10 Best South East Asia Multiday Tours in September 2026

8% OFF TODAY

Inside Vietnam + Cambodia Highlights - September 2026

4.8

(13 reviews )

No booking fees

Best price guaranteed

A fantastic trip. Our guides in both Vietnam and Cambodia were excellent. They really worked hard to make our trip memorable.

Active and outdoor

Tour Type

Small Group Tour

Accommodation

Hotel, Guest House, Home-stay

Age Range

16-99 yrs

Operated in

english

Destinations

Hanoi, Siem Reap, Mekong Delta

Hanoi, Siem Reap, Mekong Delta, Ho Chi Minh City, Cu Chi Tunnels, Phnom Penh, Angkor Thom, Angkor Wat, Halong Bay, Hue, Thien Mu Pagoda, Hoi An

8% OFF TODAY

Duration20 days

From

USD 2,670

USD 2,460

Saving

USD 210

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Bangkok To Hanoi: Chiang Mai, Night Markets & Streetside Bars - September 2026

32% OFF TODAY

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Bangkok to Hanoi: Chiang Mai, Night Markets & Streetside Bars - September 2026

(3 reviews )

No booking fees

Best price guaranteed

I had a great time on this tour, it was a really great way to take the stress and anxiety out of going to a new country by yourself and not knowing the language. It was good mix of activities, nature, temples, cities, and food. The experience I had with them felt far more authentic and less touristy than the other tour I booked right after the trip in Hanoi. Would happily travel with them again!

Cultural, religious and historic sites

Tour Type

Small Group Tour

Accommodation

Hostel, Bungalow, Guest House, Hotel, Sleeper Train

Age Range

18-35 yrs

Operated in

english

Destinations

Hanoi, Bangkok, Kanchanaburi, Ay

Hanoi, Bangkok, Kanchanaburi, Ayutthaya, Chiang Mai

32% OFF TODAY

Duration9 days

From

USD 949

USD 644

Saving

USD 305

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From the Angkor Temples to the Mekong Delta (port-to-port cruise) - September 2026

No booking fees

Best price guaranteed

From the heights of the Himalayas to the southern coasts of the South China Sea, winding over 2,700 miles, the Mekong is much more than just irrigation for Indochina—everywhere it flows, it fascinates men and shapes their lives. Come take an expedition on this grand and plentiful “water snake,” from the ruins of Angkor to Tonle Sap river following the footsteps of Henri Mouhot, to Phnom Penh and Ho Chi Minh City, still largely influenced by the French colonial days. Our meditative trip takes you along the Mekong River on board a ship combining charm and colonial-style comfort.

Cruise

Tour Type

Cruise Tour

Accommodation

Hotel, Ship Cabin

Age Range

18-79 yrs

Operated in

english

Destinations

Siem Reap, Ho Chi Minh City, Ton

Siem Reap, Ho Chi Minh City, Tonle Sap Lake, Kampong Tralach, Phnom Penh, Sa Dec, Cai Be

Duration11 days

From

USD 3,271

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From the Mekong Delta to the Angkor Temples (port-to-port cruise) - September 2026

No booking fees

Best price guaranteed

From the heights of the Himalayas to the southern coasts of the South China Sea, winding over 2,700 miles, the Mekong is much more than just irrigation for Indochina—everywhere it flows, it fascinates men and shapes their lives. Come take an expedition on this grand and plentiful “water snake,” from Ho Chi Minh City, still largely influenced by the French colonial days, to Phnom Penh, then Tonle Sap river, following the footsteps of Henri Mouhot. Our meditative trip takes you along the Mekong River on board a ship combining charm and colonial-style comfort.

Cruise

Tour Type

Cruise Tour

Accommodation

Hotel, Ship Cabin

Age Range

18-79 yrs

Operated in

english

Destinations

Siem Reap, Ho Chi Minh City, Sa

Siem Reap, Ho Chi Minh City, Sa Dec, Chau Doc, Phnom Penh, Kampong Chhnang, Angkor Wat

Duration11 days

From

USD 3,591

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Southeast Asia Trifecta: Cambodia, Vietnam & Bangkok Vibes - September 2026

27% OFF TODAY

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Southeast Asia Trifecta: Cambodia, Vietnam & Bangkok Vibes - September 2026

(4 reviews )

No booking fees

Best price guaranteed

I truly couldn?t have asked for a better trip!! My group was warm and friendly, our CEO Sony was intentional about supporting as many locals as possible with our visit, and it was a great mix of optional and included activities. The flexibility of doing what I wanted while also combining with the safety of having a group of other foreigners balanced out nicely. The price point was another great factor. I?d happily tour with G Adventures again!

