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Top 10 Onsens in Bangkok for the Most Relaxing Bath You’ll Ever Have in Town!
Nothing beats hopping on a soothing onsen bath to reduce stress and improve your skin’s health after a busy day in Bangkok. While hotels and their amenities can give you a lift, visiting an onsen place has never failed to bring me back to my feet.
Sure, the Bangkokian lifestyle offers all kinds of excitement but it’s just as draining physically and mentally. On the other hand, relying on a mediocre onsen spot can make your day even more horrifying (I wouldn’t even wish it on my enemies).
Good thing we have a solid research team for these kinds of situations. To avoid a harrowing experience, we left no stone unturned to track the best onsens in Bangkok—all to help you enjoy the best relaxation spots in the capital. Read on!
Yunomori Onsen & Spa Sukhumvit Soi 26
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Address: 120, 5 Soi Sukhumvit 26, Khlong Tan, Khlong Toe
Operating Hours: 10 a.m. – 12 a.m. (Monday – Saturday)
Contact Number: +66 2 259 5778
Pricing: ฿
Yunomori Onsen & Spa is one of the more budget-friendly onsens in Bangkok thanks to its affordable day pass tickets. They also have numerous types of onsens, from mineral water baths to jet baths, garden baths, teak baths, and more.
However, this place is best known for its signature onsen with magnesium sulfate which promotes natural detoxification and healing. Their jet bath is also a must-try because the intense water pressure is great for muscle relief, blood circulation, and metabolism.
You can also book their onsen with additional Thai or aromatherapy massage for a more holistic treatment and deeper relaxation. Don’t forget to try their sauna, steam room, and ice bath facilities as well.
Pro Tip:
For a significant discount, purchase 10 of their single-entry passes at once. If you’re staying in Bangkok for a while, you can also get their half-year or annual onsen passes for even greater discounts.
Let’s Relax Onsen and Spa Thonglor
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Address: 300 Thong Lo, Khlong Tan Nuea, Watthana
Operating Hours: 10 a.m. – 12 a.m. (Monday – Saturday)
Contact Number: +66 2 042 8045
Pricing: ฿฿
Let’s Relax Onsen and Spa Thonglor is a solid pick if you’re looking for a place that offers all-day passes. This pass also gives you access to numerous other facilities like their sauna, Himalayan hot stone bed baths, steam rooms, and cool-down rooms.
Their hot baths feature imported minerals from Gero which is one of Japan’s best places for onsen. These mineral-enriched baths work at a cellular level to promote healing, rejuvenation, and protection for your body.
There’s a scent-infused lounge with Lanna-themed interiors for post-onsen relaxation. Here, you can listen to soothing music and indulge in refreshing drinks and snacks, from cold pandan to hot ginger tea, coconut cookies, and mango sticky rice.
Pro Tip:
Advanced booking is required if you want to use their onsen services. It’s also worth noting that this onsen and spa is located on the 5th floor of Grande Centre Point, so you can use this hotel’s free parking spaces.
Just keep in mind that this is only free for 6 hours, so don’t keep your vehicle parked for much longer unless you don’t mind paying the subsequent parking fees.
Once Upon A Thai Wellness and Spa
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Address: 231/4 Soi, Sarasin Road, Lumphini, Pathum Wan
Operating Hours: 10 a.m. – 12 a.m. (Monday – Saturday)
Contact Number: +66 95 292 9699
Pricing: ฿฿฿
Once Upon A Thai Wellness and Spa is a chic onsen place in Bangkok tucked away in an alleyway north of Lumpini Park. It provides a private onsen experience bundled with a wide range of relaxing spa treatments.
This includes 30 to 90 minutes of body scrub, therapeutic aroma massage, or facial. In fact, their best wellness package is an extensive 210-minute treatment with a private onsen, body scrub, therapeutic aroma massage, and organic infusion facial.
