Flights from San Francisco to Watertown

Cheapest flights from San Francisco

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.

Tue, Aug 12 - Wed, Aug 20

SFO

San Francisco Intl.

BOS

Logan Intl.

$237 Roundtrip, found 16 hours ago

$237

Roundtrip

found 16 hours ago

Select Hawaiian Airlines flight, departing Tue, Aug 12 from San Francisco Intl. to Logan Intl., returning Wed, Aug 20, priced at $237 found 16 hours ago

Sat, Sep 27 - Tue, Sep 30

SFO

San Francisco Intl.

BOS

Logan Intl.

$237 Roundtrip, found 1 day ago

$237

Roundtrip

found 1 day ago

Select JetBlue Airways flight, departing Sat, Sep 27 from San Francisco Intl. to Logan Intl., returning Tue, Sep 30, priced at $237 found 1 day ago

Sat, Aug 9 - Wed, Aug 20

SFO

San Francisco Intl.

BOS

Logan Intl.

$248 Roundtrip, found 16 hours ago

$248

Roundtrip

found 16 hours ago

Select Hawaiian Airlines flight, departing Sat, Aug 9 from San Francisco Intl. to Logan Intl., returning Wed, Aug 20, priced at $248 found 16 hours ago

Fri, Aug 8 - Tue, Aug 19

SFO

San Francisco Intl.

BOS

Logan Intl.

$248 Roundtrip, found 16 hours ago

$248

Roundtrip

found 16 hours ago

Select Delta flight, departing Fri, Aug 8 from San Francisco Intl. to Logan Intl., returning Tue, Aug 19, priced at $248 found 16 hours ago

Tue, Aug 12 - Mon, Aug 18

SFO

San Francisco Intl.

BOS

Logan Intl.

$254 Roundtrip, found 17 hours ago

$254

Roundtrip

found 17 hours ago

Select United flight, departing Tue, Aug 12 from San Francisco Intl. to Logan Intl., returning Mon, Aug 18, priced at $254 found 17 hours ago

Wed, Jul 16 - Tue, Jul 22

SFO

San Francisco Intl.

BOS

Logan Intl.

$257 Roundtrip, found 6 days ago

$257

Roundtrip

found 6 days ago

Select American Airlines flight, departing Wed, Jul 16 from San Francisco Intl. to Logan Intl., returning Tue, Jul 22, priced at $257 found 6 days ago

Fri, Aug 15 - Tue, Aug 19

SFO

San Francisco Intl.

BOS

Logan Intl.

$257 Roundtrip, found 17 hours ago

$257

Roundtrip

found 17 hours ago

Select Delta flight, departing Fri, Aug 15 from San Francisco Intl. to Logan Intl., returning Tue, Aug 19, priced at $257 found 17 hours ago

Tue, Aug 12 - Mon, Aug 18

SFO

San Francisco Intl.

BOS

Logan Intl.

$258 Roundtrip, found 17 hours ago

$258

Roundtrip

found 17 hours ago

Select United flight, departing Tue, Aug 12 from San Francisco Intl. to Logan Intl., returning Mon, Aug 18, priced at $258 found 17 hours ago

Sat, Aug 9 - Thu, Aug 21

SFO

San Francisco Intl.

BOS

Logan Intl.

$259 Roundtrip, found 17 hours ago

$259

Roundtrip

found 17 hours ago

Select Alaska Airlines flight, departing Sat, Aug 9 from San Francisco Intl. to Logan Intl., returning Thu, Aug 21, priced at $259 found 17 hours ago

Sat, Sep 27 - Sat, Sep 27

SFO

San Francisco Intl.

BOS

Logan Intl.

$262 Roundtrip, found 1 day ago

$262

Roundtrip

found 1 day ago

Select Hawaiian Airlines flight, departing Sat, Sep 27 from San Francisco Intl. to Logan Intl., returning Sat, Sep 27, priced at $262 found 1 day ago

Wed, Jul 16 - Tue, Jul 22

SFO

San Francisco Intl.

BOS

Logan Intl.

$264 Roundtrip, found 6 days ago

$264

Roundtrip

found 6 days ago

Select United flight, departing Wed, Jul 16 from San Francisco Intl. to Logan Intl., returning Tue, Jul 22, priced at $264 found 6 days ago

Tue, Aug 12 - Sat, Aug 16

SFO

San Francisco Intl.

BOS

Logan Intl.

$266 Roundtrip, found 16 hours ago

$266

Roundtrip

found 16 hours ago

Select JetBlue Airways flight, departing Tue, Aug 12 from San Francisco Intl. to Logan Intl., returning Sat, Aug 16, priced at $266 found 16 hours ago

Thu, Aug 14 - Wed, Aug 20

SFO

San Francisco Intl.

BOS

Logan Intl.

$267 Roundtrip, found 16 hours ago

$267

Roundtrip

found 16 hours ago

Select Hawaiian Airlines flight, departing Thu, Aug 14 from San Francisco Intl. to Logan Intl., returning Wed, Aug 20, priced at $267 found 16 hours ago

Fri, Aug 15 - Mon, Aug 18

SFO

San Francisco Intl.

BOS

Logan Intl.

$268 Roundtrip, found 17 hours ago

$268

Roundtrip

found 17 hours ago

Select Delta flight, departing Fri, Aug 15 from San Francisco Intl. to Logan Intl., returning Mon, Aug 18, priced at $268 found 17 hours ago

Fri, Jul 11 - Thu, Jul 17

SFO

San Francisco Intl.

BOS

Logan Intl.

$269 Roundtrip, found 5 hours ago

$269

Roundtrip

found 5 hours ago

Select United flight, departing Fri, Jul 11 from San Francisco Intl. to Logan Intl., returning Thu, Jul 17, priced at $269 found 5 hours ago

Tue, Aug 12 - Mon, Aug 18

SFO

San Francisco Intl.

BOS

Logan Intl.

$277 Roundtrip, found 17 hours ago

$277

Roundtrip

found 17 hours ago

Select American Airlines flight, departing Tue, Aug 12 from San Francisco Intl. to Logan Intl., returning Mon, Aug 18, priced at $277 found 17 hours ago

Fri, Jul 11 - Thu, Jul 17

SFO

San Francisco Intl.

BOS

Logan Intl.

$277 Roundtrip, found 5 hours ago

$277

Roundtrip

found 5 hours ago

Select JetBlue Airways flight, departing Fri, Jul 11 from San Francisco Intl. to Logan Intl., returning Thu, Jul 17, priced at $277 found 5 hours ago

Fri, Jul 11 - Thu, Jul 17

SFO

San Francisco Intl.

BOS

Logan Intl.

$278 Roundtrip, found 5 hours ago

$278

Roundtrip

found 5 hours ago

Select American Airlines flight, departing Fri, Jul 11 from San Francisco Intl. to Logan Intl., returning Thu, Jul 17, priced at $278 found 5 hours ago

Wed, Jul 9 - Thu, Aug 7

SFO

San Francisco Intl.

BOS

Logan Intl.

$279 Roundtrip, found 16 hours ago

$279

Roundtrip

found 16 hours ago

Select Delta flight, departing Wed, Jul 9 from San Francisco Intl. to Logan Intl., returning Thu, Aug 7, priced at $279 found 16 hours ago

Tue, Aug 12 - Mon, Aug 18

SFO

San Francisco Intl.

BOS

Logan Intl.

$282 Roundtrip, found 17 hours ago

$282

Roundtrip

found 17 hours ago

Select JetBlue Airways flight, departing Tue, Aug 12 from San Francisco Intl. to Logan Intl., returning Mon, Aug 18, priced at $282 found 17 hours ago