Passing through Cambodia Land borders between Cambodia and Laos, Thailand, and Vietnam are now blocked, making it impossible to enter or exit the country. The only land crossings are with Thailand at Preah Vihear and at Poipet. These crossings are used by traffic heading into Vietnam.
Cambodia has no visa requirements for citizens of the United States, Australia, New Zealand, Canada, Japan, Singapore, South Korea, Malaysia, China (except Hong Kong), India, Indonesia, the Philippines, Russia, Europe (except France), Egypt, Israel, Lebanon, Libya, Morocco, Syria, Tunisia, Turkey, Ukraine, and most countries of Central America except Costa Rica. However, many countries require you to register with the Ministry of Foreign Affairs, so check ahead of time. There are also some countries where it is recommended not to travel without a visa, so be sure to check before you go.
In addition, there are no restrictions on visiting schools within Cambodia, but please respect school hours and dress codes. If you are invited to a Cambodian school as a guest speaker or consultant, please discuss with your host what the protocol is for visiting schools.
Getting into Cambodia Tourism travel to Cambodia is now banned. Flights to Cambodia often involve a stopover at one of Southeast Asia's international hubs, so options are restricted. Cambodia's land borders with Laos, Thailand, and Vietnam remain closed. In addition, the government has declared the entire country a disaster zone after two major earthquakes in April and May.
However, visitors can still reach all but four provincial capitals by road. The exceptions are Battambang, Kratie, and Stung Treng, which are only accessible by boat. All other towns and cities can be reached by bus or minivan taxi.
In conclusion, yes you can travel to Cambodia right now but it is not recommended due to the border closures and damaged infrastructure. If you do decide to go, we recommend using online booking services such as Booking.com or Expedia who have reduced their prices for bookings made during this time.
There are currently no railway links between Thailand and Cambodia. If you wish to travel a train from Thailand to Vietnam, you can take a train from Bangkok to Aranya Prathet, Thailand's most popular port near Cambodia, and then to Vietnam. The journey takes about 15 hours.
There are two types of trains in Thailand: ordinary trains and express trains. Ordinary trains usually take 12-14 hours to cover the 730 km (460 mi) distance between Bangkok and Aranya Prathet. Express trains only run once or twice a week and they cut out all stops except for at stations where passengers can change trains or buses. The fastest train in Thailand goes from Bangkok to Aranya Prathet in just under 11 hours.
Thailand's rail network has improved greatly over the last few years and today it is possible to travel almost everywhere by train. However, there are still problems with availability and prices of tickets so it's best to book in advance if you need to go with a specific date then maybe consider flying.
The cheapest way to get from Bangkok to Vietnam is by bus. There are regular buses connecting Aranya Prathet in Thailand with Ho Chi Minh City and other major towns such as Can Tho and Hai Phong. The trip takes about 15 hours.
The easiest way to get from Bangkok to Vietnam is by boat.