In this post, we will give you all necessary information and advice on how to travel safely and enjoyable by bus from Phnom Penh to Siem Reap.

As you can see from Google map direction, to travel by bus from Phnom Penh to Siem Reap, you would need at least 5 hours. The distance between the main capital of Cambodia (Phnom Penh) to the city of Angkor (Siem Reap) would be 318 Km.
The road condition, in general, is good. But the national roads in Cambodia are not like the highway in your country. There are a lot of unexpected things that might cross the road in any circumstance. To travel safely on the road, we need to respect the speed and always pay attention to the people, animals who might cross the road without any sign.
However, it is quite safe to travel by bus. You need to choose the bus company that applies safety rules strictly to their drivers. We will recommend you the top good reputation bus companies that you can trust.
Let’s start our recommendations:
1. Best Bus Companies
Giant Ibis

Giant Ibis has been recognized as one of best bus companies in Cambodia because of their safety restriction that the bus will respect Cambodia traffic rule that allows maximum speed at only 80 Km/h.
They always have two drivers during the trip so that they can switch from one to another if they get tired.
Their bus is clean and in good condition. They provide Wifi in the bus so that you can work or check the internet along the way.
Because of their good services and reputation, Giant Ibis received a lot of good feedback from the travelers.
Mekong Express

Mekong Express is also another bus company that started their operations since 2002. So far, they maintain a very good reputation in term of applying safety rules and giving customers satisfaction. They operate many routes inside Cambodia and also to Ho Chi Minh, Vietnam.
They have many types of bus, including VIP and they are usually maintained well by routine maintenance schedules.
2. Book the bus ticket in advance
Thank the revolution fo the technology, you can book any bus ticket in advance. Here are the 2 online booking providers I like to recommend:
- Camboticket - Provides online booking for bus, taxi and ferry tickets across Cambodia, Vietnam, Thailand, and Laos.
- BookMeBus - It’s a Cambodian startup company, provides also online booking for the bus, taxi and ferry tickets across the Mekong region.
3. Wear Comfortable clothes
Cambodia is a hot country no matter which season you visit the country. What I like to recommend during you take the bus is to wear comfortable and easy clothes such as the t-shirt and jean.
4. Grab some books or movies
You might want to see the landscape along the way while taking the bus from Phnom Penh to Siem Reap. That is good. But if you want to read books or watch movies, I wrote a few recommendations below:
5. Avoid taking unclean food
You will be offered a lot of street food during the bus stops. You can judge by its cleanness. Cambodian street food is generally clean. Avoid taking ices or insects. You can try but take it at your own risk.
Rice, pork, fish, noodle are generally Ok to take.
In case you have an emergency need to go to the toilet, you can stop the bus anytime. There are gas stations along the road which usually offer clean toilets to the passengers.
Do not hesitate to ask gently to the driver. It happens all the time.
6. Use Taxi booking app
When you arrive at Siem Reap, you can use Taxi booking app to save money and easy to order. There are 2 popular Taxi booking apps: PassApp (iOS, Android) and Grab.
That’s the best tips I can give. If you have any question, feel free to send me an email or ask directly in the comment session.
Book your bus ticket in advance now!
PS: The header image is the copyright of the Mekong Express company.


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