515 Mason StSan Francisco, CA 94102 Phone: +1 415-771-8600Fax: +1 415-398-0267Toll Free: +800-228-9290 Hotel E-mailHotel Website Classification 8 Moderate Deluxe Commission Rooms Rates 10% 344 $436-$517 (USD) Hoteliers! Is your information accurate? Update Here JW Marriott San Francisco Union Square Location & Neighborhood One block W of Union Square - 14 MI, 20 min from San Francisco Intl airport.Nearest Cross Street: Mason StHotel Location: Beach