How to Travel from Thailand to Cambodia and Vietnam: A Complete Guide

Thailand, Cambodia, and Vietnam sit so close together on the map that it makes perfect sense to visit them all in one trip. If you’re already exploring Thailand, why not extend your adventure to Cambodia and Vietnam? It’s a great way to make the most of your time in Southeast Asia.

The most common and fastest way to travel from Thailand to Cambodia and Vietnam is by flight, taking just 1 hour and 15 minutes from Bangkok to Phnom Penh, and 1 hour and 30 minutes to Ho Chi Minh City. There are also local sightseeing buses—they’re more budget-friendly but take a long time, usually spending between 4 and 13 hours, depending on the route.

In this guide, we’ll share the most practical tips for traveling from Thailand to Cambodia and Vietnam—from transportation options to how much time you’ll need, recommended routes, and more. Prepare for an unforgettable journey in these three amazing countries!

Why Traveling Thailand, Cambodia, and Vietnam Together Makes Sense

When planning an overseas trip, choosing the perfect destination can often be a tough decision. But trips to Thailand, Cambodia, and Vietnam make for an appealing and wise combination. If these countries’ scenery has sparked your wanderlust, here are a few more reasons that will help you confidently make your choice.

Geographical Proximity
First, from a geographical standpoint, Thailand, Cambodia, and Vietnam are all located in Southeast Asia. Cambodia shares its northwest border with Thailand and its southeast border with Vietnam, making travel between the three countries quite easy.

Whether you’re crossing by land or a flight, you can quickly move from Thailand’s lively beaches to Cambodia’s ancient Angkor temples, and then dive into the charming landscapes of Vietnam. Without making a long, exhausting cross-continental travel, you will experience the diverse cultures of Southeast Asia.

Thailand Cambodia Vietnam trip map.

Easy Flight Connections
Second, the flight connections between the three are just so convenient. Bangkok, Thailand’s capital, is served by a modern international airport with a variety of flights. To reach the heart of the Angkor temples, you will easily find direct flights from Bangkok to Cambodia’s Siem Reap and Phnom Penh.

Likewise, there are many options for flying into Vietnam’s Ho Chi Minh City and Hanoi. Cambodia’s Siem Reap and Phnom Penh airports are also important hubs, which not only connect with Thailand, but also have frequent flights in and out of major Vietnamese cities. These routes are direct flights and typically range from just 1 to 2 hours at a very reasonable price.

Simple Visa Processes
Finally, it's worth mentioning the relatively simple visa application in Vietnam Cambodia Thailand. Thailand offers a 60-day visa-free policy for citizens of 93 countries and regions. The process is straightforward: just submit the required documents, pay a fee of 30 USD, and you'll be all set to start your journey in Thailand.

Cambodia has a similarly welcoming visa policy, with most visas valid for 30 days. You can easily apply for a visa online via the official website (http://www.evisa.gov.kh), by filling out the application form, uploading a passport photo, and paying a 36 USD visa fee. Your visa will be ready in just three business days.

Vietnam offers an e-Visa service for citizens of most countries, allows you to apply online for a single-entry tourist visa at a cost of 25 USD. The visa is valid for up to 30 days. If you're from a country that doesn't have a visa exemption, you'll need to apply for an approval letter in advance to get a visa. 

Cambodia visa valid for 30 days.

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The Best and Easiest Way: Flying from Thailand to Cambodia and Vietnam

When arranging an enjoyable trip from Thailand to Cambodia and Vietnam, the convenience and time savings of flying are evident. Flying is substantially faster than other modes of transportation. Phnom Penh can be reached from Bangkok in only 1 hour and 15 minutes, and Ho Chi Minh City can be reached in just 1 hour and 30 minutes.

Furthermore, flights between Thailand, Cambodia, and Vietnam are frequent, with many high-end airlines offering a comfortable, luxurious experience. If you're on a budget, don't worry. Southeast Asia is home to plenty of low-cost carriers that provide affordable options, you can choose the flight that best suits your needs.

Here’s a table with information on major airports and airlines offering direct flights:

For an Adventurous Experience, Take the Local Sightseeing Bus

Although flying is a simple and effective way to travel between Thailand, Cambodia, and Vietnam, traveling a local bus gives a whole different experience. Taking a sightseeing bus from Thailand to Cambodia and Vietnam can be a better choice if you're searching for an adventure with fascinating scenery.

