Costco Gas PriceNow

Costco Seattle gas prices

This station's regular prices have fallen about $0.100 per gallon over the past month, from $5.099 to $4.999. Premium is down $0.140 over the same stretch, now at $5.559.

Today's prices

Regular
$4.999
Premium
$5.559

Per gallon, USD · updated July 22, 2026

Updated today · refreshed daily

30-day price history

Regular$4.999Premium$5.559
5.005.205.405.60Jun 23Jun 30Jul 8Jul 15Jul 22$5.559$4.999
Posted prices at Costco Seattle, past 30 days ($/gal).
View price history as a table
DateRegularPremium
July 22, 2026$4.999$5.559
July 21, 2026$4.999$5.559
July 20, 2026$4.999$5.499
July 19, 2026$4.999$5.479
July 18, 2026$4.999$5.479
July 17, 2026$4.899$5.399
July 16, 2026$4.899$5.399
July 15, 2026$4.899$5.399
July 14, 2026$4.899$5.379
July 13, 2026$4.899$5.379
July 12, 2026$4.899$5.379
July 11, 2026$4.899$5.379
July 10, 2026$4.899$5.379
July 9, 2026$4.879$5.379
July 8, 2026$4.879$5.379
July 7, 2026$4.879$5.399
July 6, 2026$4.879$5.399
July 5, 2026$4.879$5.359
July 4, 2026$4.879$5.299
July 3, 2026$4.879$5.299
July 2, 2026$4.899$5.299
July 1, 2026$4.899$5.299
June 30, 2026$4.999$5.399
June 29, 2026$4.999$5.599
June 28, 2026$4.999$5.599
June 27, 2026$5.099$5.699
June 26, 2026$5.099$5.699
June 25, 2026$5.099$5.699
June 24, 2026$5.099$5.699
June 23, 2026$5.099$5.699

Address

4401 4th Ave S
Seattle, Washington 98134-2311

Get directions

Gas station hours

Mon – Fri
6:00 AM – 10:00 PM
Saturday
6:00 AM – 8:30 PM
Sunday
6:00 AM – 7:30 PM

Warehouse hours

Mon – Fri
10:00 AM – 8:30 PM
Saturday
9:30 AM – 7:00 PM
Sunday
10:00 AM – 6:00 PM

Location

4401 4th Ave S, Seattle 98134-2311

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