1 First Class Mail Letters (1 oz.) will remain the same at $0.49 when purchased at the Post Office. 2  Each additional ounce will cost $0.22 (up one cent from 2014).
http://www.stamps.com/usps/postage-rate-increase/
1 Each additional ounce will cost $0.22 (up one cent from 2014). 2  The discounted “Metered Mail” category for First Class Mail Letters (1 oz.), which includes online postage providers and postage meters, will increase from $0.48 to $0.485 in 2015.
http://www.stamps.com/usps/postage-rate-increase/
Stamps.com software includes everything customers need to calculate current postage rates. With Stamps.com all you need to do is weigh your mail piece and choose your mail class, destination, and special services and Stamps.com will automatically calculate the required postage. When postage rates change, Stamps.com will update the rates automatically.
http://www.stamps.com/usps/current-postage-rates/
Mark Mavroudis, Stamp Collector. 22.1k Views. A letter can be sent to Canada from the U.S. using International First-Class Mail for as low as $0.80 (as long as the weight of the letter is not over 1 ounce). Exact rates based on weight (and for destinations other than Canada) can be found at the USPS website: http://www.usps.com/price s/first... Canada is in Country Price Groups 1, so the first column of the Letters rate table is used-up to 1 oz. = $0.80, up to 2 oz. = $1.08, and so on.
https://www.quora.com/How-much-postage-do-I-need-to-put-on-a-regular-letter-sent-from-the-U-S-to-Canada
1 USPS Tracking when purchased online will cost $0.36 in 2015, compared to $0.23 in 2014. 2  Postage for First Class Mail International Letters (1 oz.) and postcards will increase by five cents from $1.15 to $1.20. 3  First Class Package International Service will see an increase of 7.2% in 2015.
http://www.stamps.com/usps/postage-rate-increase/
USPS Postage Rates. USPS ® Rates are determined based on a combination of weight, mail class, and shape. For certain services, discounted pricing is available for customers who purchase from online PC Postage services such as Stamps.com. Below is a summary of the latest USPS prices:
http://www.stamps.com/usps/current-postage-rates/
1 The discounted “Metered Mail” category for First Class Mail Letters (1 oz.), which includes online postage providers and postage meters, will increase from $0.48 to $0.485 in 2015. 2  First Class Flats (1 oz.) will stay the same at $0.98 in 2015. 3  Each additional ounce will cost $0.22 (up one cent from 2014).
http://www.stamps.com/usps/postage-rate-increase/
Summary of the 2015 Postage Rate Increase: 1  First Class Mail Letters (1 oz.) will remain the same at $0.49 when purchased at the Post Office. 2  Each additional ounce will cost $0.22 (up one cent from 2014).
http://www.stamps.com/usps/postage-rate-increase/
Registered Mail ™ service can be added to Lettermail or International Letter-post items. You'll get: 1  A stamped, registered receipt if you buy registration at a post office (Lettermail and Letter-post). 2  A signature upon delivery (for Lettermail). 3  Coverage for loss or damage (Lettermail and Letter-post). 4  Delivery confirmation online or by phone the next business day after delivery (Lettermail only).
https://www.canadapost.ca/web/en/pages/lettersdocs/default.page
1 A stamped, registered receipt if you buy registration at a post office (Lettermail and Letter-post). 2  A signature upon delivery (for Lettermail). 3  Coverage for loss or damage (Lettermail and Letter-post). 4  Delivery confirmation online or by phone the next business day after delivery (Lettermail only).
https://www.canadapost.ca/web/en/pages/lettersdocs/default.page
postage cost for letter
The postage cost for a letter is $0.49. The cost for a postage letter is $0.49.