Driving route · Canada

Route from Saint-Eustache to Ajax

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

Distance from Saint-Eustache to Ajax

The straight-line distance between Saint-Eustache and Ajax is 448.2 km. The estimated road distance by car is around 506 km, with an indicative drive time of 5 h 38 min.

Straight-line distance 448.2 km
Estimated road distance ~506 km
Indicative drive time 5 h 38 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: Saint-Eustache – Ajax

Route type Long

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

Indicative fuel cost $57–$77

Estimate: ~506 km, 8 L/100 km, $1.65/L. ±15%. Excludes tolls.

Driving directions from Saint-Eustache to Ajax

The map shows the locations of Saint-Eustache (A) and Ajax (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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Prefer another app? Open in Google Maps ↗

Driving directions from Saint-Eustache to Ajax

Real distance: 508.0 km  ·  Estimated time: 7 h 19 min

🗓 Calculated on June 4, 2026
  1. Drive southeast on Rue Viau. 31 m
  2. Turn left onto Rue Bélisle. 172 m
  3. Turn left onto Rue Moreau. 297 m
  4. Turn right onto Rue Hector-Lanthier. 1.9 km
  5. Turn left onto 25e Avenue. 74 m
  6. Turn right to take the 640 Est ramp toward Repentigny. 1.8 km
  7. Take exit 16 onto 13 Sud toward Laval/Montréal/Aéroport P.-E.-Trudeau. 286 m
  8. Take the 13 Sud ramp toward Laval/Montréal/Aéroport P.-E.-Trudeau. 15.2 km
  9. Take exit 6 onto 40 toward Ottawa/Gatineau. 198 m
  10. Keep right to take 40 Ouest toward Ottawa/Gatineau. 488 m
  11. Take the 40 Ouest ramp on the left toward Ottawa/Gatineau. 27.2 km
  12. Keep left to take exit 32 onto 30 toward Sorel-Tracy/Toronto. 3.8 km

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

Estimate trip cost: Saint-Eustache – Ajax

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

Indicative estimates based on ~506 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

Saint-Eustache

Quebec · 45.57000, -73.90000

Saint-Eustache sits on the north shore of Montreal in southwestern Quebec, where suburban development meets low-lying agricultural land. On regional maps it reads as a mid-sized suburban city within the greater Montreal…

Destination

Ajax

Ontario · 43.85830, -79.03640

Ajax is a suburban city on the north shore of Lake Ontario in southern Ontario, positioned on the eastern edge of the Greater Toronto metropolitan area. Appearing on regional maps as a built-up lakeshore band, it…

How to drive from Saint-Eustache to Ajax

The straight-line distance between Saint-Eustache (Quebec) and Ajax (Ontario) is about 448.2 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: Saint-Eustache – Ajax

The journey from Saint-Eustache to Ajax covers roughly 506 km on the road, equal to 448.2 km straight line. The trip connects Quebec to Ontario and is classified as a long route (over 300 km). Plan multiple breaks and check highway traffic, weather, and fuel availability — particularly in remote sections. Open the interactive planner for the route map, turns, and a fuel-or-EV cost calculator.

The trip starts at Saint-Eustache (Quebec) — coordinates 45.5700° N, -73.9000° E. The destination is Ajax (Ontario), at 43.8583° N, -79.0364° E.

Practical tips for the Saint-Eustache – Ajax drive

Terrain along the way

The route starts in Quebec — a province St. Lawrence valley framed by the Laurentians and the Appalachians — and reaches Ajax 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 506 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 Ajax

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

Ajax profile →

Explore Saint-Eustache

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

Saint-Eustache profile →

Related tools

Cities along the Saint-Eustache – Ajax route

These cities are near the direct route between Saint-Eustache and Ajax. They may be useful as a stopover or alternate destination.

Routes with intermediate stops: Saint-Eustache → Westport · Saint-Eustache → Rideau Lakes · Saint-Eustache → South Frontenac

Related routes

From Saint-Eustache to other cities:

To Ajax from other cities:

From Ajax to intermediate cities:

All info about Saint-Eustache →  ·  All info about Ajax →

Similar-distance routes from Saint-Eustache

Other routes from Saint-Eustache with comparable distance (269–627 km straight line).

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Frequently asked questions: Saint-Eustache – Ajax

What is the straight-line distance between Saint-Eustache and Ajax?

The straight-line distance between Saint-Eustache and Ajax is about 448.2 km. This is the direct geometric distance between the two coordinates, ignoring road geometry.

What is the estimated road distance from Saint-Eustache to Ajax?

The estimated road distance from Saint-Eustache to Ajax is about 506 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 Saint-Eustache to Ajax?

Indicative drive time from Saint-Eustache to Ajax is about 5 h 38 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 Saint-Eustache to Ajax?

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 Saint-Eustache–Ajax 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 Saint-Eustache to Ajax?

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 Saint-Eustache to Ajax?

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

Can I open the Saint-Eustache–Ajax 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 Saint-Eustache as origin and Ajax as destination.