A first-class letter from La Grange, Ga., to Atlanta normally takes one day to arrive, according the U.S. Postal Service's map server. Delivery normally takes two to three business days for 13 ounces of mail. Shipping freight, packages and Priority Mail may differ based upon pricing and the carrier.
A first-class letter costs 49 cents as of July 2014. Packages shipped via the U.S. Postal Service's Priority Mail service cost between $5.60 and $19.99 depending upon the weight of the package. The USPS normal delivery time is based upon the time from the postmark of the mail. The USPS does not guarantee its delivery times for first-class mail rates.