Costco – 3680 E Guasti Rd

91761 Ontario, California

Fuel prices

FuelPricevs. average
Regular$5.059±$0.00
Premium$5.499±$0.00

Cheaper station nearby

No cheaper station within 5.0 mi.

Price history (30 days)

We are still collecting history for this page.

Station details

Address
3680 E Guasti Rd, 91761 Ontario
Opening hours
Mon-Fri 6:00am - 10:00pm; Sat 6:00am - 8:30pm; Sun 6:00am - 7:30pm
Directions ↗
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Updated Nov 7, 2026, 08:21 AM EST