3-Week Thailand, Cambodia and Vietnam Tour Packages
Three weeks across Indochina delivers culture in bucket loads! Explore Bangkok's temples, visit Angkor Wat's sunrise, discover Halong Bay's cruises, tour Hoi An's ancient town, and experience the Mekong Delta. You're tasting cuisines that share ingredients but taste different, seeing Buddhist and Hindu influences, meeting friendly locals everywhere, and truly soaking up these Southeast Asian delights.
Insider tips: Recommended 3-week Thailand, Cambodia And Vietnam tour itineraries
Compiled by

NinaThailand, Cambodia and Vietnam travel expert at TourRadar
21 Days in Southeast Asia, incl. Bangkok and Angkor Wat
A rich tapestry of 17 cities across Thailand, Cambodia, and Vietnam reveals itself over 21 days, from Bangkok's Damnoen Saduak Floating Market to Angkor Wat. UNESCO sites like My Son Sanctuary and Ha Long Bay cruise await. For ages 5+, approx. $250/day includes 18 hotel nights, 1 cruise night, and English-speaking guides.

- Days 1-2
Bangkok & Damnoen Saduak
Start your journey in Thailand's bustling capital. Visit Damnoen Saduak Floating Market by long-tail speedboat. Get there before 8am to avoid crowds and heat. A recent visitor shared: "The early morning market visit was magical, watching locals paddle between stalls selling fresh produce and traditional sweets." Take the overnight train to Chiang Mai (14h20m). Book a lower berth for easier access.

- Days 3-4
Chiang Mai
- Days 5-8
Luang Prabang
Take a 1-hour flight to this UNESCO-listed town in Laos. Get up at 5:30am to see the daily alms ceremony with hundreds of monks. Pack clothes that cover shoulders and knees. Visit Pak Ou Caves by boat and swim at Kuang Si Falls. Bring water shoes for slippery paths. A visitor noted: "Watching the monks collect alms at sunrise was humbling. Bring a shawl—it gets chilly in the morning."

- Days 9-11
Hanoi & Halong Bay
- Days 12-14
Hoi An
- Days 15-17
Ho Chi Minh City & Mekong Delta
- Days 18-21
Siem Reap & Angkor
21 Day Indochina Itinerary, incl. Hanoi and Bangkok
An extensive 21-day route covers 10 cities across Vietnam, Cambodia, Laos, and Thailand. The tour showcases Halong Bay's limestone karsts, Angkor Wat temple complex, Cu Chi Tunnels near Ho Chi Minh City, and Bangkok's Grand Palace. Five internal flights connect luxury stays at properties like Tara Angkor Hotel, from floating markets to water puppet shows.

- Days 1-2
Hanoi, Vietnam
Start your journey in Vietnam's capital by wandering the Old Quarter's winding streets. One traveler shared: "Watching the monks collect alms at sunrise was humbling - bring a shawl, it gets chilly in the morning." Visit the Temple of Literature early at 8am to avoid tour groups and take a cyclo tour through the French Quarter. Book afternoon flights into Hanoi since morning traffic can be challenging.

- Days 3-4
Halong Bay
- Days 5-6
Hoi An
- Days 7-9
Ho Chi Minh City & Mekong Delta
- Days 10-12
Siem Reap, Cambodia
Take three full days to explore the temples. Watch sunrise at Angkor Wat with a 4:30am start. Visit quieter temples like Preah Khan in the afternoon when crowds are smaller. Bring a portable fan and extra water bottles inside the temples.
- Days 13-14
Phnom Penh
Take the river cruise from Siem Reap but avoid during dry season. See the Royal Palace first thing in the morning. Stop by the National Museum to better understand the Angkor period.
- Days 15-16
Vientiane, Laos
This peaceful capital offers relaxed temple visits and an introduction to Laos' slower lifestyle. Visit COPE Center to learn about Laos' UXO history. Plan your Buddha Park visit for late afternoon light.
- Days 17-18
Luang Prabang
Join the dawn alms ceremony. Take a morning boat ride to Pak Ou Caves when the water is calm. One traveler suggested: "Kuang Si Falls is less crowded after 3pm when tour groups leave."
- Days 19-21
Bangkok, Thailand
Finish in Bangkok. Get to the Grand Palace at opening time (8:30am). Take an afternoon long-tail boat ride through the canals for better photos. Check train times for the Railway Market to plan your visit.
21 Day Southeast Asia Itinerary, incl. Bangkok and Siem Reap
A magnificent 21-day route links Thailand's ancient temples at Doi Suthep, Cambodia's Angkor complex, and Vietnam's Ha Long Bay. Bangkok's floating markets, Hoi An's food scene, and Cu Chi Tunnels highlight the journey. Accommodations include Century Park Bangkok and Victoria Cruise Ha Long.

- Days 1-4
Thailand
Arrive in Bangkok in the evening and head to your hotel. The next day, explore the historic Damnoen Saduak Floating Market by long-tail speedboat before taking an overnight train to Chiang Mai (14.5 hours). When you arrive in Chiang Mai, visit the impressive temples of Wat Phra Singh and Wat Chedi Luang. On day 4, visit Doi Suthep Temple. Get there by 8:30 AM to avoid the tour groups at this 600-year-old sacred site located 5,300 feet up.

- Days 5-8
Laos
Take a quick 1-hour flight to Luang Prabang. Get up at 5:30 AM to watch the alms-giving ceremony with monks. "Bring a shawl, it gets surprisingly chilly during the pre-dawn ritual," one traveler advises. Visit the Royal Palace Museum (closed Tuesdays) and walk up 328 steps to Phousi Hill for sunset views. Take a 2-hour boat trip to see the Buddha-filled Pak Ou Caves and go for a swim at the beautiful Kuang Si waterfall.

- Days 9-11
Northern Vietnam
- Days 12-14
Central Vietnam
- Days 15-17
Southern Vietnam
- Days 18-21
Cambodia
Finish your trip in Siem Reap near the Angkor temples. Wake up at 5 AM to see sunrise at Ta Prohm temple with its massive tree roots growing through ancient stones. One visitor notes: "The early wake-up is worth it - watching dawn break over the temples with hardly anyone else around was magical." Tour Angkor Wat after breakfast when it's still cool.

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What people love about 3-week Thailand, Cambodia and Vietnam tours
- Southeast Asia 21-Day Highlights Tour
A wonderful Trip overall.
- Indochina Tour with Bangkok Extension 21 Days
I had an amazing time on this tour. Everything was very well organized, and the agency provided excellent support throughout the entire trip. They were flexible and easily added extra activities I wanted along the way, which made the experience even better. I’d absolutely recommend this tour to anyone wanting a smooth, well-run Indochina experience.
- 21 Days Fantastic Circle of Vietnam, Cambodia, Thailand & Laos Tour (private guide & driver)Customizable
We were a group of 11 traveling for 21 days, and honestly, we were a bit worried something might go wrong along the way. But Phoebe from UME stayed in touch with us the whole time and was super helpful whenever we needed anything! The local guides in each city were all incredibly kind and welcoming. Huge thanks to everyone for everything you did! We’ll definitely be booking another trip with UME in the future.























