Best Spas in London: Hotel Spas, Day Spas and Prices for 2026

Updated and fact-checked: September 2026 · Written by Clara Whitby, The Londonologist.

A spa day is one of the smartest things you can do on a London trip, especially after a long transatlantic flight. Jet lag, sore shoulders from carrying bags around the city, feet worn out from the museums: an hour on a treatment table resets all of it. London also happens to be a world capital of the hotel spa, with marble hydrotherapy pools, gold-leaf treatment suites and thermal circuits hidden beneath some of its most famous addresses. This guide names the best spas in the city, tells you what they cost in pounds and dollars, and explains how to book so you get the room and the time you want.

Why Book a Spa Day in London

London is intense. It rewards you with world-class sights, but it asks a lot of your legs, your sleep and your patience with the crowds. A spa day buys back the calm. It is also one of the few luxury experiences in the city where the price can be reasonable: a treatment at a five-star hotel spa often costs less than dinner at the restaurant upstairs, and you get the pool, sauna and steam room for the day. For couples, a spa afternoon is a quiet, unhurried date. For solo travelers, it is the safest, most restorative way to spend a jet-lagged first day. If relaxation is the goal, see also our guide to relaxing activities in London and luxury experiences in London.

The Best Luxury Hotel Spas in London

These are the flagships, the spas that draw guests who are not even staying the night. Book treatments ahead, as the best rooms and times go quickly.

Guerlain Spa at Raffles London at The OWO

Whitehall · the grandest new spa in the city

Inside the restored Old War Office, this is the most talked-about spa in London. It spreads over four floors and 27,000 square feet, with a 20-metre pool, a vitality pool, sauna, steam room and treatment suites with their own showers and soaking tubs. Guerlain treatments start around £100 (about $135), and half-day experiences begin near £400 (about $535). If you want the full sense of occasion, this is it.

The Spa at Four Seasons Hotel London at Tower Bridge

Tower Bridge · gold walls and a river-view pool

A favorite with American visitors for good reason: the Four Seasons name, a 46-foot lap pool, real gold on the walls, a hammam suite and sound-therapy pods for deep rest. Day passes start around £160 (about $215), with a full-day facilities pass and a semi-private pod from about £195 (about $260). Polished, calm and beautifully run.

The Spa at Four Seasons Hotel London at Park Lane

Mayfair · a rooftop spa over Hyde Park

On the tenth floor with panoramic views over Hyde Park, this rooftop spa is a rare thing in London. It has a vitality pool, sauna, steam room and relaxation pods, with signature massages and facials. Packages start around £175 (about $235), and the Rise and Relax package is near £270 (about $360). Come for the light and the view as much as the treatment.

Biome at Corinthia London

Whitehall · three floors of hydrotherapy

One of the largest and most complete spas in the city, spread over three floors near Trafalgar Square, with heated loungers, an amphitheatre sauna, a cold plunge pool, a swimming pool, a jacuzzi and sleep pods. Packages start around £375 (about $500). This is the choice for anyone who loves a long thermal circuit, not just a single treatment.

The Lanesborough Club and Spa

Hyde Park Corner · a subterranean sanctuary

An award-winning spa beneath one of London’s grandest hotels, with a hydro pool, saunas, steam rooms and a wellness-led food and drink menu. Spa days start around £335 (about $450), rising to the No. 1 Hyde Park spa day near £665 (about $890) for those who want the very top of the range.

Claridge’s Spa

Mayfair · an art-deco icon

The spa at Claridge’s is a subterranean retreat with a relaxation pool, steam rooms, saunas and seven private treatment rooms, all in the hotel’s signature art-deco style. Treatments start around £95 (about $130), with signature rituals such as the Bamboo and Silk Ritual near £330 (about $440). A classic London name at a surprisingly gentle entry price.

The Ned’s Club Spa

City of London · a former bank turned playground

Set in a grand former bank, The Ned is one of the most photographed hotels in London, and its basement spa has a 20-metre pool and a full treatment menu. Spa day passes run around £200 (about $270) on weekdays and £350 (about $470) at weekends. Lively, glamorous and central.

Akasha Spa at Hotel Cafe Royal

Soho · a holistic wellbeing club

Just off Regent Street, Akasha is a holistic spa and wellbeing club with a jacuzzi, sauna and steam room, built around four elements: earth, water, fire and air. A good pick if you want somewhere calm and design-led in the very center of the West End.

Browse London spa days and wellness experiencesCompare London spa hotels on Booking.com

Best Day Spas and Value Spa Days

You do not need a five-star room or a five-star budget. These spas welcome day guests and give you the pool and thermal rooms without the top-tier price.

