Most visitors cross without trouble, but the experience depends heavily on which checkpoint you choose, what documents you carry, and how you plan the journey. This guide covers the main land crossings, bus routes, visa requirements on both sides, and what actually happens when you step up to the immigration window.
Visa requirements: what you need before you arrive
Get the paperwork right before you reach the border, because neither country offers much flexibility at the checkpoint.
For entering Vietnam:
Most nationalities need a visa in advance. The Vietnam e-visa covers 80+ countries and allows a single or multiple entry stay of up to 90 days. Apply online at the official government portal, pay the 25 USD fee, and receive approval within 3 to 5 working days. Print the approval letter and bring two passport photos.
Some nationalities qualify for visa exemptions, including citizens of Japan, South Korea, several European countries, and Southeast Asian neighbors. Exemption periods range from 14 to 45 days depending on nationality. Check the list before assuming you can just show up.
The visa on arrival system only applies to those flying into one of Vietnam's international airports. Land borders do not process visa on arrival. If you arrive at Moc Bai without a visa, you will be turned back to Cambodia.
For entering Cambodia:
Cambodia is more relaxed. Most nationalities can get a visa on arrival at any land border for 30 USD, payable in US dollars, Thai baht, or Cambodian riel. The process takes 10 to 15 minutes: fill out the application form, hand over one passport photo, pay the fee, and wait for the stamp.
Alternatively, apply for an e-visa online before departure. The Cambodian e-visa costs 36 USD and is valid for 30 days. It works at major land crossings including Bavet (Moc Bai), Poipet, and the border crossings near Ha Tien. The e-visa saves time at the border, but the visa on arrival is just as reliable for most travelers.
Passport validity is a common sticking point. Both countries require at least six months remaining validity. Border officials check this carefully, and an expiring passport means rejection.
Pro tip: Carry 2 to 3 spare passport photos. Both countries may ask for one, and the photo booths at border crossings are expensive and low quality.
The main crossings: which one fits your route
Five land crossings see regular tourist traffic. Each serves a different itinerary.
| Checkpoint | Vietnam side | Cambodia side | Best for | Opening hours |
|---|---|---|---|---|
| Moc Bai | Tay Ninh province | Bavet | Ho Chi Minh City to Phnom Penh | 6:00 AM - 10:00 PM |
| Tinh Bien | An Giang province | Phnom Dhen | Chau Doc to Phnom Penh | 7:00 AM - 5:00 PM |
| Ha Tien | Kien Giang province | Prek Chak | Phu Quoc to Kampot and Sihanoukville | 7:00 AM - 6:00 PM |
| Xa Mat | Tay Ninh province | Trapeang Phlong | Quieter alternative to Moc Bai | 7:00 AM - 5:00 PM |
| Le Thanh | Gia Lai province | O Yadav | Central Highlands to northeastern Cambodia | 7:00 AM - 5:00 PM |
Moc Bai to Bavet is the busiest and most straightforward crossing. It sits on the main highway between Ho Chi Minh City and Phnom Penh, about 80 kilometers from each city. The crossing involves walking through two separate immigration buildings separated by a no-man's land of about 300 meters. Expect crowds, touts offering currency exchange at poor rates, and occasional queues of 30 to 60 minutes during peak hours.
Tinh Bien to Phnom Dhen serves the Mekong Delta route. Travelers coming from Chau Doc, the river town famous for its floating fish farms and Sam Mountain, cross here to continue to Phnom Penh by road. The crossing is smaller and slower than Moc Bai, but it pairs well with a boat trip down the Chau Doc River to the border.
Ha Tien to Prek Chak is the gateway to Cambodia's southern coast. Travelers heading from Phu Quoc to Kampot or Sihanoukville use this crossing. The journey involves a ferry from Phu Quoc to Ha Tien, then a short bus ride to the border. The crossing itself is straightforward, with both immigration buildings close together.
Xa Mat to Trapeang Phlong is a quiet alternative to Moc Bai, located about 60 kilometers north. Few tourists use it, which means faster processing and less hassle. However, public transport connections are limited, and most travelers who choose this route arrange private transport.
Le Thanh to O Yadav serves the Central Highlands. Travelers heading from Pleiku or Kon Tum into northeastern Cambodia use this crossing. It is remote, with limited facilities, and public buses are rare. This crossing suits those on a motorbike journey or with a private car.
Bus routes: the practical options
Ho Chi Minh City to Phnom Penh
This is the most traveled route, with dozens of daily departures. Several bus companies operate the route, including Kumho Samco, Mekong Express, and Giant Ibis. The journey takes 6 to 7 hours including border formalities.
