Costco gas prices in Ontario
Ontario average
- Regular
- 1657¢
- Premium
- 1889¢
- Diesel
- 1999¢
Average across 27 stations, per litre · updated July 22, 2026
Costco has 27 gas stations in Ontario — the cheapest regular today is 154.9¢/L at Costco Orillia in Orillia. Ontario Costco regular prices have climbed about 17.2¢ per litre over the past month, from 148.5¢ to 165.7¢. Premium is up 14.4¢ over the same stretch, now at 188.9¢. Diesel is up 31.0¢ over the same stretch, now at 199.9¢.
Gas stations
27
Ontario
Avg regular
165.7¢
per litre, CAD
Cheapest now
154.9¢
Costco Orillia
30-day price trend
Regular165.7¢Premium188.9¢Diesel199.9¢
View price history as a table
| Date | Regular | Premium | Diesel |
|---|---|---|---|
| July 22, 2026 | 165.7¢ | 188.9¢ | 199.9¢ |
| July 21, 2026 | 165.4¢ | 189.2¢ | 199.9¢ |
| July 20, 2026 | 165.2¢ | 189.2¢ | 199.9¢ |
| July 19, 2026 | 161.7¢ | 185.4¢ | 194.9¢ |
| July 18, 2026 | 162.7¢ | 186.0¢ | 194.9¢ |
| July 17, 2026 | 161.2¢ | 184.9¢ | 194.9¢ |
| July 16, 2026 | 158.4¢ | 182.6¢ | 184.9¢ |
| July 15, 2026 | 153.9¢ | 178.6¢ | 179.9¢ |
| July 14, 2026 | 153.0¢ | 178.8¢ | 173.9¢ |
| July 13, 2026 | 154.4¢ | 177.7¢ | 199.9¢ |
| July 12, 2026 | 155.6¢ | 179.1¢ | 199.9¢ |
| July 11, 2026 | 155.7¢ | 179.3¢ | 199.9¢ |
| July 10, 2026 | 152.0¢ | 176.3¢ | 173.9¢ |
| July 9, 2026 | 152.3¢ | 178.2¢ | 173.9¢ |
| July 8, 2026 | 150.0¢ | 176.1¢ | 168.9¢ |
| July 7, 2026 | 150.6¢ | 176.0¢ | 165.9¢ |
| July 6, 2026 | 150.5¢ | 174.9¢ | 168.9¢ |
| July 5, 2026 | 150.7¢ | 175.8¢ | 168.9¢ |
| July 4, 2026 | 152.8¢ | 176.0¢ | 168.9¢ |
| July 3, 2026 | 149.4¢ | 175.6¢ | 168.9¢ |
| July 2, 2026 | 150.9¢ | 176.1¢ | 168.9¢ |
| July 1, 2026 | 147.4¢ | 175.0¢ | 168.9¢ |
| June 30, 2026 | 148.2¢ | 175.6¢ | 175.9¢ |
| June 29, 2026 | 148.1¢ | 176.7¢ | 168.9¢ |
| June 28, 2026 | 148.9¢ | 177.4¢ | 168.9¢ |
| June 27, 2026 | 146.6¢ | 176.9¢ | 168.9¢ |
| June 26, 2026 | 147.2¢ | 173.7¢ | 168.9¢ |
| June 25, 2026 | 148.7¢ | 174.7¢ | 160.9¢ |
| June 24, 2026 | 148.6¢ | 174.2¢ | 165.9¢ |
| June 23, 2026 | 148.5¢ | 174.5¢ | 168.9¢ |
Cities with multiple stations
All stations in Ontario
All 27 stations, sorted by regular price from lowest to highest. Prices in ¢/L.
| Rank | Station | Regular | Premium | Diesel |
|---|---|---|---|---|
| 1 | Costco OrilliaOrillia | 154.9¢ | 179.9¢ | — |
| 2 | Costco SudburySudbury | 157.9¢ | 179.9¢ | — |
| 3 | Costco Niagara FallsNiagara Falls | 159.9¢ | 184.9¢ | — |
| 4 | Costco PeterboroughPeterborough | 159.9¢ | 184.9¢ | — |
| 5 | Costco N MississaugaMississauga | 161.9¢ | 186.9¢ | — |
| 6 | Costco Scarborough ONScarborough | 161.9¢ | 186.9¢ | — |
| 7 | Costco N OshawaOshawa | 162.9¢ | 187.9¢ | — |
| 8 | Costco OshawaOshawa | 162.9¢ | 187.9¢ | — |
| 9 | Costco BarrieBarrie | 163.9¢ | 189.9¢ | — |
| 10 | Costco NewmarketNewmarket | 164.9¢ | 189.9¢ | — |
| 11 | Costco NW VaughanWoodbridge | 164.9¢ | 189.9¢ | — |
| 12 | Costco Stoney CreekStoney Creek | 165.9¢ | 189.9¢ | — |
| 13 | Costco BarrhavenNepean | 166.9¢ | 189.9¢ | — |
| 14 | Costco BrantfordBrantford | 166.9¢ | 189.9¢ | — |
| 15 | Costco GloucesterGloucester | 166.9¢ | 184.9¢ | — |
| 16 | Costco NepeanNepean | 166.9¢ | 189.9¢ | — |
| 17 | Costco WaterlooWaterloo | 166.9¢ | 191.9¢ | — |
| 18 | Costco WindsorWindsor | 167.9¢ | 187.9¢ | — |
| 19 | Costco NW TorontoEtobicoke | 168.9¢ | 189.9¢ | — |
| 20 | Costco AncasterAncaster | 169.9¢ | 192.9¢ | — |
| 21 | Costco C MississaugaMississauga | 169.9¢ | 189.9¢ | — |
| 22 | Costco EtobicokeEtobicoke | 169.9¢ | 192.9¢ | — |
| 23 | Costco GuelphGuelph | 169.9¢ | 192.9¢ | — |
| 24 | Costco N LondonLondon | 169.9¢ | 192.9¢ | 199.9¢ |
| 25 | Costco S LondonLondon | 169.9¢ | 192.9¢ | — |
| 26 | Costco VaughanWoodbridge | 169.9¢ | 189.9¢ | — |
| 27 | Costco AjaxAjax | 171.9¢ | 192.9¢ | — |
Showing 1–10 of 27 stations