Local culture

Tour Type

Small Group Tour

Accommodation

Hostel, Bungalow, Hotel

Age Range

18-35 yrs

Operated in

english

Destinations

Ho Chi Minh City, Bangkok, Siem

Ho Chi Minh City, Bangkok, Siem Reap, Chau Doc, Kampot, Koh Rong Island, Phnom Penh

27% OFF TODAY

Duration12 days

From

USD 1,249

USD 908

Saving

USD 341

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Vietnam & Cambodia Adventure - September 2026

22% OFF TODAY

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Vietnam & Cambodia Adventure - September 2026

No booking fees

Best price guaranteed

Vibrant Vietnam, charismatic Cambodia, beautiful Bangkok; this journey covers the very best of South East Asia. From the graceful elegance of Hanoi, across the serene beauty of Ha Long Bay, to the quaint charms of Hoi An and the frenetic energy of Ho Chi Minh City, experience ancient customs and delicious cuisine while travelling through the heart of Vietnam. Embark on an exciting tour down the Mekong River to Phnom Penh, and spend several days exploring the enigmatic temples of Angkor Wat. The bright lights of Bangkok are the ideal way to cap off this South East Asian adventure.

Local culture

Tour Type

Small Group Tour

Accommodation

Hotel, Sleeper Train, Guest House, Home-stay

Age Range

15-99 yrs

Operated in

english

Destinations

Hanoi, Bangkok, Hoi An, Ho Chi M

Hanoi, Bangkok, Hoi An, Ho Chi Minh City, Mekong Delta, Phnom Penh, Battambang, Siem Reap, Da Bac, Angkor Wat, Halong Bay, Hue

22% OFF TODAY

Duration23 days

From

USD 2,915

USD 2,262

Saving

USD 653

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Amazing Bali and Singapore - September 2026

Trip customizable

Best price guaranteed

Discover two of the most fascinating destinations in Southeast Asia with this small-group tour of Bali and Singapore! Padded rice terraces, spiritual sites, breathtaking landscapes, and famous landmarks await you on this magical journey. Your tour will begin in East Bali, where you will discover many unexplored treasures and visit the Mother Temple of Besakih, the holiest Hindu site in Bali. Make your way to Northern Bali to see the breathtaking green rice terraces, black sand beaches, and beautiful gardens. Travel to Oleh to explore this shopper’s paradise and visit the Batubulan Village, known for its stone carving art. Wander around the Celuk Village with its incredible paintings in Ubud, and see a traditional Kecak and Fire Dance performance in the area. From there you will catch your flight to Singapore to explore this fascinating city. Visit Thian Hock Keng, the oldest Chinese temple in Singapore, explore the district of Little India, and discover the National Orchid Gardens in search of different types of flowers. Choose from many world-class restaurants and cafes to taste the international cuisine and immerse yourself with local experiences in this extraordinary city, where your small-group tour of Bali and Singapore will end!

City sightseeing

Tour Type

Group Tour

Accommodation

Hotel

Age Range

8-99 yrs

Operated in

english

Destinations

Bali, Singapore, Kintamani

Duration11 days

From

USD 1,312

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Classic Cambodia & Vietnam - September 2026

No booking fees

Best price guaranteed

From Vietnam to Cambodia, discover incredible diversity, delectable cuisines, dramatic histories and natural beauty. Travel to Cambodia and delve into the dramatic Khmer legacy in Phnom Penh and explore the intricate temples of Angkor Wat. Travel to Vietnam and view the country's colourful history on the busy streets of Ho Chi Minh City, and explore the architecture of Hanoi. This trip offers places of breathtaking beauty, from the backwaters of the Mekong Delta, to the temples of Cambodia and the wonder of Halong Bay. Add a mix of friendly locals and age-old traditions to ensure the ultimate South East Asian experience.

City sightseeing

Tour Type

Small Group Tour

Accommodation

Hotel, Guest House

Age Range

15-99 yrs

Operated in

english

Destinations

Hanoi, Phnom Penh, Nha Trang, Ho

Hanoi, Phnom Penh, Nha Trang, Hoi An, Hue, Halong Bay, Siem Reap, Angkor Wat, Ho Chi Minh City, Mekong Delta

Duration20 days

From

USD 4,350

USD 4,220

Saving

USD 131

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65% OFF TODAY

Private 15-Day Expedition from Cambodia to Vietnam - September 2026

(1 review )

Trip customizable

Best price guaranteed

Everything was smooth - hotels were clean and well-located, transportation was on time, and guide was professional and enthusiastic. I especially loved the overnight experience on cruise in Mekong Delta and Halong Bay. This tour was perfect for someone wants to explore but also have time to relax. Thanks for making this so enjoyable!

