Costco Gas Prices in Tukwila, Washington
Tukwila · Warehouse #6
400 COSTCO DR STE 150, Tukwila, Washington 98188-4808
Prices updated: September 4, 2026 at 10:00 PM
Regular
$5.399
PRICE PER GALLON
Press
Premium
$5.959
PRICE PER GALLON
Press
Diesel
$6.599
PRICE PER GALLON
Press
Current gas prices at Costco #6
This Costco gas station is located at 400 COSTCO DR STE 150 in Tukwila, Washington. The latest reported fuel prices are regular at $5.399/gal, premium at $5.959/gal, diesel at $6.599/gal. Prices were last updated on September 4, 2026 at 10:00 PM.
Get directions to this Costco gas station30-Day Price History
30-day change
Regular
$5.399+0.300 (5.9%)
Premium
$5.959+0.260 (4.6%)
Diesel
$6.599+0.500 (8.2%)
DateRegPremDiesel
Sep 4, 10:00 PM$5.399$5.959$6.599
Sep 4, 9:00 PM$5.359$5.959$6.599
Sep 3, 4:00 PM$5.359$5.959$6.559
Sep 2, 3:00 PM$5.359$5.899$6.559
Sep 1, 9:00 PM$5.359$5.899$6.499
Sep 1, 4:00 PM$5.359$5.859$6.399
Sep 1, 3:00 PM$5.299$5.799$6.299
Aug 31, 8:00 PM$5.299$5.799$6.199
Aug 30, 9:00 PM—$5.799—
Aug 30, 8:00 PM$5.299$5.799$6.199
Aug 30, 4:00 PM$5.269$5.799$6.199
Aug 28, 4:00 PM$5.259$5.749$6.199
Aug 27, 5:00 PM$5.259$5.749$6.169
Aug 26, 4:00 PM$5.299$5.799$6.169
Aug 24, 7:00 PM$5.299$5.799$6.099
Aug 24, 3:00 PM$5.299$5.799$5.999
Aug 21, 8:00 PM$5.299$5.699$5.999
Aug 21, 5:00 PM$5.299$5.639$5.999
Aug 20, 5:00 PM$5.299$5.599$5.999
Aug 17, 7:00 PM$5.199$5.699$5.999
Aug 17, 5:00 PM$5.299$5.659$5.999
Aug 16, 6:00 PM$5.199$5.659$5.899
Aug 14, 8:00 PM$5.099$5.599$5.999
Aug 14, 4:00 PM$4.999$5.499$5.999
Aug 11, 4:00 PM$5.099$5.599$5.999
Aug 10, 8:00 PM$5.099$5.599$6.059
Aug 9, 6:00 PM$5.099$5.599$5.999
Aug 8, 6:00 PM$5.099$5.699$5.999
Aug 7, 9:00 PM$5.169$5.699$5.999
Aug 6, 3:00 PM$5.099$5.699$6.099