The trip between Phnom Penh and Sihanoukville is relatively painless. Here’s a round-up of the best options for 2019 (hint: we prefer private taxis) to get from Phnom Penh to Sihanoukville and vice-versa. The journey take between 4 and 7 hours. The later in the day you leave, the longer the trip will be due to traffic; around dusk it can take an hour or two just to get out of Phnom Penh.
Phnom Penh to Sihanoukville at a glance…
*Taxi: $60 4 hours, reserve online in advance
Giant Ibus bus: $15, 6 hours, buy ticket online
Mekong Express van: $12, ~5 hours, buy ticket online
Post Office van: $8, ~5 hours, buy tickets online
Compare all buses between Phnom Penh and Sihanoukville

One of our favorite Sihanoukville taxi drivers.
Taxi
Private taxis are the fastest way to get from Phnom Penh to Sihanoukville, and usually cost between $50 and $60. In high season the prices can climb even higher. Taxis can seat four people, but be warned that they don’t usually have enough room for a ton of luggage. Most of the taxis that go between Phnom Penh and Sihanoukville are Camrys, and the drivers aren’t afraid to hit the gas. Expect to get there in around 4 hours or less, although we’d advise you to keep your eyes closed. Later departures will take longer due to traffic.
You can book a taxi online in advance, and the prices are surprisingly reasonable. In fact, if you book online you can get an SUV taxi that seats five for the same price — around $60. There is also the option to book a 7- or 10-seat minivan.
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