Flights from Boston to San Ysidro

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.

Tue, Aug 19 - Tue, Aug 26

BOS

Logan Intl.

SAN

San Diego Intl.

$237 Roundtrip, found 5 days ago

$237

Roundtrip

found 5 days ago

Select JetBlue Airways flight, departing Tue, Aug 19 from Logan Intl. to San Diego Intl., returning Tue, Aug 26, priced at $237 found 5 days ago

Tue, Aug 19 - Wed, Aug 27

BOS

Logan Intl.

SAN

San Diego Intl.

$237 Roundtrip, found 5 days ago

$237

Roundtrip

found 5 days ago

Select Delta flight, departing Tue, Aug 19 from Logan Intl. to San Diego Intl., returning Wed, Aug 27, priced at $237 found 5 days ago

Wed, Aug 20 - Fri, Aug 22

BOS

Logan Intl.

SAN

San Diego Intl.

$257 Roundtrip, found 5 days ago

$257

Roundtrip

found 5 days ago

Select Alaska Airlines flight, departing Wed, Aug 20 from Logan Intl. to San Diego Intl., returning Fri, Aug 22, priced at $257 found 5 days ago

Thu, Aug 21 - Fri, Aug 22

BOS

Logan Intl.

SAN

San Diego Intl.

$277 Roundtrip, found 5 days ago

$277

Roundtrip

found 5 days ago

Select Alaska Airlines flight, departing Thu, Aug 21 from Logan Intl. to San Diego Intl., returning Fri, Aug 22, priced at $277 found 5 days ago

Thu, Aug 21 - Sun, Aug 24

BOS

Logan Intl.

SAN

San Diego Intl.

$279 Roundtrip, found 5 days ago

$279

Roundtrip

found 5 days ago

Select American Airlines flight, departing Thu, Aug 21 from Logan Intl. to San Diego Intl., returning Sun, Aug 24, priced at $279 found 5 days ago

Thu, Jul 24 - Thu, Jul 24

BOS

Logan Intl.

SAN

San Diego Intl.

$281 Roundtrip, found 6 days ago

$281

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Thu, Jul 24 from Logan Intl. to San Diego Intl., returning Thu, Jul 24, priced at $281 found 6 days ago

Sun, Aug 24 - Wed, Aug 27

BOS

Logan Intl.

SAN

San Diego Intl.

$287 Roundtrip, found 5 days ago

$287

Roundtrip

found 5 days ago

Select Hawaiian Airlines flight, departing Sun, Aug 24 from Logan Intl. to San Diego Intl., returning Wed, Aug 27, priced at $287 found 5 days ago

Sat, Jun 28 - Mon, Jun 30

BOS

Logan Intl.

SAN

San Diego Intl.

$291 Roundtrip, found 14 hours ago

$291

Roundtrip

found 14 hours ago

Select Spirit Airlines flight, departing Sat, Jun 28 from Logan Intl. to San Diego Intl., returning Mon, Jun 30, priced at $291 found 14 hours ago

Thu, Aug 21 - Sun, Aug 24

BOS

Logan Intl.

CLD

McClellan-Palomar

$297 Roundtrip, found 5 days ago

$297

Roundtrip

found 5 days ago

Select American Airlines flight, departing Thu, Aug 21 from Logan Intl. to McClellan-Palomar, returning Sun, Aug 24, priced at $297 found 5 days ago

Thu, Jul 24 - Thu, Jul 24

BOS

Logan Intl.

SAN

San Diego Intl.

$297 Roundtrip, found 6 days ago

$297

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Thu, Jul 24 from Logan Intl. to San Diego Intl., returning Thu, Jul 24, priced at $297 found 6 days ago

Sat, Jul 12 - Wed, Jul 16

PVD

T.F. Green

SAN

San Diego Intl.

$300 Roundtrip, found 5 days ago

$300

Roundtrip

found 5 days ago

Select Breeze Airways flight, departing Sat, Jul 12 from T.F. Green to San Diego Intl., returning Wed, Jul 16, priced at $300 found 5 days ago

Thu, Aug 21 - Sun, Aug 24

BOS

Logan Intl.

SAN

San Diego Intl.

$302 Roundtrip, found 5 days ago

$302

Roundtrip

found 5 days ago

Select JetBlue Airways flight, departing Thu, Aug 21 from Logan Intl. to San Diego Intl., returning Sun, Aug 24, priced at $302 found 5 days ago

Sat, Jul 12 - Wed, Jul 16

PVD

T.F. Green

SAN

San Diego Intl.

$305 Roundtrip, found 5 days ago

$305

Roundtrip

found 5 days ago

Select Breeze Airways flight, departing Sat, Jul 12 from T.F. Green to San Diego Intl., returning Wed, Jul 16, priced at $305 found 5 days ago

Thu, Jul 24 - Thu, Jul 24

BOS

Logan Intl.

SAN

San Diego Intl.

$307 Roundtrip, found 6 days ago

$307

Roundtrip

found 6 days ago

Select JetBlue Airways flight, departing Thu, Jul 24 from Logan Intl. to San Diego Intl., returning Thu, Jul 24, priced at $307 found 6 days ago

Sat, Jul 12 - Wed, Jul 16

PVD

T.F. Green

SAN

San Diego Intl.

$309 Roundtrip, found 5 days ago

$309

Roundtrip

found 5 days ago

Select American Airlines flight, departing Sat, Jul 12 from T.F. Green to San Diego Intl., returning Wed, Jul 16, priced at $309 found 5 days ago

Thu, Aug 21 - Sun, Aug 24

BOS

Logan Intl.

SAN

San Diego Intl.

$310 Roundtrip, found 5 days ago

$310

Roundtrip

found 5 days ago

Select United flight, departing Thu, Aug 21 from Logan Intl. to San Diego Intl., returning Sun, Aug 24, priced at $310 found 5 days ago

Thu, Aug 21 - Sun, Aug 24

BOS

Logan Intl.

SAN

San Diego Intl.

$312 Roundtrip, found 5 days ago

$312

Roundtrip

found 5 days ago

Select American Airlines flight, departing Thu, Aug 21 from Logan Intl. to San Diego Intl., returning Sun, Aug 24, priced at $312 found 5 days ago

Thu, Aug 21 - Sun, Aug 24

BOS

Logan Intl.

SAN

San Diego Intl.

$319 Roundtrip, found 5 days ago

$319

Roundtrip

found 5 days ago

Select United flight, departing Thu, Aug 21 from Logan Intl. to San Diego Intl., returning Sun, Aug 24, priced at $319 found 5 days ago

Thu, Aug 21 - Sun, Aug 24

BOS

Logan Intl.

SAN

San Diego Intl.

$321 Roundtrip, found 5 days ago

$321

Roundtrip

found 5 days ago

Select United flight, departing Thu, Aug 21 from Logan Intl. to San Diego Intl., returning Sun, Aug 24, priced at $321 found 5 days ago

Sat, Jul 12 - Wed, Jul 16

PVD

T.F. Green

SAN

San Diego Intl.

$363 Roundtrip, found 5 days ago

$363

Roundtrip

found 5 days ago

Select Breeze Airways flight, departing Sat, Jul 12 from T.F. Green to San Diego Intl., returning Wed, Jul 16, priced at $363 found 5 days ago