Open Travel Guide
  1. Home
  2. Destinations
  3. United States
  4. California
  5. San Francisco
  6. Wellness
  7. Spa at Fairmont Sonoma Mission Inn

Wellness · California, San Francisco

Spa at Fairmont Sonoma Mission Inn

  • PriceMassages from about $200
  • AmbienceUpscale, tranquil wine-country resort spa

The Spa at Fairmont Sonoma Mission Inn is a resort spa at 100 Boyes Boulevard in Sonoma, in California's Sonoma Valley, about 45 miles north of San Francisco. The setting is a wine-country resort whose spa draws on the area's geothermal springs, with thermal pools and treatment rooms on the grounds of the historic inn.

Resort spa in Sonoma Valley with thermal pools and massage, about 45 miles north of San Francisco.

The Spa at Fairmont Sonoma Mission Inn is a resort spa at 100 Boyes Boulevard in Sonoma, in California's Sonoma Valley, about 45 miles north of San Francisco. The setting is a wine-country resort whose spa draws on the area's geothermal springs, with thermal pools and treatment rooms on the grounds of the historic inn. The spa's best-known feature is its thermal mineral water, which feeds the spa's pools, and its listed offerings include thermal pools, massage and facials, with massages starting at about $200 (USD). Hotel and resort spas in this category typically employ licensed massage therapists and estheticians, and the property's reputation rests on its long history as a Sonoma Valley spa destination and its geothermal water source. Facilities centre on the thermal pools, treatment rooms and relaxation areas, and as a resort the property offers overnight accommodation, making it suitable for a full retreat rather than just a single appointment. Visitors should confirm with the resort what facility access comes with a treatment, as policies for outside guests can differ from those for hotel guests. Booking norms favour reservations: treatments should be booked ahead, especially on weekends and in the autumn harvest season, and the menu is chosen at booking. Arriving early lets visitors use the pools and relaxation spaces before the appointment. The drive from San Francisco takes about an hour to an hour and a half via Highway 101 and Highway 37, depending on traffic, and the property sits just outside the centre of Sonoma. The historic Sonoma Plaza, local wineries and restaurants are a short drive away, so a spa visit often combines with a day of tasting in Sonoma Valley. Visitors can expect a quiet, upscale atmosphere and prices in line with other luxury resort spas in Northern California.

Practical information for Spa at Fairmont Sonoma Mission Inn · Last updated September 2026
Price Massages from about $200
Address 100 Boyes Blvd, Sonoma, CA 95476

Treatments

  • Thermal pools
  • Massage
  • Facials

Location

100 Boyes Blvd, Sonoma, CA 95476

38.3203, -122.4829 View on map

Highlights

  • Thermal mineral pools in Sonoma Valley
  • Massage and facial treatments in a resort setting
  • Overnight stay possible at the historic inn
  • About 45 miles from San Francisco

Tips for visiting

  • Book ahead, especially weekends and harvest season.
  • Confirm what pool and facility access comes with a treatment.
  • Arrive early to use the relaxation areas before the appointment.
  • Tipping is customary in the US, commonly 18-20%.
  • Allow 1-1.5 hours of driving from San Francisco.
  • Combine with Sonoma Plaza and local wineries nearby.

When to visit

Weekdays and cooler months are quieter and suit thermal pools well. Harvest weekends are busiest.

Accessibility

Resort facilities are often step-free in main areas, but visitors should confirm access to pools and treatment rooms with the resort.

Frequently asked questions

Where is the spa?

It is at 100 Boyes Boulevard in Sonoma, about 45 miles north of San Francisco.

How much does a massage cost?

Massages start at about $200 (USD).

Does the spa have thermal pools?

Yes. Thermal pools are among its listed features; visitors should confirm access for non-guests.