Cultural, religious and historic sites

Tour Type

Private Tour

Accommodation

Hotel

Age Range

1-79 yrs

Operated in

chinese, english, french, german, russian, spanish

Destinations

Hanoi, Siem Reap, Phnom Penh, Ho

Hanoi, Siem Reap, Phnom Penh, Ho Chi Minh City, Halong Bay, Hoi An, Chau Doc, Cai Be

65% OFF TODAY

Duration15 days

From

USD 7,241

USD 2,534

Saving

USD 4,707

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Essential Vietnam And Cambodia - September 2026

(2 reviews )

Trip customizable

Best price guaranteed

This tour felt like a crash course in Southeast Asia, but in a good way. I wasn’t sure how much ground we could realistically cover in just over a week but this trip proved you don’t need a month to experience something meaningful. Everything was well-organized. What stood out most to me was how different Vietnam and Cambodia felt, even though they’re neighbors. Hanoi was buzzing with life..scooters zipping by, food stalls everywhere, and this mix of modern and old that was fascinating to watch. Our guide helped us navigate the chaos in a way that made it feel approachable rather than overwhelming. Then, just when things felt fast-paced we got a breather on the Ha Long Bay cruise. Being out on the water was peaceful, the views were unreal. In Cambodia, Angkor Wat was the big draw, and yes, it was absolutely worth it. But what I didn’t expect was how much I enjoyed the in-between moments. And while there’s always a lot of walking on these kinds of trips, the pace felt doable, even for those of us who aren’t exactly as young as me (53 :p) Would I do it again? Definitely. The trip left me feeling like I got a true taste of two cultures.

Cultural, religious and historic sites

Tour Type

Group Tour

Accommodation

Hotel, Resort

Age Range

8-99 yrs

Operated in

english

Destinations

Hanoi, Siem Reap, Halong Bay

Duration6 days

From

USD 1,207

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Best of Vietnam, Laos & Cambodia Tour | Small‑group Highlights Experience - September 2026

Trip customizable

Best price guaranteed

Experience the best of Indochina as you explore the borders of Vietnam, Laos, and Cambodia on our premium small-group Indochina tour. This carefully crafted journey takes you to the best tourist attractions of these vibrant countries with a luxurious 5-star cruise through the breathtaking Halong Bay. Immerse yourself in the region’s rich culture and history as you visit the iconic Cu Chi Tunnels, witness the colorful floating markets in Mekong Delta, and explore the awe-inspiring temple complex of Angkor Wat. From the moment you begin your journey, we ensure a seamless and stress-free travel experience. Our small group tours are designed for just 16 passengers, allowing us to provide a personal touch and exceptional service. We’ve thought of everything to make your trip extraordinary, from premium hotels in central locations to expert local tour guides who will enrich your adventure with insider knowledge. To make your journey even more comfortable, we offer a complimentary one-way chauffeur service from your home to the airport, so you can start your trip relaxed and refreshed, without the hassle of arranging transportation or battling traffic. Our commitment to a world-class experience extends throughout the entire trip, with 24/7 local assistance and travel guidance, ensuring you have support every step of the way. With Tweet World Travel, your adventure begins with a warm Meet-and-Greet Welcome Service by a local guide at the airport, and with guaranteed departures from just two guests, you’ll experience Indochina like never before. Don’t miss out on this unique opportunity to explore some of the most incredible destinations in the world!

Cultural, religious and historic sites

Tour Type

Small Group Tour

Accommodation

Hotel

Age Range

35-75 yrs

Operated in

english

Destinations

Siem Reap, Vientiane, Da Nang, C

Siem Reap, Vientiane, Da Nang, Cu Chi Tunnels, Ho Chi Minh City, Can Tho, Chau Doc, Phnom Penh, Bantaey Meanchay, Luang Prabang, Hanoi, Lan Ha Bay, Hoi An

Duration18 days

From

USD 4,351

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Epic Vietnam To Cambodia - September 2026

18% OFF TODAY

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Epic Vietnam to Cambodia - September 2026

No booking fees

Best price guaranteed

Want to explore Vietnam, Cambodia and Thailand but don't want to go it alone? Then why not experience all the markets, good street food, beaches, temples, ancient sites, homestays, long-tail boat rides and even more good food with a small group of new friends! If that sounds good, it's time to take an adventure through South East Asia to the incredible Angkor complex, the bustling streets of Hanoi and Ho Chi Minh City and the serene waters of Cat Ba Island. Get active with cycling tours and hiking options and learn about everyday village life in Sambo Prei Kuk. Tour the incredible natural beauty of Ninh Binh and kick back on the paradisial beaches of Koh Rong Island. End it all in Bangkok, where you can jet set home (to brag of an awesome trip well-travelled) or extend your stay and beach-it-up.

