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.

Wed, Sep 3 - Sat, Sep 13

SFO

San Francisco Intl.

BOS

Logan Intl.

$237 Roundtrip, found 1 day ago

$237

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Wed, Sep 3 from San Francisco Intl. to Logan Intl., returning Sat, Sep 13, priced at $237 found 1 day ago

Tue, Sep 16 - Sat, Sep 20

SFO

San Francisco Intl.

BOS

Logan Intl.

$237 Roundtrip, found 1 day ago

$237

Roundtrip

found 1 day ago

Select Hawaiian Airlines flight, departing Tue, Sep 16 from San Francisco Intl. to Logan Intl., returning Sat, Sep 20, priced at $237 found 1 day ago

Sat, Sep 20 - Tue, Sep 23

SFO

San Francisco Intl.

BOS

Logan Intl.

$237 Roundtrip, found 1 day ago

$237

Roundtrip

found 1 day ago

Select Delta flight, departing Sat, Sep 20 from San Francisco Intl. to Logan Intl., returning Tue, Sep 23, priced at $237 found 1 day ago

Mon, Sep 15 - Sat, Sep 20

SFO

San Francisco Intl.

BOS

Logan Intl.

$248 Roundtrip, found 1 day ago

$248

Roundtrip

found 1 day ago

Select Hawaiian Airlines flight, departing Mon, Sep 15 from San Francisco Intl. to Logan Intl., returning Sat, Sep 20, priced at $248 found 1 day ago

Wed, Sep 17 - Sun, Sep 21

SFO

San Francisco Intl.

BOS

Logan Intl.

$248 Roundtrip, found 1 day ago

$248

Roundtrip

found 1 day ago

Select JetBlue Airways flight, departing Wed, Sep 17 from San Francisco Intl. to Logan Intl., returning Sun, Sep 21, priced at $248 found 1 day ago

Sat, Sep 20 - Sat, Sep 20

SFO

San Francisco Intl.

BOS

Logan Intl.

$257 Roundtrip, found 1 day ago

$257

Roundtrip

found 1 day ago

Select JetBlue Airways flight, departing Sat, Sep 20 from San Francisco Intl. to Logan Intl., returning Sat, Sep 20, priced at $257 found 1 day ago

Wed, Sep 17 - Sun, Sep 21

SFO

San Francisco Intl.

BOS

Logan Intl.

$258 Roundtrip, found 1 day ago

$258

Roundtrip

found 1 day ago

Select American Airlines flight, departing Wed, Sep 17 from San Francisco Intl. to Logan Intl., returning Sun, Sep 21, priced at $258 found 1 day ago

Mon, Sep 15 - Thu, Sep 18

SFO

San Francisco Intl.

BOS

Logan Intl.

$259 Roundtrip, found 1 day ago

$259

Roundtrip

found 1 day ago

Select Hawaiian Airlines flight, departing Mon, Sep 15 from San Francisco Intl. to Logan Intl., returning Thu, Sep 18, priced at $259 found 1 day ago

Tue, Sep 2 - Tue, Sep 16

SFO

San Francisco Intl.

BOS

Logan Intl.

$266 Roundtrip, found 1 day ago

$266

Roundtrip

found 1 day ago

Select JetBlue Airways flight, departing Tue, Sep 2 from San Francisco Intl. to Logan Intl., returning Tue, Sep 16, priced at $266 found 1 day ago

Sat, Sep 6 - Mon, Sep 15

SFO

San Francisco Intl.

BOS

Logan Intl.

$267 Roundtrip, found 1 day ago

$267

Roundtrip

found 1 day ago

Select Hawaiian Airlines flight, departing Sat, Sep 6 from San Francisco Intl. to Logan Intl., returning Mon, Sep 15, priced at $267 found 1 day ago

Thu, Sep 4 - Fri, Sep 5

SFO

San Francisco Intl.

BOS

Logan Intl.

$269 Roundtrip, found 1 day ago

$269

Roundtrip

found 1 day ago

Select American Airlines flight, departing Thu, Sep 4 from San Francisco Intl. to Logan Intl., returning Fri, Sep 5, priced at $269 found 1 day ago

Mon, Sep 29 - Fri, Oct 10

SFO

San Francisco Intl.

BOS

Logan Intl.

$269 Roundtrip, found 3 days ago

$269

Roundtrip

found 3 days ago

Select JetBlue Airways flight, departing Mon, Sep 29 from San Francisco Intl. to Logan Intl., returning Fri, Oct 10, priced at $269 found 3 days ago

Tue, Sep 2 - Fri, Sep 12

SFO

San Francisco Intl.

BOS

Logan Intl.

$277 Roundtrip, found 1 day ago

$277

Roundtrip

found 1 day ago

Select JetBlue Airways flight, departing Tue, Sep 2 from San Francisco Intl. to Logan Intl., returning Fri, Sep 12, priced at $277 found 1 day ago

Thu, Sep 4 - Fri, Sep 5

SFO

San Francisco Intl.

BOS

Logan Intl.

$278 Roundtrip, found 1 day ago

$278

Roundtrip

found 1 day ago

Select JetBlue Airways flight, departing Thu, Sep 4 from San Francisco Intl. to Logan Intl., returning Fri, Sep 5, priced at $278 found 1 day ago

Wed, Sep 17 - Sun, Sep 21

SFO

San Francisco Intl.

BOS

Logan Intl.

$287 Roundtrip, found 1 day ago

$287

Roundtrip

found 1 day ago

Select JetBlue Airways flight, departing Wed, Sep 17 from San Francisco Intl. to Logan Intl., returning Sun, Sep 21, priced at $287 found 1 day ago

Thu, Sep 4 - Mon, Sep 15

SFO

San Francisco Intl.

BOS

Logan Intl.

$288 Roundtrip, found 1 day ago

$288

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Thu, Sep 4 from San Francisco Intl. to Logan Intl., returning Mon, Sep 15, priced at $288 found 1 day ago

Thu, Sep 4 - Fri, Sep 5

SFO

San Francisco Intl.

BOS

Logan Intl.

$293 Roundtrip, found 1 day ago

$293

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Thu, Sep 4 from San Francisco Intl. to Logan Intl., returning Fri, Sep 5, priced at $293 found 1 day ago

Wed, Sep 17 - Sun, Sep 21

SFO

San Francisco Intl.

BOS

Logan Intl.

$293 Roundtrip, found 1 day ago

$293

Roundtrip

found 1 day ago

Select JetBlue Airways flight, departing Wed, Sep 17 from San Francisco Intl. to Logan Intl., returning Sun, Sep 21, priced at $293 found 1 day ago

Thu, Sep 4 - Fri, Sep 5

SFO

San Francisco Intl.

BOS

Logan Intl.

$295 Roundtrip, found 1 day ago

$295

Roundtrip

found 1 day ago

Select United flight, departing Thu, Sep 4 from San Francisco Intl. to Logan Intl., returning Fri, Sep 5, priced at $295 found 1 day ago

Mon, Aug 18 - Tue, Aug 26

SFO

San Francisco Intl.

BOS

Logan Intl.

$327 Roundtrip, found 21 hours ago

$327

Roundtrip

found 21 hours ago

Select American Airlines flight, departing Mon, Aug 18 from San Francisco Intl. to Logan Intl., returning Tue, Aug 26, priced at $327 found 21 hours ago