How to Get From Siem Reap to Sihanoukville
Bus · Flight · Taxi
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In this in-depth route guide, you'll find the best ways to travel the 530 kilometre (329 miles) distance from Siem Reap to Sihanoukville. By the end of this guide, you'll know exactly how to get there — whether you want to travel on a budget, reach Sihanoukville as fast as possible, or enjoy the ride in comfort. We base our information on verified schedules, ticket prices, and on-the-ground insights from recent travellers.
Written by Maarten
Founder & Trip Planning Expert
Last updated 4 months ago
What are the 3 ways to travel from Siem Reap to Sihanoukville?
There are three ways to travel the 530 km distance from Siem Reap to Sihanoukville. You can choose between the bus, flight, and private.
The journey takes between 2h 45m–8h 30m and the quickest way is by flight (2h 45m). If you're on a budget, the cheapest option is by bus with tickets starting at 52,000 KHR ($13).
7h 30m - 13h 30m
52,000 KHR ($13)
2h 45m - 3h 10m
426,000 KHR ($105)
8h 30m
631,000 KHR ($155)
Already in Sihanoukville?
Onward from Sihanoukville
Once you're in Sihanoukville, here's where to next — 8 researched onward routes to pick from.
Siem Reap to Sihanoukville by Bus
The bus journey from Siem Reap to Sihanoukville costs 52,000 KHR ($13) and takes around 7h 30m - 13h 30m, making it one of the longer overland routes in Cambodia. To avoid spending most of the day on the road, many travellers choose an overnight bus instead.
There are six bus companies operating on this route, and most offer night services.
For long-distance overnight trips like this one, buses are required to have two drivers who split driving duties, which helps reduce fatigue on the road. While night buses in Cambodia once had a weaker safety reputation, conditions on this route have improved in recent years with better roads and newer buses.
That said, night travel can still involve added risk, as lighting and road conditions can vary along the way.
You can check the bus schedules below to find a departure time that works best for you.
Bus schedule from Siem Reap to Sihanoukville
Booking Tip
In Cambodia, transport companies often adjust the vehicle type based on how many people are travelling. You might book a bus but end up in a minivan, or the other way around, depending on demand.
Each company also uses its own office as the departure and arrival point, so make sure to check the exact location when booking.
Siem Reap to Sihanoukville by Flight
Taking a flight from Siem Reap to Sihanoukville is the most convenient option if you don't want to spend over 7 hours on the road.
Here’s a step-by-step guide to help you plan your trip:
Step 1: Siem Reap city centre to Siem Reap Airport
The new Siem Reap–Angkor International Airport (SAI) is about 45 kilometres away from the city centre. Depending on traffic and your choice of transport, the trip can take anywhere from 45 minutes to 1.5 hours.
The cheapest option is the airport shuttle bus, with tickets starting from 32,000 KHR ($8.00). Buses leave from 7 Makara Street, around two kilometres from the main Tourist area.
If you want to travel more comfortably and save time, a private transfer is a good choice. You can hail a taxi, use a ride-hailing app, or pre-book a car through services like BookAway. Prices usually range from 100,000 KHR ($25) to 181,000 KHR ($45).
There are also tuk-tuks and shared minivans to the airport, but they’re slower and not ideal in bad weather. You can read more about all the transport options on our Siem Reap airport page.
Step 2: Siem Reap to Sihanoukville by Flight
Flying is the fastest way to get from Siem Reap to Sihanoukville, with a flight time of just over an hour.
Air Cambodia operates at least two direct flights daily. Airfares from Siem Reap to Sihanoukville start from 345,000 KHR ($86). Prices can rise during peak season, though, so it’s best to book early!
Step 3: Sihanoukville Airport to Sihanoukville city centre
Sihanoukville International Airport (KOS) is about 25 km from the city centre. There’s no public transport, so you only have 2 choices: an air-conditioned private transfer and an open-air tuk-tuk.
Air-conditioned private transfers are faster and more comfortable, but pricier. Here you have 3 options: airport taxi, taxi booked via Grab or PassApp, and pre-booked cars through BookAway and Camboticket. Prices range from 100,000 KHR ($25) to 120,000 KHR ($30).
Tuk-tuks are a good alternative if you're on a budget and want a more local way to get from Sihanoukville Airport to the city centre. Expect to pay between 48,000 KHR ($12) and 80,000 KHR ($20). You'll find tuk-tuks just outside the airport, but it's cheaper to book them through the Grab app.
Check out our full Sihanoukville Airport guide for a closer look at these options.
TIP: If you decide to travel by plane, please consider including a carbon compensation fee to reduce your impact on the environment.
Siem Reap to Sihanoukville by Taxi
A private transfer from Siem Reap to Sihanoukville is the easiest and most convenient option. The journey takes 8h 30m, and you’ll be dropped off right at your accommodation — no need to worry about extra transfers.
Prices for private transfer start at 631,000 KHR ($155) for a 4-seater. Split it with your group, and it’s about 158,000 KHR ($40) each.
Private Transport options from Siem Reap to Sihanoukville
Rounding it up
We hope this guide was helpful in planning how to get from Siem Reap to Sihanoukville. If there's anything else you're wondering about, drop us a comment and we'll do our best to answer you within a few days.
PS: If you've recently travelled this route, share your experience with fellow travellers and help us improve this post. Thanks for helping out our travel community!
Frequently Asked Questions
The distance from Siem Reap to Sihanoukville is 530 km.
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About the Author
Founder & Trip Planning Expert
Based in Bali, Maarten's passion for travel is undeniable. In 2016, he decided to quit his job as a stock analyst and started doing what he always dreamed of: travelling through South East Asia and helping other people plan their trips. When he is not working on Gecko Routes, you'll find him surfing in the ocean or exploring the best gems of Indonesia.
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