I don't know where you are as you are "in hinding". If you go to USPS.com & click on International shipping, & then choose Canada, you will see all the USPS Flat Rate International boxes. You use the same Priority boxes as you use to send things in the U.S. I have done it many times. If you pay & print your label on the USPS.com website, it is even cheaper than when you mail from the post office.
Originally Posted by pocoellie
From what the USPS told me, they don't have flat rate shipping for International, they also said they don't have a way of tracking the package. I've never had any trouble with Marshall's.