The Westin St. Francis San Francisco On Union Square
San Francisco,
$574cheapest 2 nights from Oct 23, 2026−40%
Open in Citi Travel ↗Loading prices…The Westin St. Francis San Francisco On Union Square — cheapest Citi Travel prices
The Westin St. Francis San Francisco On Union Square is a Other hotel in San Francisco, . The cheapest 2-night stay tracked here is $574 for check-in Oct 23, 2026, about 40% below this hotel’s typical rate.
Across 332 tracked stay dates over the coming months, 2-night totals range from $574 to $3,133.
It books through Citi Reserve on Citi Travel, with a 2-night minimum stay.