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, Jun 17 - Fri, Jun 20

BOS

Logan Intl.

SAN

San Diego Intl.

$272 Roundtrip, found 1 day ago

$272

Roundtrip

found 1 day ago

Select Hawaiian Airlines flight, departing Tue, Jun 17 from Logan Intl. to San Diego Intl., returning Fri, Jun 20, priced at $272 found 1 day ago

Tue, Jun 17 - Thu, Jun 26

BOS

Logan Intl.

SAN

San Diego Intl.

$272 Roundtrip, found 1 day ago

$272

Roundtrip

found 1 day ago

Select Delta flight, departing Tue, Jun 17 from Logan Intl. to San Diego Intl., returning Thu, Jun 26, priced at $272 found 1 day ago

Wed, Jul 9 - Sat, Jul 12

BOS

Logan Intl.

SAN

San Diego Intl.

$277 Roundtrip, found 4 days ago

$277

Roundtrip

found 4 days ago

Select Hawaiian Airlines flight, departing Wed, Jul 9 from Logan Intl. to San Diego Intl., returning Sat, Jul 12, priced at $277 found 4 days ago

Tue, Jul 8 - Sat, Jul 12

BOS

Logan Intl.

SAN

San Diego Intl.

$277 Roundtrip, found 4 days ago

$277

Roundtrip

found 4 days ago

Select JetBlue Airways flight, departing Tue, Jul 8 from Logan Intl. to San Diego Intl., returning Sat, Jul 12, priced at $277 found 4 days ago

Wed, Jul 9 - Fri, Jul 11

BOS

Logan Intl.

SAN

San Diego Intl.

$292 Roundtrip, found 4 days ago

$292

Roundtrip

found 4 days ago

Select Hawaiian Airlines flight, departing Wed, Jul 9 from Logan Intl. to San Diego Intl., returning Fri, Jul 11, priced at $292 found 4 days ago

Fri, Jun 20 - Mon, Jun 23

BOS

Logan Intl.

SAN

San Diego Intl.

$297 Roundtrip, found 1 day ago

$297

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Fri, Jun 20 from Logan Intl. to San Diego Intl., returning Mon, Jun 23, priced at $297 found 1 day ago

Wed, Jul 9 - Tue, Jul 15

PVD

T.F. Green

SAN

San Diego Intl.

$297 Roundtrip, found 4 days ago

$297

Roundtrip

found 4 days ago

Select Delta flight, departing Wed, Jul 9 from T.F. Green to San Diego Intl., returning Tue, Jul 15, priced at $297 found 4 days ago

Sat, Jul 12 - Wed, Jul 16

PVD

T.F. Green

SAN

San Diego Intl.

$298 Roundtrip, found 17 hours ago

$298

Roundtrip

found 17 hours ago

Select Breeze Airways flight, departing Sat, Jul 12 from T.F. Green to San Diego Intl., returning Wed, Jul 16, priced at $298 found 17 hours ago

Sat, Jul 12 - Wed, Jul 16

PVD

T.F. Green

SAN

San Diego Intl.

$303 Roundtrip, found 17 hours ago

$303

Roundtrip

found 17 hours ago

Select Breeze Airways flight, departing Sat, Jul 12 from T.F. Green to San Diego Intl., returning Wed, Jul 16, priced at $303 found 17 hours ago

Fri, Jun 20 - Mon, Jun 23

BOS

Logan Intl.

SAN

San Diego Intl.

$307 Roundtrip, found 1 day ago

$307

Roundtrip

found 1 day ago

Select American Airlines flight, departing Fri, Jun 20 from Logan Intl. to San Diego Intl., returning Mon, Jun 23, priced at $307 found 1 day ago

Fri, Jun 20 - Mon, Jun 23

BOS

Logan Intl.

SAN

San Diego Intl.

$307 Roundtrip, found 1 day ago

$307

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Fri, Jun 20 from Logan Intl. to San Diego Intl., returning Mon, Jun 23, priced at $307 found 1 day ago

Fri, Jul 11 - Sun, Jul 13

ORH

Worcester Regional

SAN

San Diego Intl.

$307 Roundtrip, found 4 days ago

$307

Roundtrip

found 4 days ago

Select Delta flight, departing Fri, Jul 11 from Worcester Regional to San Diego Intl., returning Sun, Jul 13, priced at $307 found 4 days ago

Sat, Jul 12 - Wed, Jul 16

PVD

T.F. Green

SAN

San Diego Intl.

$308 Roundtrip, found 17 hours ago

$308

Roundtrip

found 17 hours ago

Select United flight, departing Sat, Jul 12 from T.F. Green to San Diego Intl., returning Wed, Jul 16, priced at $308 found 17 hours ago

Fri, Jun 20 - Mon, Jun 23

BOS

Logan Intl.

SAN

San Diego Intl.

$312 Roundtrip, found 1 day ago

$312

Roundtrip

found 1 day ago

Select American Airlines flight, departing Fri, Jun 20 from Logan Intl. to San Diego Intl., returning Mon, Jun 23, priced at $312 found 1 day ago

Fri, Jun 20 - Mon, Jun 23

BOS

Logan Intl.

CLD

McClellan-Palomar

$317 Roundtrip, found 1 day ago

$317

Roundtrip

found 1 day ago

Select American Airlines flight, departing Fri, Jun 20 from Logan Intl. to McClellan-Palomar, returning Mon, Jun 23, priced at $317 found 1 day ago

Thu, Jul 10 - Mon, Jul 14

BOS

Logan Intl.

SAN

San Diego Intl.

$317 Roundtrip, found 4 days ago

$317

Roundtrip

found 4 days ago

Select Delta flight, departing Thu, Jul 10 from Logan Intl. to San Diego Intl., returning Mon, Jul 14, priced at $317 found 4 days ago

Sat, Jul 12 - Wed, Jul 16

PVD

T.F. Green

SAN

San Diego Intl.

$326 Roundtrip, found 17 hours ago

$326

Roundtrip

found 17 hours ago

Select Breeze Airways flight, departing Sat, Jul 12 from T.F. Green to San Diego Intl., returning Wed, Jul 16, priced at $326 found 17 hours ago

Fri, Jun 20 - Mon, Jun 23

BOS

Logan Intl.

SAN

San Diego Intl.

$344 Roundtrip, found 1 day ago

$344

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Fri, Jun 20 from Logan Intl. to San Diego Intl., returning Mon, Jun 23, priced at $344 found 1 day ago

Tue, Jul 8 - Wed, Jul 16

MHT

Manchester-Boston Regional

SAN

San Diego Intl.

$368 Roundtrip, found 4 days ago

$368

Roundtrip

found 4 days ago

Select JetBlue Airways flight, departing Tue, Jul 8 from Manchester-Boston Regional to San Diego Intl., returning Wed, Jul 16, priced at $368 found 4 days ago

Thu, Jul 10 - Mon, Jul 14

BOS

Logan Intl.

SAN

San Diego Intl.

$478 Roundtrip, found 4 days ago

$478

Roundtrip

found 4 days ago

Select Sun Country Airlines flight, departing Thu, Jul 10 from Logan Intl. to San Diego Intl., returning Mon, Jul 14, priced at $478 found 4 days ago