How much is a flight from Boston to San Francisco?

There’s no fixed price — fares between Boston and San Francisco can vary a lot by day or time.

Pick a travel date to see today’s available fares.

Flying during the week can be more affordable, as weekend flights tend to be pricier. Also consider demand and availability: the last remaining seats often come at higher fares!

Are there multiple airports in Boston and San Francisco?

If your departure or arrival city has more than one airport, it's worth comparing all of them for timing and pricing.

• Airports in Boston: Only Boston - Logan operates in this city.
• Airports in San Francisco: San Francisco is the only airport currently running.

If you're traveling with a group or bulky luggage, look into parking or transport options. Alternative airports may offer faster transfers or better rates.

Adjust your flight filters for Boston – San Francisco

Jetcost gives you tools to search smarter. Pick your ideal price range, airline, departure time, and flight type — then compare offers from the best travel agencies and carriers.

Other popular destinations

Planning a trip to United States? These cities are popular too: Las Vegas, Los Angeles, Miami, New York City, Orlando.

Sorting options let you see the most affordable flights first. Some results may include extra fees shown only at checkout — always read carefully to see what’s included.