If you’ve filled up in Thunder Bay lately, you’ve probably winced at the pump. Northern Ontario drivers routinely pay more than the provincial average, and the gap between city stations and outlying areas tells a story about logistics, taxes, and competition.

4 related posts

Current Thunder Bay price: 165.0-171.0 cents/L (NetNewsLedger, May 11) ·
Ontario fuel tax: 14.7 cents/L (Government of Ontario) ·
Canada avg (May 4, 2026): Refer to globalpetrolprices.com data

Quick snapshot

1Confirmed facts
2What’s unclear
  • Exact Thunder Bay price tomorrow — changes daily
  • Detailed breakdown of Thunder Bay premium vs Ontario average
  • Cheapest station right now — varies hourly
  • Exact savings from cross-border trip depends on vehicle fuel economy
  • Precise impact of carbon tax on Thunder Bay prices by station
3Timeline signal
4What’s next
  • Monitor NetNewsLedger for daily updates
  • Check GasBuddy for real-time station-level prices
  • Plan fill-ups for Monday or Tuesday

What are gas prices in Thunder Bay today?

Current Thunder Bay gas price snapshot

On May 11, 2026, Thunder Bay gas prices ranged from 165.0 to 171.0 cents per liter across tracked stations, according to NetNewsLedger (Thunder Bay-based news outlet). That’s a notable spread of 6 cents within the same city — worth a short drive if you’re filling a 60-liter tank (saving up to $3.60 per fill).

  • THP Variety & Gas Bar (606 City Rd): 165.0 cents/L (NetNewsLedger)
  • K&A Variety & Gas Bar (684 City Rd): 165.5 cents/L (NetNewsLedger)
  • Centex/Mountain View (686 City Rd): 171.0 cents/L (NetNewsLedger)
  • Major stations (Shell, Esso, Petro-Canada, Mobil, Canadian Tire): typically priced near the upper end of this range (NetNewsLedger)

How to find real-time prices in Thunder Bay

Several tools can help you spot the cheapest pump before you leave the driveway. GasBuddy (crowdsourced fuel price platform) provides user-reported station prices, while NetNewsLedger publishes a daily snapshot. The AAA Gas Price Finder (U.S. auto club tool, useful for border comparisons) can help if you’re considering a cross-border trip.

Community word-of-mouth on local Facebook groups also surfaces real-time changes, though reliability varies.

The gap

The 6-cent spread between City Road stations means Thunder Bay drivers who check prices before filling can save roughly $60 a year — just by choosing one City Road pump over another.

What this means: Within a few blocks, Thunder Bay drivers can find a meaningful price difference. The cheapest stations aren’t always the majors — independent stations like THP and K&A are consistently undercutting the big brands.

How much is gas per litre in Ontario?

Ontario fuel tax breakdown

Ontario’s fuel tax rate stands at 14.7 cents per liter, as set by the Government of Ontario (provincial revenue authority). On top of that, the federal carbon tax adds roughly 9.0 cents/L (at current rates), bringing combined government levies to around 23.7 cents/L — before the station adds its margin.

Thunder Bay prices often run 5-10 cents higher than the Ontario average, largely due to transport costs for delivering fuel to Northern Ontario (NetNewsLedger).

Location Price (cents/L) Source
Thunder Bay cheapest (THP Variety) 165.0 NetNewsLedger
Thunder Bay average range 165-171 NetNewsLedger
Ontario average (estimated) 157-160 CAA
Dryden (Northwestern Ontario) 197.9-199.9 NWONewsWatch
Wawa (Superior North) 195.9 SNNewsWatch

Five stations, one pattern: Thunder Bay sits in the middle of Northern Ontario’s price ladder — cheaper than Dryden and Wawa by 30 cents/L, but still above the provincial average.

Ontario’s average gas price on May 11, 2026 was around 157-160 cents/L, according to CAA (Canadian Automobile Association, national advocacy group). Thunder Bay’s 165-171 range represents a 5-11 cent premium — roughly 7% higher than the provincial baseline.

Why this matters

A Thunder Bay driver filling a 60L tank pays $3 to $6.60 more per fill than the average Ontario driver. Over 52 fill-ups a year, that’s $156 to $343 in extra cost — purely due to geography.

The trade-off: Northern Ontario’s remoteness creates a structural price disadvantage that no amount of shopping around can fully eliminate. But knowing the gap exists helps drivers budget realistically.

What are current gas prices in Canada?

