The Siam
5 starsThe Set CollectionThe Set Collection
An ultra-luxury riverside sanctuary in Bangkok designed by Bill Bensley, blending Art Deco elegance with a private museum of rare antiquities. With just 38 exceptionally spacious suites and pool villas, it offers unparalleled butler service and a private boat shuttle. It is a tranquil, historic haven far removed from the city's frantic pace.
When is the cheapest time to book The Siam?
Across 43,520 tracked price checks, the cheapest booking window for The Siam has been 61–90 days before check-in, at a $691 median per night. The observed median nightly rate is $688. The lowest nightly median over the next year is $572, around September 25.
| Date | Median | Range |
|---|---|---|
| Sep 4, 2026 | $673 | $673 - $700 |
| Sep 5, 2026 | $674 | $672 - $684 |
| Sep 6, 2026 | $678 | $674 - $717 |
| Sep 7, 2026 | $678 | $677 - $717 |
| Sep 8, 2026 | $678 | $674 - $717 |
| Sep 9, 2026 | $675 | $671 - $678 |
| Sep 10, 2026 | $679 | $670 - $717 |
| Sep 11, 2026 | $678 | $670 - $734 |
| Sep 12, 2026 | $678 | $671 - $717 |
| Sep 13, 2026 | $669 | $658 - $717 |
| Sep 14, 2026 | $1,036 | $977 - $1,082 |
| Sep 15, 2026 | $957 | $947 - $958 |
| Sep 16, 2026 | $690 | $596 - $724 |
| Sep 17, 2026 | $676 | $587 - $727 |
| Sep 18, 2026 | $678 | $670 - $816 |
| Sep 19, 2026 | $678 | $671 - $678 |
| Sep 20, 2026 | $671 | $550 - $734 |
| Sep 21, 2026 | $678 | $670 - $684 |
| Sep 22, 2026 | $678 | $670 - $684 |
| Sep 23, 2026 | $684 | $573 - $717 |
| Sep 24, 2026 | $601 | $573 - $816 |
| Sep 25, 2026 | $572 | $551 - $573 |
| Sep 26, 2026 | $576 | $573 - $694 |
| Sep 27, 2026 | $576 | $574 - $681 |
| Sep 28, 2026 | $576 | $573 - $581 |
| Sep 29, 2026 | $576 | $573 - $626 |
| Sep 30, 2026 | $576 | $570 - $643 |
| Oct 1, 2026 | $600 | $597 - $650 |
| Oct 2, 2026 | $711 | $597 - $784 |
| Oct 3, 2026 | $605 | $600 - $636 |
| Oct 4, 2026 | $793 | $772 - $802 |
| Oct 5, 2026 | $839 | $767 - $844 |
| Oct 6, 2026 | $609 | $598 - $640 |
| Oct 7, 2026 | $600 | $599 - $636 |
| Oct 8, 2026 | $609 | $598 - $640 |
| Oct 9, 2026 | $871 | $607 - $967 |
| Oct 10, 2026 | $612 | $597 - $640 |
| Oct 11, 2026 | $605 | $600 - $636 |
| Oct 12, 2026 | $609 | $597 - $640 |
| Oct 13, 2026 | $604 | $600 - $636 |
| Oct 14, 2026 | $609 | $597 - $640 |
| Oct 15, 2026 | $1,165 | $783 - $1,246 |
| Oct 16, 2026 | $612 | $597 - $640 |
| Oct 17, 2026 | $653 | $643 - $689 |
| Oct 18, 2026 | $660 | $646 - $693 |
| Oct 22, 2026 | $612 | $594 - $640 |
| Oct 23, 2026 | $606 | $604 - $636 |
| Oct 24, 2026 | $612 | $606 - $640 |
| Oct 25, 2026 | $920 | $854 - $935 |
| Oct 26, 2026 | $600 | $598 - $640 |
| Oct 27, 2026 | $606 | $605 - $636 |
| Oct 28, 2026 | $612 | $597 - $640 |
| Oct 29, 2026 | $606 | $605 - $636 |
| Oct 30, 2026 | $612 | $608 - $640 |
