$151 Cheap Flights to San Francisco

If you're eager to find cheap flights to San Francisco, consider traveling in the low season. Booking in advance may also save you money. Or, fly on a different day — flights on a Thursday are on average 16% cheaper than Sunday options.* Sign up to receive price alerts on the Expedia app and you'll be instantly notified when fares drop.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.

Secure the departure dates you want and a fare that fits your budget by booking your domestic flight to San Francisco up to 28 days in advance. Lock in tickets two to four months ahead if you're headed to San Francisco from an international destination.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.

You can usually get cheap flights to San Francisco on a Sunday. You'll save around 8% on average compared to those who book on a Friday, which is often the most expensive day to buy tickets.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.