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The Best 3-Week (21-Day) Tours in Thailand

A Longtail Boat A Longtail Boat

Looking for the perfect 21-day getaway to Thailand with a fantastic guided tour? We've carefully analyzed all of the possible three-week tour options to Thailand based on price, comfort, service, guest ratings, cuisine, and activities in order to find the absolute best multi-day organized tour options available. Whether you're seeking a relaxing getaway or an action-packed expedition, these all-inclusive guided tours offer the perfect length to indulge in the best of both worlds. From captivating excursions to tantalizing cuisine, get ready to experience the ultimate 3-week escape that will leave you with unforgettable memories and a renewed sense of wanderlust. So, check out our curated list of tours below to get started!


The Top 3:

  • 21 Days, $2479.00

  • 20 Days, $1699.00

  • 21 Days, $2049.00

Which 21-day tour options are available in Thailand?

Thailand

Here are the important factors:

  • 11 trip options analyzed
  • $104 average price per day (USD)
  • 20 to 21 days in length
  • 4.86 of 5 average rating
  • 19 people or less on average

You'll be surprised at the array of tours lasting 3 weeks in Thailand, as there is something for everyone. It's no wonder that visitors can't get enough of these tours, boasting an impressive average guest rating of 4.86 out of 5 stars. Picture yourself joining a group of like-minded adventurers, with an average maximum size of 19 people, ensuring a fantastic blend of social and personalized experiences. The average tour length spans 21 days, with tours ranging from 20 to 21 days long. Regarding physical activity options, you'll find tours marked as easy and moderate, with the most being easy. With our thorough analysis of 11 tours lasting 3 weeks, we've found the best. So rest assured that Thailand has something to captivate every kind of traveler.

(All tour prices are in US Dollars before taxes, and come from a base price that is reported by TourRadar. Peak season prices can vary significantly, particularly in destinations where seasonal travel fluctuates dramatically.)

So, let's get to it and see...

The 10 Best 3-Week Tours in Thailand
  • High Quality: guest ratings are higher than average.
by Bravo Indochina Tours



21 Days Hanoi to Phuket 10 Destinations through Vietnam, Cambodia, Thailand 15 People at Most Ages 1 to 99 Guest Rating: 4.9 out of 5 stars

This fantastic voyage has a rating of 4.9 out of 5 stars, visiting Vietnam, Cambodia, and Thailand. Discover a journey that spans 10 destinations, with notable stops in Ho Chi Minh City, Mekong Delta, Chau Doc, and Phnom Penh. Your journey will begin in Hanoi and end in Phuket. Lasting 21 days, the maximum group size is 15 people, and it's good for travelers of all ages. Organized by Bravo Indochina Tours, this is a great deal because it's only $118 per day.

  • Sightseeing
  • Family
$2,479
TourRadar
  • On Sale: 35% Off
  • Great Value: the daily price is lower than average for tours lasting 3 weeks.
by G Adventures



20 Days Bangkok to Hanoi 12 Destinations through Thailand, Cambodia, Vietnam 18 People at Most Ages 18 to 39 Guest Rating: 4.6 out of 5 stars

With a stellar 4.6 out of 5 rating, this extraordinary voyage, visiting Thailand, Cambodia, and Vietnam, is the perfect choice. This trip takes you on an adventure to 12 destinations, including Hanoi, Siem Reap, Phnom Penh, and Koh Rong Sanloem. Begin your trip in Bangkok and complete it with a memorable finale in Hanoi. Spanning across 20 days, the voyage accommodates 18 individuals, and is suitable for guests from 18 to 39 years old. Offered by G Adventures, this remarkable voyage is priced at just $55 per day. It's also on sale right now! Don't miss out on this incredible experience.

  • In-depth Cultural
$1,699 $1,104
TourRadar
  • Great Value: the daily price is lower than average for tours lasting 3 weeks.
  • High Quality: guest ratings are higher than average.
by G Adventures



21 Days Bangkok to Ho Chi Minh City 13 Destinations through Thailand, Vietnam 18 People at Most Ages 18 to 39 Guest Rating: 5.0 out of 5 stars

This exceptional trip offering by G Adventures has received a 5 out of 5 rating. On this 21-day voyage, visiting Thailand and Vietnam, you can unwind while also making new memories. With 13 destinations to explore, you'll get the chance to see Nha Trang, Mui Ne, Kanchanaburi, and Sukhothai, and more. Your journey starts off in Bangkok and finishes in Ho Chi Minh City. With a group size of 18 people, it's suitable for guests from 18 to 39 years old. This remarkable trip is priced at an unbeatable $68 per day.