| Oct 31, 2026 | $606 | $605 - $636 |
| Nov 1, 2026 | $620 | $608 - $650 |
| Nov 2, 2026 | $729 | $726 - $765 |
| Nov 3, 2026 | $656 | $641 - $686 |
| Nov 4, 2026 | $659 | $657 - $692 |
| Nov 5, 2026 | $660 | $655 - $669 |
| Nov 6, 2026 | $673 | $651 - $706 |
| Nov 7, 2026 | $677 | $665 - $799 |
| Nov 8, 2026 | $627 | $613 - $647 |
| Nov 9, 2026 | $740 | $717 - $776 |
| Nov 10, 2026 | $687 | $686 - $723 |
| Nov 11, 2026 | $697 | $682 - $729 |
| Nov 12, 2026 | $616 | $613 - $647 |
| Nov 13, 2026 | $692 | $679 - $726 |
| Nov 14, 2026 | $682 | $680 - $717 |
| Nov 15, 2026 | $620 | $608 - $650 |
| Nov 16, 2026 | $688 | $687 - $720 |
| Nov 17, 2026 | $695 | $678 - $726 |
| Nov 18, 2026 | $684 | $670 - $718 |
| Nov 19, 2026 | $631 | $608 - $650 |
| Nov 20, 2026 | $680 | $666 - $714 |
| Nov 21, 2026 | $1,104 | $1,035 - $1,126 |
| Nov 22, 2026 | $867 | $680 - $970 |
| Nov 23, 2026 | $689 | $676 - $723 |
| Nov 24, 2026 | $684 | $682 - $719 |
| Nov 25, 2026 | $687 | $674 - $721 |
| Nov 26, 2026 | $617 | $616 - $647 |
| Nov 27, 2026 | $685 | $661 - $719 |
| Nov 28, 2026 | $678 | $677 - $713 |
| Nov 29, 2026 | $622 | $608 - $650 |
| Nov 30, 2026 | $682 | $660 - $716 |
| Dec 1, 2026 | $695 | $682 - $729 |
| Dec 2, 2026 | $688 | $685 - $722 |
| Dec 3, 2026 | $681 | $667 - $714 |
| Dec 4, 2026 | $686 | $684 - $720 |
| Dec 5, 2026 | $683 | $669 - $716 |
| Dec 6, 2026 | $616 | $613 - $647 |
| Dec 7, 2026 | $697 | $681 - $728 |
| Dec 8, 2026 | $682 | $680 - $717 |
| Dec 9, 2026 | $691 | $689 - $723 |
| Dec 10, 2026 | $691 | $688 - $726 |
| Dec 11, 2026 | $697 | $683 - $731 |
| Dec 12, 2026 | $688 | $685 - $722 |
| Dec 13, 2026 | $622 | $608 - $650 |
| Dec 14, 2026 | $697 | $694 - $732 |
| Dec 15, 2026 | $620 | $608 - $650 |
| Dec 16, 2026 | $688 | $678 - $723 |
| Dec 17, 2026 | $690 | $677 - $724 |
| Dec 18, 2026 | $731 | $730 - $767 |
| Dec 19, 2026 | $758 | $740 - $792 |
| Dec 20, 2026 | $1,145 | $760 - $1,163 |
| Dec 21, 2026 | $795 | $775 - $830 |
| Dec 22, 2026 | $974 | $958 - $1,007 |
| Dec 23, 2026 | $969 | $946 - $1,013 |
| Dec 24, 2026 | $1,020 | $1,019 - $1,070 |
| Dec 25, 2026 | $969 | $946 - $1,013 |
| Dec 26, 2026 | $1,216 | $1,137 - $8,921 |
| Dec 27, 2026 | $1,337 | $1,297 - $9,134 |
| Dec 28, 2026 | $1,871 | $1,752 - $8,921 |
| Dec 29, 2026 | $1,175 | $1,139 - $9,134 |
| Dec 30, 2026 | $1,406 | $1,315 - $9,007 |
| Dec 31, 2026 | $1,553 | $1,505 - $10,625 |
| Jan 1, 2027 | $1,141 | $1,054 - $9,150 |
| Jan 2, 2027 | $1,081 | $1,048 - $9,368 |
| Jan 3, 2027 | $883 | $881 - $928 |
| Jan 4, 2027 | $892 | $872 - $933 |
| Jan 5, 2027 | $887 | $885 - $928 |
| Jan 6, 2027 | $650 | $633 - $677 |
| Jan 7, 2027 | $684 | $680 - $715 |
| Jan 8, 2027 | $660 | $657 - $687 |
| Jan 9, 2027 | $957 | $641 - $1,051 |
