Hawaii Gas Prices
Average retail price · Source: AAA · Updated daily
Today's Average
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per gallon · regular unleaded
Hawaii is consistently the most or second-most expensive state for gas despite a low state tax, because 100% of fuel must be shipped by tanker from the mainland or refined locally at Hawaii's sole refinery. The Jones Act — requiring US-flagged ships for inter-state cargo — adds significant shipping costs.
⛽ Gas Tax: 16¢/gallon
Ranked #2 most expensive nationally
Top Gas Station Chains in Hawaii
CostcoAloha PetroleumHeleShellTexaco
Top Hawaii Cities for Gas Prices
Hawaii Gas Price FAQ
Why is Hawaii gas so expensive?
Hawaii pays a massive transportation premium because all petroleum must arrive by ocean tanker. The Jones Act requires US-flagged vessels for inter-state shipping, limiting competition and keeping freight costs high. There's also only one refinery on Oahu, reducing local supply competition.
Is Costco gas worth it in Hawaii?
Costco in Hawaii offers the single biggest savings on gas of any state — often 30-50¢ below the local average. The Honolulu Costco station frequently has long lines because the savings are so substantial relative to island prices.
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Gas Prices by City in Hawaii
Hawaii Gas Price — Frequently Asked Questions
What is the average gas price in Hawaii today?
Hawaii gas prices are updated daily from AAA data. Check back for today's average.
Why are gas prices lower in Hawaii than the national average?
Hawaii's prices are consistently the highest in the nation due to its remote island location, requiring all fuel to be shipped in, plus state taxes and limited refinery competition.
What is Hawaii's gas tax?
Hawaii's state gas tax is approximately 17¢ per gallon, one of the lowest in the United States. This is a combined state excise tax and in some states includes local levies. The federal gas tax adds an additional 18.4¢/gal on top of state taxes.
When is the cheapest time to buy gas in Hawaii?
Gas prices in Hawaii — like across the US — tend to be lowest on Mondays and Tuesdays, when weekly demand is lowest. Prices typically rise Thursday through Saturday as weekend travel demand increases. Avoiding fill-ups on Fridays and Saturdays can save 3–8¢/gal on average. Hawaii prices also tend to be lower in late fall and winter when summer-blend fuel requirements end.
Which cities in Hawaii have the cheapest gas?
Gas prices vary by city within Hawaii based on local competition, distance from fuel terminals, and population density. Use our city pages to compare prices across Hawaii: cities farther from major metro areas and distribution hubs often have slightly higher prices due to transport costs, while high-competition suburban areas near major highways tend to be cheapest.