Buses depart from Ho Chi Minh City's central districts, usually from Pham Ngu Lao Street in District 1. Most companies offer hotel pickup for an extra fee. The bus stops at Moc Bai on the Vietnamese side, where passengers get off, walk through immigration, and reboard on the Cambodian side.
Fares range from 350,000 to 500,000 VND ($14 to $20) depending on the company and seat class. Giant Ibis and Mekong Express are the premium options, with air conditioning, Wi-Fi, and slightly more legroom. Kumho Samco is cheaper but still comfortable.
The bus makes a rest stop about halfway, usually at a roadside restaurant near the border. Expect to spend 45 to 60 minutes total at the border crossing.
Warning: Keep your passport and visa documents in your daypack, not in the luggage compartment. You will need them at immigration, and retrieving bags from the hold mid-journey causes delays.
Ho Chi Minh City to Siem Reap
For travelers heading directly to Angkor Wat, several companies operate direct buses. The journey takes 12 to 14 hours, including border formalities and a meal stop. Fares range from 500,000 to 700,000 VND ($20 to $28).
These buses cross at Moc Bai, then continue through Phnom Penh before heading north to Siem Reap. Some companies split the journey with an overnight stop in Phnom Penh, while others run straight through. The direct overnight buses are popular but tiring.
Chau Doc to Phnom Penh
The Mekong Delta route combines a boat ride with a short bus segment. Boats depart from Chau Doc's riverfront daily at 7:00 AM and travel down the Chau Doc River to the Tinh Bien border. The boat ride takes about 2 hours and costs 200,000 to 300,000 VND ($8 to $12).
At the border, passengers clear Cambodian immigration, then board a waiting bus for the final 2.5-hour drive to Phnom Penh. The total journey takes 6 to 7 hours. This route offers scenic river views and a more relaxed pace than the highway bus.
Ha Tien to Kampot and Sihanoukville
Buses from Ha Tien cross at Prek Chak and continue to Kampot (2 hours) or Sihanoukville (4 hours). Fares are 150,000 to 250,000 VND ($6 to $10). Several daily departures operate, mostly in the morning.
Travelers coming from Phu Quoc take a ferry to Ha Tien first. Ferries run from Bai Vong Port on the island's northern tip to Ha Tien's mainland port. The crossing takes 90 minutes and costs 250,000 to 350,000 VND ($10 to $14). From the ferry terminal, a short taxi ride reaches the bus station or the border directly.
What to expect at the border: a step-by-step walkthrough
The process at each crossing follows the same pattern, with minor variations in building layout and crowd levels.
Step 1: Arrive at the Vietnamese checkpoint. Your bus drops you off at a parking area near the Vietnamese immigration building. Touts may approach offering to "help" with paperwork or currency exchange. Decline politely and proceed to the immigration hall.
Step 2: Vietnamese exit procedures. Queue at the immigration counter, present your passport and visa, and receive an exit stamp. This process usually takes 5 to 10 minutes. No forms are required for exit.
Step 3: Walk through the no-man's land. At Moc Bai, this is a 300-meter walk past duty-free shops, currency exchange booths, and food stalls. At smaller crossings, it is a 50-meter stroll.
Step 4: Cambodian entry procedures. At the Cambodian immigration building, present your passport, visa (if you have one), and a completed arrival form. If you need a visa on arrival, collect the application form, fill it out, and pay the 30 USD fee. The officer stamps your passport and waves you through.
Step 5: Reboard the bus. On the Cambodian side, your bus awaits in a designated parking area. Find your seat and wait for other passengers. The entire process takes 45 to 90 minutes depending on crowd levels.
Pro tip: Carry small US dollar bills for the Cambodian visa fee. Cambodian officials rarely have change for 50 or 100 USD notes. ATM withdrawals in Cambodia dispense US dollars, which is the de facto currency.
Costs and hidden fees to watch for
The official costs are straightforward: a 30 USD Cambodian visa fee and no exit fees on either side. But travelers report occasional requests for "stamp fees" or "processing fees" by border officials, especially at smaller crossings.
These requests are unofficial. The standard response is a polite "no, thank you." Officials may persist, but they usually back down when travelers hold firm. Paying a small bribe (2 to 5 USD) is common practice for those in a hurry, but it is not required.
Currency exchange at the border offers poor rates. Both Vietnamese dong and Cambodian riel are accepted in border towns, but the exchange rate at border stalls is 3 to 5 percent worse than at city banks. Exchange money before you arrive, or withdraw local currency from ATMs in the nearest city.
Which crossing should you choose?
The choice depends on your itinerary, not on which border is "better."
