Costco Seattle Gas Prices – 4th Ave S Also known as Costco SoDo
- Regular · today
- $4.959
- Premium · today
- $5.699
USD per gallon · Last updated October 31, 2026 · This station does not sell diesel
4401 4th Ave S, Seattle, WA 98134-2311 · Open in Maps ↗
30-day range
where today sits- Regular$4.959 today · avg $5.257$4.959 low$5.399 high
- Premium$5.699 today · avg $5.818$5.659 low$5.999 high
Price history at Seattle
Last 30 days · USD per gallonRegular: $5.399 on Oct 2 to $4.959 on Oct 31, low $4.959, high $5.399. Premium: $5.899 on Oct 2 to $5.699 on Oct 31, low $5.659, high $5.999.
Last updated October 31, 2026. Prices are collected once daily and can lag same-day changes at the pump.
Today’s price in context
At $4.959 for Regular, Seattle is the 2nd most expensive of 34 Costco gas stations in Washington today, $0.279 above the Washington average of $4.680.
Tukwila, 9.1 mi away, is $0.060 cheaper.
- vs the US average
- $0.684 above, at $4.275
- Premium over Regular
- $0.740 — the Washington median is $0.600
- Regular over the last 30 days
- down $0.440
- Days the price changed
- 9 of 30 reported days
- Latest day at the 30-day low
- today, at $4.959
- 15-gallon fill
- $74.38 — the cheapest it has been in 30 days
- Nearest cheaper station
- Tukwila — 9.1 mi
Seattle is located at 4401 4th Ave S, Seattle, WA 98134-2311, in Washington. Drivers also call it Costco SoDo. The gas station sits in the warehouse parking lot and is open to Costco members, selling Regular and Premium — this location does not sell diesel. Gas station hours are 6 a.m. – 10 p.m. on weekdays, 6 a.m. – 8:30 p.m. on Saturdays and 6 a.m. – 7:30 p.m. on Sundays, in local time.
Station details
Seattle Gas station hours
- Mon–Fri
- 6 a.m. – 10 p.m.
- Saturday
- 6 a.m. – 8:30 p.m.
- Sunday
- 6 a.m. – 7:30 p.m.
Seattle Warehouse hours
- Mon–Fri
- 10 a.m. – 8:30 p.m.
- Saturday
- 9:30 a.m. – 7 p.m.
- Sunday
- 10 a.m. – 6 p.m.
Cities near Seattle
- Costco gas prices Tukwila · WA · 9 mi$4.899
- Costco gas prices Kirkland · WA · 11 mi$4.899
- Costco gas prices Issaquah · WA · 13 mi$4.899
- Costco gas prices Redmond · WA · 13 mi$4.899
- Costco gas prices Shoreline · WA · 15 mi$4.599
- Costco gas prices Woodinville · WA · 17 mi$4.599
- Costco gas prices Silverdale · WA · 17 mi$4.799
- Costco gas prices Covington · WA · 18 mi$4.899
At this location
- Warehouse opened
- September 1983
- Warehouse phone
- (206) 622-3136
- Car wash
- 6 a.m. – 8:30 p.m. weekdays, 7 a.m. – 7 p.m. Saturdays and 7 a.m. – 7 p.m. Sundays
- Pumps open early
- 4 hours before the warehouse on weekdays
Also at this warehouse: a food court, a pharmacy, an optical department, a hearing aid center and a tire center.
Frequently asked questions
How much is gas at Costco Seattle today?
As of October 31, 2026: Regular $4.959 and Premium $5.699 per gallon. Prices are collected once a day, so the pump can differ.
What time does the Costco Seattle gas station open?
The pumps are open 6 a.m. – 10 p.m. weekdays, 6 a.m. – 8:30 p.m. Saturdays and 6 a.m. – 7:30 p.m. Sundays, in local time. The pumps open 4 hours before the warehouse on weekdays.
Does the Costco Seattle gas station sell diesel?
No — this station sells Regular and Premium, and has reported no diesel price in the last 30 days.
Is Costco Seattle cheaper than the average Costco station in Washington?
No — at $4.959, Regular here is $0.279 above the average Costco price in Washington, $4.680.
Is there a car wash at Costco Seattle?
Yes — the car wash is open 6 a.m. – 8:30 p.m. weekdays, 7 a.m. – 7 p.m. Saturdays and 7 a.m. – 7 p.m. Sundays.
Do you need a Costco membership to buy gas?
Yes — a Gold Star, Executive or Business membership card has to be scanned at the pump before it will dispense, though a Costco Shop Card also works for non-members.
What payment methods does the Costco gas station accept?
Visa, PIN debit and the Costco Shop Card; US Costco fuel pumps take no cash and no Mastercard, American Express or Discover.
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