All Foreign Visitors are now able to obtain the Cambodia visa upon arrival at the airport. It is no longer necessary to get the visa stamp at the Cambodian Embassy before your visit. Just prepare the following documents:
The Cambodia Visa is issued officially at the following ports of entry:
Travelers can travel to/from Cambodia by land through Aranyapathet-Poipet Border and Trat-Koh Kong Border of Thailand and Moc Bai – Bavet Border of Vietnam
Cambodia Visa Validity: 30 days from the date of issue, *NOT* from the date of entry.
If you are a foreign national, be aware that you will have to pay an airport departure tax when you leave Cambodia through the airports, about $25 for international flights, it is about $4-6 for internal flights between Phnom Penh and Siem Reap.