Best Itinerary for Cambodia, Laos & Thailand: The Ultimate 15–21 Day Southeast Asia Adventure

Written by Tony Bùi, with over 20 years of experience guiding more than 100,000 international travellers across Southeast Asia. This guide is crafted from firsthand knowledge and guest feedback at Legend Travel Group.

By Legend Travel Group – Southeast Asia’s Leading Tour Operator
All content © Legend Travel Group | https://www.legendtravelgroup.com

=> Grand Indochina and Thailand Adventure 25-Day

=> Explore Southeast Asia: A Multi-Country Tour 22-Day

=> Legendary of Indochina - 20 Days

This carefully designed 15–21 day journey is the perfect introduction (or deep dive) into the heart of Indochina and Thailand. You’ll witness sunrise over Angkor Wat, cruise the mighty Mekong through Laos, float down the Nam Song River in Vang Vieng, wander the serene temples of Luang Prabang (UNESCO), and finish on Thailand’s stunning beaches — all seamlessly connected with private transfers, domestic flights, and expert local guides.

Legend Travel Group specialises in small-group and private Cambodia Tours, Laos Tours, and Thailand Tours that combine authentic experiences with maximum comfort. Book with confidence — only 10% deposit required, final payment just 30 days before departure.

• Ideal length: 15 days (compact) | 18–21 days (relaxed pace with beach extension)

• Best time: November–April (cool & dry across all three countries)

• Shoulder seasons: May & October (fewer crowds, occasional rain)

(Extendable to 21 days with Chiang Mai or Koh Samui)

Days 1–3: Siem Reap – The Khmer Empire (Cambodia)

• Sunrise at Angkor Wat – the world’s largest religious monument

• Explore Bayon’s smiling faces & jungle-covered Ta Prohm

• Village visits, ox-cart ride, and blessing by Buddhist monks

• Evening Apsara dance performance with dinner → Perfectly paced Cambodia Tours by Legend Travel Group

Days 4–6: Luang Prabang – Spiritual Heart of Laos

• Morning alms-giving ceremony with 300 monks

• Cruise the Mekong to Pak Ou Caves filled with thousands of Buddha statues

• Swim in turquoise pools at Kuang Si Waterfalls

• Sunset from Mount Phousi overlooking the UNESCO old town → Signature Laos Tours showcasing serene beauty

Days 7–9: Vang Vieng & Vientiane

• Float down the Nam Song River in an inner tube

• Explore dramatic limestone karsts and hidden caves

• Visit Vientiane’s golden Pha That Luang and quirky Buddha Park → Adventurous yet comfortable Laos Travel experiences

Days 10–18: Bangkok & Thai Islands

• Bangkok’s Grand Palace, Emerald Buddha & Wat Arun

• Day trip to historic Ayutthaya (UNESCO)

• Domestic flight to Phuket or Krabi

• Island-hopping: Phi Phi, James Bond Island, Hong Island by speedboat

• Snorkeling, kayaking, and beach relaxation → The ultimate finale with our bestselling Thailand Tours

• Private airport transfers & domestic flights included

• Hand-picked 4-star & boutique hotels

• Expert English-speaking local guides in each country

• Small groups (max 12) or fully private options

• Only 10% deposit — final payment 30 days before departure

• 24/7 concierge support from our Southeast Asia team

• Sustainable travel: carbon-offset flights & community projects

• 15-day compact version (skip Vang Vieng)

• 21-day grand journey (+ Chiang Mai & elephant sanctuary)

• Luxury upgrade: 5-star Anantara & Aman resorts

• Family-friendly pace with kid-focused activities

• 15 days: from $2,680

• 18 days (most popular): from $3,380

• 21 days luxury: from $5,480
  Includes all accommodation, transfers, domestic flights, guides, entries & most meals.

• Secure online booking at https://www.legendtravelgroup.com

• Only 10% deposit required today

• Free date changes up to 45 days before departure

• Full refund if plans change (conditions apply)

Let Legend Travel Group turn this best Cambodia–Laos–Thailand itinerary into your reality.
Visit https://www.legendtravelgroup.com or contact our team today — only 10% deposit secures your spot!

By Legend Travel Group – Crafting Unforgettable Southeast Asia Journeys Since 2008