Hilton San Francisco Union Square is at 333 O'Farrell Street, San Francisco. Guests rate it 7.8 out of 10 across 2,204 reviews. It is 0.2 miles from Union Square. Check-in is from 03:00 PM, check-out by 11:00 AM.





Checking live rooms and prices for your dates…
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 Conveniently located in downtown San Francisco, just a short walk from the Powell Street subway station, this Hilton is near popular attractions. Book now to take advantage of the $25 food and beverage credit, $25 Tower Tours credit, and Premium WiFi included in the mandatory Destination Fee.
Summarised from guest reviews. Scores out of 10.
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.
The cheapest month to stay at Hilton San Francisco Union Square is December 2026, averaging $236 a night; the most expensive is January 2027 at $426. On average it runs 11% below the San Francisco hotel average.
| Check-in month | Average per night | Average per night |
|---|---|---|
| October 2026 | $361 | |
| November 2026 | $292 | |
| December 2026Cheapest | $236 | |
| January 2027Most expensive | $426 | |
| February 2027 | $358 | |
| March 2027 | $359 | |
| April 2027 | $389 | |
| May 2027 | $306 | |
| June 2027 | $291 | |
| July 2027 | $242 | |
| August 2027 | $246 |
Average nightly room price at this hotel for each check-in date in the next 12 months, in US dollars, as quoted to Fly2Any on October 12, 2026. A planning guide, not a fare: search your dates for live prices.
Check-in at Hilton San Francisco Union Square is from 03:00 PM and check-out is by 11:00 AM.
Hilton San Francisco Union Square is 11.7 miles from San Francisco International Airport in a straight line; driving distance is longer.
Yes. Union Square is 0.2 miles from Hilton San Francisco Union Square in a straight line.
Guests rate Hilton San Francisco Union Square 7.8 out of 10 across 2,204 reviews. They most often mention great staff and excellent location.
Yes. Hilton San Francisco Union Square lists a pool among its amenities. Confirm details with the property for your dates.
Yes. Hilton San Francisco Union Square lists a fitness center among its amenities. Confirm details with the property for your dates.
The cheapest month to stay at Hilton San Francisco Union Square is December 2026, averaging $236 a night; the most expensive is January 2027 at $426. On average it runs 11% below the San Francisco hotel average.