Driving route · Canada

Route from Black Lake to South Dundas

Interactive map, distance, and indicative drive time for the route from Black Lake to South Dundas — with the live planner for up-to-date turn-by-turn directions.

This page provides the map and indicative distance data for the route between Black Lake (Quebec) and South Dundas (Ontario). Use the live planner below to get up-to-date driving directions by car, on foot, or by bicycle.

Distance from Black Lake to South Dundas

The straight-line distance between Black Lake and South Dundas is 329.6 km. The estimated road distance by car is around 372 km, with an indicative drive time of 4 h 8 min.

Straight-line distance 329.6 km
Estimated road distance ~372 km
Indicative drive time 4 h 8 min
Note: values are approximate estimates. Road distance is calculated by multiplying the straight-line distance by a road-deviation factor (1.13–1.30 based on length). Drive time assumes ~90 km/h average. Real traffic, tolls, and conditions can vary significantly. Use the live planner for current data.

Trip cost and route type: Black Lake – South Dundas

Route type Long

Long route (over 300 km) — plan a break roughly every 2 hours and check highway traffic and weather.

Indicative fuel cost $42–$56

Estimate: ~372 km, 8 L/100 km, $1.65/L. ±15%. Excludes tolls.

Driving directions from Black Lake to South Dundas

The map shows the locations of Black Lake (A) and South Dundas (B). Use the form below to calculate the up-to-date road route with turn-by-turn directions, real distance, and estimated drive time.

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Driving directions from Black Lake to South Dundas

Real distance: 391.3 km  ·  Estimated time: 5 h 42 min

🗓 Calculated on June 4, 2026
  1. Drive southwest on Rue Saint-Jacques. 272 m
  2. Turn right onto Rue Saint-Désiré. 41.7 km
  3. Turn left onto Route 116/116/165. 7.8 km
  4. Take the exit. 2.0 km
  5. Turn right onto Rue Saint-Jean-Baptiste Nord/165/263. Continue on 165. 17.1 km
  6. Stay straight to take the 20 ramp. 129.4 km
  7. Take exit 98 onto 30 toward Vaudreuil-Dorion. 180 m
  8. Keep left to take 30 Ouest toward Vaudreuil-Dorion. 26.4 km
  9. Keep left to stay on 30. 52.0 km
  10. Keep right to take exit 5 onto 401 toward Toronto. 458 m
  11. Keep left to take 401 toward Toronto. 106.3 km
  12. Take exit 750 onto CR 31/County Road 31 toward Winchester/Morrisburg. 496 m

Standard car route without avoiding highways. For advanced options (motorcycle, bicycle, transit, avoid tolls) use the live planner above.

Estimate trip cost: Black Lake – South Dundas

Litres estimated
Fuel cost
Toll estimate
Total estimate
Range ±15%

Indicative estimates based on ~372 km. Tolls calculated at ~$0.10/km on tolled segments. The calculator updates with the live planner's real distance. Actual consumption, driving style, weather, and toll rates vary.

Origin and destination

Origin

Black Lake

Quebec · 46.04600, -71.35710

Black Lake sits in south-central Quebec on the inland plain where mixed farmland and forest meet small lakes and country roads. As a community of roughly 3,266 residents, it appears on provincial maps as a compact local…

Destination

South Dundas

Ontario · 44.91670, -75.26670

South Dundas is a township in eastern Ontario along the St. Lawrence River valley. The municipal area combines small riverside communities and extensive farmland, and it registers on maps as a low-density collection of…

How to drive from Black Lake to South Dundas

The straight-line distance between Black Lake (Quebec) and South Dundas (Ontario) is about 329.6 km. The actual road distance varies by chosen route, road type, and travel conditions — especially in winter and across mountain or northern segments.

Before you leave, consider:

  • Check current traffic with a navigation app — particularly around major cities.
  • Look up any toll segments on your route (Ontario 407, select bridges).
  • In winter or at higher elevations, drive times and conditions can change quickly. Carry a charged phone, fuel reserve, and weather-appropriate gear.
  • Plan stops at service centres or towns along the way — fuel and rest stops can be sparse on remote sections.

