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

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

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 - Fri, Dec 5

BOS

Boston

SFO

San Francisco

$279 Roundtrip, found 5 days ago

$279

Roundtrip

found 5 days ago

Select United flight, departing Wed, Nov 26 from Boston to San Francisco, returning Fri, Dec 5, priced at $279 found 5 days ago

Sat, Nov 8 - Sat, Nov 15

BOS

Boston

SFO

San Francisco

$310 Roundtrip, found 6 days ago

$310

Roundtrip

found 6 days ago

Select United flight, departing Sat, Nov 8 from Boston to San Francisco, returning Sat, Nov 15, priced at $310 found 6 days ago

Sat, Nov 8 - Sat, Nov 15

BOS

Boston

SFO

San Francisco

$317 Roundtrip, found 6 days ago

$317

Roundtrip

found 6 days ago

Select United flight, departing Sat, Nov 8 from Boston to San Francisco, returning Sat, Nov 15, priced at $317 found 6 days ago

Sat, Nov 8 - Sat, Nov 15

BOS

Boston

SFO

San Francisco

$328 Roundtrip, found 6 days ago

$328

Roundtrip

found 6 days ago

Select United flight, departing Sat, Nov 8 from Boston to San Francisco, returning Sat, Nov 15, priced at $328 found 6 days ago

Sat, Nov 8 - Sat, Nov 15

BOS

Boston

SFO

San Francisco

$328 Roundtrip, found 6 days ago

$328

Roundtrip

found 6 days ago

Select United flight, departing Sat, Nov 8 from Boston to San Francisco, returning Sat, Nov 15, priced at $328 found 6 days ago

Sat, Nov 8 - Sat, Nov 15

BOS

Boston

SFO

San Francisco

$332 Roundtrip, found 6 days ago

$332

Roundtrip

found 6 days ago

Select United flight, departing Sat, Nov 8 from Boston to San Francisco, returning Sat, Nov 15, priced at $332 found 6 days ago