Thailand-Vietnam-Cambodia itinerary for 3 weeks: Discover temples, cities, beaches, and local flavors on this epic Southeast Asia journey!
Southeast Asia, with its rich cultures and diverse landscapes, has always been a fascinating destination for travelers from all over the world. Among them, Thailand, Vietnam, and Cambodia stand out with their unique and unmissable experiences. Exploring these three countries in three weeks will provide you with unforgettable memories and deep insights into the region’s history, culture, and natural beauty. In this article, join us at Asia Legend Travel as we’ll help you craft an ideal Thailand-Vietnam-Cambodia itinerary for 3 weeks to explore the best of these three countries.
Why Should You Choose to Travel to 3 Countries: Thailand-Vietnam-Cambodia Itinerary for 3 Weeks?
Southeast Asia is a dream destination for travelers seeking a perfect blend of history, culture, nature, and cuisine. Among its many gems, Thailand, Vietnam, and Cambodia offer some of the most captivating experiences, making them ideal for a three-week adventure. With well-connected transportation, diverse attractions, and affordable travel costs, these three countries provide an exciting yet manageable journey for all types of travelers.

A Thailand-Vietnam-Cambodia itinerary for 3 weeks is perfect for those who want to explore the region’s iconic landmarks while immersing themselves in local traditions. History enthusiasts can marvel at the ancient temples of Angkor Wat in Cambodia, the imperial citadel of Hue in Vietnam, and the Grand Palace in Thailand. Nature lovers will be mesmerized by Thailand’s tropical islands, Vietnam’s breathtaking Ha Long Bay, and Cambodia’s untouched countryside. Meanwhile, foodies can indulge in world-famous dishes like Thai curries, Vietnamese pho, and Cambodian amok.
This Thailand Vietnam Cambodia itinerary for 3 weeks is ideal for both first-time visitors and seasoned travelers looking for a well-balanced mix of adventure, relaxation, and cultural discovery. Whether you’re a solo traveler, a couple, or a group of friends, a three-week journey through these three countries will leave you with unforgettable experiences and a deeper appreciation for Southeast Asia’s rich heritage.
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Thailand-Vietnam-Cambodia Itinerary for 3 Weeks: Top Destinations and Experiences
If you are planning a 3-week trip and want to experience the wonders that Southeast Asia has to offer, it is important to create a Thailand-Vietnam-Cambodia itinerary for 3 weeks. Below, we have created an ideal itinerary for you to explore the highlights and unique experiences of these three countries in 3 weeks, helping you to fully enjoy your trip. Join us in exploring this itinerary and creating memorable memories for your trip!
Week 1: Thailand – A Vibrant Start to Your Thailand-Vietnam-Cambodia Itinerary for 3 Weeks
Days 1-3: Bangkok – The Heartbeat of Thailand
Why Bangkok Is a Must-Visit on Your Thailand-Vietnam-Cambodia Itinerary for 3 Weeks?

Explore the Grand Palace and Wat Phra Kaew
Thailand-Vietnam-Cambodia itinerary for 3 weeks begins in Bangkok, Thailand’s bustling capital, a fascinating mix of ancient traditions and modern energy. One of the most iconic landmarks to visit is the Grand Palace, a dazzling complex that once served as the royal residence. Inside, you’ll find Wat Phra Kaew (Temple of the Emerald Buddha), home to Thailand’s most revered Buddha statue carved from a single block of jade.
Savor Bangkok’s Street Food and Experience Its Electrifying Nightlife
Bangkok is a street food paradise. Wander through Chinatown (Yaowarat Road) or Sukhumvit’s night markets to sample authentic Thai dishes like Pad Thai, Som Tam (papaya salad), and Mango Sticky Rice. After sunset, experience the city’s vibrant nightlife—whether it’s sipping cocktails at a rooftop bar like Vertigo or exploring the legendary Khao San Road.
Travel Tip: The Grand Palace has a strict dress code—cover your shoulders and knees to be allowed entry.
Traveler’s Experience: “Bangkok blew my mind! The Grand Palace was breathtaking, but the real highlight was eating freshly grilled satay at a night market. And Khao San Road? Absolutely wild!” – Jake, USA
Days 4-6: Chiang Mai – A Cultural Retreat in Northern Thailand
Why Include Chiang Mai in Your Thailand-Vietnam-Cambodia Itinerary for 3 Weeks?