| Jan 10, 2027 | $650 | $645 - $677 |
| Jan 11, 2027 | $644 | $641 - $673 |
| Jan 12, 2027 | $647 | $633 - $677 |
| Jan 13, 2027 | $644 | $641 - $673 |
| Jan 14, 2027 | $650 | $633 - $677 |
| Jan 15, 2027 | $644 | $641 - $673 |
| Jan 16, 2027 | $815 | $785 - $839 |
| Jan 17, 2027 | $644 | $641 - $673 |
| Jan 18, 2027 | $665 | $633 - $677 |
| Jan 19, 2027 | $641 | $638 - $673 |
| Jan 20, 2027 | $650 | $633 - $677 |
| Jan 21, 2027 | $644 | $640 - $673 |
| Jan 22, 2027 | $719 | $702 - $751 |
| Jan 23, 2027 | $886 | $872 - $917 |
| Jan 24, 2027 | $650 | $633 - $677 |
| Jan 25, 2027 | $651 | $641 - $673 |
| Jan 26, 2027 | $648 | $633 - $677 |
| Jan 27, 2027 | $644 | $640 - $673 |
| Jan 28, 2027 | $665 | $633 - $677 |
| Jan 29, 2027 | $644 | $641 - $673 |
| Jan 30, 2027 | $665 | $633 - $677 |
| Jan 31, 2027 | $644 | $641 - $673 |
| Feb 1, 2027 | $665 | $633 - $677 |
| Feb 2, 2027 | $644 | $632 - $673 |
| Feb 3, 2027 | $665 | $633 - $677 |
| Feb 4, 2027 | $644 | $642 - $673 |
| Feb 5, 2027 | $684 | $663 - $696 |
| Feb 6, 2027 | $665 | $662 - $695 |
| Feb 7, 2027 | $698 | $663 - $710 |
| Feb 8, 2027 | $684 | $681 - $717 |
| Feb 9, 2027 | $704 | $671 - $719 |
| Feb 10, 2027 | $678 | $674 - $709 |
| Feb 11, 2027 | $695 | $660 - $706 |
| Feb 12, 2027 | $660 | $660 - $691 |
| Feb 13, 2027 | $674 | $641 - $685 |
| Feb 14, 2027 | $644 | $641 - $673 |
| Feb 15, 2027 | $665 | $620 - $677 |
| Feb 16, 2027 | $644 | $641 - $673 |
| Feb 17, 2027 | $665 | $625 - $677 |
| Feb 18, 2027 | $644 | $641 - $673 |
| Feb 19, 2027 | $665 | $633 - $677 |
| Feb 20, 2027 | $644 | $641 - $673 |
| Feb 21, 2027 | $665 | $633 - $677 |
| Feb 22, 2027 | $644 | $641 - $673 |
| Feb 23, 2027 | $665 | $633 - $677 |
| Feb 24, 2027 | $644 | $642 - $673 |
| Feb 25, 2027 | $665 | $633 - $677 |
| Feb 26, 2027 | $659 | $644 - $673 |
| Feb 27, 2027 | $665 | $633 - $677 |
| Feb 28, 2027 | $659 | $644 - $673 |
| Mar 1, 2027 | $680 | $646 - $691 |
| Mar 2, 2027 | $644 | $624 - $673 |
| Mar 3, 2027 | $711 | $654 - $768 |
| Mar 4, 2027 | $665 | $633 - $770 |
| Mar 5, 2027 | $651 | $624 - $766 |
| Mar 6, 2027 | $711 | $654 - $768 |
| Mar 7, 2027 | $665 | $633 - $770 |
| Mar 8, 2027 | $644 | $634 - $766 |
| Mar 9, 2027 | $711 | $654 - $768 |
| Mar 10, 2027 | $665 | $633 - $770 |
| Mar 11, 2027 | $644 | $635 - $766 |
| Mar 12, 2027 | $711 | $654 - $768 |
| Mar 13, 2027 | $665 | $633 - $770 |
| Mar 14, 2027 | $644 | $635 - $766 |
| Mar 15, 2027 | $715 | $662 - $768 |
| Mar 16, 2027 | $665 | $633 - $770 |
| Mar 17, 2027 | $644 | $634 - $766 |
| Mar 18, 2027 | $711 | $654 - $768 |
| Mar 19, 2027 | $665 | $633 - $770 |
| Mar 20, 2027 | $648 | $644 - $766 |
| Mar 21, 2027 | $711 | $654 - $768 |
| Mar 22, 2027 | $667 | $621 - $771 |
| Mar 23, 2027 | $644 | $636 - $766 |
| Mar 24, 2027 | $711 | $654 - $768 |