  • Historical
$1,434
TourRadar
  • On Sale: 20% Off
  • Great Value: the daily price is lower than average for tours lasting 3 weeks.
by G Adventures



21 Days Bangkok to Singapore 10 Destinations through Thailand, Malaysia, Singapore 18 People at Most Ages 18 to 39 Guest Rating: 4.7 out of 5 stars

Check out this journey that has received rave reviews, earning a stellar 4.7 out of 5 rating, visiting Thailand, Malaysia, and Singapore. Along the way, this journey encompasses 10 destinations, including Cameron Highlands, Kuala Lumpur, Malacca, and Chiang Mai. Your journey will begin in Bangkok and end in Singapore. Spanning across 21 unforgettable days, this voyage offers an intimate group experience with 18 participants, and it's great for guests from 18 to 39 years old. Brought to you by the renowned G Adventures, this exceptional opportunity is priced at an incredible $82 per day - an unbeatable value. Act fast to take advantage of the current sale.

  • In-depth Cultural
$2,149 $1,719
TourRadar
  • On Sale: 50% Off
by Legend Travel Group



21 Days Bangkok to Ho Chi Minh City 21 Destinations through Thailand, Laos, Vietnam 12 People at Most Ages 4 to 99 Guest Rating: 4.7 out of 5 stars

This 21-day voyage, visiting Thailand, Laos, and Vietnam, is ideal for guests from 4 and up. And priced at only $146 per day, it's a great value, too. And since the priority is on local culture and family-friendly activities, this tour is a great choice. This itinerary covers 21 captivating destinations, with stops in Mae Taeng, Chiang Rai, Golden Triangle Park, and Huay Xai, among others. Begin your trip in Bangkok and complete it with a memorable finale in Ho Chi Minh City. It's offered by Legend Travel Group, a very popular company with rave reviews and knowledgeable guides. Don't miss out on this limited-time sale.

  • In-depth Cultural
  • Family
$4,348 $2,174
TourRadar
  • On Sale: 50% Off
  • High Quality: guest ratings are higher than average.
by Legend Travel Group



20 Days Hanoi to Phuket 20 Destinations through Vietnam, Thailand 12 People at Most Ages 4 to 99 Guest Rating: 5.0 out of 5 stars

Priced at just $159 per day, this terrific 20-day trip, visiting Vietnam and Thailand, is ideal for guests from 4 and up. Immerse yourself in a travel experience that includes 20 destinations, featuring Ho Chi Minh City, Cu Chi, My Tho, and Ben Tre. Your journey starts off in Hanoi and finishes in Phuket. Organized by the reputable Legend Travel Group, this is one of the best tours on this list. It's also on sale right now!

  • In-depth Cultural
  • Boat
  • Family
$5,160 $2,580
TourRadar
  • On Sale: 15% Off
  • High Quality: guest ratings are higher than average.
by Contiki



21 Days Bangkok to Singapore 13 Destinations through Thailand, Malaysia, Singapore 34 People at Most Ages 18 to 35 Guest Rating: 5.0 out of 5 stars

Check out this incredible journey that has received a 5 out of 5 rating from previous guests, visiting Thailand, Malaysia, and Singapore. With a duration of 21 days, this journey ensures an intimate group size of 34 people, and is good for guests from 18 to 35 years old. Uncover the beauty of 13 destinations on this itinerary, with highlights such as Chiang Mai, Surat Thani, Khao Sok National Park, and Krabi. Your journey will begin in Bangkok and end in Singapore. This fantastic option, organized by Contiki, presents an unbeatable value at just $165 per day. Take advantage of the current sale and secure your spot today!

  • Historical
$3,770 $3,205
TourRadar
  • On Sale: 60% Off
  • High Quality: guest ratings are higher than average.
by Realistic Asia



20 Days Hanoi to Phuket 10 Destinations through Vietnam, Thailand 15 People at Most Ages 1 to 90 Guest Rating: 5.0 out of 5 stars

Spanning over 20 days, this trip, visiting Vietnam and Thailand, has a maximum size of 15 individuals. Welcoming guests from 1 to 90 years old, it is organized by Realistic Asia, a very popular company with plenty of great reviews. Traverse through 10 enchanting destinations, with Hue, Hoi An, Ho Chi Minh City, and Cu Chi among the must-see stops along the route. Begin your trip in Hanoi and complete it with a memorable finale in Phuket. Available at an unbeatable price of only $139 per day, this option also has a rating of 5 out of 5 stars from previous guests. Act fast to take advantage of the current sale.

