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3 Weeks in Southeast Asia: Top Itineraries for 2024/2025

By Ruby ZhaoUpdated Dec. 4, 2023

3 weeks is a good length for a Southeast Asia trip, during which you can have an in-depth feel and not be in a rush. We present our most popular tours according to customers' choices over recent years. You can treat them as inspiration for your private travel and tailor them according to your requirements.

Other durations: 10 days, 12 days, 13 days, 14 days, 15 days, 17 days, 18 days, 19 days, 4 weeks.

15-Day thailand combodia vietnam tourtour map

3-Week Best of Thailand, Cambodia, and Vietnam Tour for Couples

Romantic Encounters and Immersive Experiences
Private tour from: US$5,629
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20-Day Vietnam, Thailand, Cambodia, and Bali Tour for Couplestour map

20-Day Vietnam, Thailand, Cambodia, and Bali Tour

Unveil Southeast Asia’s Enchanting Wonders with Distinct Culture
Private tour from: US$5,289
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15-Day thailand combodia vietnam tourtour map

21-Day Thailand and Vietnam Adventure Tour

Delve into the Ancient History and Colorful Culture of Southeast Asia
Private tour from: US$5,369
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21-Day China, Laos, and Thailand Discoverytour map

21-Day China, Laos, and Thailand Discovery

An Off-the-Beaten Track Trip to Asia
Private tour from: US$5,259
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3-Week China and Vietnam Adventure Tour tour map

3-Week China and Vietnam Adventure Tour

A Leisurely and In-depth Trip to Asia
Private tour from: US$5,099
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21-Day Vietnam, Cambodia, Thailand and Singapore Tour

21-Day Vietnam, Cambodia, Thailand and Singapore Tour

A Trip to Unveil a Tapestry of Cultures and Wonders of Southeast Asia
Private tour from: US$5,250
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21-Day Asian Odyssey: Hong Kong, Vietnam, Cambodia, and Thailand Tour

21-Day Hong Kong, Vietnam, Cambodia, and Thailand Tour

Discover Cultural Marvels and Timeless Heritage
Private tour from: US$5,250
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23-Day Vietnam, Mekong River Cruise, and Cambodia Tour: A Southeast Asian Odyssey

23-Day Vietnam, Mekong River Cruise, and Cambodia Tour

A Southeast Asian Odyssey
Private tour from: US$5,750
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20-Day Siem Reap, Thailand, Malaysia, Singapore, Bali, Phillippine and Taiwan Tour

20-Day Siem Reap, Thailand, Malaysia, Singapore, Bali, Phillippine and Taiwan Tour

A Trip to Discover the Culture and Landscapes of Southeast Asia
Private tour from: US$5, 250
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21-Day Vietnam, Cambodia, Thailand and Singapore Tour

21-Day Vietnam, Cambodia, Thailand and Singapore Tour

Discover Southeast Asian Adventure
Private tour from: US$5,250
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Discover real reviews of Highlights Travel Family's best-rated service across trusted platforms.

Trip Advisor certificate of excellence 2023 tour rating

Why Asia Highlights (10,000+ reviews & 98.8% 5-star rating)

  • Save Your Time:
  • Less research, more enjoyment!
  • Real-time 1V1 expert planning
  • Maximize Your Flexibility:
  • Personal local guide and ride
  • Explore at your own pace
  • Celebrate Your Journeys:
  • Specially-crafted family adventures
  • Celebrate milestones with style!

Get Inspired with Some Popular Itineraries

At Asia Highlights, we create your kind of journey — your dates, your destinations, at your pace. You can have any trip tailor made for your travel.

More Travel Ideas and Inspiration

Start planning your tailor-made tour with 1-1 help from our travel advisors. Create My Trip
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Why Asia Highlights

Customize Your Tour

Customize Your Tour

  • Travel Advisors Rooted in Asia
  • Instant Response, No More Waits!
  • Direct Connections, Supreme Values
Maximize Your Flexibility

Maximize Your Flexibility

  • Your own personal guide and ride.
  • Explore at your own pace.
  • Unparalleled flexibility, impossible on a group tour.
Ensure Your Satisfactory

Ensure Your Satisfactory

  • The Top 20% nationwide guides at your service.
  • 20% more space on your group's transportation.
  • 24/7 emergency support.
Celebrate Your Journey

Celebrate Your Journey

  • Family adventures
  • Celebrate milestones with style!
  • Photographer service for special moments

Where Can We Take You Today?

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China Highlights International
Travel Service Co., LTD
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Address: Building 6, Chuangyi Business Park, 70 Qilidian Road, Guilin, Guangxi, 541004, China