does mail to canada require extra postage
The U.S. postage required to mail a first-class letter from Texas to Vancouver, Canada is $1.15, according to the United States Postal Service. This rate only applies to letters weighing up to 2 ounces. Continue Reading. Postage for letters weighing over 2 ounces but not more than 3 ounces is $1.61. The postage on more than 3 ounces is $2.08. The maximum weight allowed on first-class, international letters to Canada is 3.5 ounces. Letters exceeding this amount are charged international flat-rate prices.