$137 Cheap United flights San Francisco (SFO) to Boston (BOS)

$137 Cheap United flights San Francisco (SFO) to Boston (BOS)

Prices were available within the past 7 days and start at $137 for one-way flights and $437 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Dec 23 - Thu, Jan 1

SFO

San Francisco

BOS

Boston

$437 Roundtrip, found 1 day ago

$437

Roundtrip

found 1 day ago

Select United flight, departing Tue, Dec 23 from San Francisco to Boston, returning Thu, Jan 1, priced at $437 found 1 day ago

Sat, Dec 27 - Thu, Jan 1

SFO

San Francisco

BOS

Boston

$455 Roundtrip, found 1 day ago

$455

Roundtrip

found 1 day ago

Select United flight, departing Sat, Dec 27 from San Francisco to Boston, returning Thu, Jan 1, priced at $455 found 1 day ago

Tue, Dec 23 - Fri, Jan 2

SFO

San Francisco

BOS

Boston

$457 Roundtrip, found 1 day ago

$457

Roundtrip

found 1 day ago

Select United flight, departing Tue, Dec 23 from San Francisco to Boston, returning Fri, Jan 2, priced at $457 found 1 day ago

Sat, Dec 27 - Fri, Jan 2

SFO

San Francisco

BOS

Boston

$475 Roundtrip, found 1 day ago

$475

Roundtrip

found 1 day ago

Select United flight, departing Sat, Dec 27 from San Francisco to Boston, returning Fri, Jan 2, priced at $475 found 1 day ago

Tue, Dec 23 - Wed, Dec 31

SFO

San Francisco

BOS

Boston

$482 Roundtrip, found 1 day ago

$482

Roundtrip

found 1 day ago

Select United flight, departing Tue, Dec 23 from San Francisco to Boston, returning Wed, Dec 31, priced at $482 found 1 day ago

Sat, Dec 27 - Wed, Dec 31

SFO

San Francisco

BOS

Boston

$500 Roundtrip, found 1 day ago

$500

Roundtrip

found 1 day ago

Select United flight, departing Sat, Dec 27 from San Francisco to Boston, returning Wed, Dec 31, priced at $500 found 1 day ago

Tue, Dec 23 - Sat, Jan 3

SFO

San Francisco

BOS

Boston

$507 Roundtrip, found 1 day ago

$507

Roundtrip

found 1 day ago

Select United flight, departing Tue, Dec 23 from San Francisco to Boston, returning Sat, Jan 3, priced at $507 found 1 day ago

Sat, Dec 27 - Sat, Jan 3

SFO

San Francisco

BOS

Boston

$525 Roundtrip, found 1 day ago

$525

Roundtrip

found 1 day ago

Select United flight, departing Sat, Dec 27 from San Francisco to Boston, returning Sat, Jan 3, priced at $525 found 1 day ago

Tue, Dec 23 - Mon, Dec 29

SFO

San Francisco

BOS

Boston

$535 Roundtrip, found 1 day ago

$535

Roundtrip

found 1 day ago

Select United flight, departing Tue, Dec 23 from San Francisco to Boston, returning Mon, Dec 29, priced at $535 found 1 day ago