Spas with reservation required in United States

A moderately priced medical and day spa in central Scottsdale, open daily except Monday, for adults only, with walk-ins welcome though reservations are

A reservation-only, adults-only hotel spa in Las Vegas open daily 10am-8pm, in the moderate price tier.

A San Mateo day spa with a hot tub, open daily 10am-9pm, taking both walk-ins and reservations for couples or solo visits.

A medical spa on San Antonio's Far West Side offering massage, facials, injectables and laser hair removal, open weekdays and Saturday mornings.

A budget-friendly day spa in Manhattan's Herald Square area, known for massage therapy, open daily from 10am to 10pm.

A moderately priced day spa in Willowbrook, Houston, open daily except Sunday with both walk-in and reservation options.

A Oak Creek, WI massage clinic and day spa with adults-only access, listed hours only on Sunday, and a moderate price tier.

A moderately priced day spa in Rose Park, Salt Lake City, open daily except Tuesday from 11 a.m. to 9 p.m., taking both walk-ins and reservations.

A reservation-only day spa in Blue Bell, just outside Philadelphia, with moderate pricing and adults-only access.

An appointment-only luxury day spa in Bartlett Station, Memphis, with service packages priced up to several thousand dollars.

Pure Serenity Spa is a moderate-priced day spa in Boulder open Sundays, with reservations recommended for couples or solo visits.

A moderately priced day spa in West Palm Beach's Palm Beach Lakes area, open daily except Sunday from 9am to 10pm.

A medical spa in Georgetown, Texas, open weekdays from 10am to 6pm, with walk-ins welcome though reservations are required for treatments.

A medical spa in central Scottsdale offering 32 treatments—facials, massage, Botox, and a bridal package—alongside a sauna, steam room and thermal pool.

Day spa in a Montebello strip mall plaza offering facials, massages and body treatments, open daily with walk-ins accepted.

A moderately priced fitness-club spa in downtown San Francisco offering bodywork, skincare and specialty treatments with reservations required.