What is the postage rate for a letter from Los Angeles to Seattle?

As of my last update in September 2021, the postage rate for a standard first-class letter (up to 1 ounce) from Los Angeles, California to Seattle, Washington in the United States is $0.55. However, postal rates are subject to change, so it's best to check with the United States Postal Service (USPS) website or your local post office for the most current information.