Flights from Boston to Carlsbad

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, Sep 9 - Tue, Sep 16

BOS

Logan Intl.

SAN

San Diego Intl.

$237 Roundtrip, found 4 days ago

$237

Roundtrip

found 4 days ago

Select Alaska Airlines flight, departing Tue, Sep 9 from Logan Intl. to San Diego Intl., returning Tue, Sep 16, priced at $237 found 4 days ago

Tue, Sep 9 - Wed, Sep 17

BOS

Logan Intl.

SAN

San Diego Intl.

$237 Roundtrip, found 4 days ago

$237

Roundtrip

found 4 days ago

Select Delta flight, departing Tue, Sep 9 from Logan Intl. to San Diego Intl., returning Wed, Sep 17, priced at $237 found 4 days ago

Tue, Sep 9 - Thu, Sep 18

BOS

Logan Intl.

SAN

San Diego Intl.

$257 Roundtrip, found 4 days ago

$257

Roundtrip

found 4 days ago

Select Alaska Airlines flight, departing Tue, Sep 9 from Logan Intl. to San Diego Intl., returning Thu, Sep 18, priced at $257 found 4 days ago

Sun, Sep 14 - Wed, Sep 17

BOS

Logan Intl.

SAN

San Diego Intl.

$267 Roundtrip, found 4 days ago

$267

Roundtrip

found 4 days ago

Select Alaska Airlines flight, departing Sun, Sep 14 from Logan Intl. to San Diego Intl., returning Wed, Sep 17, priced at $267 found 4 days ago

Fri, Jun 6 - Sat, Jun 7

BOS

Logan Intl.

SAN

San Diego Intl.

$272 Roundtrip, found 6 days ago

$272

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Fri, Jun 6 from Logan Intl. to San Diego Intl., returning Sat, Jun 7, priced at $272 found 6 days ago

Fri, Sep 12 - Fri, Sep 19

BOS

Logan Intl.

SAN

San Diego Intl.

$277 Roundtrip, found 4 days ago

$277

Roundtrip

found 4 days ago

Select Alaska Airlines flight, departing Fri, Sep 12 from Logan Intl. to San Diego Intl., returning Fri, Sep 19, priced at $277 found 4 days ago

Fri, Jun 6 - Sat, Jun 7

BOS

Logan Intl.

SAN

San Diego Intl.

$282 Roundtrip, found 6 days ago

$282

Roundtrip

found 6 days ago

Select American Airlines flight, departing Fri, Jun 6 from Logan Intl. to San Diego Intl., returning Sat, Jun 7, priced at $282 found 6 days ago

Fri, Jun 6 - Sat, Jun 7

BOS

Logan Intl.

SAN

San Diego Intl.

$282 Roundtrip, found 6 days ago

$282

Roundtrip

found 6 days ago

Select Spirit Airlines flight, departing Fri, Jun 6 from Logan Intl. to San Diego Intl., returning Sat, Jun 7, priced at $282 found 6 days ago

Fri, Sep 12 - Fri, Sep 19

BOS

Logan Intl.

SAN

San Diego Intl.

$287 Roundtrip, found 4 days ago

$287

Roundtrip

found 4 days ago

Select Alaska Airlines flight, departing Fri, Sep 12 from Logan Intl. to San Diego Intl., returning Fri, Sep 19, priced at $287 found 4 days ago

Fri, Sep 12 - Fri, Sep 19

BOS

Logan Intl.

SAN

San Diego Intl.

$287 Roundtrip, found 4 days ago

$287

Roundtrip

found 4 days ago

Select Delta flight, departing Fri, Sep 12 from Logan Intl. to San Diego Intl., returning Fri, Sep 19, priced at $287 found 4 days ago

Fri, Jun 6 - Sat, Jun 7

BOS

Logan Intl.

SAN

San Diego Intl.

$287 Roundtrip, found 6 days ago

$287

Roundtrip

found 6 days ago

Select United flight, departing Fri, Jun 6 from Logan Intl. to San Diego Intl., returning Sat, Jun 7, priced at $287 found 6 days ago

Fri, Jun 6 - Sat, Jun 7

BOS

Logan Intl.

SAN

San Diego Intl.

$292 Roundtrip, found 6 days ago

$292

Roundtrip

found 6 days ago

Select American Airlines flight, departing Fri, Jun 6 from Logan Intl. to San Diego Intl., returning Sat, Jun 7, priced at $292 found 6 days ago

Fri, Sep 12 - Fri, Sep 19

BOS

Logan Intl.

SAN

San Diego Intl.

$292 Roundtrip, found 4 days ago

$292

Roundtrip

found 4 days ago

Select United flight, departing Fri, Sep 12 from Logan Intl. to San Diego Intl., returning Fri, Sep 19, priced at $292 found 4 days ago

Fri, Jun 6 - Sat, Jun 7

BOS

Logan Intl.

SAN

San Diego Intl.

$294 Roundtrip, found 6 days ago

$294

Roundtrip

found 6 days ago

Select United flight, departing Fri, Jun 6 from Logan Intl. to San Diego Intl., returning Sat, Jun 7, priced at $294 found 6 days ago

Fri, Sep 12 - Fri, Sep 19

BOS

Logan Intl.

SAN

San Diego Intl.

$296 Roundtrip, found 4 days ago

$296

Roundtrip

found 4 days ago

Select Alaska Airlines flight, departing Fri, Sep 12 from Logan Intl. to San Diego Intl., returning Fri, Sep 19, priced at $296 found 4 days ago

Fri, Sep 12 - Fri, Sep 19

BOS

Logan Intl.

CLD

McClellan-Palomar

$297 Roundtrip, found 4 days ago

$297

Roundtrip

found 4 days ago

Select American Airlines flight, departing Fri, Sep 12 from Logan Intl. to McClellan-Palomar, returning Fri, Sep 19, priced at $297 found 4 days ago

Fri, Jun 6 - Sat, Jun 7

BOS

Logan Intl.

SAN

San Diego Intl.

$298 Roundtrip, found 6 days ago

$298

Roundtrip

found 6 days ago

Select United flight, departing Fri, Jun 6 from Logan Intl. to San Diego Intl., returning Sat, Jun 7, priced at $298 found 6 days ago

Fri, Jun 6 - Sat, Jun 7

BOS

Logan Intl.

SAN

San Diego Intl.

$298 Roundtrip, found 6 days ago

$298

Roundtrip

found 6 days ago

Select Spirit Airlines flight, departing Fri, Jun 6 from Logan Intl. to San Diego Intl., returning Sat, Jun 7, priced at $298 found 6 days ago

Tue, Jul 1 - Thu, Jul 3

BOS

Logan Intl.

SAN

San Diego Intl.

$307 Roundtrip, found 1 day ago

$307

Roundtrip

found 1 day ago

Select Hawaiian Airlines flight, departing Tue, Jul 1 from Logan Intl. to San Diego Intl., returning Thu, Jul 3, priced at $307 found 1 day ago

Mon, Jun 30 - Mon, Jul 7

BOS

Logan Intl.

SAN

San Diego Intl.

$307 Roundtrip, found 1 day ago

$307

Roundtrip

found 1 day ago

Select JetBlue Airways flight, departing Mon, Jun 30 from Logan Intl. to San Diego Intl., returning Mon, Jul 7, priced at $307 found 1 day ago