$119 Cheap United flights Boston (BOS) to San Francisco (SFO)

$119 Cheap United flights Boston (BOS) to San Francisco (SFO)

Prices were available within the past 7 days and start at $119 for one-way flights and $237 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Sep 6 - Wed, Sep 17

BOS

Boston

SFO

San Francisco

$237 Roundtrip, found 15 hours ago

$237

Roundtrip

found 15 hours ago

Select United flight, departing Sat, Sep 6 from Boston to San Francisco, returning Wed, Sep 17, priced at $237 found 15 hours ago

Sat, Sep 6 - Wed, Sep 17

BOS

Boston

SFO

San Francisco

$247 Roundtrip, found 15 hours ago

$247

Roundtrip

found 15 hours ago

Select United flight, departing Sat, Sep 6 from Boston to San Francisco, returning Wed, Sep 17, priced at $247 found 15 hours ago

Sat, Sep 6 - Wed, Sep 17

BOS

Boston

SFO

San Francisco

$275 Roundtrip, found 15 hours ago

$275

Roundtrip

found 15 hours ago

Select United flight, departing Sat, Sep 6 from Boston to San Francisco, returning Wed, Sep 17, priced at $275 found 15 hours ago

Sat, Sep 6 - Wed, Sep 17

BOS

Boston

SFO

San Francisco

$275 Roundtrip, found 15 hours ago

$275

Roundtrip

found 15 hours ago

Select United flight, departing Sat, Sep 6 from Boston to San Francisco, returning Wed, Sep 17, priced at $275 found 15 hours ago

Tue, Oct 28 - Wed, Nov 5

BOS

Boston

SFO

San Francisco

$284 Roundtrip, found 1 day ago

$284

Roundtrip

found 1 day ago

Select United flight, departing Tue, Oct 28 from Boston to San Francisco, returning Wed, Nov 5, priced at $284 found 1 day ago

Wed, Sep 10 - Mon, Sep 22

BOS

Boston

SFO

San Francisco

$286 Roundtrip, found 3 days ago

$286

Roundtrip

found 3 days ago

Select United flight, departing Wed, Sep 10 from Boston to San Francisco, returning Mon, Sep 22, priced at $286 found 3 days ago