You can also choose between a white ion or a Thai herbal bath. The former uses negative ions and microbubbles that protect and massage the skin while the latter is infused with aromatic herbs and magnesium sulfate for healing and relaxation.
Pro Tip:
This place doesn’t offer a daily pass so it might not be ideal if you only want to use their onsen. For a smoother experience, we also recommend booking your appointment in advance via their official website.
Kashikiri Onsen and Spa Sukhumvit 49
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Address: 84 Sukhumvit 49/2 Alley, Khlong Tan Nuea, Watthana
Operating Hours: 10 a.m. – 9 p.m. (Monday – Saturday)
Contact Number: +66 81 268 4624
Pricing: ฿฿
Kashikiri Onsen and Spa Sukhumvit 49 is a fan-favorite among couples. This onsen in Bangkok specializes in private and couple-centered hot bath sessions that include body massage and scrub in the comfort of their Japanese garden-view spa facilities.
They also use bamboo barrel hot baths which makes the experience more intimate for couples. This place also provides you with a chic yukata dress and serves hot tea, green tea cakes, and watermelon slices for snacks.
Don’t worry, this place also has packages for single guests so you don’t have to bring someone to enjoy their onsen. It’s also worth noting that they use two types of water in their hot baths: one for muscle relaxation and another for skin nourishment.
Pro Tip:
Kashikiri Onsen and Spa Sukhumvit 49 posts special promotions on their Facebook page monthly, so be sure to check it out before your visit. Sometimes, they offer discounts for couples, siblings, families, friends, and more.
Pañpuri Wellness
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Address: 12th Floor, Gaysorn Urban Resort, 127 Ratchadamri Road, Lumphini
Operating Hours: 10 a.m. – 10 p.m. (Monday – Saturday)
Contact Number: +66 2 253 8899
Pricing: ฿฿
Pañpuri Wellness is a luxury spa known for its state-of-the-art onsen facilities, from male and female public onsens to a swanky private onsen suite. There’s also an Akasuri scrub room, relaxation lounge, wellness studio, Thai massage room, and more.
It’s also on the 12th floor of the high-rise Gaysorn Urban Resort, so it’s one of the more scenic onsens in Bangkok. In fact, they have hot baths next to tall and wide glass windows which give you a panoramic view of the city’s breathtaking skyline.
They also use alkaline water from Ureshino onsens in Japan. This mineral-rich water is infused with sodium bicarbonate and sodium chloride, which are popular ingredients for skin smoothing and anti-aging.
Pro Tip:
Pañpuri Wellness offers reasonably priced daily passes for their onsen but you can only use them from Monday to Thursday. You can also get a discount or extra gifts if you purchase 5 or 10 passes at once via their website.
Yumoto Spa Private Onsen Bangkok
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Address: 29 Soi Sukhumvit 31, Klongtoey Nua, Watthana
Operating Hours: 11 a.m. – 10 p.m. (Monday – Saturday)
Contact Number: +66 85 563 6441
Pricing: ฿฿฿
Yumoto Spa Private Onsen Bangkok is a luxurious onsen spot with traditional Japanese-style rustic interiors and a broad range of spa facilities and treatments. Think private onsen, Himalayan salt sauna, royal Thai massage, body scrub, and more.
Their onsen and sauna are designed for 2 people, so they’re also popular among couples in Bangkok. Plus, these facilities are included in the same package, so you have full access to them during your 45-minute appointment.
Onsen access is also included if you book a body scrub, Clarins scrub, or their signature Yumoto 7-step facial treatment. Their onsen uses volcanic hot spring waters that provide muscle and joint relief, enhanced metabolism, better skin health, etc.
Pro Tip:
Yumoto Spa Private Onsen Bangkok doesn’t have the best soundproofing so it might not be the ideal option if you prefer a private onsen where you won’t have to deal with loud traffic noises.
