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 tour](https://data.asiahighlights.com/grey.gif)
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3-Week Best of Thailand, Cambodia, and Vietnam Tour for Couples
![20-Day Vietnam, Thailand, Cambodia, and Bali Tour for Couples](https://data.asiahighlights.com/grey.gif)
![tour map](https://data.asiahighlights.com/grey.gif)
20-Day Vietnam, Thailand, Cambodia, and Bali Tour
![15-Day thailand combodia vietnam tour](https://data.asiahighlights.com/grey.gif)
![tour map](https://data.asiahighlights.com/grey.gif)
21-Day Thailand and Vietnam Adventure Tour
![21-Day China, Laos, and Thailand Discovery](https://data.asiahighlights.com/grey.gif)
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21-Day China, Laos, and Thailand Discovery
![3-Week China and Vietnam Adventure Tour](https://data.asiahighlights.com/grey.gif)
![tour map](https://data.asiahighlights.com/grey.gif)
3-Week China and Vietnam Adventure Tour
![21-Day Vietnam, Cambodia, Thailand and Singapore Tour](https://data.asiahighlights.com/grey.gif)
21-Day Vietnam, Cambodia, Thailand and Singapore Tour
![21-Day Asian Odyssey: Hong Kong, Vietnam, Cambodia, and Thailand Tour](https://data.asiahighlights.com/grey.gif)
21-Day Hong Kong, Vietnam, Cambodia, and Thailand Tour
![23-Day Vietnam, Mekong River Cruise, and Cambodia Tour: A Southeast Asian Odyssey](https://data.asiahighlights.com/grey.gif)
23-Day Vietnam, Mekong River Cruise, and Cambodia Tour
![20-Day Siem Reap, Thailand, Malaysia, Singapore, Bali, Phillippine and Taiwan Tour](https://data.asiahighlights.com/grey.gif)
20-Day Siem Reap, Thailand, Malaysia, Singapore, Bali, Phillippine and Taiwan Tour
![21-Day Vietnam, Cambodia, Thailand and Singapore Tour](https://data.asiahighlights.com/grey.gif)
21-Day Vietnam, Cambodia, Thailand and Singapore Tour
Discover real reviews of Highlights Travel Family's best-rated service across trusted platforms.
![Trip Advisor certificate of excellence 2024](https://data.asiahighlights.com/grey.gif)
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Tour to Vietnam Cambodia and Thailand
![]() Guide in Cambodia Mr Borin was excellent and he was so considerate that he even had fresh fruit for us. Made us feel special. A special shout out to him and his driver who made our trip memorable. More
Dee and Pal, Apr 2024
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Fantastic Southeast Asia Trip
![]() We had an excellent time in Vietnam, Cambodia, and Thailand on our trip organized by Asia Highlights. Without their excellent guides and itinerary we would not have been able to experience everything we had in less than 2 weeks. All of the guides and drivers were incredibly helpful and considerate of our needs. Thank you Borin (Cambodia), Mui (Bangkok), Lee (Bangkok), Tip (Pattaya), Abe and other staff for coordinating an awesome vacation for us!! More
Consumer, Apr 2024
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We loved our experience in Bangkok with…
![]() We loved our experience in Bangkok with our guide Ying. She made everything easy to understand and enjoyable. She guided us through crowded areas with ease and always provided a detailed description of the sights. She also took pictures for us and sent them at the end of every day. We had an unforgettable experience. We highly recommend Ying! You won’t be disappointed! More
Jennifer McMinn, Apr 2024
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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.