Updated April 5, 2026 — Prices updated regularly from EIA data
$2.92
Average Regular Unleaded — Lafayette, Louisiana
Current Gas Prices in Lafayette
At $$2.92 per gallon, Lafayette's current gas prices are $0.20 above the Louisiana average both the Louisiana average and the national benchmark. Savvy Lafayette drivers know where to find the best prices in town.
Fuel Type
Price / Gallon
Grade
Trend
Regular Unleaded
$2.92
87 octane
▲ Rising
Mid-Grade
$3.38
89 octane
▲ Rising
Premium
$3.65
91-93 octane
▲ Rising
Diesel
$3.95
N/A
▲ Rising
Price Comparison
Lafayette Average
$2.92
Regular Unleaded
Louisiana State Average
$2.72
$0.20 above the Louisiana average
National Average
$3.99
$1.07 below the national average
About Gas Prices in Lafayette
For Lafayette commuters filling up weekly, choosing the right station matters. Annual fuel spending for a 15-gallon weekly fill-up at ${price}/gallon totals roughly ${annualCost}. Cutting 10 cents per gallon through strategic choices saves about $78 annually — real money with zero sacrifice.
Gas Prices by Brand in This City
Estimated prices based on brand modifiers. Sorted cheapest to most expensive.
Gas price spikes in Lafayette are typically triggered by regional supply disruptions, pipeline outages, refinery maintenance, seasonal blend transitions, and global crude oil price increases. Holiday demand surges around Memorial Day, July 4th, and Labor Day also push prices up temporarily.
Premium gas in Lafayette is worth the extra cost only if your vehicle requires it. If your owner's manual says Required, always use premium. If it says Recommended, you may use regular with minimal performance loss. Never use regular in a vehicle that requires premium.
Costco offers the cheapest gas wherever it operates in the Lafayette area. Among street stations, Circle K, Speedway, and Wawa (in applicable markets) consistently offer below-average prices. Shell, Chevron, and BP typically price above the local average.
At today's Lafayette average of $$2.92 per gallon, a standard 13-gallon sedan tank costs ${fillCost} to fill. A larger 20-gallon SUV or truck tank runs ${truckFill}. Choosing the cheapest local station can save $3-5 on each fill-up.
Monday and Tuesday are statistically the cheapest days to buy gas in most US cities including Lafayette. Prices rise Thursday through Sunday as weekend driving demand increases. Filling up Tuesday afternoon before price adjustments is a reliable strategy.