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

Guided Group Tours, Vacation Packages, or Planned Itineraries

Thailand

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 guided organized tours, holiday packages, and all-inclusive vacation packages 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. Great for food, nightlife, resorts, and scuba diving & snorkeling, it's easy to see why Thailand is such a fun destination. So, check out our curated list of tours below to get started!


The Top 3 Tours:

  • 21 Days, $3990.00

  • 21 Days, $2318.82

  • 21 Days, $2350.00
Thailand
The Best 3-Week Tours through Thailand

Including guided tours, organized tours, holiday packages, all-inclusive vacations, and guided itineraries.

All tour prices are listed 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. While we do our best to evaluate all tours to maintain accuracy, always confirm the details directly with TourRadar or the tour company before booking. The information provided on this website is sourced directly from TourRadar and may change at any time.

Organized by Asia Focus Travel 21 Days Bangkok to Phuket 12 Destinations
  • High Quality: guest ratings are higher than average.
  • In Depth: you'll spend a longer amount of time in each place.
  • Great for Culture Lovers

starstarstarstarstar 5.0 rating

Age Range: 2 to 80
Maximum Group Size: 20
Price per Day: $190

This tour visits Bangkok, Kanchanaburi, Ayutthaya, Uthai Thani, Sukhothai, Lampang, Chiang Rai, Chiang Saen, Chiang Dao, Chiang Mai, Phuket, and Ko Phi Phi.

  • In-depth Cultural
  • Family
  • Fully Guided

By Asia Focus Travel
Asia Focus Travel is a smaller tour company that offers trips to 5 countries, including Vietnam, Cambodia, Laos, and Thailand. Budget travelers will appreciate the relative affordability of the company's offerings.



$3,990
on TourRadar

Organized by Backpacking Tours 21 Days Start/End in Bangkok 9 Destinations
  • High Quality: guest ratings are higher than average.
  • In Depth: you'll spend a longer amount of time in each place.

starstarstarstarstar 5.0 rating

Age Range: 18 to 45
Maximum Group Size: 25
Price per Day: $110

This tour visits Bangkok, Ayutthaya, Singburi, Erawan National Park, Kanchanaburi, Amphawa, Khao Sok National Park, Krabi, and Ko Phi Phi.

  • Fully Guided

By Backpacking Tours



$2,319
on TourRadar

Organized by TruTravels 21 Days Bangkok to Ko Pha Ngan 9 Destinations
  • On Sale: 20% Off
  • Great Value: the daily price is lower than average for tours lasting 3 weeks in Thailand.
  • In Depth: you'll spend a longer amount of time in each place.
  • Great for Nature Lovers

starstarstarstarstar 4.6 rating

Age Range: 18 to 39
Maximum Group Size: 20
Price per Day: $90

This tour visits Bangkok, Taling Chan, Kanchanaburi, Erawan National Park, Ayutthaya, Chiang Mai, Pai, Khao Sok National Park, and Ko Pha Ngan.

  • Beach
  • Fully Guided

By TruTravels
TruTravels is a large international travel company offering trips all over the world. Budget travelers will appreciate the relative affordability of the company's offerings.



$2,350 $1,880
on TourRadar

Organized by Legend Travel Group 20 Days Hanoi to Phuket 20 Destinations
  • On Sale: 50% Off
  • High Quality: guest ratings are higher than average.
  • Personal: offers a smaller group size.
  • Efficient: you'll cover a variety of destinations swiftly.

Great for:
  • Culture Lovers
  • History Enthusiasts

starstarstarstarstar 5.0 rating

Age Range: 1 to 99
Maximum Group Size: 12
Price per Day: $159

This tour visits Hanoi, Halong Bay, Da Nang, Hoi An, My Son Sanctuary, Hue, Ho Chi Minh City, Cu Chi, My Tho, Ben Tre, Mekong Delta, Bangkok, Damnoen Saduak, Chiang Mai, Wat Phra That Doi Suthep, Mae Taeng, Chiang Rai, Golden Triangle Park, Phuket, and Ko Phi Phi.

