Choose your preferred language. We speak English and 41 other languages.
Most often used by people in the United States
Hilton San Francisco Union Square
333 O'Farrell Street, Union Square, San Francisco, CA 94102 – Show map
After booking, all of the property’s details, including telephone and email address, are provided in your booking confirmation and your account.
Get instant confirmation with FREE cancellation on most rooms!
The most recent booking for this hotel was made on Aug 28 at 3:08 AM from Peru.
6 Reasons to Choose Hilton San Francisco Union Square
No booking fees • Save money! Best price guarantee — enter dates to see these prices!
362 properties in San Francisco
Including hotels, apartments, villas and more.
1470 verified reviews
We speak your language
Hilton San Francisco Union Square's staff speak: Chinese, Ukrainian, Russian, Portuguese, Japanese, Italian, Hungarian, French, Spanish, English, German, Arabic
Booking is safe
When you book with us your details are protected by a secure connection.
Outdoor Pool (all year)
Golf Course (within 2 miles), Fitness Center, Hot Tub
Food & Drink
WiFi is available in public areas and costs USD 5.99 per hour.
WiFi is available in the hotel rooms and costs USD 12.99 per 24 hours.
Wired internet is available in the hotel rooms and costs USD 12.99 per 24 hours.
Public parking is available on site (reservation is not needed) and costs USD 53.58 per day.
Private parking is available on site (reservation is not needed) and costs USD 59.28 per day.
Room Service, Car Rental, 24-Hour Front Desk, Express Check-in/Check-out, Currency Exchange, Tour Desk, ATM on site, Laundry, Dry Cleaning, Meeting/Banquet Facilities, Business Center, Souvenir/Gift Shop
Newspapers, Safe, Shops (on site), Non-smoking Rooms, Facilities for Disabled Guests, Family Rooms, Elevator, Heating, Designated Smoking Area
Chinese, Ukrainian, Russian, Portuguese, Japanese, Italian, Hungarian, French, Spanish, English, German, Arabic
3:00 PM - 11:00 PM
Until 12:00 PM
Cancellation and prepayment policies vary according to room type. Please enter the dates of your stay and check what conditions apply to your preferred room.
Children and Extra Beds
All children are welcome.
Free! All children under 18 years stay free of charge when using existing beds.
Any additional older children or adults are charged USD 20 per person per night when using existing beds.
Free! One child under 2 years stays free of charge in a crib.
There is no capacity for extra beds in the room.
The maximum number of cribs in a room is 1.
The maximum number of total guests in a room is 4.
Any type of extra bed or crib is upon request and needs to be confirmed by management.
Additional fees are not calculated automatically in the total cost and will have to be paid for separately during your stay.
Pets are allowed. Charges may apply.
When booking more than 10 rooms, different policies and additional supplements may apply.
Cards accepted at this property
Hilton San Francisco Union Square accepts these cards and reserves the right to pre-authorize your card prior to arrival.
You must show a valid photo ID and a credit card upon check-in. Special requests cannot be guaranteed and are subject to availability upon check-in. Additional charges may apply.
Please note: Due to fire code policies, 1 extra bed/crib is only available in the King Rooms. Any type of crib or extra bed needs to be requested from Hilton San Francisco Union Square.
Pets up to 34 kg (75 lbs) are permitted, and charges are applicable. Please notify Hilton San Francisco Union Square if you have further pet questions.
The Breakfast Rate includes breakfast for only 2 (two) guests daily per the room type at the hotel restaurant, Urban Tavern. Breakfast is available for any other guests for an additional fee.
Guests are required to show a photo ID and credit card upon check-in. Please note that all Special Requests are subject to availability and additional charges may apply.
Based on 1470 reviews
Show reviews from:
Popular Hotels in San Francisco
This downtown San Francisco hotel is a block from Union Square and the Hallidie Plaza, which features a cable car stop. The hotel provides massage services and a tour desk.
Score from 1925 reviews Very good 8.2/10
Situated next to the the Moscone Convention Center, this downtown San Francisco hotel offers luxurious rooms with a flat-screen TV. Facilities include an indoor pool, a gym, and a hot tub.
