Road trips are fun. They can also be expensive if gas prices go up. But road trips aren't getting more expensive any time soon.

The average price for a gallon of gas is fairly steady in South Dakota this week at $2.14 per gallon. That is up 3 cents since last week and is a dime higher than one month ago. At this time in 2019, we were paying $2.74 per gallon.

“During the last month, demand has averaged about 8.6 million b/d while gasoline stocks have steadily declined,” said Marilyn Buskohl, AAA spokesperson in a press release. “Week by week, we are seeing mostly regional fluctuation at the pump based on gasoline supply and demand.”

In Sioux Falls the average price per gallon is $2.13 per gallon. A week ago the average price was $2.12 per gallon and a month ago it was $2.09 per gallon.

The cheapest gas in Sioux Falls can be found at Costco for $1.86 per gallon. The top three cheapest gas right now is:

  1. Costco - $1.86
  2. Casey's on East Benson - $1.95
  3. Sinclair on North Cliff - $1.95

If you are traveling across the state to the Black Hills you will pay a little more for gas. In Rapid City, the average price for gas is up 14 cents to $2.22 per gallon. A week ago it was just $2.06 per gallon and a month ago it was only $1.89 per gallon.