$140 Cheap United flights San Francisco (SFO) to Boston (BOS)

$140 Cheap United flights San Francisco (SFO) to Boston (BOS)

Prices were available within the past 7 days and start at $140 for one-way flights and $279 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Nov 26 - Wed, Dec 3

SFO

San Francisco

BOS

Boston

$279 Roundtrip, found 2 days ago

$279

Roundtrip

found 2 days ago

Select United flight, departing Wed, Nov 26 from San Francisco to Boston, returning Wed, Dec 3, priced at $279 found 2 days ago

Wed, Oct 22 - Sat, Oct 25

SFO

San Francisco

BOS

Boston

$301 Roundtrip, found 3 days ago

$301

Roundtrip

found 3 days ago

Select United flight, departing Wed, Oct 22 from San Francisco to Boston, returning Sat, Oct 25, priced at $301 found 3 days ago

Wed, Oct 22 - Mon, Oct 27

SFO

San Francisco

BOS

Boston

$303 Roundtrip, found 3 days ago

$303

Roundtrip

found 3 days ago

Select United flight, departing Wed, Oct 22 from San Francisco to Boston, returning Mon, Oct 27, priced at $303 found 3 days ago

Wed, Nov 26 - Tue, Dec 2

SFO

San Francisco

BOS

Boston

$310 Roundtrip, found 2 days ago

$310

Roundtrip

found 2 days ago

Select United flight, departing Wed, Nov 26 from San Francisco to Boston, returning Tue, Dec 2, priced at $310 found 2 days ago

Sun, Mar 15 - Thu, Mar 19

SFO

San Francisco

BOS

Boston

$310 Roundtrip, found 4 days ago

$310

Roundtrip

found 4 days ago

Select United flight, departing Sun, Mar 15 from San Francisco to Boston, returning Thu, Mar 19, priced at $310 found 4 days ago

Wed, Oct 22 - Mon, Oct 27

SFO

San Francisco

BOS

Boston

$315 Roundtrip, found 3 days ago

$315

Roundtrip

found 3 days ago

Select United flight, departing Wed, Oct 22 from San Francisco to Boston, returning Mon, Oct 27, priced at $315 found 3 days ago