Thailand Tours in September 2025
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10 best Thailand trips in September 2025
Compiled by
NadineThailand travel expert at TourRadar
- Thailand: Night Markets & Blue Waters
- Northern Thailand Adventure
- Highlights of Thailand
- Thailand Adventure: Bangkok, Chiang Mai & Street Food Crawls
- Bangkok and Ancient Capitals, Small Group Tour
- Thai Intro + Dive
- 9 Days Thailand Exploration
- Trails and Gems of Siam, Small Group Tour
- Treasures of Thailand 8 Days - Chiang Mai to South, Small Group Tour (English Only)
- Thailand Beaches: Bangkok to Ko Samui
Thailand: Night Markets & Blue Waters
13 Reviews by TourRadar travelers“The best adventure, met some amazing people and explored the best parts of Thailand!”
Daisy, traveled in May 2022
Duration 15 days Destinations Bangkok, Chiang Mai, Khao Sok National Park, Koh Samui, Ko Tao Age Range 18 to 39 year olds Operated in English Operator G Adventures September departure dates
See All Departure Dates4 Sep, 2025 10+ spaces left 11 Sep, 2025 10+ spaces left From $1,349
17% Off- US$1,120You save $229
Northern Thailand Adventure
17 Reviews by TourRadar travelers“It was packed with activities and the days were not short of things to do. I would recommend anyone wanting to travel to book a G adventures tour.”
Rebecca, traveled in July 2018
Duration 10 days Destinations Bangkok, Kanchanaburi, Ayutthaya, Chiang Mai Age Range up to 90 year olds Operated in English Operator G Adventures September departure dates
13 Sep, 2025 10+ spaces left From $1,429
25% Off- US$1,072You save $357
Highlights of Thailand
20 Reviews by TourRadar travelers“We really enjoyed and can recommend this trip. The first 3 days were a little bit tough on our elderly people in the group.”
Elizabeth, traveled in February 2020
Duration 10 days Destinations Bangkok, Kanchanaburi, Ayutthaya, Sukhothai, Chiang Mai Age Range 15 to 99 year olds Operated in English Operator Intrepid Travel September departure dates
5 Sep, 2025 10+ spaces left From $2,160
25% Off- US$1,620You save $540
Thailand Adventure: Bangkok, Chiang Mai & Street Food Crawls
5 Reviews by TourRadar travelers“The mix of hotels and hostels was spot-on, and the logistics were smooth. If you want a taste of Thailand that goes beyond the touristy stuff, this tour is the real deal!”
Alizée, traveled in December 2023
Duration 7 days Destinations Bangkok, Srinakarin Dam, Kanchanaburi, Ayutthaya, Chiang Mai Age Range 18 to 35 year olds Operated in English Operator G Adventures September departure dates
28 Sep, 2025 10+ spaces left From $599
25% Off- US$449You save $149
Bangkok and Ancient Capitals, Small Group Tour
11 Reviews by TourRadar travelers“The hotels we were staying in were very nice.”
Nicole, traveled in September 2022
Duration 8 days Destinations Bangkok, Ayutthaya, Kamphaeng Phet, Lampang, Chiang Mai, Lamphun, Sukhothai, Lopburi Age Range 10 to 99 year olds Operated in English, German, Italian, French, Spanish Operator Destination Services Thailand September departure dates
See All Departure Dates2 Sep, 2025 10 spaces left 9 Sep, 2025 10 spaces left From $969
15% Off- US$824You save $145
Thai Intro + Dive
9 Reviews by TourRadar travelers“The tour included things I may have never seen on my own so I definitely got value for money.”
Natalie, traveled in February 2019
Duration 13 days Destinations Bangkok, Khao Sok National Park, Ko Pha Ngan, Koh Tao Age Range 18 to 39 year olds Operated in English Operator INTRO Travel September departure dates
See All Departure Dates1 Sep, 2025 10+ spaces left 3 Sep, 2025 10+ spaces left From $1,449
10% Off- US$1,304You save $144
Duration 9 days Destinations Bangkok, Khao Sok National Park, Ko Pha Ngan, Koh Samui Age Range 2 to 90 year olds Operated in English Operator Wonderful Holidays UK September departure dates
See All Departure Dates3 Sep, 2025 10 spaces left 7 Sep, 2025 10 spaces left From $1,588
4% Off- US$1,525You save $63
Trails and Gems of Siam, Small Group Tour
5 Reviews by TourRadar travelers“The highlight for me was our guide Sunny who was amazing. I enjoyed stopping at little markets and shops along the way.”
Karen, traveled in February 2019
Duration 5 days Destinations Bangkok, Ayutthaya, Kamphaeng Phet, Lampang, Chiang Mai, Lamphun, Sukhothai, Lopburi Age Range 10 to 99 year olds Operated in English, German, Italian, French, Spanish Operator Destination Services Thailand September departure dates
See All Departure Dates4 Sep, 2025 10 spaces left 11 Sep, 2025 10 spaces left From $813
15% Off- US$691You save $121
Treasures of Thailand 8 Days - Chiang Mai to South, Small Group Tour (English Only)
1 Review by TourRadar travelers“Great Tour minibus. Your every wish is considered.”
Frances, traveled in February 2023
Duration 8 days Destinations Chiang Mai, Lamphun, Lampang, Sukhothai, Uthai Thani, Ayutthaya, Kanchanaburi, Bangkok Age Range 10 to 99 year olds Operated in English Operator Destination Services Thailand September departure dates
See All Departure Dates4 Sep, 2025 10 spaces left 7 Sep, 2025 10 spaces left From $1,357
15% Off- US$1,154You save $203
Thailand Beaches: Bangkok to Ko Samui
2 Reviews by TourRadar travelers“We went to places we wouldn't have gone. We stayed in lodging we wouldn't have stayed. We did activities that we wouldn't have done.”
Philip, traveled in July 2017
Duration 10 days Destinations Bangkok, Ko Pha Ngan, Koh Tao, Koh Samui Age Range 15 to 99 year olds Operated in English Operator Intrepid Travel September departure dates
See All Departure Dates7 Sep, 2025 10 spaces left 21 Sep, 2025 10+ spaces left From
15% Off- US$1,505