  • Sightseeing
  • In-depth Cultural
  • Historical
  • Fully Guided

By Legend Travel Group
Legend Travel Group offers local cultural tours through Vietnam, Cambodia, Laos, Thailand, and others. The small group sizes, often less than 12, make for a very personal experience. Budget travelers will appreciate the relative affordability of the company's offerings.



$5,160 $2,580
on TourRadar

Organized by G Adventures 21 Days Bangkok to Ho Chi Minh City 13 Destinations
  • On Sale: 25% Off
  • Great Value: the daily price is lower than average for tours lasting 3 weeks in Thailand.
  • High Quality: guest ratings are higher than average.
  • Great for History Enthusiasts

starstarstarstarstar 5.0 rating

Age Range: 18 to 39
Maximum Group Size: 18
Price per Day: $80

This tour visits Bangkok, Kanchanaburi, Sukhothai, Chiang Mai, Hanoi, Vinh, Phong Nha-Kẻ Bàng National Park, Hue, Hoi An, Quy Nhon, Nha Trang, Mui Ne, and Ho Chi Minh City.

  • Historical
  • Fully Guided

By G Adventures
G Adventures is a popular travel company that specializes in small-group adventure tours worldwide. They focus on sustainable tourism, immersive cultural experiences, and off-the-beaten-path destinations.



$2,229 $1,672
on TourRadar

Organized by Realistic Asia 20 Days Hanoi to Phuket 10 Destinations
  • On Sale: 55% Off
  • High Quality: guest ratings are higher than average.
  • In Depth: you'll spend a longer amount of time in each place.

starstarstarstarstar 5.0 rating

Age Range: 1 to 90
Maximum Group Size: 15
Price per Day: $163

This tour visits Hanoi, Halong Bay, Hue, Hoi An, Ho Chi Minh City, Cu Chi, Mekong Delta, Bangkok, Chiang Mai, and Phuket.

  • Family
  • Partially Guided

By Realistic Asia
Realistic Asia is a smaller tour company that offers trips to 6 countries, including Vietnam, Cambodia, Thailand, and Laos. The small group sizes, often less than 15, make for a very personal experience. Budget travelers will appreciate the relative affordability of the company's offerings. The company's adventures often highlight activities such as snorkelling, diving, parasailing, and jetskiing.



$5,589 $2,515
on TourRadar

Organized by Bravo Indochina Tours 21 Days Hanoi to Phuket 10 Destinations
  • High Quality: guest ratings are higher than average.
  • In Depth: you'll spend a longer amount of time in each place.

starstarstarstarstar 4.9 rating

Age Range: 1 to 99
Maximum Group Size: 15
Price per Day: $109

This tour visits Hanoi, Halong Bay, Hoi An, Ho Chi Minh City, Mekong Delta, Chau Doc, Phnom Penh, Siem Reap, Bangkok, and Phuket.

  • Sightseeing
  • Family
  • Fully Guided

By Bravo Indochina Tours
Bravo Indochina Tours is a smaller tour company that offers trips to 8 countries, including Vietnam, Cambodia, Thailand, and Laos. Budget travelers will appreciate the relative affordability of the company's offerings.



$2,279
on TourRadar

Organized by G Adventures 20 Days Bangkok to Hanoi 12 Destinations
  • On Sale: 25% Off
  • Great Value: the daily price is lower than average for tours lasting 3 weeks in Thailand.

Great for:
  • Adventure Travelers
  • Culture Lovers

starstarstarstarstar 4.6 rating

Age Range: 18 to 39
Maximum Group Size: 18
Price per Day: $77

This tour visits Bangkok, Siem Reap, Phnom Penh, Koh Rong Sanloem, Ho Chi Minh City, Nha Trang, Da Nang, Hoi An, Hue, Phong Nha-Kẻ Bàng National Park, Hanoi, and Halong Bay.

  • In-depth Cultural
  • Fully Guided

By G Adventures
G Adventures is a popular travel company that specializes in small-group adventure tours worldwide. They focus on sustainable tourism, immersive cultural experiences, and off-the-beaten-path destinations.