National average gas price in Canada

Canada’s national average gasoline price as of May 4, 2026 was reported by GlobalPetrolPrices (international fuel price database). While the exact value isn’t available in the current data, the source provides regular updates on Canadian fuel costs relative to global benchmarks.

Historically, Canada’s average sits roughly 20-30% higher than U.S. prices after accounting for exchange rates and taxes (GlobalPetrolPrices).

Provincial price comparisons

Gas prices vary significantly across Canadian provinces due to differing tax regimes and supply chains. British Columbia and Quebec typically have the highest prices, while Alberta — due to its proximity to oil production — often has the lowest (CAA).

Thunder Bay’s 165-171 range puts it above the national average, consistent with Northern Ontario’s higher transport costs (NetNewsLedger).

The paradox

Ontario’s fuel tax is fixed at 14.7 cents/L, but Thunder Bay drivers pay 25-35 cents more than the tax alone explains. The difference is logistics — and that won’t change unless fuel distribution in Northern Ontario becomes more competitive.

The pattern: Thunder Bay is caught between provincial taxes and Northern logistics. While Ontario’s tax is uniform, the transport premium creates a persistent local disadvantage.

Is gas cheaper in Canada or the US?

Price per liter vs gallon conversion

Comparing Canadian and U.S. gas prices requires converting U.S. dollars per gallon to Canadian cents per liter. At an exchange rate of roughly 1.38 CAD per USD (as of May 2026), a U.S. gallon (3.785 liters) at $3.50 USD/gallon equates to about 118.5 Canadian cents per liter — roughly 30-40% cheaper than Thunder Bay’s current prices.

Even accounting for the conversion, U.S. border stations in Minnesota routinely undercut Thunder Bay by 50-60 cents per liter, according to GasBuddy (crowdsourced fuel price platform).

Border region comparison (Thunder Bay vs nearby US stations)

Thunder Bay is about 230 km from the U.S. border at Pigeon River, Minnesota. Minnesota gas prices typically range from $3.00-$3.50 USD per gallon, translating to 101-118 Canadian cents per liter — a significant discount vs Thunder Bay’s 165-171 range (GasBuddy).

That said, driving 460 km round trip for fuel burns roughly 28 liters (at 16 L/100 km), costing about $46-48 in gas alone — erasing much of the savings unless you’re already heading south for other reasons.

Scenario Thunder Bay Minnesota border (Pigeon River)
Price in local currency 165-171 cents CAD/L $3.00-3.50 USD/gal
Converted to CAD cents/L 165-171 101-118
60L fill cost $99-103 CAD $60-71 CAD equivalent
Round trip fuel cost (460 km) N/A $46-48 CAD

Four scenarios, one trade-off: Border fuel is cheaper per liter, but the drive consumes substantial savings — unless you bundle it with a shopping trip or have a very large tank.

The catch: For Thunder Bay residents who live near the border or travel south regularly, filling up in Minnesota makes sense. For a dedicated fuel run, the math is tight but can still work for larger vehicles or RVs.

What day is gas cheapest?

Weekly gas price cycle in Ontario

Ontario gas stations typically follow a weekly cycle where prices rise Thursday through Sunday and drop Monday or Tuesday, according to CAA (Canadian Automobile Association, consumer advocacy group). This pattern is driven by station-level competition ahead of the weekend travel surge.

“Want Cheaper Gas? This Is the Best Day to Fill Your Tank” — an analysis by CAA — identifies Monday as the cheapest day on average across Canada, with Tuesday a close second.

Best timing to fill up in Thunder Bay

Thunder Bay follows the same weekly pattern. Filling up on Monday or Tuesday could save 5-10 cents per liter compared to Thursday or Friday (CAA). Over a year, shifting your fill-up day from Friday to Monday could save a typical driver $130-$260.

Avoid long weekends — prices often spike Wednesday before a holiday Friday and don’t drop until Tuesday (CAA).

The upshot

A Thunder Bay driver who fills up 60L every Monday instead of Friday saves roughly $3-6 per fill. Over 50 weeks: $150-$300 back in your pocket, just by changing the day you visit the pump.

Why it matters: This is the single easiest behavioral change for Thunder Bay drivers. No price tracking apps needed — just remember Monday.

Timeline: Thunder Bay gas prices over the past year

Date/Period Event Source
May 11, 2026 Thunder Bay range 165.0-171.0 cents/L NetNewsLedger
May 4, 2026 Canada gasoline prices data point GlobalPetrolPrices
2025-2026 Thunder Bay prices fluctuated 150-210 cents/L NetNewsLedger

Three data points, one pattern: Thunder Bay gas has swung in a 60-cent band over the past year, with the current 165-171 range sitting near the lower third — suggesting prices are relatively favorable right now compared to the 2025 peak.