| Mar 25, 2027 | $665 | $633 - $770 |
| Mar 26, 2027 | $651 | $634 - $766 |
| Mar 27, 2027 | $711 | $654 - $768 |
| Mar 28, 2027 | $665 | $633 - $770 |
| Mar 29, 2027 | $650 | $634 - $766 |
| Mar 30, 2027 | $711 | $654 - $768 |
| Mar 31, 2027 | $665 | $633 - $770 |
| Apr 1, 2027 | $644 | $634 - $766 |
| Apr 2, 2027 | $711 | $654 - $768 |
| Apr 3, 2027 | $665 | $633 - $770 |
| Apr 4, 2027 | $644 | $634 - $766 |
| Apr 5, 2027 | $711 | $654 - $768 |
| Apr 6, 2027 | $629 | $598 - $728 |
| Apr 7, 2027 | $608 | $599 - $724 |
| Apr 8, 2027 | $672 | $618 - $725 |
| Apr 9, 2027 | $654 | $610 - $728 |
| Apr 10, 2027 | $608 | $601 - $724 |
| Apr 11, 2027 | $672 | $618 - $725 |
| Apr 12, 2027 | $629 | $597 - $728 |
| Apr 13, 2027 | $608 | $599 - $724 |
| Apr 14, 2027 | $672 | $618 - $725 |
| Apr 15, 2027 | $629 | $598 - $728 |
| Apr 16, 2027 | $608 | $600 - $724 |
| Apr 17, 2027 | $672 | $618 - $725 |
| Apr 18, 2027 | $629 | $598 - $728 |
| Apr 19, 2027 | $608 | $601 - $724 |
| Apr 20, 2027 | $675 | $625 - $725 |
| Apr 21, 2027 | $629 | $597 - $728 |
| Apr 22, 2027 | $608 | $599 - $724 |
| Apr 23, 2027 | $672 | $618 - $725 |
| Apr 24, 2027 | $629 | $598 - $728 |
| Apr 25, 2027 | $608 | $599 - $724 |
| Apr 26, 2027 | $672 | $618 - $725 |
| Apr 27, 2027 | $629 | $598 - $728 |
| Apr 28, 2027 | $608 | $601 - $724 |
| Apr 29, 2027 | $675 | $625 - $725 |
| Apr 30, 2027 | $629 | $598 - $728 |
| May 1, 2027 | $608 | $599 - $724 |
| May 2, 2027 | $672 | $618 - $725 |
| May 3, 2027 | $629 | $598 - $728 |
| May 4, 2027 | $615 | $599 - $724 |
| May 5, 2027 | $672 | $618 - $725 |
| May 6, 2027 | $629 | $598 - $728 |
| May 7, 2027 | $608 | $599 - $724 |
| May 8, 2027 | $672 | $618 - $725 |
| May 9, 2027 | $629 | $597 - $728 |
| May 10, 2027 | $608 | $601 - $724 |
| May 11, 2027 | $672 | $618 - $725 |
| May 12, 2027 | $629 | $598 - $728 |
| May 13, 2027 | $610 | $599 - $724 |
| May 14, 2027 | $672 | $618 - $725 |
| May 15, 2027 | $629 | $598 - $728 |
| May 16, 2027 | $608 | $599 - $724 |
| May 17, 2027 | $672 | $618 - $725 |
| May 18, 2027 | $618 | $597 - $728 |
| May 19, 2027 | $608 | $599 - $724 |
| May 20, 2027 | $673 | $620 - $725 |
| May 21, 2027 | $629 | $612 - $728 |
| May 22, 2027 | $608 | $600 - $724 |
| May 23, 2027 | $683 | $640 - $725 |
| May 24, 2027 | $629 | $598 - $728 |
| May 25, 2027 | $608 | $599 - $724 |
| May 26, 2027 | $672 | $618 - $725 |
| May 27, 2027 | $629 | $597 - $728 |
| May 28, 2027 | $615 | $600 - $724 |
| May 29, 2027 | $672 | $618 - $725 |
| May 30, 2027 | $629 | $598 - $728 |
| May 31, 2027 | $608 | $599 - $724 |
| Jun 1, 2027 | $672 | $618 - $725 |
| Jun 2, 2027 | $629 | $598 - $728 |
| Jun 3, 2027 | $1,340 | $1,310 - $1,579 |
Observed sample summaries are historical price observations, not guaranteed availability.
