by car this weekend.
Plenty of travelers along I-29 have stopped in St. Joseph.
And while many drivers say they aren't letting the price of gas put a damper on their holiday plans, they are keeping a closer eye on what they're paying at the pump.
"This is the first time I've ever actually kept all my receipts," said John Nelson, a traveler from Chattanooga, Tennessee. "I'm really going to be curious how much it costs to drive all the way out here and all the way back home."
In St. Joseph, the price for a gallon of gas ranges from as low as $3.31 to as high as $3.45 a gallon.