Offers
10%
GHA DISCOVERY Members Privilege
Save 15% on food-only a la carte menu at all restaurants (excluding in-room dining) from now until 31 December 2026 (excluding all festive seasons). Terms & Conditions apply.
Promotions and packages at Anantara Siam Bangkok Hotel
Experience lavish sophistication at Bangkok’s most desired address. Select from our popular Bangkok hotel offers and promotions below, available exclusively at our luxury hotel in Bangkok.
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Anantara Siam Bangkok Hotel
155 Rajadamri Road, Bangkok 10330 Thailand
Excellent
4,374
Very Good
930
Average
234
Poor
83
Terrible
74
Exceptional Hospitality in a Perfect Location
2026-10-25
2026-10-25
The hotel has been newly renovated and is in an excellent location, just a 5-minute walk to Erawan Shrine and about 8–10 minutes to CentralWorld. Beyond the great location, what impressed me most was the warm and personalized service provided by the hotel staff, especially the Kasara Lounge team. Their hospitality truly made our stay memorable. This is definitely one of the best hotels I have stayed at, with excellent service throughout. I will definitely be back again!
GENUINE SMILES IN A TRANQUIL THAI OASIS
2026-10-24
2026-10-24
Since 1980 we have travelled across Europe and the UK, North America,Asia, and Australasia. We truly believe that the Anantara Siam stands at the top rank of all the establishments we have stayed in. There are many genuine examples architecture and design to remind us that we are in a Thai environment. Room attendants and service staff are friendly, professional and helpful. Their smiles are genuine, not coached. Jason the Restaurant manager was likewise happy to chat, whilst ever keeping his eye on guests often unexpressed needs. Joris at reception is a testament to fine service and is the master of little touches, like a souvenir photo or unexpected anniversary cake. Jam, the concierge could command the desk at any fine hotel anywhere with humour and smooth efficiency. The convenient location of the Skytrain doesn’t intrude on tropical ambience of the hotel’s setting. Yes the building is attractive, the food enticing and generous ( two courses in Madison’s magically became four ) but as in any memorable experience if it ever the people who make the difference.
Should be better
2026-10-24
2026-10-24
The renovation was still ongoing even though they advised it was complete. We could smell fresh paint in our room & it also smelled damp. There was noise heard from inside the room from the live music bar downstairs.
Festive Offer
Festive Pool Villa Retreat
FromThis festive season, step into a Garden Pool Villa adorned for Christmas, where seasonal charm and your private pool create an intimate city retreat.
Experience Offer
Thai Silk Scarf Weaving Class – 25th Anniversary Experience
FromExperience the art of Thai silk weaving at LOOM and create your own scarf inspired by generations of tradition.
Experience Offer
A Decade and Legacy of Royal Fashion – 25th Anniversary Experience
FromJourney into Thailand’s royal textile heritage and discover the artistry and legacy woven into Thai silk.
Stay Offer
Thai Silk Scarf Weaving Class – 25th Anniversary Offer
FromDiscover the gracious heritage of Bangkok through refined hospitality, cultural discovery and the enduring elegance of Thai silk.
The Ultimate Escape
FromEnjoy 25% savings on stays of four nights or more, with daily breakfast and an unforgettable escape in the heart of Bangkok.
Advance Purchase Special
FromDIRECT BOOKING BENEFITS **
- Complimentary minibar
- Early check-in
- Late check-out
The earlier you book, the more you save. Save up to 15% on a luxurious stay when you book seven days or more in advance.
Stay Longer Special
FromDIRECT BOOKING BENEFITS **
- Complimentary minibar
- Early check-in
- Late check-out
The longer you stay, the more you save. Extend your journey and luxuriate in savings of up to 20%.
Best Flexible Rate
FromDIRECT BOOKING BENEFITS **
- Complimentary minibar
- Early check-in
- Late check-out
Enjoy exceptional rates on luxurious stays with the freedom you need to change your dates when you need to.
The Siam Discovery Journey
FromExperience Bangkok through a stay that blends timeless hospitality with authentic local experiences.
The Urban Sanctuary Experience
FromEnjoy a two-night or longer escape in a luxury villa accommodation in the heart of Bangkok, inclusive of daily breakfast, an authentic Thai dining experience, and a refined afternoon tea journey. Enhance your wellbeing with an IV drip jet lag recovery treatment and a spa credit per night towards signature treatments.
Siam Legacy Reimagined
FromDIRECT BOOKING BENEFITS **
- Complimentary minibar
- Early check-in
- Late check-out
Experience heritage, comfort, and modern sophistication — all in one unforgettable stay.
The Ultimate "Stay & Sail"
Experience Bangkok’s newest suite and a luxury private cruise. The ultimate dual Thai escape awaits.
The Vivid Effect
FromRefresh your beauty from the inside out with our premium aesthetic combo.
Spooky Brownies
FromEnjoy a spooky Halloween afternoon decorating brownies at Mocha & Muffins, with delicious treats, creative fun and festive face painting.