• St Pancras Spa (King’s Cross): a beautiful Victorian-inspired spa inside the St Pancras Renaissance hotel, with a relaxation pool, sauna, steam room and treatments drawn from global rituals. Spa days start around £120 (about $160), some of the best value in central London.
• The Spa at Chelsea Harbour Hotel (Chelsea): a riverside thermal spa where a spa day pairs a treatment with access to the facilities and, on many packages, afternoon tea. A relaxed, slightly out-of-the-way option away from the crowds.
• Sensory Wellbeing at Pan Pacific London (Liverpool Street): a whole floor of wellness with an indoor infinity pool, steam rooms and sauna. Treatments start around £180 (about $240). Modern, sleek and handy for the City.
• Rena Spa (Tower Hill, Aldgate and Holborn): the spas at the Leonardo Royal and NYX hotels offer real pools (an 18-metre pool at Tower Hill, a 13-metre Greco-Roman pool in Holborn), sauna and steam room at accessible day-guest prices.
• Euphoria Spa (City of London): a compact urban spa on Cornhill with experience showers, hot tubs, saunas, steam rooms and a traditional Rasul mud treatment. A quick reset in the heart of the Square Mile.
• BOKEH by Montcalm East (Shoreditch): a stylish spa in trendy Hoxton with a swimming pool, jacuzzi, sauna, steam room and a chill room. A good match for a younger, East London day out.

Thermal Spas and Hydrotherapy Circuits

If your idea of a spa day is less about a single treatment and more about drifting between pools, saunas and steam rooms, look for spas with a full thermal circuit. The strongest in London are Biome at Corinthia, the Guerlain Spa at Raffles London, the pool and hammam at Four Seasons Tower Bridge, the hydrotherapy pool at St Pancras and the infinity pool at Pan Pacific. Many hotel spas let day guests use the thermal facilities for a set time alongside a treatment, so ask what is included when you book, and arrive early to make the most of it.

What a London Spa Day Costs

Prices below are indicative starting points at the time of writing and change with the season, the day of the week and demand. Dollar figures use a rate of about $1.34 to the pound; check the live rate before you travel. Weekends and afternoons cost more than weekday mornings almost everywhere.

How to Plan and Book Your Spa Day

• Book ahead, especially for the flagships. The Guerlain Spa, Four Seasons and Corinthia sell their best times and rooms out days in advance, more so at weekends.
• Choose a weekday morning for value. Prices are lower and the pools are quieter than on a Saturday afternoon.
• Ask what the day pass includes. Some prices cover a treatment plus thermal facilities for the day; others charge separately. Confirm the pool, sauna and steam-room access before you pay.
• Arrive early. Get there thirty to sixty minutes before your treatment to use the facilities. That relaxed hour is half the point.
• Bring or rent the basics. Robes, slippers and towels are provided at hotel spas, but bring a swimsuit for the pool. Leave valuables at your hotel.
• Pair it with afternoon tea. Several spas sit inside hotels famous for their tea service, so a spa and afternoon tea in London make a perfect, unhurried day.
• Arrive relaxed. Many visitors book a private chauffeur to reach the spa or come straight from the airport without the stress of the Tube. Our sister company Chauffeurz runs fixed-rate transfers across London, so you step out of the car ready to unwind.

Keep Exploring London

The Bottom Line

London does the hotel spa better than almost anywhere. For the grandest day out, book the Guerlain Spa at Raffles London, Four Seasons Tower Bridge or Biome at Corinthia. For a memorable day at a gentler price, The Ned, St Pancras or Chelsea Harbour deliver the pool, the thermal rooms and the treatment without the top-tier bill. Book ahead, pick a weekday morning if you can, and give yourself the whole day. Your feet, your shoulders and your body clock will thank you.

Frequently Asked Questions

What is the best spa in London?

For sheer luxury and scale, the Guerlain Spa at Raffles London at The OWO is the most impressive spa in the city, with a 20-metre pool and four floors of facilities. The gold-walled spa at Four Seasons Tower Bridge and Biome at Corinthia are close rivals. The best one for you depends on your budget and whether you want a single treatment or a full thermal circuit.

How much does a spa day in London cost?

A single treatment at a five-star hotel spa starts around £95 to £180 (about $130 to $240). A day pass with pool and thermal facilities runs around £120 to £200 (about $160 to $270), and a full luxury spa day package can reach £400 to £665 (about $535 to $890). Weekday mornings are the best value.

Can you visit a hotel spa in London without staying the night?

Yes. Most of London’s hotel spas welcome day guests through spa days and day passes, which usually include a treatment plus use of the pool, sauna and steam room for a set time. The Ned, St Pancras, Chelsea Harbour and the Four Seasons spas all take non-residents. Book ahead, as day-guest places are limited.

Which London spas have a swimming pool and thermal facilities?

For a full thermal circuit, look at Biome at Corinthia, the Guerlain Spa at Raffles London, Four Seasons Tower Bridge, St Pancras Spa and Pan Pacific London, all of which have pools plus saunas and steam rooms. Rena Spa and BOKEH also offer real pools at more accessible prices.

Do you tip at a spa in London?

Tipping is far lighter than in the United States. A service charge is often already included, and a tip of around 10 percent for an excellent treatment is welcome but never expected. There is no need to add a 20 percent gratuity as you might at home.

What should I bring to a London spa?

Robes, slippers and towels are provided at hotel spas, so bring only a swimsuit for the pool and leave valuables at your hotel. Arrive thirty to sixty minutes early to enjoy the facilities before your treatment, and allow time to relax afterwards rather than rushing back out into the city.

Are London spas good for couples?

Very. Many spas offer couples’ treatment rooms and shared relaxation areas, and a spa afternoon makes a quiet, unhurried date away from the crowds. Pairing a spa with afternoon tea at the same hotel is a popular way to turn it into a full day together.

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