Discover Chiang Mai’s Ancient Temples
Escape Bangkok’s hustle and head to Chiang Mai, a city rich in history and culture. Visit Wat Phra Singh, a stunning 14th-century temple, and make your way to Wat Phra That Doi Suthep, perched on a mountain overlooking the city. The temple’s golden pagoda and panoramic views make it a must-visit.
Experience Local Hill Tribe Life
For a deeper cultural experience, take a guided tour to visit ethnic minority villages such as the Karen, Hmong, or Lisu tribes. Here, you can learn about their traditional weaving techniques and unique way of life.
Travel Tip: Consider joining a Thai cooking class in Chiang Mai to learn how to make classic dishes like Tom Yum and Green Curry.
Traveler’s Experience: “Climbing the 300 steps to Doi Suthep was exhausting, but the view made it all worthwhile. Later, I joined a cooking class and made the best green curry I’ve ever tasted!” – Sophie, UK
Days 7: A Tropical Island Escape – Phuket or Koh Samui
Why Phuket and Koh Samui Are Perfect for Beach Lovers on Their Thailand Vietnam Cambodia Itinerary for 3 Weeks?

Relax on Thailand’s Stunning Beaches
After two weeks of adventure, it’s time to unwind on one of Thailand’s idyllic islands. Choose Phuket for its vibrant nightlife and lively beaches like Patong or Kata, or opt for Koh Samui, where you’ll find Chaweng Beach’s white sand and the serene atmosphere of Lamai Beach.
Island-Hopping and Snorkeling Adventures
Take a boat tour to explore hidden gems like Phi Phi Islands (from Phuket) or Ang Thong National Marine Park (from Koh Samui). These islands offer crystal-clear waters, limestone cliffs, and vibrant coral reefs perfect for snorkeling or kayaking.
Travel Tip: Book your island tours in advance to secure the best spots and avoid last-minute price hikes.
Traveler’s Experience: “Spending my last days in Thailand on a tropical island was the perfect way to end my trip. Snorkeling in Koh Samui’s clear waters was magical—I even saw a sea turtle!” – Luca, Italy
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Week 2: Vietnam – A Deeper Dive into Culture and Nature
Days 8-10: Hanoi – The Heart of Vietnam
Why Make Hanoi a Stop on Your Thailand-Vietnam-Cambodia Itinerary for 3 Weeks?

Explore the Old Quarter and Ho Chi Minh Mausoleum
Hanoi, the capital of Vietnam, is a must-visit destination on any Thailand-Vietnam-Cambodia itinerary for 3 weeks. The Hanoi Old Quarter is the cultural and historical hub of the city, where visitors can wander through narrow streets lined with colonial-era buildings, local markets, and vibrant street food stalls. A visit to the Ho Chi Minh Mausoleum, the resting place of Vietnam’s revered leader, offers a glimpse into the country’s revolutionary history.
Savor Hanoi’s Culinary Delights
Hanoi is a food lover’s paradise, with iconic dishes such as Phở, Bún Chả, and Bánh Xèo. Don’t miss trying Cà phê trứng (egg coffee), a unique and creamy Vietnamese coffee that originated in the city. For the best experience, visit a hidden café overlooking Hoàn Kiếm Lake and enjoy the local atmosphere.
Travel Tip: If you’re interested in local experiences, consider joining a street food tour led by a local guide.
Traveler’s Experience: “I had always heard about Hanoi’s street food, but nothing prepared me for the burst of flavors in Bún Chả! Sitting on a tiny plastic stool in the Old Quarter, watching the city’s chaos unfold, was an experience I will never forget.” – David, USA
Days 11-13: Hue – The Imperial City of Vietnam
Why Visit Hue on Your Thailand-Vietnam-Cambodia Itinerary for 3 Weeks?

