Both carriers cover all of Canada, but they are built for different parcels. Canada Post is the default for small, light parcels and rural addresses; Purolator is built around time-definite courier delivery and heavier business shipments.
Where Canada Post wins
- Rural and remote delivery, including addresses served by post office boxes and community mailboxes.
- Small, light parcels and documents, where courier minimums make Purolator expensive.
- Drop-off convenience through a very large network of post offices.
Where Purolator wins
- Guaranteed or time-definite delivery between major cities.
- Heavier and multi-piece business shipments.
- Shipments that need a firm delivery window to a business address.
A simple rule
Under a couple of kilograms going to a home, compare Canada Post first. Heavy, urgent or business-to-business: quote Purolator. Either way, check dimensional weight before you book — a large light box can cost far more than its weight suggests.
Rates change and depend on your account. Get live quotes from both carriers before deciding.