This Thanksgiving’s national gas price average is shaping up to be the lowest since 2015 at $2.10, according to the AAA.

“AAA forecasted a decrease in Thanksgiving travel year-over-year due to increasing COVID-19 positive case numbers, renewed quarantine guidelines and the latest CDC guidance. All of this has prompted Americans, who had plans to travel, to reconsider spending the holiday at home,” said Jeanette Casselano, AAA spokesperson.

Today, nearly half of all states have gas price averages that are 50 to 75 cents cheaper than a year ago. West coast states are seeing the biggest year-over-year savings, while the majority of southern states’ averages are $1.99 a gallon or less, AAA said. Gas prices are expected to continue to push less expensive heading into December.

The nation’s top 10 largest yearly decreases were Nevada (down 72 cents), California (down 71 cents), Arizona (down 70 cents), Idaho (down 68 cents), Alaska (down 68 cents), Utah (down 66 cents), Colorado (down 65 cents), Oregon (down 64 cents), Indiana (down 60 cents) and Washington (down 60 cents).

Meanwhile, the nation’s least expensive markets are Missouri ($1.75), Texas ($1.79), Oklahoma ($1.79), Mississippi ($1.79), Arkansas ($1.82), Louisiana ($1.83), Tennessee ($1.85), Alabama ($1.85), Kansas ($1.86) and South Carolina ($1.87).