BOS - SFO
$277 - $403
|Popular in||December||High demand for flights, 20% potential price rise|
|Cheapest in||September||Best time to find cheap flights, 14% potential price drop|
|Round-trip from||$277||From Boston to San Francisco International|
|One-way from||$106||One-way flight from Boston to San Francisco International|
Leaving on a Tuesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 37% on the overall cost on flights from Boston to San Francisco International.
Users have found that booking a flight from Boston to San Francisco International at least 44 days early can save you up to 20% on average compared to booking a flight this week. If booking 44 days before your flight isn’t an option for you, users have found flights from Boston to San Francisco International for as little as $117 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $137 for flights departing within the next 3 days.
February can be a great time to fly to San Francisco International from Boston with a flight ticket averaging about $121. Cheapflights users have found deals in the month of February for as cheap as $61. The most expensive prices can be found in the month of April.
|Afternoon Noon to 6 PM||60% of BOS to SFO departures|
|Morning 6 AM to noon||26% of BOS to SFO departures|
|Evening 6 PM to midnight||13% of BOS to SFO departures|
|Early morning Midnight to 6 AM||1% of BOS to SFO departures|