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.
Not a Minor DISCOVERY loyalty member? Join for free today.
Stay Offer
Legacy of Spice – 25th Anniversary Offer
FromSpend two or more nights with us and enjoy an unforgettable journey through Thai artistry, learning how to create spicy cuisine and harness herbal healing.
Experience Offer
Legacy of Spice – 25th Anniversary Experience
FromCelebrating our 25th anniversary with the most unforgettable of experiences of Thailand’s rich artistry and cuisine.
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 **
- 24-hour stay
- Complimentary minibar
- Early check-in
Experience heritage, comfort, and modern sophistication — all in one unforgettable stay.
Stay Longer Special
FromDIRECT BOOKING BENEFITS **
- 24-hour stay
- Complimentary minibar
- Early check-in
The longer you stay, the more you save. Extend your journey and luxuriate in savings of up to 15%.
Advance Purchase Special
FromDIRECT BOOKING BENEFITS **
- 24-hour stay
- Complimentary minibar
- Early check-in
The earlier you book, the more you save. Save up to 10% on a luxurious stay when you book seven days or more in advance.
Book Now Stay Now
FromDIRECT BOOKING BENEFITS **
- 24-hour stay
- Complimentary minibar
- Early check-in
Elegant accommodations and a delightful breakfast await. Immerse yourself in Bangkok's vibrant culture or unwind in our tranquil oasis. Escape now!
Best Flexible Rate
FromDIRECT BOOKING BENEFITS **
- 24-hour stay
- Complimentary minibar
- Early check-in
Enjoy exceptional rates on luxurious stays with the freedom you need to change your dates when you need to.
A Love Before Time – Weddings by Anantara Showcase 2026
Join us for the Weddings by Anantara Showcase 2026, where timeless romance meets bespoke celebrations.
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.
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Mooncake 2026
FromCelebrate Mid-Autumn Festival 2026 with Anantara Siam’s elegant mooncake collection, featuring collectible keepsakes inspired by reunion, prosperity, and timeless festive traditions.
The Siam Classic Afternoon Tea
FromThe Siam Classic returns to Anantara Siam Bangkok, featuring handcrafted pastries, refined savouries, and timeless afternoon tea elegance.
Lobster Thermidor à la Manhattan
FromA spectacular lobster experience elevated with bold Manhattan flair
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.
** 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
- Choice of one-way airport transfer or THB 2,000 hotel credit
Anantara Presidential Suite, Presidential Two-Bedroom Suite and The Penthouse (five bedrooms)
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
- 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
- Biscotti – 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.