Ichirin Wellness
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Address: Neighbor Building, 89/8 24 Sukhumvit 24 Alley, Khlong Tan, Khlong Toei
Operating Hours: 10 a.m. – 10 p.m. (Monday – Saturday)
Contact Number: +66 96 975 1222
Pricing: ฿
Ichirin Wellness is best known for its modern Japanese-themed interiors and facilities. This place also offers 4 traditional onsens: a silk bath, Japanese herb bath, cold bath, and jet bath.
Their silk bath, also known as kinu-no-yu, is the top pick if you want silky smooth skin. This onsen creates white bubbles that open your pores and absorb any skin impurity like fats, oils, cosmetic residues, and more.
If you want a more medicinal onsen session, you can also opt for the Japanese herb bath and jet bath for their aromatherapeutic and massaging effects. Meanwhile, their cold bath is great for tightening pores and preventing colds after showering.
Pro Tip:
Ichirin Wellness announces its special promotions on its official Instagram page so we suggest checking it out before your visit. Sometimes, they offer free onsen access for booking any of their massage treatments.
Sook Sabai Onsen & Spa
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Address: 392, 12-15 Sukhumvit 20 Alley, Khlong Toei, Khet Khlong Toei
Operating Hours: 10 a.m. – 12 a.m. (Monday – Saturday)
Contact Number: +66 2 258 6273
Pricing: ฿฿฿
Sook Sabai Onsen & Spa is an accessible onsen place in Bangkok’s bustling Sukhumvit neighborhood. It offers private and traditional Japanese onsen experience for 30 or 60 minutes.
Their onsen is also available in packages along with numerous spa treatments, from traditional Thai massage to foot massage, oil massage, body scrub, and more. Just know that you can only enjoy their onsen for 30 minutes if you book it via a package.
You can also adjust the water temperature on their Japanese bamboo barrel tubs to your liking which is definitely a plus. However, they don’t offer different types of bath water, so expect only their onsen to smoothen your skin and relax your muscles.
Pro Tip:
For the best experience, book your appointment well in advance. Their hot tubs take up to 45 minutes to fill with water so an advanced booking allows the staff to prepare it for you beforehand.
Mi Onsen & Spa
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Address: 186/3-4 Soi Sukhumvit 16, Khwaeng Khlong Toei, Khlong Toei
Operating Hours: 10 a.m. – 11 p.m. (Monday – Saturday)
Contact Number: +66 63 521 1170
Pricing: ฿
Mi Onsen & Spa is on the unique side. It’s a Korean-style onsen place in Bangkok offering a wide array of public pool facilities for skin health and muscle relief, from a hot bath to a jet bath, ice bath, milk bath, and more.
They also have 45-minute private onsen sessions for single guests and couples. You can also pick between pools of varying water temperatures, so there are plenty of onsen options for everyone.
Moreover, they have onsen packages that include Thai massage, aroma massage, foot massage, Korean scrub, etc. This place also has one of the cheapest onsen day passes in Bangkok, so it’s definitely a must-try if you’re looking for a budget-friendly option.
Pro Tip:
Day pass vouchers for Mi Onsen & Spa are available on the GoWabi website. We recommend purchasing your day pass there because they often have flash sales with nice discounts.
Omakasen Private Onsen & Spa
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Address: 305 Phatthanakan Road, Prawet
Operating Hours: 9 a.m. – 9 p.m. (Monday – Saturday)
Contact Number: +66 63 521 1170
Pricing: ฿฿฿
Omakasen Private Onsen & Spa specializes in personalized onsen sessions lasting between 120 and 180 minutes for up to 2 people. This includes a 30-minute onsen bath and body scrub with up to 120-minute full-body massage for deeper relaxation.
They have two types of wooden onsen tubs: a square wood tub and a circular bamboo barrel tub. But these tubs only use the same hot water which provides relief for stress and muscle and joint pain.
It also improves physical and skin health, flushes bodily toxins, and promotes relaxation and better sleep.
Pro Tip:
To get regular updates on discounts, follow their Facebook page.
