How long will it take for a package to reach Canada from USA?

On USPS (US Postal Service) Track and Confirm website it reads that my package status as:



"International Dispatch, June 24, 2009, 9:54 pm, ISC LOS ANGELES CA (USPS)"

Class: Priority Mail International Parcels

Service(s): International Parcels

Status: International Dispatch



It is ground shipping to Alberta, Canada. I would like to know how long will it take to reach Canada? It is coming from California.How long will it take for a package to reach Canada from USA?
This is NOT ground shipping

ISC Los Angeles CA is the international airport in LA

ISC Chicago is the international airoport in chicago





so ill say about a weekHow long will it take for a package to reach Canada from USA?
Figure 6 days or less. I get packages delivered to the UK and Au in 10 days or less from California.