Flights from Boston to Sunnyvale

Cheapest flights from Boston

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Sep 3 - Mon, Sep 15

BOS

Logan Intl.

SFO

San Francisco Intl.

$169 Roundtrip, found 6 days ago

$169

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Wed, Sep 3 from Logan Intl. to San Francisco Intl., returning Mon, Sep 15, priced at $169 found 6 days ago

Wed, Sep 3 - Sat, Sep 20

BOS

Logan Intl.

SFO

San Francisco Intl.

$197 Roundtrip, found 6 days ago

$197

Roundtrip

found 6 days ago

Select Delta flight, departing Wed, Sep 3 from Logan Intl. to San Francisco Intl., returning Sat, Sep 20, priced at $197 found 6 days ago

Wed, Sep 3 - Sun, Sep 14

BOS

Logan Intl.

SFO

San Francisco Intl.

$214 Roundtrip, found 6 days ago

$214

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Wed, Sep 3 from Logan Intl. to San Francisco Intl., returning Sun, Sep 14, priced at $214 found 6 days ago

Wed, Sep 3 - Fri, Sep 19

BOS

Logan Intl.

SFO

San Francisco Intl.

$224 Roundtrip, found 6 days ago

$224

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Wed, Sep 3 from Logan Intl. to San Francisco Intl., returning Fri, Sep 19, priced at $224 found 6 days ago

Sat, Sep 6 - Sat, Sep 13

BOS

Logan Intl.

SFO

San Francisco Intl.

$237 Roundtrip, found 1 day ago

$237

Roundtrip

found 1 day ago

Select JetBlue Airways flight, departing Sat, Sep 6 from Logan Intl. to San Francisco Intl., returning Sat, Sep 13, priced at $237 found 1 day ago

Sat, Sep 6 - Wed, Sep 17

BOS

Logan Intl.

SFO

San Francisco Intl.

$247 Roundtrip, found 4 days ago

$247

Roundtrip

found 4 days ago

Select Alaska Airlines flight, departing Sat, Sep 6 from Logan Intl. to San Francisco Intl., returning Wed, Sep 17, priced at $247 found 4 days ago

Sat, Sep 6 - Wed, Sep 17

BOS

Logan Intl.

SFO

San Francisco Intl.

$247 Roundtrip, found 4 days ago

$247

Roundtrip

found 4 days ago

Select United flight, departing Sat, Sep 6 from Logan Intl. to San Francisco Intl., returning Wed, Sep 17, priced at $247 found 4 days ago

Wed, Sep 10 - Mon, Sep 22

BOS

Logan Intl.

SFO

San Francisco Intl.

$248 Roundtrip, found 13 hours ago

$248

Roundtrip

found 13 hours ago

Select Alaska Airlines flight, departing Wed, Sep 10 from Logan Intl. to San Francisco Intl., returning Mon, Sep 22, priced at $248 found 13 hours ago

Wed, Sep 10 - Mon, Sep 22

BOS

Logan Intl.

SFO

San Francisco Intl.

$258 Roundtrip, found 13 hours ago

$258

Roundtrip

found 13 hours ago

Select Alaska Airlines flight, departing Wed, Sep 10 from Logan Intl. to San Francisco Intl., returning Mon, Sep 22, priced at $258 found 13 hours ago

Wed, Sep 10 - Mon, Sep 22

BOS

Logan Intl.

SFO

San Francisco Intl.

$258 Roundtrip, found 13 hours ago

$258

Roundtrip

found 13 hours ago

Select United flight, departing Wed, Sep 10 from Logan Intl. to San Francisco Intl., returning Mon, Sep 22, priced at $258 found 13 hours ago

Mon, Sep 8 - Mon, Sep 15

BOS

Logan Intl.

SFO

San Francisco Intl.

$259 Roundtrip, found 4 days ago

$259

Roundtrip

found 4 days ago

Select Alaska Airlines flight, departing Mon, Sep 8 from Logan Intl. to San Francisco Intl., returning Mon, Sep 15, priced at $259 found 4 days ago

Sat, Sep 6 - Wed, Sep 17

BOS

Logan Intl.

SFO

San Francisco Intl.

$262 Roundtrip, found 4 days ago

$262

Roundtrip

found 4 days ago

Select JetBlue Airways flight, departing Sat, Sep 6 from Logan Intl. to San Francisco Intl., returning Wed, Sep 17, priced at $262 found 4 days ago

Mon, Aug 25 - Tue, Sep 2

PVD

T.F. Green

SFO

San Francisco Intl.

$264 Roundtrip, found 8 hours ago

$264

Roundtrip

found 8 hours ago

Select American Airlines flight, departing Mon, Aug 25 from T.F. Green to San Francisco Intl., returning Tue, Sep 2, priced at $264 found 8 hours ago

Tue, Nov 4 - Thu, Nov 6

BOS

Logan Intl.

SJC

Norman Y. Mineta San Jose Intl.

$264 Roundtrip, found 1 day ago

$264

Roundtrip

found 1 day ago

Select American Airlines flight, departing Tue, Nov 4 from Logan Intl. to Norman Y. Mineta San Jose Intl., returning Thu, Nov 6, priced at $264 found 1 day ago

Wed, Sep 10 - Mon, Sep 22

BOS

Logan Intl.

SFO

San Francisco Intl.

$266 Roundtrip, found 13 hours ago

$266

Roundtrip

found 13 hours ago

Select JetBlue Airways flight, departing Wed, Sep 10 from Logan Intl. to San Francisco Intl., returning Mon, Sep 22, priced at $266 found 13 hours ago

Sun, Sep 7 - Sat, Sep 13

BOS

Logan Intl.

SFO

San Francisco Intl.

$267 Roundtrip, found 1 day ago

$267

Roundtrip

found 1 day ago

Select JetBlue Airways flight, departing Sun, Sep 7 from Logan Intl. to San Francisco Intl., returning Sat, Sep 13, priced at $267 found 1 day ago

Sat, Sep 6 - Wed, Sep 17

BOS

Logan Intl.

SFO

San Francisco Intl.

$268 Roundtrip, found 4 days ago

$268

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Sat, Sep 6 from Logan Intl. to San Francisco Intl., returning Wed, Sep 17, priced at $268 found 4 days ago

Sat, Sep 6 - Wed, Sep 17

BOS

Logan Intl.

SFO

San Francisco Intl.

$272 Roundtrip, found 4 days ago

$272

Roundtrip

found 4 days ago

Select Alaska Airlines flight, departing Sat, Sep 6 from Logan Intl. to San Francisco Intl., returning Wed, Sep 17, priced at $272 found 4 days ago

Wed, Sep 10 - Mon, Sep 22

BOS

Logan Intl.

SFO

San Francisco Intl.

$273 Roundtrip, found 13 hours ago

$273

Roundtrip

found 13 hours ago

Select JetBlue Airways flight, departing Wed, Sep 10 from Logan Intl. to San Francisco Intl., returning Mon, Sep 22, priced at $273 found 13 hours ago

Wed, Sep 10 - Mon, Sep 22

BOS

Logan Intl.

SFO

San Francisco Intl.

$277 Roundtrip, found 13 hours ago

$277

Roundtrip

found 13 hours ago

Select Alaska Airlines flight, departing Wed, Sep 10 from Logan Intl. to San Francisco Intl., returning Mon, Sep 22, priced at $277 found 13 hours ago