Start with these decisions
Choose a place to stay, work out the route from San Francisco International Airport (SFO), and list the sights you actually want to see. Union Square is a practical base for keeping daily transfers short.
When to go
The comfortable windows are Sep-Nov. Look up local events, hotel prices, and any timed-entry requirements before you commit to dates.
Budget planning
Plan for about USD 200-400/day at a mid-range level, flights excluded. The final number depends on your hotel, how you get around, and how many paid attractions you fit into a day.
Compare stay areas
Look at Union Square, Embarcadero, Mission, Nob Hill. Test each against your airport route, the sights on your list, your evening plans, and the hotel price.
Frequently asked questions
How many days do I need in San Francisco?
3-5 days is the practical range for a first visit. With less time, stay near Union Square. With more, add a quieter neighbourhood or a day trip.
Where should first-timers start looking in San Francisco?
Start with Union Square, then confirm your hotel lines up with your airport route and the sights you plan to visit each day.