Cheap flights from San Francisco from $39

Our data suggests that currently, the cheapest flights from San Francisco are being offered by Frontier, American Airlines, and Alaska Airlines. For example, Frontier flights from San Francisco to San Bernardino, start at $19, American Airlines flights from San Francisco to San Diego cost around $28, and Alaska Airlines flights from San Francisco to Burbank are around $33.

Currently, the cheapest flight from San Francisco found by our users is for $22 to Vancouver Intl Airport. Prices will vary according to several factors such as the departure date and time, but on average you can expect to pay around $846 to travel from San Francisco to Vancouver Intl Airport.

Los Angeles, New York and New York John F Kennedy Intl Airport are currently the destinations served most frequently from San Francisco, with 139, 117 and 81 flights per day on average, respectively.

Airlines including American Airlines, Air Canada and United Airlines frequently fly from San Francisco. You can view other airlines by performing a quick search in the form above.

If you are looking for a cheap first class flight, consider flights to San Diego, for which the starting price of a first class seat can be as low as $173.

Prices for flights from San Francisco Airport refresh daily.

The number of operators available for flights from San Francisco Airport is 91 as of September 2025.

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Francisco Airport.

The necessary travel and health documents for your San Francisco Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.