There are two international airports: Phnom Penh International Airport (PNH) and Siem Reap (REP). Both are served by flights from all neighboring Asian destinations although the airlines flying the route change often. When coming from Europe, Australia, or America it is usually best to book a flight to Bangkok or Singapore and make your travel arrangements for the short distance to Cambodia from there. International carriers flying into Phnom Penh include: Air Asia (www.airasia.com), Asiana (www.flyasiana.com), Bangkok Airways (www.bangkokair.com), China Airlines (www.china-airlines.com), China Southern (www.flychinasouthern.com), Jetstar (www.jetstar.com), Korean Air (www.koreanair.com), Lao Airlines (www.laoairlines.com), Silk Air (www.silkair.com), Thai Airways (www.thaiair.com), Malaysia Airlines (www.malaysiaairlines.com), and Vietnam Airlines (www.vietnamairlines.com).
It's worth noting that if flying directly to Siem Reap to visit Angkor Wat, Bangkok Airways has a monopoly on all direct flights between Bangkok and Siem Reap. If you're on a budget, it is cheaper to fly to Phnom Penh and to then take the bus or boat to Siem Reap, or travel overland from Bangkok via Poipet/Aranyaprathet.
Important: When leaving Cambodia by air, there is a $25 departure tax.
Getting into Town from the Airport -- Taxis make the 30-minute journey into Phnom Penh from the airport for a flat rate of $9. They are monitored and ticketed on entry and exit to the airport and you pay at a desk in the arrivals area. Tuk-tuks (motorcycles with a trailer attached) cost $7 for the same trip and can be booked at the same desk. Motorcycle taxis are not allowed to pick up passengers within the airport complex.
It seems that every year another border crossing from a neighboring country is opened up and another road is built or improved. Now with the road from Koh Kong completed and the border crossing with Vietnam open at Ha Tien (Xa Xia in Vietnam to Prek Chak in Cambodia), it is possible to travel the coast road from Trat and Koh Chang in Thailand all the way to Vietnam. Although Cambodian visas are officially available at the border, some travelers have reported problems and it is safer to have a Cambodian visa in advance. Here are some of the major border crossings.
From Laos -- From Voeung Kam in Laos to Dom Kralor in Cambodia -- There are actually two border crossing points, relatively close to one another. The first crossing is at Koh Chheuteal Thom on the Mekong River. The second is the road crossing at Dom Kralor to Ban Nakasang. If traveling from Laos to Cambodia, you are strongly advised to book a through tour with a travel agent in Pakse since the border crossings here are complicated and subject to change.
From Thailand -- From Aranyaprathet in Thailand to Poipet in Cambodia -- This was the first crossing to open in the late 1990s and these days it still remains the principal crossing point from Thailand. Open 8am to 8pm, this is the main route to get to Siem Reap and Angkor from Bangkok as well as to Battambang and Phnom Penh.
From Had Lek in Thailand to Koh Kong in Cambodia via Cham Yeam Checkpoint -- Now that the brand-new road from the Cambodia/Thai coastal border to both Sihanoukville and Phnom Penh is completed, this border crossing is set to become more and more important. An hour away from Trat and only a couple of hours from Koh Chang, this is the gateway to all things south including the Cardamoms themselves, Sihanoukville, Kampot, Kep, and indeed a through route to Vietnam and the Mekong Delta. The border is open between 7am and 8pm.
From Vietnam -- From Bavet Checkpoint in Moc Bai, Vietnam, to Bavet in Cambodia -- This is the main route from Phnom Penh to Ho Chi Minh City (Saigon) on Rte. 1. There is a river crossing at Neak Loeung and when the road is busy there can be a long line for the ferry.
From Kaam Samnor, Cambodia, to Ving Xuong in Vietnam -- This is the crossing on the Mekong River to the delightful riverine town of Chau Doc in Vietnam. A slow river trip is one of the most interesting and beautiful ways to travel from Phnom Penh to Vietnam. Chau Doc is the gateway to Vietnam's Mekong Delta.
From Xa Xia in Vietnam to Prek Chak in Cambodia -- This crossing takes you from the Ha Tien in Vietnam's Mekong Delta directly to Kep, Kampot, and on to Sihanoukville in Cambodia. It completes the coastal route from Thailand to Vietnam.
Le Tanh in Gia Lai Province in Vietnam to O'Yadaw in Ratanakiri, Cambodia -- This is a newly opened international border crossing.
