With the travel duration to Thailand around 18 days, there are many nice trip you can do, we have several sample itineraries from classic tours to trekking tours, cycling tours , beach holiday. You can find all here in the list of Thailand tours 18 days

Thailand to Luang Prabang via Huayxay border 18 Days
Thailand to Luang Prabang via Huayxay border 18 Days

Kanchanaburi - Sukhothai - Ayutthaya - Bangkok - Chiang Mai - Chiang Rai - Chiang Saen - Luang Prabang Private

From US$ 2,094 US$ 2,094
Transformative Culture along Mekong river in 18D17N
Transformative Culture along Mekong river in 18D17N

Ayutthaya - Bangkok - Chiang Mai - Krabi - Phnom Penh - Sai Gon - Can Tho - Chau Doc Private

From US$ 2,329 US$ 2,329
Splendid Leisure Journey in Vietnam & Thailand 17 Days 16 Nights
Splendid Leisure Journey in Vietnam & Thailand 17 Days 16 Nights

Bangkok - Chiang Mai - Krabi - Hanoi - Halong Bay - Sai Gon Private

Thailand Amazing 18 Days 17 Nights
Thailand Amazing 18 Days 17 Nights

Kanchanaburi - Ayutthaya - Bangkok - Chiang Mai - Chiang Rai - Koh Lanta Private

From US$ 1,474 US$ 1,474
Thailand Beauty 17 Days 16 Nights
Thailand Beauty 17 Days 16 Nights

Kanchanaburi - Bangkok - Chiang Mai - Chiang Rai - Chiang Saen - Phuket Private

From US$ 1,334 US$ 1,334
Symbol Exploration from Thailand-Singapore-Malaysia 17D16N
Symbol Exploration from Thailand-Singapore-Malaysia 17D16N

Ayutthaya - Bangkok - Chiang Mai - Chiang Rai - Ko Phi Phi - Kuala Lumpur - Singapore Private

Gastronomy in Thailand & Indochina 19D18N
Gastronomy in Thailand & Indochina 19D18N

Ayutthaya - Bangkok - Chiang Mai - Luang Prabang - Hanoi - Halong Bay - Hoi An - Can Tho Private

From US$ 1,814 US$ 1,814
Globetrotting Journey in Thailand & Siem Reap (19 Days)
Globetrotting Journey in Thailand & Siem Reap (19 Days)

Kanchanaburi - Bangkok - Chiang Mai - Chiang Rai - Krabi - Ko Phi Phi - Siem Reap Private

Trailblazing Expedition in Thailand and Laos in 18 days
Trailblazing Expedition in Thailand and Laos in 18 days

Sukhothai - Ayutthaya - Bangkok - Chiang Mai - Luang Prabang - Vang Vieng - Chiang Khong Private

Less Visited Thailand 17 Days 16 Nights
Less Visited Thailand 17 Days 16 Nights

Bangkok - Chiang Mai - Chiang Rai - Koh Lanta - Krabi - Khao Sok Private

From US$ 1,562 US$ 1,562
Serene Discovery in Luang Prabang and Thailand (19D18N)
Serene Discovery in Luang Prabang and Thailand (19D18N)

Chiang Mai - Chiang Rai - Phuket - Luang Prabang - Koh Lipe Private

Explore Cultural Mosaic in Thailand and Indochina 19D18N
Explore Cultural Mosaic in Thailand and Indochina 19D18N

Ayutthaya - Bangkok - Chiang Mai - Hanoi - Halong Bay - Siem Reap - Sai Gon Private

From US$ 1,915 US$ 1,915
Thailand Laos 18 Days
Thailand Laos 18 Days

Ayutthaya - Bangkok - Chiang Mai - Chiang Rai - Chiang Saen - Luang Prabang - Vang Vieng - Vientiane Private

From US$ 1,558 US$ 1,558

Thailand in 18 days

With around 18 days you have time to slow down: the old capitals (Ayutthaya, Sukhothai), Kanchanaburi and the River Kwai, the north around Chiang Mai and Chiang Rai, a real week on the beach, or an extension to Laos, Cambodia, Vietnam or Singapore and Malaysia.

