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

Wednesday, November 18th, 2026

6 round-trip options

Returning
Mon, Nov 23, 2026•5 Day Trip
$347 USD
Google Flights
Returning
Fri, Nov 27, 2026•9 Day Trip
$497 USD
Google Flights
Returning
Sun, Nov 29, 2026•11 Day Trip
$908 USD
Google Flights
Returning
Mon, Nov 30, 2026•12 Day Trip
$717 USD
Google Flights
Returning
Tue, Dec 1, 2026•13 Day Trip
$442 USD
Google Flights
Returning
Wed, Dec 2, 2026•14 Day Trip
$347 USD
Google Flights