International Entry & Visa Requirements for U.S. Passport Holders
Passengers traveling abroad require a passport valid for six months beyond their travel dates.
CAMBODIA – Visa required. Tourists may obtain a Cambodian visa for $30 upon arrival at the airports in Phnom Penh, Siem Reap, and at all major border crossings. One passport-sized photograph is required. E-Visas may also be obtained in advance online at least 3 business days prior to travel at https://www.evisa.gov.kh/ for $37 and are only valid for entry by air. Please note E-Visas are not accepted when entering by cruise into Cambodia. Visas must be purchased locally in cash on board the ship and a passport size photograph is required.
VIETNAM – Visa required. Contact Vietnamese Embassy, 1233 20th Street, Suite 400, NW, Washington, DC 20036; Website: vietnamembassy-usa.org. There are Vietnamese Consulates General in San Francisco, New York & Houston. Alternatively, you may obtain a visa through a fee-based service such as GEN VISA. Please note that GEN VISA is unable to assist passengers who choose to apply for their visas directly.
Gate 1 Travel Blog 