Costco Gas Prices in Hawaii
- Regular avg
- $5.207▼ −$0.017
- Premium avg
- $5.692▼ −$0.017
- Diesel avg
- $6.899
- Stations reporting
- 6
Avg of 6 stations · per gallon · ▲▼ change since the previous day
Average price history in Hawaii
Last 30 days · per gallonRegular: $5.319 on Oct 2 to $5.207 on Oct 31, low $5.207, high $5.406. Premium: $5.826 on Oct 2 to $5.692 on Oct 31, low $5.692, high $5.941. Diesel: $6.899 on Oct 2 to $6.899 on Oct 31, low $6.899, high $7.099.
Costco gas in Hawaii today
Costco gas stations in Hawaii include the warehouses in Honolulu, Kahului, Kailua Kona, Kapolei, Lihue, and Waipahu.
Today’s Regular prices span $0.700 across the 6 stations reporting, from the cheapest to the most expensive.
2 stations are tied at today’s lowest price.
Costco Regular prices in Hawaii have eased about $0.112 over the past month, from $5.319 a month ago.
The furthest any single station moved was Iwilei, down $0.160.
- Cheapest today
- Kapolei — $4.999
- Most expensive today
- Kauai — $5.699
- vs the US average
- $0.932 above, at $4.275
- Diesel
- sold at 1 of 6 stations
- EV charging
- Maui
- Newest warehouse
- Kapolei — February 2009
- Oldest warehouse
- Iwilei — May 1988
Hawaii stations by price
Cheapest first — page through to see more.
Fuel grades at Costco in Hawaii
All 6 Costco gas stations in Hawaii sell Kirkland Signature fuel, which is Top Tier certified. Diesel is sold at 1 of the 6.
| Grade | Stations | Avg today | Cheapest |
|---|---|---|---|
| Regular | 6 | $5.207 | Waipio $4.999 |
| Premium | 6 | $5.692 | Waipio $5.399 |
| Diesel | 1 | $6.899 | Kona $6.899 |
Regular
all 6 stations87-octane Kirkland Signature unleaded, the grade most cars are built for.
- Same TOP TIER detergent package as premium. The only difference between the two is octane.
- Can contain up to 10% ethanol, like most US gasoline. The pump label shows the blend.
Premium
all 6 stationsKirkland Signature premium: 91 octane at most stations, 93 in some regions.
- Only needed if your owner’s manual requires or recommends premium. Higher octane resists engine knock; it adds nothing to an engine built for regular.
- Carries the same detergent additives as regular.
Diesel
1 of 6 stationsKirkland Signature diesel, ultra-low-sulfur like all on-road diesel in the US.
- Costco says its diesel additives clean deposits from fuel injectors, keep new ones from forming and help reduce engine wear.
Not sold at Costco
- Mid-grade (89): Costco pumps offer regular and premium only.
- Cash sales: every Costco pump is card-only.
Is Costco gas in Hawaii good quality?
Costco does not sell a refiner’s brand. Every pump in Hawaii dispenses Costco’s own Kirkland Signature fuel, bought from major refiners and distributors in the region and finished with Costco’s additive package.
Kirkland Signature gasoline is licensed TOP TIER, the detergent standard set by automakers including GM, Ford, Toyota, Honda and BMW. Costco puts its detergent level at about five times the EPA minimum, which is what keeps intake valves and fuel injectors clear of carbon deposits. Costco’s gasoline also contains friction modifiers that it says reduce engine wear.
In short, the low price is not a lower grade. The saving comes from Costco running its gas as a membership perk on thin margins, not from the fuel.
Costco gas station hours in Hawaii
On weekdays the earliest pumps in Hawaii come on at 4:30 a.m. (Iwilei) and the last ones switch off at 10:30 p.m. (Iwilei). Pump hours run longer than the warehouse's, and weekends are shorter. Times are local.
| Station | Mon–Fri | Sat | Sun |
|---|---|---|---|
| Iwilei | 4:30 a.m. – 10:30 p.m. | 4:30 a.m. – 8:30 p.m. | 4:30 a.m. – 8:30 p.m. |
| Kapolei | 5 a.m. – 10 p.m. | 5 a.m. – 8:30 p.m. | 5 a.m. – 7:30 p.m. |
| Kauai | 5:30 a.m. – 10 p.m. | 6 a.m. – 8:30 p.m. | 6 a.m. – 7:30 p.m. |
| Kona | 4:30 a.m. – 10 p.m. | 4:30 a.m. – 8:30 p.m. | 4:30 a.m. – 7:30 p.m. |
| Maui | 5:30 a.m. – 10 p.m. | 6 a.m. – 8:30 p.m. | 6 a.m. – 7:30 p.m. |
| Waipio | 5 a.m. – 10 p.m. | 5 a.m. – 8 p.m. | 5 a.m. – 7:30 p.m. |
What else is at Costco warehouses in Hawaii
Every Costco gas station sits in a warehouse parking lot, so a fill-up can share a trip with the rest of the list. EV charging is on site at one.
- Food court
- 6 of 6
- Pharmacy
- 6 of 6
- Optical
- 6 of 6
- Tire center
- 6 of 6
- Car wash
- 0 of 6
- EV charging
- 1 of 6
EV charging: Maui.
How Costco gas works in Hawaii
Bring your card. The pump asks for an active Costco membership card before it starts, at all 6 gas stations in Hawaii. Without a membership, a Costco Shop Card loaded with credit works the same way.
Pay by card. The pumps take Visa, most debit cards and the Costco Shop Card. There is no cash, and a card hold of up to $150 can show until the fill posts.
Check the price first. Each station sets its own price, usually once a day, so two Costco stations in Hawaii can differ. Today the regular average here is $5.207. The prices on this page are collected once daily and can lag a same-day change at the pump.
Go early or late. Lines are longest on weekend afternoons and weekday evenings. The first pumps here open at 4:30 a.m. on weekdays.
Hawaii prices by city
States near Hawaii
- Costco gas prices California · 129 stations$5.453
- Costco gas prices Oregon · 13 stations$4.442
- Costco gas prices Nevada · 9 stations$4.752
- Costco gas prices Washington · 34 stations$4.680
- Costco gas prices Alaska · 3 stations$4.306
- Costco gas prices Idaho · 7 stations$4.220
Costco gas in Hawaii: common questions
Where is the cheapest Costco gas in Hawaii today?
Kapolei posts the lowest Regular price in Hawaii, $4.999 as of the October 31, 2026 reading — $0.700 under Kauai, the most expensive of the 6 stations reporting. It shares that price with 1 other station.
How many Costco gas stations are there in Hawaii?
Hawaii has 6 Costco warehouses with a gas station, across 6 cities, and all of them reported a price in the last 30 days.
Which Costco gas stations in Hawaii sell diesel?
Diesel is sold at 1 of 6 stations in Hawaii. Each station page lists the grades that warehouse has actually posted a price for in the last 30 days.
Is Costco gas cheaper in Hawaii than in the US?
No — the average Costco Regular price in Hawaii is $5.207, $0.932 above the US average of $4.275 as of the October 31, 2026 reading.
Are Costco gas prices in Hawaii going up or down?
Down — the average Costco Regular price in Hawaii has eased about $0.112 over the past month, from $5.319 to $5.207.
Which Costco gas station in Hawaii opens earliest?
Iwilei and Kona open at 4:30 a.m. on weekdays, the earliest of the 6 stations in Hawaii that publish gas-station hours.