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 14 days ago
Extremely Rare Availability
1% of dates checked are available within 10% of the lowest price

Wednesday, December 23rd, 2026

6 round-trip options

Returning
Mon, Dec 28, 2026•5 Day Trip
$762 USD
Google Flights
Returning
Fri, Jan 1, 2027•9 Day Trip
$664 USD
Google Flights
Returning
Sun, Jan 3, 2027•11 Day Trip
$730 USD
Google Flights
Returning
Mon, Jan 4, 2027•12 Day Trip
$580 USD
Google Flights
Returning
Tue, Jan 5, 2027•13 Day Trip
$580 USD
Google Flights
Returning
Wed, Jan 6, 2027•14 Day Trip
$580 USD
Google Flights