Cheap flights from Nantucket to San Francisco (ACK - SFO)

Departing on a Thursday is a good option for securing a great price. You can expect to save up to 137% when planning your travel around this day of the week.

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 35 days in advance, which can save you up to 7% on flights from Nantucket to San Francisco compared to booking the week you need them. Waiting 35 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $99. For sooner than that we have options available in the next 3 days from $105.

August can be a great time to fly to San Francisco from Nantucket with a flight ticket averaging about $108. Cheapflights users have found deals in the month of August for as cheap as $48. The most expensive prices can be found in the month of June.

When flying from Nantucket to San Francisco, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 2% versus a flight at noon.