Flights

Flights from Boston to San Francisco

Fares we've seen from Boston (BOS) to San Francisco (SFO) start from US$115 on 12 Nov 2026 with Southwest. Prices come from partner searches in the last 48 hours and change quickly, so look before you book.

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Compare Boston to San Francisco on your dates and see current fares from our sources, listed by price.

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Fares by month

Month	Seen from	Date	Airline
October 2026	US$144	27 Oct 2026	JetBlue · 1 stop	Check now
November 2026	US$115	12 Nov 2026	Southwest · 1 stop	Check now
December 2026	US$177	21 Dec 2026	Southwest · 2 stops	Check now

One-way fares in US dollars, last seen on Aviasales. They can change at any time and may not be available on every day of the month. Partner links: we may earn a commission if you book, at no extra cost to you.

Airlines on this route

Airlines we've seen with fares on this route, listed by price:

Southwest: from US$115 (with a stop)
JetBlue: from US$144 (direct)
Alaska Airlines: from US$153 (with a stop)
United: from US$366 (direct)

Plan the rest of your trip to San Francisco

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Questions about Boston to San Francisco flights

How much do flights from Boston to San Francisco cost? Fares we've seen start from US$115 on 12 Nov 2026 with Southwest. Fares change quickly, so look before you book.

When can I save on flights from Boston to San Francisco? Among the next six months we checked, November 2026 had fares from US$115 in our data, while December 2026 reached US$177. Prices vary by date, so compare several days and save.

Which airlines fly from Boston to San Francisco? We've seen fares from Southwest, JetBlue, Alaska Airlines, United. This reflects recent searches, not a complete timetable.

Are there direct flights from Boston to San Francisco? Yes, we've seen direct fares (2 of 9 recent fares were direct). Availability depends on the date.

Is FindMyFlight free to use? Yes. We never add anything to the fare. If you book through a partner link we may earn a commission from the partner, at no extra cost to you.