St. Louis Gas Prices
Average price per gallon in the St. Louis metro (AAA’s St. Louis (MO only) area), observed Oct 22, 2026 by AAA. Regular is currently $3.81/gal — $0.14 below the Missouri average of $3.95, and $0.46 below the U.S. average of $4.27. That ranks #1 of 8 Missouri metros, cheapest first.
Regular
$3.81
Mid-grade
$4.22
Premium
$4.56
Diesel
$5.92
Regular, change:▼ −$0.01 Daily changeUnavailable wkUnavailable mo
Regular — price history
Showing Jun 6, 2026 – Oct 22, 2026
$4.15$3.49
Use arrow keys to inspect observations, Home for the first and End for the latest. The chart data is also available in the table below.View chart data (136 observations)
Showing Jun 6, 2026 – Oct 22, 2026.
136 observations. 3 missing dates between observations; gaps are left blank.
Change across shown dates: −$0.13/gal
Windows end on the latest source date, not today. Dates stay on the source calendar day in every time zone.
Diesel, change:▼ −$0.01 Daily changeUnavailable wkUnavailable mo
Diesel — price history
Showing Jun 6, 2026 – Oct 22, 2026
$6.56$4.32
Use arrow keys to inspect observations, Home for the first and End for the latest. The chart data is also available in the table below.View chart data (136 observations)
Showing Jun 6, 2026 – Oct 22, 2026.
136 observations. 3 missing dates between observations; gaps are left blank.
Change across shown dates: +$0.78/gal
Windows end on the latest source date, not today. Dates stay on the source calendar day in every time zone.
Cheaper elsewhere in Missouri?
The cheapest Missouri metros right now, from the same AAA data.
| Metro | Regular | vs St. Louis |
|---|---|---|
| St. Joseph | $3.94 | +0.14 |
| Kansas City (MO only) | $3.94 | +0.14 |
| Columbia | $3.99 | +0.19 |
| Joplin | $3.99 | +0.19 |
| Cape Girardeau | $4.01 | +0.20 |
| Springfield | $4.02 | +0.21 |