Flights from San Francisco to Seabrook

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 - Sat, Aug 23

SFO

San Francisco Intl.

BOS

Logan Intl.

$237 Roundtrip, found 5 hours ago

$237

Roundtrip

found 5 hours ago

Select Alaska Airlines flight, departing Tue, Aug 12 from San Francisco Intl. to Logan Intl., returning Sat, Aug 23, priced at $237 found 5 hours ago

Sat, Oct 4 - Wed, Oct 8

SFO

San Francisco Intl.

BOS

Logan Intl.

$237 Roundtrip, found 3 days ago

$237

Roundtrip

found 3 days ago

Select Delta flight, departing Sat, Oct 4 from San Francisco Intl. to Logan Intl., returning Wed, Oct 8, priced at $237 found 3 days ago

Tue, Oct 7 - Sat, Oct 11

SFO

San Francisco Intl.

BOS

Logan Intl.

$237 Roundtrip, found 3 days ago

$237

Roundtrip

found 3 days ago

Select United flight, departing Tue, Oct 7 from San Francisco Intl. to Logan Intl., returning Sat, Oct 11, priced at $237 found 3 days ago

Sat, Aug 16 - Sat, Aug 23

SFO

San Francisco Intl.

BOS

Logan Intl.

$237 Roundtrip, found 5 hours ago

$237

Roundtrip

found 5 hours ago

Select JetBlue Airways flight, departing Sat, Aug 16 from San Francisco Intl. to Logan Intl., returning Sat, Aug 23, priced at $237 found 5 hours ago

Tue, Oct 7 - Sat, Oct 11

SFO

San Francisco Intl.

BOS

Logan Intl.

$247 Roundtrip, found 3 days ago

$247

Roundtrip

found 3 days ago

Select United flight, departing Tue, Oct 7 from San Francisco Intl. to Logan Intl., returning Sat, Oct 11, priced at $247 found 3 days ago

Tue, Aug 12 - Thu, Aug 21

SFO

San Francisco Intl.

BOS

Logan Intl.

$248 Roundtrip, found 5 hours ago

$248

Roundtrip

found 5 hours ago

Select Hawaiian Airlines flight, departing Tue, Aug 12 from San Francisco Intl. to Logan Intl., returning Thu, Aug 21, priced at $248 found 5 hours ago

Wed, Jul 16 - Tue, Jul 22

SFO

San Francisco Intl.

BOS

Logan Intl.

$257 Roundtrip, found 2 days ago

$257

Roundtrip

found 2 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 2 days ago

Tue, Oct 7 - Thu, Oct 9

SFO

San Francisco Intl.

BOS

Logan Intl.

$258 Roundtrip, found 3 days ago

$258

Roundtrip

found 3 days ago

Select Alaska Airlines flight, departing Tue, Oct 7 from San Francisco Intl. to Logan Intl., returning Thu, Oct 9, priced at $258 found 3 days ago

Sun, Aug 17 - Thu, Aug 21

SFO

San Francisco Intl.

BOS

Logan Intl.

$259 Roundtrip, found 5 hours ago

$259

Roundtrip

found 5 hours ago

Select Hawaiian Airlines flight, departing Sun, Aug 17 from San Francisco Intl. to Logan Intl., returning Thu, Aug 21, priced at $259 found 5 hours ago

Tue, Oct 7 - Sat, Oct 11

SFO

San Francisco Intl.

BOS

Logan Intl.

$263 Roundtrip, found 3 days ago

$263

Roundtrip

found 3 days ago

Select United flight, departing Tue, Oct 7 from San Francisco Intl. to Logan Intl., returning Sat, Oct 11, priced at $263 found 3 days ago

Wed, Jul 16 - Tue, Jul 22

SFO

San Francisco Intl.

BOS

Logan Intl.

$264 Roundtrip, found 2 days ago

$264

Roundtrip

found 2 days ago

Select United flight, departing Wed, Jul 16 from San Francisco Intl. to Logan Intl., returning Tue, Jul 22, priced at $264 found 2 days ago

Fri, Aug 15 - Sat, Aug 23

SFO

San Francisco Intl.

BOS

Logan Intl.

$266 Roundtrip, found 4 days ago

$266

Roundtrip

found 4 days ago

Select JetBlue Airways flight, departing Fri, Aug 15 from San Francisco Intl. to Logan Intl., returning Sat, Aug 23, priced at $266 found 4 days ago

Fri, Aug 15 - Sat, Aug 23

SFO

San Francisco Intl.

BOS

Logan Intl.

$267 Roundtrip, found 5 hours ago

$267

Roundtrip

found 5 hours ago

Select Hawaiian Airlines flight, departing Fri, Aug 15 from San Francisco Intl. to Logan Intl., returning Sat, Aug 23, priced at $267 found 5 hours ago

Tue, Oct 7 - Sat, Oct 11

SFO

San Francisco Intl.

BOS

Logan Intl.

$268 Roundtrip, found 3 days ago

$268

Roundtrip

found 3 days ago

Select American Airlines flight, departing Tue, Oct 7 from San Francisco Intl. to Logan Intl., returning Sat, Oct 11, priced at $268 found 3 days ago

Fri, Aug 15 - Sun, Aug 24

SFO

San Francisco Intl.

BOS

Logan Intl.

$269 Roundtrip, found 5 hours ago

$269

Roundtrip

found 5 hours ago

Select United flight, departing Fri, Aug 15 from San Francisco Intl. to Logan Intl., returning Sun, Aug 24, priced at $269 found 5 hours ago

Tue, Oct 7 - Sat, Oct 11

SFO

San Francisco Intl.

BOS

Logan Intl.

$276 Roundtrip, found 3 days ago

$276

Roundtrip

found 3 days ago

Select United flight, departing Tue, Oct 7 from San Francisco Intl. to Logan Intl., returning Sat, Oct 11, priced at $276 found 3 days ago

Sun, Aug 3 - Tue, Aug 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 Sun, Aug 3 from San Francisco Intl. to Logan Intl., returning Tue, Aug 12, priced at $277 found 1 day ago

Fri, Aug 15 - Thu, Aug 21

SFO

San Francisco Intl.

BOS

Logan Intl.

$278 Roundtrip, found 5 hours ago

$278

Roundtrip

found 5 hours ago

Select Alaska Airlines flight, departing Fri, Aug 15 from San Francisco Intl. to Logan Intl., returning Thu, Aug 21, priced at $278 found 5 hours ago

Sat, Oct 25 - Tue, Dec 2

OAK

Oakland Intl.

BOS

Logan Intl.

$297 Roundtrip, found 3 days ago

$297

Roundtrip

found 3 days ago

Select Delta flight, departing Sat, Oct 25 from Oakland Intl. to Logan Intl., returning Tue, Dec 2, priced at $297 found 3 days ago

Fri, Aug 15 - Mon, Aug 25

SFO

San Francisco Intl.

BOS

Logan Intl.

$473 Roundtrip, found 4 days ago

$473

Roundtrip

found 4 days ago

Select Sun Country Airlines flight, departing Fri, Aug 15 from San Francisco Intl. to Logan Intl., returning Mon, Aug 25, priced at $473 found 4 days ago