Ottawa gas prices this week

For the week of September 28, Ontario's survey recorded 175.9¢/L for regular in Ottawa; the change from the prior week was −1.2¢. Compared with 135.6¢/L a year ago, Ottawa is +40.3¢ a litre.

Ranked against 13 markets, Ottawa is 3rd cheapest (−3.9¢ versus Ontario's 179.8¢/L). Low and high since five years ago, Ottawa: 121.6¢/L on December 29, 2025, 214.2¢/L on June 6, 2022.

Ottawa faces Gatineau across the Ottawa River, so drivers here can compare against Quebec's live station prices a few kilometres away. In 2026, Ottawa sat at Ontario's cheap end for one week and at its dear end for zero weeks; across a full year of surveys it averaged −0.8¢ versus the province. Largest week-on-week increase in Ottawa during 2026: +20.5¢ (March 9).

Ottawa diesel: 254.9¢/L, or 79.0¢/L more than regular per litre. Net move over four weeks in Ottawa: −1.2¢ (from 177.1¢/L). Premium sits 29.4¢/L above regular at 205.3¢/L.

Across the river, Gatineau pays Quebec's higher fuel tax: see the two cities side by side.