Route description: Black Lake – South Dundas

The distance from Black Lake to South Dundas is estimated at 372 km on a mixed road profile, starting from 329.6 km straight line. It is a long route (over 300 km) that connects Quebec to Ontario. Plan multiple breaks and check highway traffic, weather, and fuel availability — particularly in remote sections. Calculate the current route with the live planner for detailed instructions.

The trip starts at Black Lake (Quebec) — coordinates 46.0460° N, -71.3571° E. The destination is South Dundas (Ontario), at 44.9167° N, -75.2667° E.

Practical tips for the Black Lake – South Dundas drive

Terrain along the way

The route starts in Quebec — a province St. Lawrence valley framed by the Laurentians and the Appalachians — and reaches South Dundas in Ontario, Great Lakes shoreline in the south, Canadian Shield forests across the north. The route also passes near Carignan (Quebec).

When to leave

For a long route, leave early (before 06:30) or wait until after 10:00. Avoid summer long-weekend exoduses and major holidays. Plan a break every 1.5–2 hours of driving — and check weather, especially across the Prairies and through mountain passes.

Alternatives

For this route of about 372 km, consider VIA Rail Canada — VIA's Corridor service connects many Eastern Canadian cities, and the long-distance trains (the Canadian, Ocean) run through the Prairies and the Maritimes. Cross-border trips may also include Amtrak's Adirondack or Cascades. Check schedules at viarail.ca and amtrak.com.

Explore South Dundas

Full information about South Dundas: interactive map, GPS coordinates, elevation, nearby cities, and routes to and from South Dundas.

South Dundas profile →

Explore Black Lake

Full information about Black Lake: map, GPS coordinates, and all routes from Black Lake to other Canadian cities.

Black Lake profile →

Related tools

Cities along the Black Lake – South Dundas route

These cities are near the direct route between Black Lake and South Dundas. They may be useful as a stopover or alternate destination.

Routes with intermediate stops: Black Lake → Carignan · Black Lake → Chambly · Black Lake → Saint-Basile-le-Grand

Related routes

From Black Lake to other cities:

To South Dundas from other cities:

From South Dundas to intermediate cities:

All info about Black Lake →  ·  All info about South Dundas →

Popular routes from Quebec

Most-searched routes from Quebec, ranked by popularity.

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Frequently asked questions: Black Lake – South Dundas

What is the straight-line distance between Black Lake and South Dundas?

The straight-line distance between Black Lake and South Dundas is about 329.6 km. This is the direct geometric distance between the two coordinates, ignoring road geometry.

What is the estimated road distance from Black Lake to South Dundas?

The estimated road distance from Black Lake to South Dundas is about 372 km — derived by multiplying the straight-line distance by a road-deviation factor (1.13–1.30 based on length). For an up-to-date route, use the live planner.

How long does it take to drive from Black Lake to South Dundas?

Indicative drive time from Black Lake to South Dundas is about 4 h 8 min, based on an average highway speed of 90 km/h on a mixed motorway/highway profile. Real time depends on traffic, weather, stops, vehicle type, and conditions.

How do I get up-to-date driving directions from Black Lake to South Dundas?

Use the live planner on this page: select your transport mode and click "Update route". You'll see the route with turn-by-turn directions, current distance, and estimated time based on up-to-date routing data.

Does the Black Lake–South Dundas route involve highway tolls?

CanadaDrivingDirections.com does not provide toll details. Toll roads are limited in Canada — Ontario's 407 ETR, a few Quebec bridges, and the Confederation Bridge to PEI are the main ones. Check the operator's site for current pricing.

How does traffic affect the route from Black Lake to South Dundas?

Traffic varies by time of day, season, and weather. The live planner uses up-to-date routing data; for live traffic, use a navigation app before departure — especially in winter when conditions can change rapidly.

Is there an alternative route from Black Lake to South Dundas?

A common alternative is going via Carignan or Chambly. Use the live planner to compare routes.

Can I open the Black Lake–South Dundas route in Google Maps?

Yes. Click "Open in Google Maps" on this page to view the route in the Google Maps app or browser. You can also open Google Maps directly and enter Black Lake as origin and South Dundas as destination.