Cheap flights from Boston to San Francisco from $152

Currently, January is the cheapest month in which you can book a flight from Boston to San Francisco (average of $879). Flying from Boston to San Francisco in December is currently the most expensive (average of $1,232). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

• Can I find flights from Boston to San Francisco for under $400 on Cheapflights?

  Yes, there are multiple flights from Boston to San Francisco for under $400. The cheapest flight booked recently is on Delta for just $330, but on average you can expect to pay $383.

• Are there direct flights from Boston to San Francisco for under $400 on Cheapflights?

  Cheapflights has 20 direct flights from Boston to San Francisco under $400. A good price for a direct flight from Boston to San Francisco is less than $398.

• Are there last-minute flights available from Boston to San Francisco for under $500?

  There are currently 20+ open flights from Boston to San Francisco within the next 7 days for less than $500.

• What days are direct flights available from Boston to San Francisco?

  Days when direct flights are available for this flight are: Sunday, Monday, Tuesday, Thursday, Friday, Saturday.

• How popular is this Boston to San Francisco flight route?

  Flights from Boston Logan Intl to San Francisco have been viewed 39 times in the past calendar month.

• How many flights depart from Boston to San Francisco on average per day?

  Travellers can expect 14 flights from Boston to San Francisco on average per day.
  Morning (6am - Noon) - 43% of flight departures
  Evening (6pm - Midnight) - 57% of flight departures

• How long is the flight from Boston to San Francisco?

  Departing from Boston to San Francisco will take you 6h 35m. The distance between Boston and San Francisco is about 4365 km. Most flights are nonstop.

• What are the cheapest airlines flying from Boston to San Francisco round-trip?

  Cheapflights users have booked flights from Boston to San Francisco round-trip from $330. Other airlines that can offer you cheap pricing are JetBlue, from $357, and Alaska Airlines, from $374. These flights start at 41% lower than the current average price 3 months from now.

• What are the cheapest airlines to fly from Boston to San Francisco one-way?

  $152 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on Delta and Alaska Airlines, with prices starting from $160 and $179, respectively.

• What are the most reliable airlines from Boston to San Francisco?

  The top 3 most reliable airlines when flying from Boston to San Francisco are ANA (100%), Air China (94%) and Qantas Airways (80%).

• What are the cheapest flights from Boston to San Francisco?

  While on average a flight from Boston to San Francisco is generally $934, our data shows the cheapest flight currently is $175. When looking at the most popular route, (Boston Logan Intl - San Francisco), you can expect to pay $522 for that flight.

• What does BOS to SFO mean?

  This is defined as Boston Logan Intl Airport (BOS) and San Francisco Airport (SFO). Codes like San Francisco Airport are often used to just call airports uniquely.

• Can I find deals for flights from Boston to San Francisco that include extra baggage allowance?

  The amount of baggage you can bring on your Boston to San Francisco flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

• Can I find deals on flights from Boston to San Francisco with specific airlines?

  Yes, Cheapflights allows you to browse and filter Boston to San Francisco flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

• Can I find deals for flights from Boston to San Francisco that include hotel bookings?

  Yes. In addition to deals on Boston to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.

• How can I find direct flights from Boston to San Francisco?

  After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to San Francisco.

• Can I find deals for business class flights from Boston to San Francisco?

  Yes. Cheapflights offers flight deals from Boston to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

• Can I find deals for flights from Boston to San Francisco that allow pets onboard?

  Many airlines flying from Boston to San Francisco offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

• Can I find deals on last-minute flights from Boston to San Francisco?

  Yes, you can often find last-minute deals on Boston to San Francisco flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

• How recently were the Boston to San Francisco flight deals updated?

  The Boston to San Francisco flight deals you see on this page were last updated on 8/5.