Step into History at the Imperial City and Royal Tombs
Hue, Vietnam’s former imperial capital, is a treasure trove of history. The Imperial City (Đại Nội) is a sprawling complex of palaces, temples, and courtyards that reflect the grandeur of the Nguyen Dynasty. Other must-visit sites include the tombs of Emperor Tu Duc, Minh Mang, and Khai Dinh, each showcasing distinctive architectural styles. These mesmerising historical sites make Hue a must-visit for any Thailand-Vietnam-Cambodia Itinerary for 3 Weeks.
Visit Thien Mu Pagoda and Truong Tien Bridge
Perched on the banks of the Perfume River, Thien Mu Pagoda is an iconic Buddhist temple offering stunning views. Meanwhile, the Truong Tien Bridge, built during the French colonial era, lights up beautifully at night and is a great spot for an evening stroll.
Travel Tip: Take a dragon boat ride on the Perfume River at sunset for a magical view of Hue.
Traveler’s Experience: “Hue’s history fascinated me, but what truly stood out was the serene atmosphere along the Perfume River. Watching the sunset from a dragon boat was a moment of pure tranquility.” – Sophia, Australia
Day 14: Ha Long Bay or Hoi An – A Stunning Finale to Your Second Week
Choose The Final Destination for Week Two of Your Thailand-Vietnam-Cambodia Itinerary for 3 Weeks

Option 1: Ha Long Bay – A Natural Wonder
A UNESCO World Heritage Site, Ha Long Bay is a breathtaking landscape of emerald waters and limestone karsts. A Ha Long Bay cruise allows you to explore hidden caves, kayak through lagoons, and enjoy fresh seafood on board – it’s definitely a highlight of any Thailand-Vietnam-Cambodia Itinerary for 3 Weeks.
Option 2: Hoi An – A Charming Ancient Town
Alternatively, you can head to Hoi An, a well-preserved trading port with lantern-lit streets and historic wooden houses. This town is perfect for exploring local culture, tailoring a custom-made outfit, or relaxing at An Bang Beach.
Travel Tip: If you’re short on time, flying from Hanoi to Da Nang (closest airport to Hoi An) is a great way to optimize your itinerary.
Traveler’s Experience: “I couldn’t decide between Ha Long Bay and Hoi An, so I did both! Ha Long Bay was an adventure, but Hoi An stole my heart with its peaceful streets and glowing lanterns.” – Emma, UK
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Week 3: Cambodia – The Final Stop of Thailand, Vietnam, Cambodia Itinerary for 3 Weeks
Days 15-17: Phnom Penh – The Historical Heart of Cambodia
Why Phnom Penh Is a Must-Visit on Your Thailand-Vietnam-Cambodia Itinerary for 3 Weeks?

Discover Cambodia’s Dark History at the Killing Fields and Tuol Sleng
Phnom Penh, Cambodia’s vibrant capital, holds deep historical significance. A visit to the Killing Fields of Choeung Ek and the Tuol Sleng Genocide Museum (S-21 Prison) provides a sobering yet essential understanding of Cambodia’s tragic past under the Khmer Rouge regime. These sites serve as a powerful reminder of resilience and the strength of the Cambodian people.
Explore the Royal Palace and Silver Pagoda
After an emotional morning, balance your day with a visit to the Royal Palace, the official residence of the Cambodian King. Its golden spires, intricate Khmer architecture, and beautifully manicured gardens make it one of Phnom Penh’s most impressive landmarks. Within the complex, the Silver Pagoda houses a magnificent Emerald Buddha and a floor made of over 5,000 silver tiles.
Travel Tip: Wear modest clothing when visiting religious and historical sites, as respect for Cambodian culture is highly valued.
Traveler’s Experience: “Walking through Tuol Sleng was an intense experience—I could feel the weight of history in every room. But later, the peaceful beauty of the Royal Palace reminded me how Cambodia has rebuilt itself with hope and resilience.” – Liam, Canada
Days 18-21: Siem Reap – Home to the Majestic Angkor Wat
Why End Your Thailand-Vietnam-Cambodia Itinerary for 3 Weeks in Siem Reap?

