We do not have enough data on this route to provide a reliable graph showing how many days before departure it is the best to book.
However, usually the closer it is to the departure, the more expensive the tickets are.
The most popular airlines on the route San Francisco Intl Airport - New York LaGuardia: Delta Airlines (DL), American Airlines (AA).
There is no direct flight on the route from San Francisco Intl Airport to New York LaGuardia
Il volo con scalo più breve dura 7h 51min.
San Francisco (CA) New York (NY)