Latest available Costco gas prices for Thornton.
Current Gas Prices:
- Regular: $3.799
- Premium: $4.399
Last successful update: September 3, 2026 9:12 am GMT+0000.
Location
Address: 16375 N. WASHINGTON ST, Thornton, Colorado 80023-8907
Phone: (303) 474-3247
Opening Hours
Gas Station:
Mon-Fri: 6:00 AM – 10:00 PM
Warehouse:
Mon-Fri: 10:00 AM – 8:30 PM
FAQ About Thornton, Colorado
When is the best time to visit the Thornton Costco gas station to avoid long lines?
Early mornings on weekdays tend to be quieter at the Thornton Costco gas pumps. Planning your fueling during these off-peak hours can help you avoid the busiest times and reduce wait times.
How can I plan my Thornton commute to include a Costco gas stop without adding extra time?
Consider fueling up at Costco right before or after rush hour to minimize delays. Stopping just before entering major highways from Thornton can make your trip more efficient by combining errands with your commute.
What’s a good strategy for making family errands in Thornton more efficient with a Costco fuel stop?
Group your Costco gas visit with nearby shopping or school pickups in Thornton. This way, you reduce multiple trips across town and save time by combining errands into a single outing.
How should I prepare for potential weather-related slowdowns when planning to fuel at Costco in Thornton?
During winter storms or heavy rain in Thornton, expect longer wait times at Costco gas stations. Fuel up early in the day and keep your tank topped to avoid last-minute rushes during poor weather conditions.
Is there a backup fueling window at Thornton Costco if I miss the usual off-peak hours?
Late evenings on weekdays can serve as a secondary quiet time to fill up at Costco in Thornton. While not as calm as early mornings, this window often sees fewer customers compared to midday or weekend afternoons.
How can I reduce repeated cross-town driving when using Costco gas in Thornton?
Plan your route to combine Costco fueling with other errands on the same side of Thornton. Grouping stops strategically helps minimize unnecessary back-and-forth trips and saves both time and fuel.