$2,049 $1,537
on TourRadar

Organized by G Adventures 21 Days Bangkok to Singapore 10 Destinations
  • On Sale: 25% Off
  • Great Value: the daily price is lower than average for tours lasting 3 weeks in Thailand.
  • In Depth: you'll spend a longer amount of time in each place.

Great for:
  • Adventure Travelers
  • Culture Lovers

starstarstarstarstar 4.7 rating

Age Range: 18 to 39
Maximum Group Size: 18
Price per Day: $82

This tour visits Bangkok, Chiang Mai, Surat Thani, Khao Sok National Park, Koh Samui, Penang Island, Cameron Highlands, Kuala Lumpur, Malacca, and Singapore.

  • In-depth Cultural
  • Fully Guided

By G Adventures
G Adventures is a popular travel company that specializes in small-group adventure tours worldwide. They focus on sustainable tourism, immersive cultural experiences, and off-the-beaten-path destinations.



$2,299 $1,724
on TourRadar

Organized by Legend Travel Group 21 Days Bangkok to Ho Chi Minh City 21 Destinations
  • On Sale: 50% Off
  • Personal: offers a smaller group size.
  • Efficient: you'll cover a variety of destinations swiftly.

Great for:
  • Adventure Travelers
  • Culture Lovers

starstarstarstarstar 4.8 rating

Age Range: 1 to 99
Maximum Group Size: 12
Price per Day: $146

  • In-depth Cultural
  • Family
  • Fully Guided

By Legend Travel Group
Legend Travel Group offers local cultural tours through Vietnam, Cambodia, Laos, Thailand, and others. The small group sizes, often less than 12, make for a very personal experience. Budget travelers will appreciate the relative affordability of the company's offerings.



$4,348 $2,174
on TourRadar

Why does Thailand appeal to travelers?

Thailand appeals to travelers with its rich history, vibrant cities, scenic landscapes, and exciting culture. Chiang Mai, Bangkok, and Chiang Rai offer plenty of amazing museums and sights to explore. Koh Phi Phi is known for its stunningly beautiful beaches, world-class snorkeling and diving, and wild booze cruises. Chiang Mai, Koh Phi Phi, and Koh Phangan are world-renowned for hiking, with gorgeous trails and stunning natural landscapes. Also, don't miss the scuba diving in Koh Phi Phi, Koh Tao, and Koh Lipe. Chiang Mai, Bangkok, and Chiang Rai are foodie destinations with fantastic cuisine and world-class restaurants. Koh Phi Phi, Koh Phangan, and Phuket are popular with beach lovers. Koh Phi Phi, Phuket, and Koh Samui have beautiful high-end resorts that draw visitors from around the world. These longer tours to the region offer an amazing opportunity to dive into the best sights in a convenient way at an affordable price. You'll travel stress-free while creating amazing memories.

Thailand


How much do 21-day tours to Thailand cost?

The average daily price of 3-Week Tours in Thailand is $116 per day. Prices can vary widely due to the included amenities, length of the trip, number of guests on the tour, and many other factors. If you want more information about prices, we have put together a complete analysis of the costs of 3-Week Tours in Thailand here.


We partner with TourRadar because they offer the world's largest selection of multi-day organized tours, offering seamless travel experiences while supporting local businesses. It's the perfect way to explore new destinations with ease and confidence.




$116
Average Price Per Day
14
Tours Analyzed
4.8
Average Rating
11
Tour Companies
19
Average Group Size

Which Tour Companies Offer 3-Week Tours?

A number of fantastic tour companies offer tours lasting 3 weeks in Thailand. These are a few of the best, because they offer the highest rated service, provide the best overall quality, and have the most five-star guest reviews to prove it.

G Adventures

G Adventures logo G Adventures is a large international travel company offering tours all over the world. Some of their most popular destinations include Thailand, Peru, South Africa, and Vietnam. Many of their tours are priced in the mid-range category. The company's adventures often highlight activities such as camping, island hopping, snorkelling, surfing, wine tasting, kayaking, cooking classes, water sports, jungle surfing, and canyoning.

