I recently ordered two patterns from Ebay. One was from a seller in Canada (BC) and the other was from the US (SC).
I paid for the patterns at the same day, at the same time.
Both shipped on the same day.
It actually cost more to ship from the Cdn seller - but the price difference was marginal. (less than $1)
Because my March Break is coming up and I plan to do a lot of sewing, I am excited to get the patterns and buy fabric. The Canada Post website says that domestic delivery standards are 4 days from urban centre to urban center outside of province.
The USPS website says the average delivery of 3 to 5 business days for express international mail. (Average number of days may vary based upon origin and destination.)
I have a bet with a friend, she thinks the US pattern will arrive first and I think the Cdn one will.