The Siam Classic Afternoon Tea
FromThe Siam Classic returns to Anantara Siam Bangkok, featuring handcrafted pastries, refined savouries, and timeless afternoon tea elegance.
Spice Market Set Menu
FromExperience the essence of Thai cuisine through a specially curated set menu featuring classic flavours, aromatic herbs, and traditional recipes.
Express Business Lunch at Biscotti
FromEnjoy exceptional lunch time dining at Biscotti. Host an inspirational lunch hour whilst enjoying fine Italian flavours.
Shintaro Japanese Set Lunch with a Modern Twist
FromSavour a refreshed Japanese Set Lunch at Shintaro, featuring Izakaya delights, sushi, and desserts in a cosy downtown Bangkok setting.
Madison Business Lunch
FromJoin us at Madison Steak Avenue and savour the city’s finest flavours with our new Business Lunch promotion!
Birthday Brunch Celebration
FromCelebrate your birthday in an atmosphere of comfort and genuine warmth, where attentive hospitality and thoughtful moments create a sense of ease and togetherness.
All You Can Nikkei
FromIndulge in a vibrant Friday night at Guilty with All You Can Nikkei. Enjoy two hours of unlimited Latin–Nikkei specialties, served fresh and made to share.
Taste of Guilty – Lunch Set made Simple
FromDig into honest renditions of South American flavours from Guilty chef de cuisine Axel Javier Mancera.
Guilty Birthday Celebrations
FromGet ready to go big for your next birthday with Guilty's latest trio of birthday packages
The Garden Terrace Privatisation
Overlooking the tranquil pool and enveloped by lush tropical greenery, The Garden Terrace presents an exclusive open-air sanctuary for distinguished private gatherings.
Transformative Wellness with Dr Sooraj Sankar
FromExperience a rare opportunity to discover authentic Ayurvedic healing with Dr Sooraj Sankar, a respected wellness practitioner from India with over 15 years of experience.
Holistic Wellness Experiences by Nikki
FromMeet Khun Nikki for personalised holistic wellness, Reiki, sound healing and Thai therapies.
** ABOUT YOUR BOOK DIRECT BENEFITS (Only when applicable)
Exclusive stay privileges :Available until 31 March 2027
Deluxe Room, Siam Room and Kasara Executive Room
Enjoy thoughtful comforts designed to elevate every stay:
- Complimentary in-room minibar per room per stay
- Early check-in from 1:00 pm
- Late check-out until 3:00 pm
Siam Suite, Kasara Executive Suite, Anantara Suite, and Two Bedroom Kasara Executive Suite
An elevated experience with added flexibility and refined privileges:
- Complimentary in-room minibar per room per night
- Kasara Executive Lounge access
- 24-hour stay flexibility, allowing check-in and check-out at your convenience
Royal Suite, Two Bedroom Royal Suite, Garden Pool Suite, Garden Pool Villa, Anantara Garden Pool Villa and Two-Bedroom Garden Pool Villa
Minimum stay: 2 nights
Enhanced exclusivity for extended stays:
- Complimentary in-room minibar per room per night
- Kasara Executive Lounge access
- 24-hour stay flexibility, allowing check-in and check-out at your convenience
- Choice of one-way airport transfer or THB 2,000 hotel credit
Anantara Presidential Suite, Three Bedroom Presidential Suite, The Penthouse, and Anantara Pool Residence
Minimum stay: 2 nights
The pinnacle of residential-style luxury:
- Complimentary in-room minibar per room per night
- Kasara Executive Lounge access
- 24-hour stay flexibility, allowing check-in and check-out at your convenience
- Choice of round-trip airport transfers or THB 4,000 hotel credit
Two-Bedroom Jim Thompson Explorer Suite
Minimum stay: 2 nights
A refined stay inspired by heritage, artistry, and timeless elegance
- Roundtrip airport transfer with hotel limousine.
- An exclusive signature gift inspired by Jim Thompson.
- A Thai 5-course set menu at Spice Market
- 2-hour signature spa treatment for two persons.
- Vintage car transportation to the Jim Thompson Museum.
- Jim Thompson Museum package for two: tour, dinner, cocktails, and private transfer.
** All Direct Booking Benefits are applicable to specific room types or stay dates and cannot be used in conjunction with other offers.
FESTIVE DINING CREDIT
- Enjoy a complimentary dining credit of THB 5,000 per adult when booking a Room & Breakfast rate.
- This exclusive benefit is available for stays including the night of 31 December 2026.
- Your dining credit may be redeemed on 31 December 2026 only, inviting you to celebrate the New Year at one of the following venues:
- New Year’s Eve Gala Dinner Buffet at the Lobby
- Spice Market – New Year’s Eve menu
- Madison – special set menu
- AQUA – à la carte food and beverages (minimum spend applies)
- The dining credit is valid for one evening only and cannot be carried forward, exchanged for cash, or used on any other date.
- The credit will be applied directly to your selected dining experience on 31 December 2026.
- Dining credit is available for adult guests only.