Choose Moc Bai if: You are traveling between Ho Chi Minh City and Phnom Penh. It is the fastest, most reliable, and best-connected crossing. The crowds are manageable outside peak hours (9:00 AM to 11:00 AM and 2:00 PM to 4:00 PM).
Choose Tinh Bien if: You are exploring the Mekong Delta and want the river boat experience from Chau Doc. The crossing is slower but more scenic, and it avoids backtracking to Ho Chi Minh City.
Choose Ha Tien if: You are heading to or from Phu Quoc and continuing to Cambodia's coast. This crossing is essential for that route, though the ferry adds time and cost to the journey.
Choose Xa Mat or Le Thanh if: You are on a motorbike tour or seeking a quiet crossing with minimal crowds. These borders require private transport and offer little in the way of services.
Practical tips for a smooth crossing
Start early. Morning crossings are faster and leave more time for unexpected delays. The worst queues at Moc Bai form between 9:00 AM and 11:00 AM when multiple buses arrive simultaneously.
Check your visa dates. Vietnamese exit stamps are not always checked against your visa's validity, but Cambodian entry officials may ask questions if your Vietnamese visa expires within a few days. Extending a Vietnam visa before you leave is easier than explaining an overstay at the border.
Keep your documents accessible. Passport, visa, and photos should be in a zippered pocket or small pouch. Digging through a backpack at the immigration counter is a sure way to slow down the process and draw attention.
Know the opening hours. All crossings close at night. If you arrive late, you will need to wait until morning or find accommodation on either side. Moc Bai has the latest closing time at 10:00 PM.
Book buses with reputable companies. The cheapest operators sometimes skip the official border crossing or drop passengers at unofficial points. Stick with established companies like Giant Ibis, Mekong Express, or Kumho Samco.
The Mekong Delta alternative: river crossings and boat routes
For travelers who want something beyond a highway bus, the Mekong Delta offers a unique border experience. The Chau Doc to Phnom Penh boat route crosses at Tinh Bien, but a less-known option is the speedboat from Chau Doc directly to Phnom Penh via the Bassac River.
Speedboats depart from Chau Doc's riverfront and travel 4 to 5 hours downriver to Phnom Penh's tourist pier. Fares range from 400,000 to 600,000 VND ($16 to $24). The boats make a brief stop at the Vietnamese border post for exit formalities, then continue into Cambodia without requiring a separate land crossing.
This option costs more than the bus but offers river views, a cooler journey, and a more relaxed pace. It is especially popular with travelers heading to Phnom Penh after exploring the Mekong Delta's floating markets and riverside towns.
Frequently asked questions
Q: Do I need a visa for Cambodia if I am just passing through? Yes. All travelers entering Cambodia need a valid visa or visa exemption. The visa on arrival costs 30 USD and is available at all land borders. There is no transit exemption for land crossings.
Q: Can I cross the border on a motorbike? Yes, but it requires extra paperwork. Both countries require a temporary vehicle import permit, proof of ownership, and valid insurance. The process adds 30 to 60 minutes at each border. Many travelers choose to rent motorbikes separately on each side instead.
Q: What happens if my visa expires while I am in Vietnam? Overstaying a Vietnamese visa results in a fine of about 500,000 VND ($20) per day, payable at the border or at an immigration office. Serious overstays (over 30 days) can lead to deportation and re-entry bans. Extending a Vietnam visa before expiration is the safer option.
Q: Are there ATMs at the border crossings? Yes, but they are unreliable. Moc Bai and Bavet have ATMs that dispense both Vietnamese dong and US dollars, but they sometimes run out of cash or charge high fees. Withdraw money in Ho Chi Minh City or Phnom Penh before crossing.
Q: How long does the border crossing take? Expect 45 to 90 minutes total, including both immigration procedures and the walk between buildings. Peak hours at Moc Bai can stretch this to 2 hours. The smaller crossings are usually faster.
Q: Can I cross the border at night? No. All land crossings between Vietnam and Cambodia close at night. Moc Bai closes at 10:00 PM, the others between 5:00 PM and 6:00 PM. Plan your bus schedule accordingly.
Q: Is it safe to cross the border independently? Yes. The border crossings are safe and well-policed. The main risks are petty scams, overcharging by touts, and unofficial fees at immigration. Staying aware and carrying the correct documents minimizes these risks.
Q: What is the best way to get from Phu Quoc to Cambodia? Take a ferry from Phu Quoc to Ha Tien, then a bus or taxi to the Ha Tien-Prek Chak border crossing. From there, buses continue to Kampot and Sihanoukville. The total journey takes 4 to 5 hours and costs about 400,000 to 500,000 VND ($16 to $20).