How much for a letter to Ireland?

The cost of postage for a letter to Ireland from the United States depends on the weight and size of the letter, as well as the shipping method selected. First-Class Mail International starts at $1.30 for up to one ounce and increases with each additional ounce. Priority Mail International starts at $26.95 and offers faster delivery times. For more information, please visit the USPS website or contact your local post office.