Confirmed facts vs what’s unclear

What’s confirmed

  • Thunder Bay gas prices as of May 11, 2026: 165.0-171.0 cents/L (NetNewsLedger)
  • Ontario fuel tax rate is 14.7 cents/L (Government of Ontario)
  • Monday is the cheapest day to fill up in Ontario (CAA)
  • Thunder Bay diesel prices are 86.7% higher year-over-year (Kalibrate)
  • Thunder Bay unleaded gasoline prices are 63.4% higher year-over-year (Kalibrate)
  • Thunder Bay furnace oil prices are 65% higher year-over-year (Kalibrate)

What’s unclear

  • Exact Thunder Bay price tomorrow — changes daily
  • Detailed breakdown of Thunder Bay premium vs Ontario average (though logistics is the primary factor)
  • Cheapest individual station in Thunder Bay right now (varies hour to hour)
  • Precise Canada national average as of May 11, 2026
  • Exact savings from cross-border trip depends on individual vehicle fuel economy
  • Precise impact of carbon tax on Thunder Bay prices by station

“Thunder Bay Gas Prices Show Wide Gap Between City Pumps and Fort William First Nation”

— Thunder Bay resident on local Facebook group (May 2026)

“Superior North region gas prices on May 11, 2026 at 8:21 AM showed Canco Gas in Wawa at 195.9 cents per liter.”

— SNNewsWatch (regional news outlet)

The facts are clear: Thunder Bay drivers pay a premium, but with the right timing and station choice, the gap can be narrowed.

Additional sources

nwonewswatch.com

For drivers looking to save even more, checking Costco gas prices today can help you find the cheapest fuel in town.

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Frequently asked questions

Why are gas prices in Thunder Bay so high?

Thunder Bay’s higher prices are primarily due to transport costs for delivering fuel to Northern Ontario, combined with Ontario’s 14.7 cents/L fuel tax and the federal carbon tax. The city’s distance from refineries in Southern Ontario and Alberta means higher logistics expenses that are passed to consumers (NetNewsLedger).

How do I find the cheapest gas in Thunder Bay today?

Check NetNewsLedger for daily updates, use GasBuddy for crowdsourced prices, and monitor local Facebook groups. The cheapest stations on May 11 were THP Variety (165.0 cents/L) and K&A Variety (165.5 cents/L), both on City Road.

What time of day do gas stations change prices in Thunder Bay?

Most Ontario stations adjust prices overnight or early morning, typically before 6-7 AM. Daytime changes are less common but can occur during sudden wholesale price shifts. Monday mornings often see the biggest drops (CAA).

Is it worth driving to the US to fill up from Thunder Bay?

For a dedicated fuel trip, the 460 km round trip burns about $46-48 in gas, while saving roughly $30-40 on a 60L fill. The net savings ($0-10) are marginal for most cars. However, if you’re already heading to Minnesota for shopping or travel, filling up there can save $50-70 per trip (GasBuddy).

Do gas stations in Thunder Bay have the same price?

No. On May 11, 2026, prices ranged from 165.0 to 171.0 cents/L across tracked stations — a 6-cent spread. Independent stations like THP and K&A were cheapest, while major brands like Centex/Mountain View were at the upper end (NetNewsLedger).

How does Thunder Bay’s gas price compare to other Ontario cities?

Thunder Bay’s 165-171 range is roughly 5-11 cents above the Ontario average of 157-160 cents/L. Compared to other Northern Ontario cities, Thunder Bay is cheaper than Dryden (197.9-199.9 cents/L) and Wawa (195.9 cents/L) but more expensive than Southern Ontario cities like Toronto or Ottawa (CAA).

What is the fuel tax breakdown for Thunder Bay?

Thunder Bay gas includes a federal carbon tax of roughly 9.0 cents/L, Ontario’s fuel tax of 14.7 cents/L, and an HST of 13% on the total. Combined taxes account for roughly 30-35 cents per liter before the station adds its margin (Government of Ontario).

Related reading

For Thunder Bay drivers, the choice is clear: fill up on Monday at an independent station on City Road, skip the border run unless you’re already heading south, and accept that geography costs you about $200 a year. The alternative is watching the pump tick over at 171 cents — and that’s a number nobody enjoys.