Driving route · Canada

Route from Westmount to Alliston

Interactive map, distance, and indicative drive time for the route from Westmount to Alliston — 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 Westmount (Quebec) and Alliston (Ontario). Use the live planner below to get up-to-date driving directions by car, on foot, or by bicycle.

Distance from Westmount to Alliston

The straight-line distance between Westmount and Alliston is 515.9 km. The estimated road distance by car is around 583 km, with an indicative drive time of 6 h 29 min.

Straight-line distance 515.9 km
Estimated road distance ~583 km
Indicative drive time 6 h 29 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: Westmount – Alliston

Route type Long

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

Indicative fuel cost $65–$88

Estimate: ~583 km, 8 L/100 km, $1.65/L. ±15%. Excludes tolls.

Driving directions from Westmount to Alliston

The map shows the locations of Westmount (A) and Alliston (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 Westmount to Alliston

Real distance: 628.8 km  ·  Estimated time: 9 h 28 min

🗓 Calculated on June 4, 2026
  1. Drive southeast on Avenue Mount Stephen. 96 m
  2. Turn right onto Rue Sherbrooke Ouest/Sherbrooke Street West/138. 1.6 km
  3. Turn left onto Avenue Girouard. 209 m
  4. Take the 15 Sud ramp on the left. 599 m
  5. Take exit 63-O onto 20 Ouest toward Toronto/Airport Pierre-Elliott-Trudeau. 4.1 km
  6. Keep right to take exit 63 onto 138 Ouest toward Avenue Dollard/1re Avenue/Pont H-Mercier. 307 m
  7. Keep left to take 138 Ouest toward Pont H.-Mercier. 5.5 km
  8. Take the 207/221 exit toward Saint-Isidore/Saint-Rémi/Kahnawake. 247 m
  9. Turn left onto Chemin Saint-Isidore/Saint-Isidore Road/207. 6.1 km
  10. Turn right to take the 30 Ouest ramp toward Vandreuil-Dorion. 37.7 km
  11. Keep right to take exit 5 onto 401 toward Toronto. 458 m
  12. Keep left to take 401 toward Toronto. 428.2 km

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

Estimate trip cost: Westmount – Alliston

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

Indicative estimates based on ~583 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

Westmount

Quebec · 45.48330, -73.60000

Westmount sits on the Island of Montreal in the province of Quebec, immediately adjacent to central Montreal and forming part of the greater Montreal metropolitan area. On regional maps it appears as a compact, inner…

Destination

Alliston

Ontario · 44.15000, -79.86670

Alliston sits in south-central Ontario in a mixed agricultural and small-town landscape north of larger urban centres to the south. The town acts as a local commercial and retail centre for surrounding farmland, with a…

How to drive from Westmount to Alliston

The straight-line distance between Westmount (Quebec) and Alliston (Ontario) is about 515.9 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: Westmount – Alliston

How far is Westmount from Alliston? The road estimate is around 583 km, with an indicative drive time of 6 h 29 min. The route connects Quebec to Ontario — a long route (over 300 km). Plan multiple breaks and check highway traffic, weather, and fuel availability — particularly in remote sections. Verify the track with the live planner for current instructions.

The trip starts at Westmount (Quebec) — coordinates 45.4833° N, -73.6000° E. The destination is Alliston (Ontario), at 44.1500° N, -79.8667° E.

Practical tips for the Westmount – Alliston drive

Terrain along the way

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

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 583 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 Alliston

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

Alliston profile →

Explore Westmount

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

Westmount profile →

Related tools

Cities along the Westmount – Alliston route

These cities are near the direct route between Westmount and Alliston. They may be useful as a stopover or alternate destination.

Routes with intermediate stops: Westmount → Westport · Westmount → Verona · Westmount → South Frontenac

Related routes

From Westmount to other cities:

To Alliston from other cities:

From Alliston to intermediate cities:

All info about Westmount →  ·  All info about Alliston →

Similar-distance routes from Westmount

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Frequently asked questions: Westmount – Alliston

What is the straight-line distance between Westmount and Alliston?

The straight-line distance between Westmount and Alliston is about 515.9 km. This is the direct geometric distance between the two coordinates, ignoring road geometry.

What is the estimated road distance from Westmount to Alliston?

The estimated road distance from Westmount to Alliston is about 583 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 Westmount to Alliston?

Indicative drive time from Westmount to Alliston is about 6 h 29 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 Westmount to Alliston?

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 Westmount–Alliston 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 Westmount to Alliston?

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 Westmount to Alliston?

A common alternative is going via Westport or Verona. Use the live planner to compare routes.

Can I open the Westmount–Alliston 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 Westmount as origin and Alliston as destination.