Score from 1268 reviews Very good 8.4/10
This eco-friendly restored landmark hotel is in downtown San Francisco, 2 blocks from shopping at Union Square. It features a 24-hour gym, on-site dining and colorful air-conditioned rooms.
Score from 512 reviews Very good 8.1/10
This San Francisco hotel features an on-site restaurant and warmly decorated rooms with a 42-inch flat-screen TV and a CD player. The Golden Gate Bridge is just 6 miles away.
Score from 1155 reviews Very good 8.4/10
the staff was really helpful and informed and the view was pretty amazing. Also the location was amazing.
there were no extras in the minibar or in the room (ex. blankets ecc..) and the in-room dining was very expensive for a low quality of food. Also the breakfast was extremely disappointing with the same things every day, including the cardboard potatoes they serve every day.
Excellent location near to everything. Room is clean and staff are friendly and helpful.
Loved the king suite room we had. Very friendly check in and check out clerk. Plenty of shops and restaurants in close vicinity of the hotel
Noisy at night. Not very sound proof. Close to the "bad part of town" with many homeless people :(
Loved the beds, the WiFi and the staff. Location was very convenient as well.
No in room servi-bar, meaning no fridge to keep my own snacks, such as ice cream and cheese, and my bottled water cold. I had to make three trips per day to the ice machine with convenience store bags to collect ice. I turned the bathtub into a fridge with bags of ice.
The Friendly courteous and helpful staff.
the early closing of Starbucks.
We paid a little extra for a room with a view and it was totally worth the extra money. The breakfast buffet was very nice.
You should know this is a big conference hotel. The lobby was very crowded with conference-goers when we were there. This didn't bother me at all but some guests might want a quieter hotel.
location, lobby, parking
Service Location Facilities
Staff are all to busy to be bothered with you had 5 bags and no one helped me when I checked in or out and very rude to me too ....hotel needs to revamped
It has a nice location everything around you
Location is excellent Rooms are reasonable sized and have modern comfort
Service is very inflexible, no check-in before 15.00, not even registration, Extremely noisy and chaotic lobby It is a very large and rather impersonal hotel You have to pay for internet access to your room, which is both expensive and slow.
it is convenient location.
Too Crowded and disorganized. Too many beggers and homeless people out side of the entry to the Hotel.
Renovated room was great, very modern and spacious, even had a full couch inside. New bathroom was nice and clean. Beds were all comfortable. Staff was very approachable and helpful.
Non-renovated room was very old feeling, lots of wooden furniture, handle on the door broke off, space was very cramped.
The breakfast organisation is very bad. Long line, very crowded, Unfriendly stuff. So expensive for the services.
Even though I had confirmed my reservation for 2 double beds earlier the day if my arrival, there was "none available", and I had to wait over 30 minutes for my guaranteed reservation.
Most of the staff want tip to do tgeir work
Location provided access to all we wished to see.
San Francisco's beggars are "in your face" and cannot be justified.
No free wifi available in the rooms. You had to pay extra for each day.
Location, Pool open early,
Long wait to check in, Very business orientated, Staff did not go out of their way to assist, Ridiculous queues and wait for breakfast or Starbucks, Have to pay for wifi in rooms, Lots of homeless people pestering you as you leave hotel, Expensive for what it is,
location and all facilities
we had problem with thumping noise from ceiling above as if there was a gym above us- we informed on checkout but they did not know cause-no gym they said - may have been a family staying above or they suggested it may have been vibration from connecting walk bridge but that was not above us - except for this all else was good.
Great to have an outdoor pool. Hilton is a little formulaic but you know what you are getting. It's a little like McDonalds.
Staff were very attentive to our children, the pool was a welcome extra at the end of a long day of sightseeing.
Could you think about the long queues for breakfast, both at the restaurant and cafe.
Location Comfort Views
Busy Two blocks from Union Square
We've negotiated with thousands of hotels to get the very best deals. We call them Secret Deals and they only last for a limited time.
You can get these deals for free by subscribing to our newsletters. You can even choose your favorite destinations to receive personalized deals.
Get started now by entering your email address. We'll instantly send you a link to our Deal Finder!
Don't worry – your email address is safe with us. We'll never share your private information and you can unsubscribe at any time.