Ontario gas prices are set to drop tomorrow and these spots will have the biggest savings
A couple of cities are actually going up!

Here's where to find the cheapest gas in Ontario tomorrow.
Head's up, Ontario drivers! If you've been holding off on filling your tank, tomorrow might be the perfect time to head to the pumps, because gas prices in Ontario are set to drop tomorrow in several regions.
Whether you're commuting daily or planning a road trip, these changes to gas prices tomorrow in Toronto, Ottawa, Windsor, Sudbury and more cities across the province could make a difference in your wallet.
According to gas price predictions site Gas Wizard, multiple cities across Ontario will see a decrease in gas prices on Thursday, February 27 — with some cities seeing bigger price drops than others.
While some areas will only see a slight dip, others are in for more noticeable savings. But there are two cities where gas prices are actually going up — so if you're in those areas, you might want to fill up today instead.
Here's everything you need to know about Ontario gas prices for today and tomorrow.
Are gas prices going up or down tomorrow?
Gas Wizard predicts that many parts of southern Ontario — including Toronto, Ottawa and Mississauga — will see regular gas prices drop by about 2 cents a litre. Meanwhile, in southwestern Ontario, Windsor is expected to see a slightly larger drop of 3 cents per litre.
Here's a look at what some regions can expect, according to Gas Wizard:
- Cornwall: Regular gas is expected to drop by 1 cent to 143.9 cents per litre.
- Windsor: This city will see a 3-cent drop, bringing regular gas to 144.9 cents per litre.
- Peterborough: No change here, with regular gas staying at 145.9 cents per litre.
- London: Drivers can expect a 2-cent dip, bringing prices to 146.9 cents per litre.
- Barrie, Brampton, Hamilton, Mississauga, Niagara, Oshawa, St. Catharines & Waterloo: Regular gas is expected to drop by 2 cents in all these spots to 147.9 cents per litre.
- Kingston: This is one of the few spots that's set to see an increase tomorrow, with regular gas rising by a whopping 7 cents to 148.9 cents a litre.
- Ottawa: A 2-cent decrease will bring regular gas to 150.9 cents per litre.
- Thunder Bay: No change, with regular gas staying at 150.9 cents per litre.
- Toronto & GTA: Regular gas is set to drop by 2 cents, bringing average prices to 151.9 cents per litre.
- Markham & Oakville: These two spots are expected to see a 2-cent decrease, with regular gas coming in at 151.9 cents a litre tomorrow.
- Sudbury: This is the only other city where prices are expected to increase — drivers here will see a 3-cent hike, bringing gas up to 152.9 cents per litre.
Premium fuel is following a similar pattern, with most regions seeing a 2-cent decrease — except for Niagara, where premium gas is set to drop by a whopping 35 cents per litre. If this holds true, Niagara drivers will actually be able to fuel up with premium for cheaper than regular tomorrow!
Meanwhile, diesel prices are mostly holding steady, with only minor 1- to 2-cent changes in some cities.
Where will gas be the cheapest in Ontario?
If you're looking for the lowest gas prices in the province, Cornwall is set to be the cheapest spot tomorrow, with regular gas sitting at 143.9 cents per litre. Windsor is also looking pretty good, with a 3-cent drop bringing prices to 144.9 cents per litre.
Meanwhile, Toronto will still have some of the highest prices in the province at 151.9 cents per litre — so if you're driving through a cheaper city, it might be worth filling up there.
Currently, according to GasBuddy, the cheapest gas in Ontario is at Smokin Coffee Xpress at 161 Hwy. 49 in Deseronto, where the price of regular is reportedly 124.9 cents per litre.
How do tomorrow's gas prices in Ontario compare to recent trends?
Gas prices in Ontario have been fluctuating lately, and tomorrow's drop aligns with some of the trends we've been seeing. According to GasBuddy, the average price for regular gas in Ontario today (Wednesday, February 26) is 149.3 cents per litre. That's up by 1.3 cents from yesterday but slightly down from last week's average of 150.0 cents per litre.
Looking at historical trends, Ontario's highest average gas price this year was 151.6 cents per litre on February 14 — although that's nothing compared to the record-high 211.5 recorded back in June 2022. Meanwhile, the lowest average price in the province this year was 145.6, on January 1.
Why are gas prices so high?
Gas prices can change daily based on several factors, including global crude oil prices, refining costs and retail markups. Taxes also play a big role — the federal carbon tax alone currently adds around 17.6 cents per litre to the pump price, and it's set to increase each April.
Seasonal shifts also impact fuel costs. In the spring, many stations will start switching over to summer-blend gasoline, which typically costs more to produce but offers better fuel efficiency. The transition from winter-blend gas — which contains more butane to help it combust better in cold weather — can sometimes lead to price fluctuations.
Should you fill up now or wait?
If you're in a city where gas prices are dropping tomorrow, it might be worth holding off on filling up until then to take advantage of the savings. However, if you're in Kingston or Sudbury, where prices are expected to increase, you might want to fill up today before the hike.
With some regions seeing notable price dips and others holding steady, it's always good to keep an eye on daily price predictions to make the most of your fuel budget.
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