  • Family
$5,251 $2,100
TourRadar
  • On Sale: 30% Off
  • Great Value: the daily price is lower than average for tours lasting 3 weeks.
  • High Quality: guest ratings are higher than average.
by Backpacking Tours



21 Days Start/End in Bangkok 9 Destinations 25 People at Most Ages 18 to 45 Guest Rating: 5.0 out of 5 stars

Here's your chance to take off on an exceptional journey that has garnered a 5 out of 5 rating. With a duration of 21 days, this jouney will have 25 participants, and it warmly welcomes guests from 18 to 45 years old. Expertly organized by Backpacking Tours, this amazing trip is an incredible value at just $81 per day.

$2,428 $1,700
TourRadar
  • Great Value: the daily price is lower than average for tours lasting 3 weeks.
  • High Quality: guest ratings are higher than average.
by Bamba Travel



21 Days Bangkok to Singapore 11 Destinations through Thailand, Malaysia, Singapore 20 People at Most Ages 10 to 99 Guest Rating: 5.0 out of 5 stars

This memorable voyage, visiting Thailand, Malaysia, and Singapore, is offered by Bamba Travel which has received plenty of positive reviews. The trip itself has a guest rating of 5 out of 5 stars, and is priced affordably at $50 per day. Experience a trip that takes you to 11 remarkable destinations, including Koh Tao, Ko Pha Ngan, Phuket, and Ko Phi Phi. Your journey will begin in Bangkok and end in Singapore. The maximum group size is 20 people, welcoming guests from 10 and up.

  • Family
$1,056
TourRadar

See also The Best Family-Friendly Tours to Thailand, The Best Wildlife Tours to Thailand, The Best Hiking & Trekking Tours in Thailand, The Best Historical Tours in Thailand, The Best 10-Day Tours in Thailand, The Best One Week (7-Day) Tours in Thailand, The Best 3-Day Tours in Thailand, The Best 2-Week Tours in Thailand, The Best Extended Trip Tours in Thailand, One Month or Longer, The Best River Cruises in Thailand, The Best Bicycle Tours in Thailand, Tours for Outdoor and Nature Lovers in Thailand, The Best Christmas & New Years Tours in Thailand, The Best Coach Bus Tours in Thailand, The Best Adventure Tours to Thailand, The Best Eco Tours in Thailand, The Best Thrill-Seeking Tours in Thailand, The Best Sightseeing Tours in Thailand, The Best Cultural Tours in Thailand, The Best Music Tours in Thailand, The Tours for Animal Lovers in Thailand, The Best Romantic Tours for Couples in Thailand, The Best Safaris in Thailand, The Best Budget Safaris in Thailand, The Best Nightlife Tours in Thailand, The Best Yoga Tours and Retreats in Thailand, The Best Honeymoon Tours in Thailand, The Best Tours Under $1000 in Thailand, The Best Budget Tours to Thailand, The Best Tours for Seniors to Thailand, The Best Contiki Tours to Thailand, or The Best G Adventures Tours to Thailand for more tour ideas. With so many options, there's a guided tour or vacation package for every type of traveler.

Also, if you're departing from a specific destination, see The Best 3-Day Tours from Phuket, The Best 3-Day Tours from Bangkok, The Best 3-Day Tours from Chiang Mai, The Best One-Week (7-Day) Tours from Bangkok, The Best One-Week (7-Day) Tours from Phuket, The Best One-Week (7-Day) Tours from Chiang Mai, The Best 10-Day Tours from Bangkok, The Best 2-Week Tours from Bangkok, or The Best 2-Week Tours from Chiang Rai for more package tour options.

How much do 21-day tours to Thailand cost?

Average Daily Price 3-Week Tours
$104

Visitors will find a large range of terrific options for tours lasting 3 weeks when planning a visit to Thailand. The price of these specific trips can vary according to length, destinations, and travel style. The average price of tours lasting 3 weeks in Thailand based on data from 11 options is an affordable $104 per day. If you're interested in more information about tours here, see our guide to tour prices in Thailand.

And for more information on Thailand, see Thailand Travel Costs and Thailand Hotel Costs.


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