Our tours of around 18 days

Tour Duration Main stops Price
Thailand Beauty 17 days Kanchanaburi, Chiang Mai, Chiang Rai, Chiang Saen, Phuket From US$ 1,334
Less Visited Thailand 17 days Chiang Rai, Chiang Mai, Khao Sok, Krabi, Koh Lanta From US$ 1,562
Thailand Amazing 18 days Kanchanaburi, Ayutthaya, Chiang Mai, Chiang Rai, Koh Lanta From US$ 1,474
Thailand to Luang Prabang via Huay Xai 18 days Sukhothai, Chiang Mai, Chiang Rai, Luang Prabang From US$ 2,094
Thailand & Laos 18 days Chiang Mai, Chiang Rai, Luang Prabang, Vang Vieng, Vientiane From US$ 1,558
Splendid Leisure Journey in Vietnam & Thailand 17 days Hanoi, Ha Long, Saigon, Bangkok, Chiang Mai, Krabi On request
Singapore, Malaysia & Thailand Highlights 17 days Singapore, Kuala Lumpur, Bangkok, Chiang Mai, Koh Phi Phi On request
Globetrotting in Thailand & Siem Reap 19 days Chiang Rai, Chiang Mai, Kanchanaburi, Krabi, Siem Reap On request
Serene Discovery in Luang Prabang and Thailand 19 days Luang Prabang, Chiang Mai, Chiang Rai, Phuket, Koh Lipe On request
Gastronomy in Thailand & Indochina 19 days Bangkok, Chiang Mai, Luang Prabang, Hanoi, Hoi An From US$ 1,814

How to choose

  • All of Thailand: Thailand Amazing or Thailand Beauty.
  • Fewer crowds: Less Visited Thailand.
  • Add Laos: the 18-day tours via Huay Xai and Luang Prabang, or Serene Discovery in Luang Prabang and Thailand, 19 days.
  • Add Vietnam or Singapore: the 17-day combined tours.
  • Add Cambodia: Globetrotting in Thailand & Siem Reap, 19 days.
  • Food lovers: Gastronomy in Thailand & Indochina, 19 days.

Frequently asked questions

What can I do in 18 days?

You can see Bangkok, Kanchanaburi, Ayutthaya, Sukhothai, Chiang Mai and Chiang Rai and still have 4–6 days on the beach. Alternatively, swap the beach for Laos or Vietnam.

Is it worth adding Laos?

Yes, especially if you visit the north: from Chiang Rai you cross the Mekong at Chiang Khong–Huay Xai and continue to Luang Prabang, a UNESCO-listed town.

When is the best time for a long trip?

November to February is dry and cooler across most of the country; March to May is very hot; June to October is the rainy season, with showers that are often short and fewer visitors.

Can the tours be customised?

Yes. You can add nights, swap a stop or change the hotel category. Guide language and inclusions are shown on each tour page.

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Tribes but not that....... Tribes but not that.......
Sandrine r
Sandrine r

We had chosen an excursion with a Francophone guide. Whose name is dom? And the driver's name was Tony. Both of them have been inc...

2025-11-20
An agency to recommend An agency to recommend
Myriam
Myriam

We had booked a tour followed by a few days of beach for rest. The Thai Unika agency managed this circuit very well, drivers and...

2025-03-13
So good we should go again! So good we should go again!
Jurny P
Jurny P

We had a ball in Bangkok. Phuong Ivy Ha took care of all our needs from transportation to flights. She really made this trip so aw...

2025-06-18
An unforgettable journey for my 40th birthday! An unforgettable journey for my 40th birthday!
Delphine P
Delphine P

I thank Lan CHU of Thai Unika for his patience in developing our 18-day tour. We come home with incredible memories thanks to you...

2025-11-13
Formidable Formidable
audrey G
audrey G

We are delighted and pleased by our family trip, accompanied by Thai Unika. The organization was top, the guide and driver were v...

2025-02-27
Complete trust and relaxation, faultless communicaiton Complete trust and relaxation, faultless communicaiton
Vesna M
Vesna M

Unika crafted an absolutely beautiful trip for us. Thailand is stunning, but as we had never been before, and didn’t know what to...

2024-12-31
An unforgettable 15-day trip An unforgettable 15-day trip
Adventure3932
Adventure3932

Beautiful trip. Thailand is a superb country that we were able to discover without worrying about the organization.Thai unika mana...

2024-12-18
18 days of travel to discover northern Thailand. 18 days of travel to discover northern Thailand.
mario c
mario c

Travel organized by Thai Unika in an excellent way. We spent 18 days from Bangkok to Chiang Mai, Chiang Rai, andLo Samet. Huyen fo...

2024-12-17
A truly... Unika holiday! A truly... Unika holiday!
Ilaria F
Ilaria F

Great experience, thanks to Chuc's competence and professionalism we were able to visit all the places we wanted to see with a wel...

2024-11-12
Agency highly recommended!! Agency highly recommended!!
Claudio S
Claudio S

Continuous and professional, reliable assistance with , from quote to final tour. Qualified and very helpful staff.

2024-11-07

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