Montréal vs Ottawa-Gatineau gas prices
Montréal vs Ottawa-Gatineau gas pricesRegular gasoline is C$0.14 a litre cheaper in Ottawa-Gatineau — C$7.87 on a 55-litre tank. Monthly city averages for June 2026.
| Grade | Montréal | Ottawa-Gatineau | Diff. | |
|---|---|---|---|---|
| Regular | C$1.79 | C$1.65 | C$0.14Ottawa-Gatineau | Ottawa-Gatineau |
| Premium | C$2.06 | C$1.95 | C$0.11Ottawa-Gatineau | Ottawa-Gatineau |
| Diesel | C$2.21 | C$1.91 | C$0.30Ottawa-Gatineau | Ottawa-Gatineau |
What the gap is worth
Based on the June 2026 gap of C$0.14 per litre, which changes each month. Run your own numbers →
Quebec vs Ontario
Because the two cities sit in different provinces, most of the gap is tax. Provinces set fuel tax independently, and metropolitan transit levies sit on top in Metro Vancouver, Greater Montréal and Victoria. Wholesale gasoline itself costs much the same across the country.
Other comparisons
Frequently asked questions
Is gas cheaper in Montréal or Ottawa-Gatineau?
Ottawa-Gatineau, at C$1.65 a litre against C$1.79 in Montréal — a gap of C$0.14/L, or 8.7%. On a 55-litre tank that is C$7.87. These are Statistics Canada monthly averages for June 2026, not live station prices.
Why is gas more expensive in Montréal?
Chiefly provincial fuel tax and local levies. Quebec and Ontario set their own fuel taxes independently, and several metropolitan areas add a transit levy on top — Metro Vancouver's is the largest in the country. Wholesale fuel costs vary far less between Canadian cities than the pump prices suggest.
Is diesel cheaper in Montréal or Ottawa-Gatineau?
Diesel is cheaper in Ottawa-Gatineau at C$1.91 a litre, against C$2.21 in Montréal — C$0.30/L apart.
How current are these figures?
They are the Statistics Canada averages for June 2026, published roughly three weeks after the month ends. Pump prices in both cities have moved since. Use them to compare the two cities, which is what a monthly average is good for — not to decide what you will pay this afternoon.