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Departure·1 pax, Economy

Cheapest flights for Boston – San Francisco (BOS – SFO)

Aviasales.ge will find you the cheapest airfare for Boston – San Francisco by comparing the ticket prices to San Francisco using 45 agencies, five booking systems, and 728 airlines. Where exactly you buy your tickets for Boston – San Francisco is up to you.

Boston – San Francisco is most popular in September. During this period the average ticket price is 298.

Direct flight for from Boston to San Francisco

The easiest way to to get to your destination is a direct flight. Direct flights for from Boston to San Francisco are offered by:

  • United Airlines (daily UA366)
  • American Airlines (6 days per week, flight AA7569)
  • JetBlue Airways (5 days per week, flight B6233)
  • Alaska Airlines (3 days per week, flight AS249)
  • Delta Air Lines (3 days per week, flight DL362)

San Francisco is served by 1 airport: San Francisco International Airport. Direct flights for Boston – San Francisco are operated by:
  • Delta Air Lines, JetBlue Airways, Alaska Airlines, Southwest Airlines, United Airlines from Logan International Airport to San Francisco International Airport
Flight with layover for the route from Boston to San Francisco

An alternative option for Boston – San Francisco (round-trip) would be a flight with a layover. Prices start at 708.

The lowest prices for flights with layovers are offered by Southwest Airlines with a layover in Baltimore. Tickets start at 298.

A flight with a layover on the route Boston – San Francisco will allow you to make your trip more interesting. The layover could be in:

  • Dallas (flight AA2527 American Airlines)
  • Salt Lake City (flight DL464 Delta Air Lines)
  • Chicago (flight DL2646 Delta Air Lines)

This is a great chance to get to know these cities. Layovers are usually at least six hours.

Please keep in mind that depending on the number of days remaining until your departure, ticket prices for Boston – San Francisco could change by more than 129%.

Aviasales.ge suggests buying tickets for Boston – San Francisco in advance in order to choose the conditions for your flight that best suit your preferences and budget.

General information on flight Boston – San Francisco (BOS – SFO)
6 ⁠hr 28 ⁠min
Average flight duration
4,333 km
Distance
3 ⁠hr
Current time difference
90
Number of flights per week
₾258
Lowest price
₾0
Average ticket price
06:02
Earliest flight out
20:23
Latest flight out

Ticket prices for Boston – San Francisco by month *

Month One-way Round-trip
September 2025 26.09.2025
01.09 - 08.09.2025

* Prices found by users over the last 48 hours (they do not represent an offer).

Cheapest flight for from Boston to San Francisco found by our users over the last 48 hours: ticket with Southwest Airlines with a departure on 26.09.2025 and a price of 298 GEL.
Fastest flight for from Boston to San Francisco: ticket with Hawaiian Airlines with the nearest departure on 16.09.2025 and a flight duration of 6hrs. 29min..
Airlines flying from Boston to San Francisco
Airports serving Boston – San Francisco

Boston airports serving flights to San Francisco:

  • Logan International Airport (BOS)

San Francisco airports accepting flights from Boston:

  • San Francisco International Airport (SFO)