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

United AirlinesUAUnited Airlines
Round Trip•Economy
United StatesSFO

San Francisco International Airport

San Francisco, United States
United StatesBOS

Logan International Airport

Boston, United States
$424 USD
-42%$245 USD
Verified 13 days ago
Extremely Rare Availability
1% of dates checked are available within 10% of the lowest price

Saturday, August 29th, 2026

5 round-trip options

Returning
Thu, Sep 3, 2026•5 Day Trip
$315 USD
Google Flights
Returning
Fri, Sep 4, 2026•6 Day Trip
$315 USD
Google Flights
Returning
Tue, Sep 8, 2026•10 Day Trip
$294 USD
Google Flights
Returning
Thu, Sep 10, 2026•12 Day Trip
$335 USD
Google Flights
Returning
Sat, Sep 12, 2026•14 Day Trip
$310 USD
Google Flights