Cheap flights from Boston to San Francisco (BOS - SFO)

Flight FAQs

From Boston to San Francisco

Are flight prices decreasing from Boston to San Francisco due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Boston and San Francisco for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from Boston to San Francisco for under $300 on Cheapflights?

Yes, there are multiple flights from Boston to San Francisco for under $300. The cheapest flight booked recently is on Multiple Airlines for just $210, but on average you can expect to pay $244.

Are there nonstop flights from Boston to San Francisco for under $300 on Cheapflights?

Cheapflights has at least 20 direct flights from Boston to San Francisco under $300. A good price for a nonstop flight from Boston to San Francisco is less than $337.

Are there last-minute flights available from Boston to San Francisco for under $400?

There are currently 3+ open flights from Boston to San Francisco within the next 7 days for less than $400.

What days are nonstop flights available from Boston to San Francisco?

Nonstop flights can be found on the following days: Tuesday, Saturday.

How popular is this flight route?

Flights from Boston Logan Intl to San Francisco have been viewed 263 times in the past calendar month.

What is the cheapest airline for this route?

United Air Lines Inc. offers the cheapest flights from Boston to San Francisco. Per day you can find on average 140 flights for this route and airline.

How long does the flight from Boston to San Francisco take?

A nonstop flight takes up to 7 hours, covering a distance of 1,685 miles.

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

On average, you can expect to see 8 flights from Boston Logan Intl to San Francisco a day.
Morning (6am - Noon) - 25% of flight departures
Afternoon (Noon - 6pm) - 38% of flight departures
Evening (6pm - Midnight) - 38% of flight departures

Does it rain more in Boston or San Francisco?

Expected rainfall in Boston is less than in San Francisco. You can expect this to be the case over the next 16 days.

Is Boston weather warmer or cooler than San Francisco?

Temperatures around the 84 °F's can be experienced in July. The weather in San Francisco is colder than in Boston. Plan for potential changes in flight availability as peak weather approaches in this location.