Boston (BOS) to San Francisco (SFO) flight deal in economy from $245

United AirlinesUAUnited Airlines
Round Trip•Economy
United StatesBOS

Logan International Airport

Boston, United States
United StatesSFO

San Francisco International Airport

San Francisco, United States
$409 USD
-40%$245 USD
Verified 16 days ago
Extremely Rare Availability
2% of dates checked are available within 10% of the lowest price

Saturday, January 2nd, 2027

4 round-trip options

Returning
Sat, Jan 9, 2027•7 Day Trip
$590 USD
Google Flights
Returning
Sun, Jan 10, 2027•8 Day Trip
$590 USD
Google Flights
Returning
Mon, Jan 11, 2027•9 Day Trip
$590 USD
Google Flights
Returning
Fri, Jan 15, 2027•13 Day Trip
$600 USD
Google Flights