Cheap flights from Boston, MA to San Francisco, CA

Flights starting at £70. Choose between United Airlines, JetBlue Airways, or Delta Air Lines to find the best price.

Make your travel wishlist, we'll do the rest
Hidden deals

Kiwi-Code uncovers prices airlines don't want you to see.

Effortless booking

Use our flexible filters to tailor your search.

Travel hacking

Look out for the travel hack star icon for even cheaper fares.

Tips to know when travelling to San Francisco

Round trips

Boston BOSSan Francisco SFO

Multiple carriers

£216

Updated:

One-way trips

Boston BOSSan Francisco SFO

United Airlines

£95

Updated:

4347 km
Distance
Duration
Mailbox
Receive exclusive deals by email

By subscribing you agree to receive offers according to the conditions described in our Privacy Policy.

Travelers usually depart from Logan International, Boston South Station, Boston, MA - Back Bay Station, or Boston, MA - North Station when they travel from Boston to San Francisco. Book your trip to arrive at San Francisco International, San Francisco, CA Bus Stop, San Francisco, CA - Salesforce Plaza, San Francisco, CA Train Station, or San Francisco, CA - Fisherman’s Wharf. The distance between Boston and San Francisco is 4347 km. The most popular airlines for this route are United Airlines, JetBlue Airways, Delta Air Lines, Alaska Airlines, and American Airlines. Boston and San Francisco have 221 direct flights per week. When you arrive at San Francisco, consider visiting Alcatraz, Big Sur, and Golden Gate Bridge.

Weekly direct flights

MondaysTuesdaysWednesdaysThursdaysFridaysSaturdaysSundays
Direct flights1010101011911
Fly direct with

Alaska Airlines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.

JetBlue Airways on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.

Delta Air Lines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.

United Airlines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.

Check-in for a flight from Boston to San Francisco

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
United AirlinesUALUAYesNo
JetBlue AirwaysJBUB6YesOpens 24 days before flight
Closes 2 hours before flight
Delta Air LinesDALDLYesOpens 24 days before flight
Closes 1 hours before flight
Alaska AirlinesASAASYesOpens 24 days before flight
Closes 1 hours before flight
American AirlinesAALAAYesNo

San Francisco travel tips

1) Visit de Young Art Museum in San Francisco for North and South American art

Currently, the de Young Art Museum is located in Golden Gate Park. The museum specializes in the arts of the Americas. Among the exhibits, you will see paintings, national costumes, arts, and crafts. The ticket price is $15 (€13), the museum is closed on Mondays.

2) Head to Silicon Valley from San Francisco

You can go to the IT specialists' mecca, Silicon Valley, on the CalTrain. The average cost of a trip to Palo Alto is $10 (€8.50). The train runs every 30 minutes on weekdays.

3) Taste craft beer in San Francisco pubs

If you love craft beer, then this city is a perfect match for you. San Francisco is bursting with microbreweries experimenting with different flavors and trendsetting beer culture across the states. You may want to have a beer at places like Cellarmaker Brewing Co, Mikkeller, or Church Key.

United States COVID-19 travel restrictions

Your trip summary

Most travelers from Boston, BOS can enter San Francisco, SFO.

Departure

Additional information
  • Masks are recommended in certain settings

Information is provided as guidance only and accurate at the time of publishing. Always check government websites and airline materials before booking and traveling.

Learn more about COVID-19 restrictions in United States in our dedicated Stories article.

Frequently asked questions

How long does it take to travel from Boston to San Francisco?
A one-way nonstop (direct) flight between Boston and San Francisco takes around 6.9 hours.
What is the flight distance between Boston and San Francisco?
The flight distance between Boston and San Francisco is 4347 km.
What airlines offer nonstop (direct) flights between Boston and San Francisco?
Several carriers operate flights between Boston and San Francisco. Airlines offering nonstop (direct) flights include Delta Air Lines, JetBlue Airways, Alaska Airlines, United Airlines.
What are the most popular routes to and from Boston?
Travelers frequently search for route combinations, such as Boston and London, Dublin, Edinburgh, Athens, Manchester, Vilnius, New Orleans, Orlando, Washington, D.C., Paris, New York, Atlanta, Raleigh, Chicago, Rome, Vienna, Miami, Glasgow, Las Vegas, Buffalo.
What are the most popular routes to and from San Francisco?
Travelers frequently search for route combinations, such as San Francisco and London, Dublin, Manchester, Manila, Athens, Tallinn, New Delhi, Las Vegas, Edinburgh, Denpasar, Bengaluru, Riga, Chennai, Atlanta, Bangkok, Washington, D.C., Hyderabad, Los Angeles, New York, Detroit.
What airports are near Boston?
The main airport in Boston is Logan International. It is also served by Logan International, Bradley International, Rhode Island T. F. Green Int'l Airport, Albany International, Portland International Jetport, Manchester–Boston Regional, Augusta State, Worcester Regional, Portsmouth International Airport at Pease, Rutland–Southern Vermont Regional.
What airports are near San Francisco?
The main airport in San Francisco is San Francisco International. It is also served by San Francisco International, Sacramento International, Oakland International, San Jose International, Stockton Metropolitan, Monterey Regional, Charles M. Schulz–Sonoma County, Merced Regional, Buchanan Field.
Is it possible to combine flights, buses, and trains in one itinerary when traveling between Boston and San Francisco?
Yes, it's possible to combine different modes of transport between Boston and San Francisco thanks to our Virtual Interlining technology. Making use of not only flights but also trains and buses between Boston and San Francisco can give rise to new adventures. Read more about how Virtual Interlining works on Kiwi.com Stories.
What is Virtual Interlining and how do I use it?
Virtual Interlining provides a revolutionary way of traveling. You can combine different modes of transport like flights, trains, and buses into one itinerary. And this often saves money. Thanks to the world's largest carrier database, the Kiwi.com search function enables anyone to mix and match different modes of transport easily.
Which airlines fly between Boston and San Francisco?
When's the best time to travel between Boston and San Francisco?
What flights operate between Boston and San Francisco?
How many airports are there near Boston?
How many airports are there near San Francisco?
What time do nonstop (direct) flights between Boston and San Francisco depart?
What time do nonstop (direct) flights between Boston and San Francisco arrive?
What time do flights between Boston and San Francisco depart?
What time do flights between Boston and San Francisco arrive?

Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.

Explore alternative trips

Flights from Boston

Flights to San Francisco

Popular routes

Airports near Boston

Airports near San Francisco

Find the best connection from Boston to San Francisco

Search, compare, and book flights, trains, or buses to get there.

Search flights, trains & buses

Kiwi.com: the best free travel app for Android and iPhone

Find out more about the Kiwi.com app on kiwi.com/mobile . With our app you can search for the best plane, train and bus connections. The Kiwi.com mobile app offers cheap flights, access to hidden features, travel hacks and special offers.

Search cheap flights

Simplified planning and booking

Travel deals built for you

Kiwi.com travel hacks


We hack the system,
you fly for less