See All Tours from G Adventures

Legend Travel Group

Legend Travel Group offers local cultural tours through Vietnam, Cambodia, Laos, Thailand, and others. Most participants are adults and the tours range in length from 3 days to 4 weeks. The small group sizes, often less than 12, make for a very personal experience. There are opportunities to customize some tours to specifically meet your needs. The company appeals to travelers of all ages, with many tours focusing on families with children. Budget travelers will appreciate the relative affordability of the company's offerings.

See All Tours from Legend Travel Group

Asia Focus Travel

Asia Focus Travel is a smaller tour company that offers tours to 5 countries, including Vietnam, Cambodia, Laos, and Thailand. The company appeals to travelers of all ages, with many tours focusing on families with children. Budget travelers will appreciate the relative affordability of the company's offerings.

See All Tours from Asia Focus Travel

Bravo Indochina Tours

Bravo Indochina Tours is a smaller tour company that offers tours to 8 countries, including Vietnam, Cambodia, Thailand, and Laos. There are opportunities to customize some tours to specifically meet your needs. The company appeals to travelers of all ages, with many tours focusing on families with children. Budget travelers will appreciate the relative affordability of the company's offerings.

See All Tours from Bravo Indochina Tours


3-Week Destinations in Thailand

Wondering where 3-week tours visit in Thailand? With a variety of stops and destinations along the way, there's something for everyone.

Bangkok

Bangkok is the colorful capital city of Thailand. It is filled with temples and religious sights as well as shopping centers and markets. There is a network of canals and the Chao Phraya River is filled with boats. The city has many high end hotels as well as backpacker meccas and everything in between.

Chiang Mai

Chiang Mai is a cultural city that's located in the mountainous part of northern Thailand. The city has many temples, a famous night market, and a unique cuisine that is among the best in the country. Many visitors book treks into the countryside from Chiang Mai and the city has become a popular destination for digital nomads.

Kanchanaburi

Kanchanaburi is a town that is located on the River Kwai. It is the location of the notorious Death Railway Bridge, which was made famous by the movie "Bridge on the River Kwai". The line crosses the river, and visitors may walk or take a train across. There are also museums and cemeteries that allow visitors to learn and reflect on the dark past.

Phuket

Phuket is one of the most famous islands in Thailand. It's popular with tourists who come to party, swim, and experience the sights and culture. The capital of the island is Phuket City, but most visitors stay at one of the many resorts by the beaches around the island.

More

Other popular destinations for 3-week tours through Thailand include Khao Sok National Park, Surat Thani, Damnoen Saduak, Uthai Thani, and Singburi.


Which is cheaper?

Can you save money by traveling independently instead of joining guided tours lasting 3 weeks? It's not a simple yes or no. Tours usually include key expenses such as lodging, transportation, meals, entry fees, guides, and activities, which you'd need to manage and pay for individually on your own trip. To figure out the difference, compare the total tour price with the cost of making your own arrangements. Depending on your choices—like opting for budget hotels or premium dining—the cost of a tour might be higher or lower. Be sure to examine the tour inclusions carefully when comparing.

Also, before booking a tour, make sure you know exactly what is included as tour companies sometimes change their itineraries or included amenities to keep them updated with seasonal changes and customer interests.

More Tour Options

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 4-Week (1-Month) 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 Water Sports Tour Packages in Thailand, The Best Sightseeing Tours in Thailand, The Best Cultural Tours in Thailand, The Best Food and Culinary Tours in Thailand, The Best Music Tours in Thailand, The Tours for Animal Lovers in Thailand, The Best Volunteering Tours in Thailand, The Best Romantic Tours for Couples in Thailand, The Best Safaris in Thailand, The Best Nightlife Tours in Thailand, The Best Religious Tours in Thailand, The Best Yoga Tours and Retreats in Thailand, The Best Walking Tours in Thailand, The Best Honeymoon Tours in Thailand, The Best Tours Under $1000 in Thailand, The Best Luxury Tours to 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 Bangkok, The Best 3-Day Tours from Phuket, 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 One-Week (7-Day) Tours from Chiang Rai, The Best 10-Day Tours from Bangkok, The Best 10-Day Tours from Chiang Rai, The Best 10-Day Tours from Phuket, The Best 2-Week Tours from Bangkok, or The Best 2-Week Tours from Chiang Rai for more package tour options.

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