3-Week South East Asia Tour Packages
Southeast Asia is magical, and three weeks taking in Thailand, Vietnam, Cambodia, maybe Laos or Singapore is a dream. Visit Angkor Wat, Ha Long Bay, try Bangkok street food, check out Hanoi Old Quarter, and stunning tropical islands. Markets to temples, cities to beaches. Southeast Asia packs diversity into affordable welcoming region. It’s fascination every step of the way.
Insider tips: Recommended 3-week South East Asia tour itineraries
Compiled by

NadineSouth East Asia travel expert at TourRadar
21 Day Indochina Itinerary, incl. Hanoi and Bangkok
A grand 21-day tour connects 10 major Asian cities. The itinerary combines UNESCO sites, iconic waterways, and cultural immersion. Includes 5 internal flights and hotels rated 4.8/5.

- Days 1-2
Hanoi
Begin your journey in Vietnam's vibrant capital. "The Old Quarter has such authentic charm - get there early around 7am to watch locals doing tai chi by Hoan Kiem Lake." Visit the Temple of Literature in the morning for the best photo opportunities. Start your day at the One Pillar Pagoda before the 10am crowds arrive.

- Days 3-4
Halong Bay
- Days 5-6
Hoi An
- Days 7-9
Ho Chi Minh City & Mekong Delta
- Days 10-11
Siem Reap
Get up at 4:30am to see Angkor Wat at sunrise. Visit Ta Prohm late afternoon when crowds thin out. "The Phare Circus evening show was an unexpected highlight - book in advance as it sells out."
- Days 12-13
Phnom Penh
Take the scenic Mekong river cruise from Siem Reap (4.5 hours). Get to the Royal Palace at 8am opening time. Visit the Killing Fields early morning when the atmosphere is more suitable for reflection.
- Days 14-15
Vientiane
Take time to explore Laos' relaxed capital. Photograph That Luang temple at sunrise. Learn about Laos' UXO history at COPE Center. "The night market along the Mekong was perfect for trying local food safely."
- Days 16-17
Luang Prabang
Watch the daily alms ceremony at 5:30am. Take a morning boat to Pak Ou Caves when river mist creates beautiful views. Visit Kuang Si Falls by 8:30am before crowds arrive.
- Days 18-21
Bangkok
Finish in Thailand's exciting capital. Visit the Grand Palace at 8:30am opening time. "The Ayutthaya day trip was much better by boat than bus - more relaxing and great river views." Experience the Railway Market during early morning local shopping hours.
21 Day Indochina Itinerary, incl. Luang Prabang and Phnom Penh
A magnificent 21-day route through 11 cities spans three countries. From Luang Prabang's temples to Siem Reap's ancient ruins, UNESCO sites and local traditions abound. Luxury awaits at Borei Angkor Resort and Halong Bay cruise. Costs approx. $130 per day.

- Days 1-3
Luang Prabang
Start your journey in Laos's spiritual center. Get up early for the alms-giving ceremony at 5:30 AM and bring a shawl for the cool morning air. Take a boat trip on the Mekong to Pak Ou Caves and stop at Ban Xanghai village to sample rice wine. Spend your afternoon at the Royal Palace Museum and Wat Xiengthong. Save one evening to browse the night market.

- Days 4-5
Vientiane
- Days 6-8
Hanoi & Ninh Binh
- Days 9-10
Halong Bay
- Days 11-12
Hue
- Days 13-15
Hoi An
- Days 16-17
Ho Chi Minh City & Mekong Delta
- Days 18-19
Siem Reap
- Days 20-21
Phnom Penh
Highlights of Vietnam, Cambodia & Thailand 21 Days
A 21-day tour connects 10 Southeast Asian cities from Hanoi to Phuket. UNESCO sites of Halong Bay and Angkor temples highlight the journey. Selected 3-star properties host guests while touring Vietnam (6 cities), Cambodia (2 cities), and Thailand (2 cities).

What people love about 3-week South East Asia tours
- Indochina Tour with Bangkok Extension 21 Days
The tour was very organised and saw some amazing temples. The tour is flexible and you can add or change some of the visits to suit your requirements. Most of the accommodation was good as we went for standard hotels but might think of upgrading especially in the big city’s.
- Highlights of Vietnam, Cambodia & Thailand 21 Days
We had a really wonderful tour
- Ultimate Vietnam, Cambodia & Thailand Tour – 21 Days with Halong Cruise & Mekong River Crossing
We spent more than 3 weeks in SeA Sunny helped to organize unforgettable experiences in Vietnam Cambodia and Thailand. We requested few extra days for beach relaxation. All excellent.

