Marvel at Angkor Wat and the Temples of Angkor
No Thailand-Vietnam-Cambodia itinerary for 3 weeks would be complete without visiting Angkor Wat, the largest religious monument in the world. Watching the sunrise over its ancient towers is a breathtaking experience. Beyond Angkor Wat, explore Bayon Temple, famous for its giant stone faces, and Ta Prohm, a jungle-covered temple made famous by the movie Tomb Raider.
Immerse Yourself in Local Culture
Siem Reap is more than just temples. Take time to explore the Old Market (Psar Chaa), where you can shop for local crafts and taste Cambodian delicacies like Amok (fish curry steamed in banana leaves). In the evening, visit Pub Street, a lively area filled with street performers, night markets, and vibrant bars.
Travel Tip: Buy an Angkor Pass (1-day, 3-day, or 7-day options) to explore the temples at your own pace. The 3-day pass is ideal for most travelers.
Traveler’s Experience: “I expected Angkor Wat to be stunning, but nothing could prepare me for the magic of watching the sunrise there. Later, I stumbled upon a street food stall selling Amok—one of the best meals of my trip!” – Emma, Australia
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Best Time to Start Your Thailand Vietnam Cambodia Itinerary for 3 Weeks
Choosing the best time to embark on your Thailand-Vietnam-Cambodia itinerary for 3 weeks is crucial for an enjoyable experience. The ideal period to travel is from November to March, when the weather across all three countries is generally dry and pleasant. This timeframe allows you to explore bustling cities, ancient temples, and stunning beaches without extreme heat or heavy rainfall.

Travel Tips & Packing Essentials
Need some travel tips for your Thailand Vietnam Cambodia itinerary for 3 weeks? Here’s what you should know:
- Pack Light, but Smart: Since you’ll be moving frequently, bring a versatile backpack with lightweight, breathable clothing. Include modest outfits for temple visits in Cambodia and Vietnam, and comfortable shoes for exploring Angkor Wat and bustling markets.
- Visa & Entry Requirements: Check visa requirements before departure. Thailand offers visa exemptions for many nationalities, while Vietnam and Cambodia may require e-visas or visas on arrival.
- Currency & Payments: Each country uses a different currency – Thai Baht (THB), Vietnamese Dong (VND), and Cambodian Riel (KHR) (though USD is widely accepted in Cambodia). Carry a mix of cash and cards for flexibility.
- Health & Safety: Stay hydrated, use insect repellent to avoid mosquito bites, and consider travel insurance to cover medical emergencies or trip disruptions.
- Cultural Etiquette: Respect local customs by dressing appropriately at religious sites, removing shoes before entering temples, and learning basic phrases in Thai, Vietnamese, and Khmer to connect with locals.
By planning ahead and traveling smart, your Thailand-Vietnam-Cambodia itinerary for 3 weeks will be a smooth and unforgettable adventure! If you’re still deciding where to go, check out our take on Vietnam vs Thailand: Which One is Better to match your destination with your travel style. Short on time? Our Vietnam and Thailand itinerary for 2 weeks packs in the essentials without the rush. And if you’re looking to explore iconic sights, food scenes, and hidden gems, don’t miss our guide on trips to Vietnam and Thailand—perfect for first-timers and return visitors alike.
A Thailand-Vietnam-Cambodia itinerary for 3 weeks promises an unforgettable journey through three breathtaking countries, each offering a unique blend of history, culture, and natural beauty. Wander through the ancient temples of Angkor Wat, cruise along the emerald waters of Ha Long Bay, and bask in the sun on Thailand’s pristine beaches. Savor authentic street food, immerse yourself in vibrant local traditions, and uncover hidden gems along the way. Whether you’re a history enthusiast, a nature lover, or a foodie, this itinerary ensures an enriching Southeast Asian adventure filled with incredible sights and unforgettable experiences!