The Westin St. Francis > SFO > 335 Powell St > San Francisco > CA > 94102>>The preferred airport for The Westin St. Francis is San Francisco, CA (SFO San Francisco Intl.) 19.2 km / 11.9 mi. Distances are calculated in a straight line from the property’s location to the point of interest or airport and may not reflect actual travel distance. Distances are displayed to the nearest 0. 1 mile and kilometre.