A passport is the most commonly accepted form of international identification. It is issued by a person’s home country and is required for most travel across international borders. U.S. passports are usually valid for ten years and cost $115.
A valid passport is required for US citizens to travel outside of the country with few exceptions. Most airlines require that a person’s passport be valid for at least six months after a traveler’s return trip. More information on requesting a passport or renewing one, please visit https://www.usps.com/international/passports.htm.