Hilton San Francisco Union Square
333 O'Farrell Street, San Francisco
Checking price…
Pool on site
Cool off without leaving.
Guests loved it
Great staff
Popular amenities
About Hilton San Francisco Union Square
Modern Rooms and Amenities
The Hilton San Francisco Union Square offers modern rooms equipped with a flat-screen HDTV, coffee machine, and luxurious Crabtree & Evelyn bathroom amenities. Enjoy the convenience of an alarm clock with MP3 player connection for personalized entertainment.
Health Club and Dining Options
Indulge in the 2,800 square-foot health club and outdoor whirlpool for relaxation. Experience a culinary delight at Urban Tavern with its extensive dinner menu in an artistic setting. Unwind at the lounge area offering a selection of sophisticated snacks and drinks.
Prime Location and Special Offer
Good to know about Hilton San Francisco Union Square
Check-in
03:00 PM
Check-out
11:00 AM
Pets
Allowed
Children
Welcome
How Hilton San Francisco Union Square's price works
One flat fee
The price is what the hotel charges us plus one small, flat service fee — the same for every guest.
No surveillance pricing
We never use your device, location or browsing history to decide what you pay.
All-in, no surprises
Taxes and known fees are shown up front. What you see is what you book.
Hilton San Francisco Union Square reviews
Good
2,014 reviews · updated January 2026
Guests loved
- + Great staff
- + Excellent location
- + Comfortable rooms
Worth noting
- – Cleanliness issues
- – High food prices
- – Parking costs
Things to do near Hilton San Francisco Union Square
333 O'Farrell Street, San Francisco
Open in Google Maps ↗Hilton San Francisco Union Square property amenities
Internet
- WiFi available
Parking & transportation
- Parking
- Private parking
- Accessible parking
- Parking garage
Pools, spa & fitness
- Fitness facilities
- Fitness center
- Swimming pool
- Hot tub/Jacuzzi
- Outdoor pool
Food & drink
- Restaurant
- Bar
Family
- Family rooms
Accessibility
- Facilities for disabled guests
- Wheelchair accessible
Services & conveniences
- 24-hour front desk
- Lift / Elevator
- Laundry
- Luggage storage
- Safety deposit box
- Fax/photocopying
- Tour desk
- Dry cleaning
- Currency exchange
- Daily housekeeping
- Concierge service
- ATM/cash machine on site
Climate & comfort
- Non-smoking rooms
- Air conditioning
- Heating
- Non-smoking throughout
- Designated smoking area
More
- Business center
- Pets allowed
- Express check-in/check-out
- Ironing service
- Meeting/banquet facilities
- Car hire
- Minimarket on site
- Allergy-free room
Hilton San Francisco Union Square room amenities
Bedroom
- Safety deposit box
- Hypo-allergenic bedding available
Bathroom
- Hair dryer
- Private bathroom
- Designer toiletries
Entertainment
- TV
- Radio
- Video
- Satellite channels
Food & drink
- Coffee/tea maker
- Refrigerator
Internet & phone
- Telephone
Comfort
- Air conditioning
- Heating
More
- Desk
- Seating Area
- Alarm clock
- Smoke alarm
- Interconnected room(s) available
- Daily housekeeping
- Wheelchair accessible
Frequently asked questions about Hilton San Francisco Union Square
What are the check-in and check-out times at Hilton San Francisco Union Square?
Check-in starts at 03:00 PM and check-out is by 11:00 AM.
Does Hilton San Francisco Union Square have WiFi?
WiFi is available at Hilton San Francisco Union Square. Check your room's details for whether it's free or carries a charge.
Is parking available at Hilton San Francisco Union Square?
Yes, parking is available at Hilton San Francisco Union Square. A fee may apply — see the property's important information.
Does Hilton San Francisco Union Square have a pool?
Yes — Hilton San Francisco Union Square has a swimming pool.
Is there a gym at Hilton San Francisco Union Square?
Yes, Hilton San Francisco Union Square has fitness facilities.
Does Hilton San Francisco Union Square have a restaurant?
Yes, there is on-site dining at Hilton San Francisco Union Square. There's also a bar or lounge.
Do the rooms at Hilton San Francisco Union Square have air conditioning?
Yes, rooms at Hilton San Francisco Union Square have air conditioning.
Is Hilton San Francisco Union Square wheelchair accessible?
Hilton San Francisco Union Square offers facilities for guests with disabilities. Contact the property to confirm the specifics for your needs.
Is Hilton San Francisco Union Square pet-friendly?
Yes, pets are allowed at Hilton San Francisco Union Square.
Is Hilton San Francisco Union Square family-friendly?
Yes, Hilton San Francisco Union Square welcomes families.
Is Hilton San Francisco Union Square non-smoking?
Yes, Hilton San Francisco Union Square is non-smoking throughout.
How far is Hilton San Francisco Union Square from Honolulu airport (HNL)?
It's about 2398 mi (straight-line) from Honolulu airport (HNL).
What's the closest beach to Hilton San Francisco Union Square?
The nearest is Lanikai Beach, about 2384 mi away (straight-line).
What is the cancellation policy at Hilton San Francisco Union Square?
It depends on the rate you pick — many rooms at Hilton San Francisco Union Square offer free cancellation. You'll see each room's exact policy before you book.
Are there extra fees at Hilton San Francisco Union Square?
Any mandatory property fees are shown in your all-in total before you book — no surprises at checkout.
What guest services does Hilton San Francisco Union Square offer?
Hilton San Francisco Union Square offers services such as concierge, laundry, luggage storage.
Is Hilton San Francisco Union Square a good place to stay?
Guests rate it 7.8/10 (Good) across 2,014 reviews.
How does pricing work at Hilton San Francisco Union Square on travelpluscost?
One honest price: what the hotel charges us plus one small flat fee — the same for everyone, never based on your data. No hidden markup and no fake discounts.
Hilton San Francisco Union Square policies
Pets
Pets are allowed on request. Charges may be applicable.
Children and extra bed policy
Children of any age are allowed. Children up to and including 17 years old stay for free when using an existing bed. You haven't added any cots. You haven't added any extra beds.
Groups
When booking more than 9 rooms, different policies and additional supplements may apply.
Internet
WiFi is available in all areas and costs USD 12.95 per 24 hours.
Parking
Private parking is possible on site (reservation is not needed) and costs USD 74.10 per day.
You need to know about Hilton San Francisco Union Square
Please note: There is a per night incidental charge that is refundable after inspection. Due to fire code policies, 1 extra bed/baby cot is only available in 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. If a guest books a room that offers a breakfast-included rate, this room will provide breakfast for 2 guests. All additional guests will be charged. Guests must join the Hilton Honors loyalty program in order to receive free WiFi.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. A deposit may be required at the property.
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