From Laos -- Traveling overland to Cambodia from Laos involves several legs pieced together. It can be done one of two ways. First, take a boat from Voeung Kam in Laos to Stung Treng in Cambodia, crossing at Koh Chheuteal Thom. The boat should cost $10. You can also take a shared minibus to the crossing at Dom Kralor, which is becoming the easiest and most popular way to do it. Stung Treng is then served by buses on Sorya Transport, and a ticket to Phnom Penh costs 42,000 riel.
Although a Cambodian visa on arrival exists in principle, there have been some reports that it is not as straightforward as at other entry points. To be on the safe side you should get your Cambodian visa beforehand. There are no Lao visas on arrival if traveling the other way.
From Thailand -- Getting from Bangkok to either Siem Reap or Phnom Penh by bus is very easy and straightforward. Take a standard bus from Morchit Northern Bus Terminal in Bangkok (near either Morchit BTS Skytrain or Chatuchak MRT subway stations). Buy a ticket to Aranyaprathet. The trip takes about 5 hours. Once in Aranyaprathet, take a tuk-tuk for between 50 baht and 100 baht to the border. You can also take a minibus direct from the Khao San Road area, which is faster but very uncomfortable. Once you have completed immigration formalities and are in Poipet on the Cambodian side of the border you have the option of taking a regular bus, a shared or private taxi, or a seat in a crowded pickup truck to your destination in Cambodia. There is a free shuttle bus from the border to the place where the buses and taxis are parked.
Given that the journey is a long one and the lines at immigration can be long and dusty, it is advisable to break the journey with a night in Aranyaprathet. There are a number of serviceable hotels in town. The Aran Garden 2 Hotel (200 baht without fan, 250 baht with fan and TV, 370 baht with A/C and TV) is right in the center of town. Tuk-tuk drivers will know it. Expect to pay about 50 baht to get there from the station. Reception staff will be able to hail you a tuk-tuk to take you to the border in the morning. There are also a number of resorts and hotels between town and the border. Expect to pay approximately 500 Thai baht. You could spend the night in Poipet, but this is not recommended because it is utterly charmless. It takes between 2 and 3 hours to get to Siem Reap, 4 hours to Battambang, and 9 hours to Phnom Penh.
From Vietnam -- Buses connect with neighboring Vietnam at the Moc Bai border area at the town of Svay Rieng on the Cambodian side. From Saigon in Vietnam, contact Saigontourist (tel. 08/829-8914) or Sinh Café (tel. 08/369-420) for direct connection to Cambodia -- Sinh Café and Capitol Tour (also called Capitol Guesthouse) are in cahoots and one carrier takes up your transport at the border. Going in either direction (to or from Cambodia), you'll cross the border around noon and the $6 bus drops you at your destination sometime after 3pm. The overland border procedure into Cambodia is quick and easy. You just have to fill out some forms and pay the 2,000 VND tax (payable in any currency). The Capitol/Sinh office is just across the border. Going from Cambodia to Vietnam, ask at any travel agent, hotel, or the Capitol Guesthouse and be sure that you have a prearranged visa for Vietnam. Visa is available on arrival at any land crossings in Cambodia.
There are no international train routes into Cambodia.
There is a border crossing to Laos on the Mekong, 90 minutes north of Stung Treng at Veun Kham/Dom Kralor. The rules there change often at very short notice and the border officials there a have a reputation for being fairly unscrupulous when it comes to soliciting unofficial contributions. Although a Cambodian visa is officially available on arrival, it is advisable to obtain one beforehand to ensure you won't encounter difficulties, given the frequent changes in the rules.
There are no ferry services from Thailand to Cambodia. Daily boat connections run between Chau Doc in Vietnam and the town of Neak Loeung, some 2 hours east of Phnom Penh in Cambodia. You can arrange the trip through any budget travel agent in Vietnam, and many include the boat connection to Phnom Penh as part of a multiday Mekong Delta trip. Note: Budget tour operators Sinh Café (tel. 08/369-420 in Ho Chi Minh City) and Capitol Tour (No. 14 Rd. 182, Phnom Penh; tel. 023/217-627) are now working together, so when you cross borders, the other company adopts you. It's an all-day journey in a diesel-belching tour boat, but views of life on the wide, lazy Mekong are worth it. Note: A visa is available on arrival when entering Cambodia, but you have to have a prearranged visa for entry to Vietnam. If you want to cross from Chau Doc to Phnom Penh in luxury, contact the Victoria Chau Doc Hotel (tel. 076/865-010) for a pricey private transfer on a speedy runabout boat.
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.