Our review
Overall ratingA
The Siam is an ultra-luxury riverside sanctuary in Bangkok designed by Bill Bensley, blending Art Deco elegance with a private museum of rare antiquities. Reviewers consistently praise its exceptionally spacious suites, unparalleled butler service, and tranquil atmosphere that feels far removed from the city's frantic pace. While highly acclaimed for its design and hospitality, its secluded location means it functions best as a peaceful retreat rather than a base for intense sightseeing.
Best for
- Art and design connoisseurs — The property functions as a living museum, adorned with genuine antiques, vintage posters, and historical heirlooms from the owners' personal collection.
- Couples seeking romance — The secluded pool villas, tranquil riverside setting, and private boat transfers past historic temples offer an intimate and peaceful atmosphere.
- Travellers prioritizing service — The dedicated 24-hour butler service and highly personalized care from the staff ensure an exceptionally high standard of hospitality.
Not ideal for
- Active sightseers and shoppers — The hotel is located in the historic Dusit district, meaning taxi rides to central shopping malls and modern downtown districts can take up to an hour due to traffic.
- Nightlife enthusiasts — The hotel's bars and restaurants close relatively early, which may limit guests looking for late-night dining and cocktail options.
Rating breakdown
- B+Location — Situated in the quiet, historic Dusit district along the river, offering peace but requiring long taxi rides to reach central shopping areas.
- A-Rooms — Exceptionally spacious suites and villas with bespoke antique decor, though minor plumbing issues like weak water pressure were occasionally noted.
- A+Service — Exemplary 24-hour butler service and highly attentive management that anticipate guest needs flawlessly.
- ADining — Excellent à la carte breakfasts and authentic Thai cuisine, though the menu can feel slightly repetitive during longer stays.
- A+Facilities — Outstanding amenities including a riverside pool, a professional Muay Thai boxing ring, a luxury spa, and a private cinema room.
- A-Value — Premium pricing for rooms, dining, and spa treatments that aligns with the hotel's ultra-luxury positioning.
Verdict
The Siam is ideal for luxury travellers, art lovers, and couples seeking a quiet, museum-like sanctuary on the Chao Phraya River. It is less suited for those who want to be within walking distance of downtown shopping districts or prefer minimalist, modern interiors.
61–90 days in advance
Across observed booking windows, median prices range from $691 to $822. The spread is modest, so treat this as a directional signal rather than a strict rule.
Booking window medians
43,520 price checks - high confidenceCompared with Bangkok
Its observed median is 190% above the Bangkok city median.
See the Bangkok timing chartFrequently asked questions
How much does The Siam cost per night?
Observed nightly medians for The Siam center on $688, ranging from $572 on the cheapest dates to $1,871 at the peak.
Is The Siam cheaper last-minute or in advance?
Booking in advance has been cheaper: the 61–90 days window shows a $691 median per night, against $778 when booked 2–3 days before check-in.
Is The Siam cheaper on weekdays than on weekends?
The day of the week barely moves the price: the Sunday–Thursday median of $706 and the Friday–Saturday median of $707 differ by less than 5%. The cheapest check-in day has been Thursday.
What is the cheapest time of year to stay at The Siam?
Over the next year, October looks cheapest with nightly medians around $611, while June peaks at around $1,371.
When is The Siam most expensive?
The highest nightly median observed over the next year is $1,871, around December 28. By booking window, prices peak at a $822 median when booked 4–7 days before check-in.
How does The Siam compare with Bangkok hotel prices?
Its $688 observed median runs 190% above the Bangkok city median of $237.
Bangkok
3/2 Thanon Khao, Vachirapayabal, Dusit, Bangkok, 10300, Thailand