Adventure

Tour Type

Small Group Tour

Accommodation

Hotel, Sleeper Train, Home-stay, Bungalow, Hostel, Lodge

Age Range

18-35 yrs

Operated in

english

Destinations

Hanoi, Bangkok, Quy Nhon, Ho Chi

Hanoi, Bangkok, Quy Nhon, Ho Chi Minh City, Phnom Penh, Koh Rong Island, Sambor Prei Kuk, Siem Reap, Angkor Wat, Cat Ba Island, Ninh Binh, Hue, Hoi An

18% OFF TODAY

Duration21 days

From

USD 1,595

USD 1,315

Saving

USD 280

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13% OFF TODAY

Super Sales

Cycle South East Asia - September 2026

No booking fees

Best price guaranteed

Exercise the body and the mind with a leg pumping, eye-opening cycling tour of Vietnam, Cambodia and Thailand. Enjoy a different perspective as you bike through the limestone cliffs of north Vietnam, along rock-face hugging passes down the stunning coast and on to buzzing Ho Chi Minh City. Take dusty roads through rural villages in Cambodia, exploring nature-strewn ruins and spending time with locals, before finishing up in frenetic Bangkok. Work up an appetite and reward yourself with the delicious dishes the overflow in the streets – the pho in Vietnam, the fish curry in Cambodia and pad thai in Bangkok. Shift your adventure into a higher gear with a journey that takes you to the highlights of Southeast Asia.

Bicycle tours

Tour Type

Small Group Tour

Accommodation

Hotel, Resort, Sleeper Train, Guest House, Home-stay

Age Range

16-99 yrs

Operated in

english

Destinations

Hanoi, Bangkok, Nha Trang, Dalat

Hanoi, Bangkok, Nha Trang, Dalat, Phan Thiet, Ho Chi Minh City, Mekong Delta, Chau Doc, Phnom Penh, Siem Reap, Sa Kaew, Kabinburi, Mai Chau, Ninh Binh, Hue, Hoi An, Quy Nhon

13% OFF TODAY

Duration27 days

From

USD 4,840

USD 4,225

Saving

USD 615

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13% OFF TODAY

Vietnam & Cambodia Discovery Small‑group Tour - September 2026

(1 review )

Trip customizable

Best price guaranteed

Everything was perfect. Our day tour was amazing and very enjoyable. It could not have been better. I definitely will recommend this tour company to friends and family. All went down smoothly. Very friendly guides. You are really doing a great job.

Local culture

Tour Type

Small Group Tour

Accommodation

Bungalow, Hotel, Lodge

Age Range

35-75 yrs

Operated in

english

Destinations

Siem Reap, Halong Bay, Hoi An, H

Siem Reap, Halong Bay, Hoi An, Hue, Hanoi, Ho Chi Minh City, Mekong Delta

13% OFF TODAY

Duration16 days

From

USD 3,678

USD 3,200

Saving

USD 478

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All South East Asia Tours in September 2026

Page 8 of 993 Trips in South East Asia during September 2026 with 4,763 Reviews

Page 8 of 993 Trips in South East Asia during September 2026 with 4,763 Reviews

Inside Vietnam + Cambodia Highlights - September 2026

Bangkok to Hanoi: Chiang Mai, Night Markets & Streetside Bars - September 2026

From the Angkor Temples to the Mekong Delta (port-to-port cruise) - September 2026

From the Mekong Delta to the Angkor Temples (port-to-port cruise) - September 2026

Southeast Asia Trifecta: Cambodia, Vietnam & Bangkok Vibes - September 2026

Vietnam & Cambodia Adventure - September 2026

Amazing Bali and Singapore - September 2026

Classic Cambodia & Vietnam - September 2026

Private 15-Day Expedition from Cambodia to Vietnam - September 2026

Essential Vietnam And Cambodia - September 2026

Best of Vietnam, Laos & Cambodia Tour | Small‑group Highlights Experience - September 2026

Epic Vietnam to Cambodia - September 2026

Cycle South East Asia - September 2026

Vietnam & Cambodia Discovery Small‑group Tour - September 2026

Europe

Asia

South America

Africa

North America

Oceania

Polar

Food, wine, events and nightlife

Adventure and sport

Wildlife, landscapes and nature

Boat tours, water sports and marine wildlife

Sightseeing, attractions, culture and history

Air tours, road trips and transfers

Beach, romance, getaways and relaxation

Special interests and hobbies

All South East Asia Tours in September 2026

Page 8 of 993 Trips in South East Asia during September 2026 with 4,763 Reviews

Page 8 of 993 Trips in South East Asia during September 2026 with 4,763 Reviews