There are three direct bus routes from Bangkok to Cambodia, with the fastest taking you to Poipet, just a 4-hour journey. From there, you can take a direct bus to Ho Chi Minh City in Vietnam, passing through Phnom Penh and Siem Reap on the fastest route, which takes only 6 hours. Here’s a look at some popular bus routes:

Although it's less expensive to take local buses from Thailand to Cambodia and Vietnam, the lengthy bus rides might quickly wear you out. Cross-border buses often involve more complicated border procedures, so it’s important to weigh your options carefully. Flying might be a better option if you prioritize comfort and efficiency.

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Ideal Tour Duration: 10 to 14 Days for Thailand, Vietnam, and Cambodia

How long to travel Thailand, Cambodia and Vietnam? The ideal duration is between 10 and 14 days. It offers you the opportunity to visit the main cities and well-known sites in each country for three to five days, while still having plenty of time to unwind and experience the local way of life.

Starting your journey in Thailand, upon arriving in Bangkok, the splendid Grand Palace will instantly immerse you in the country’s deep Buddhist atmosphere. Then head to Phuket and Pattaya to enjoy warm sunshine and beautiful beaches. If you still have time, don’t miss Chiang Mai! Where you can soak yourself in the peaceful, cultural vibe of the ancient city.

Flying from Thailand to Cambodia is very convenient, and a visit to Angkor Wat is an absolute must. Spend a day exploring the Angkor ruins and relive the grandeur of the Khmer Empire. Then, take 1 or 2 days to visit Phnom Penh. Touring the Royal Palace and the National Museum, delving into Cambodia's rich history and cultural heritage.

Finally, fly to Vietnam. In Ho Chi Minh City visit the War Remnants Museum, explore the Cu Chi Tunnels, and gain insight into the resilience and resourcefulness of the Vietnamese people during the war. Reserve some time for Hanoi, where you can wander the lively Old Quarter, getting a true feel for the rhythm of traditional Vietnamese life.

Phuket beach tour.

Best Time to Visit: November to March for Optimal Weather

Thailand, Vietnam, and Cambodia all have a tropical monsoon type of climate, characterized by distinct wet and dry seasons. The best time to visit these three countries is from November to the end of March, during the dry season.

During November and March, the average temperature for the majority of places falls between 25°C to 30°C. It is perfect for sightseeing. But be aware of the high-temperature reactions from long time exposure to the sun. Taking sun protection measures is necessary.

November to March is also the peak tourist season. At Christmas, New Year, and during the festivities of the Lunar new year, the number of visitors can be at an all-time high. So it’s a good idea to avoid the holiday rush and make early reservations for hotels and attraction tickets.

November and March is best time travel to Combodia.

Insider Tips for Visiting Thailand, Vietnam, and Cambodia

In Thailand, the baht is the official currency. In Cambodia, the riel is used. In Vietnam, you'll need the dong. It’s always a good idea to carry some local currency for small purchases, but having a few US dollars on hand for emergencies can be very helpful.

When visiting these countries, remember to respect their rich traditions. In Thailand and Cambodia, the monarchy and Buddhist customs are deeply cherished, remember to dress modestly when visiting temples and religious sites.

Getting around can be part of the adventure! Tuk-tuks are a fun and iconic way to travel in Thailand and Cambodia, just be sure to agree on the price before hopping in. In Vietnam, motorbike taxis are everywhere, but it’s best to choose a driver who seems reliable.

Keep an eye on your belongings, especially in busy tourist spots. Stick to reputable food vendors and avoid unlicensed sellers. And when crossing the street, especially in Vietnam’s bustling cities, take extra care—traffic can be a little wild but manageable with patience and caution!

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Conclusion

From Thailand's lively energy to Cambodia's alluring mysteries and Vietnam's attractive charm, a journey through these three wonderful nations is sure to leave you with unforgettable experiences and a true appreciation for Southeast Asia's beauty.

Dreaming of a stress-free, perfectly planned adventure? Contact our travel experts to take the reins! With their extensive experience and personalized service, they’ll craft every detail of your itinerary. So, come on, your unforgettable journey awaits!