London gas prices this week

London regular: 181.1¢/L a litre in the survey dated September 28, a move of −1.5¢ in seven days. Twelve months ago London sat at 136.4¢/L; year over year: +44.7¢.

Lowest first, London comes 9th of 13; that is +1.3¢ relative to the provincial 179.8¢/L. London has swung between 122.8¢/L (December 22, 2025) and 212.7¢/L (June 6, 2022) in five years of surveys.

London sits on Highway 401 in southwestern Ontario, roughly halfway between Toronto and Windsor. London's structural gap to the provincial average across the last 52 weeks: +1.8¢. In 2026 it ranked cheapest of the 13 markets for zero weeks, dearest for 14 weeks. London's biggest one-week jump this year: +20.3¢, recorded for the week of March 9.

Diesel was 244.9¢/L in London the same week, 63.8¢/L above regular. Four weeks ago London was at 183.7¢/L; the net change since is −2.6¢. Premium: 211.7¢/L, 30.6¢/L above regular.